Class: MathGL::MglGraph
- Inherits:
-
Object
- Object
- MathGL::MglGraph
- Defined in:
- lib/mathgl/doc/libdoc_core_en.rb,
ext/mathgl/mathgl.cxx
Overview
Proxy of C++ MathGL::MglGraph class
Instance Method Summary collapse
-
#add_legend(text, style) ⇒ nil
Legend.
-
#add_light ⇒ Object
Lighting.
-
#add_range(dir, v1, v2) ⇒ nil
Ranges (bounding box).
-
#add_tick(dir, val, lbl) ⇒ nil
Ticks.
-
#adjust(dir = "xyzc") ⇒ nil
Ticks.
-
#alpha(enable) ⇒ nil
Transparency.
-
#arc ⇒ Object
Primitives.
-
#area ⇒ Object
1D plotting.
-
#aspect(ax, ay, az = 1) ⇒ nil
Subplots and rotation.
-
#axial ⇒ Object
2D plotting.
-
#axis(dir = "xyz", stl = "", opt = "") ⇒ nil
Axis and Colorbar.
-
#ball(p, col = 'r') ⇒ nil
Primitives.
-
#barh ⇒ Object
1D plotting.
-
#bars ⇒ Object
1D plotting.
-
#beam ⇒ Object
3D plotting.
-
#belt ⇒ Object
2D plotting.
-
#box(col = "", ticks = true) ⇒ nil
Axis and Colorbar.
-
#box_plot ⇒ Object
1D plotting.
-
#boxs ⇒ Object
2D plotting.
-
#calc_scr(p) ⇒ MglPoint
Bitmap in memory.
-
#calc_xyz(xs, ys) ⇒ MglPoint
Bitmap in memory.
-
#candle ⇒ Object
1D plotting.
-
#chart(a, col = "", opt = "") ⇒ nil
1D plotting.
-
#check_version(ver) ⇒ bool
. Return nonzero if MathGL version is appropriate for required by ver, i.e. if major version is the same and minor version is greater or equal to one in ver..
-
#circle(p, r, stl = "r") ⇒ nil
Primitives.
-
#clear_frame(i) ⇒ nil
Frames/Animation.
-
#clear_legend ⇒ nil
Legend.
-
#clf ⇒ Object
Background.
-
#close_gif ⇒ nil
Frames/Animation.
-
#cloud ⇒ Object
3D plotting.
-
#colorbar(v, sch, x, y, w = 1, h = 1) ⇒ nil
Axis and Colorbar.
-
#column_plot(num, ind, d = 0) ⇒ nil
Subplots and rotation.
-
#combine(g) ⇒ Integer
Parallelization.
-
#cone(p1, p2, r1, r2 = -1, stl = "B") ⇒ nil
Primitives.
-
#cones ⇒ Object
1D plotting.
-
#cont ⇒ Object
2D plotting.
-
#cont3 ⇒ Object
3D plotting.
-
#cont_d ⇒ Object
2D plotting.
-
#cont_f ⇒ Object
2D plotting.
-
#cont_fx(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#cont_fy(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#cont_fz(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#cont_v ⇒ Object
2D plotting.
-
#cont_x(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#cont_y(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#cont_z(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#contf3 ⇒ Object
3D plotting.
-
#copy_font(from) ⇒ nil
Font settings.
-
#crust(x, y, z, sch = "", opt = "") ⇒ nil
Other plotting.
-
#curve(p1, d1, p2, d2, stl = "B", num = 100) ⇒ nil
Primitives.
-
#cut_off(cond) ⇒ nil
Cutting.
-
#data_grid(u, x, y, z, opt = "") ⇒ nil
Data manipulation.
-
#default_plot_param ⇒ nil
Graphics setup.
-
#del_frame(i) ⇒ nil
Frames/Animation.
-
#dens ⇒ Object
2D plotting.
-
#dens3 ⇒ Object
3D plotting.
-
#dens_x(a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#dens_y(a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#dens_z(a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting.
-
#dew ⇒ Object
Vector fields.
-
#dots ⇒ Object
Other plotting.
-
#drop(p, d, r, col = "r", shift = 1, ap = 1) ⇒ nil
Primitives.
-
#ellipse(p1, p2, r, col = "r") ⇒ nil
Primitives.
-
#end_frame ⇒ nil
Frames/Animation.
-
#end_group ⇒ nil
Export picture.
-
#error ⇒ Object
1D plotting.
-
#export_mgld(fname, descr = "") ⇒ nil
Export to file.
-
#face(p1, p2, p3, p4, stl = "w") ⇒ nil
Primitives.
-
#face_x(x0, y0, z0, wy, wz, stl = "w", d1 = 0, d2 = 0) ⇒ nil
Primitives.
-
#face_y(x0, y0, z0, wx, wz, stl = "w", d1 = 0, d2 = 0) ⇒ nil
Primitives.
-
#face_z(x0, y0, z0, wx, wy, stl = "w", d1 = 0, d2 = 0) ⇒ nil
Primitives.
-
#fall ⇒ Object
2D plotting.
-
#fill ⇒ Object
Data manipulation.
-
#fit ⇒ Object
Nonlinear fitting.
-
#fit2 ⇒ Object
Nonlinear fitting.
-
#fit3 ⇒ Object
Nonlinear fitting.
-
#fit_s ⇒ Object
Nonlinear fitting.
-
#flow ⇒ Object
Vector fields.
-
#flow_p ⇒ Object
Vector fields.
-
#fog(d, dz = 0.25) ⇒ nil
Fog.
-
#fplot(eqx, eqy, eqz, pen, opt = "") ⇒ nil
Other plotting.
-
#fsurf(eqx, eqy, eqz, sch = "", opt = "") ⇒ nil
Other plotting.
-
#get_bgrn(buf, size) ⇒ nil
Bitmap in memory.
-
#get_fit ⇒ String
Nonlinear fitting.
-
#get_fit_chi ⇒ Float
Nonlinear fitting.
-
#get_frame(i) ⇒ nil
Frames/Animation.
-
#get_height ⇒ Integer
Bitmap in memory.
-
#get_num_frame ⇒ Integer
Frames/Animation.
-
#get_obj_id(xs, ys) ⇒ Integer
Bitmap in memory.
-
#get_plot_id ⇒ String
Default sizes.
-
#get_quality ⇒ Integer
Export picture.
-
#get_rgb ⇒ Object
Bitmap in memory.
-
#get_rgba ⇒ Object
Bitmap in memory.
-
#get_spl_id(xs, ys) ⇒ Integer
Bitmap in memory.
-
#get_warn ⇒ Integer
Error handling.
-
#get_width ⇒ Integer
Bitmap in memory.
-
#global_warn ⇒ String
Error handling.
-
#grad ⇒ Object
Vector fields.
-
#grid ⇒ Object
2D plotting.
-
#grid3 ⇒ Object
3D plotting.
-
#grid_plot(nx, ny, ind, d = 0) ⇒ nil
Subplots and rotation.
-
#highlight(id) ⇒ nil
Bitmap in memory.
-
#hist ⇒ Object
Data manipulation.
-
#import_mgld(fname, add = false) ⇒ nil
Export to file.
-
#in_plot(x1, x2, y1, y2, rel = true) ⇒ nil
Subplots and rotation.
-
#initialize ⇒ MglGraph
constructor
Create and delete objects.
-
#is_active(xs, ys, d = 1) ⇒ long
Bitmap in memory.
-
#label ⇒ Object
1D plotting.
-
#legend(x, y, fnt = "#", opt = "") ⇒ nil
Legend.
-
#light(n, enable) ⇒ nil
Lighting.
-
#line(p1, p2, stl = "B", num = 2) ⇒ nil
Primitives.
-
#load_background(fname, alpha = 1) ⇒ nil
Background.
-
#load_font(name, path = "") ⇒ nil
Font settings.
-
#logo ⇒ Object
Primitives.
-
#map ⇒ Object
Dual plotting.
-
#mark ⇒ Object
1D plotting.
-
#mesh ⇒ Object
2D plotting.
-
#message ⇒ String
Error handling.
-
#mpi_recv(id) ⇒ Integer
Parallelization.
-
#mpi_send(id) ⇒ Integer
Parallelization.
-
#multi_plot(nx, ny, m, dx, dy, stl = "<>_^") ⇒ nil
Subplots and rotation.
-
#need_stop ⇒ bool
Stop drawing.
-
#new_frame ⇒ nil
Frames/Animation.
-
#ohlc ⇒ Object
1D plotting.
-
#pde(ham, ini_re, ini_im, dz = 0.1, k0 = 100, opt = "") ⇒ MglData
Data manipulation.
-
#perspective(a) ⇒ nil
Subplots and rotation.
-
#pipe ⇒ Object
Vector fields.
-
#plot ⇒ Object
1D plotting.
-
#polygon(p0, p1, num, col = "r") ⇒ nil
Primitives.
-
#pop ⇒ nil
Subplots and rotation.
-
#push ⇒ nil
Subplots and rotation.
-
#puts(p, d, text, fnt = ":L", size = -1) ⇒ nil
Text printing.
-
#puts_fit(p, prefix = "", font = "", size = -1) ⇒ nil
Nonlinear fitting.
-
#quad_plot ⇒ Object
Other plotting.
-
#radar(a, pen = "", opt = "") ⇒ nil
1D plotting.
-
#rasterize ⇒ nil
Background.
-
#region ⇒ Object
1D plotting.
-
#reset_frames ⇒ nil
Frames/Animation.
-
#restore_font ⇒ nil
Font settings.
-
#rhomb(p1, p2, r, col = "r") ⇒ nil
Primitives.
-
#rotate(tetx, tetz, tety = 0) ⇒ nil
Subplots and rotation.
-
#rotate_n(tet, x, y, z) ⇒ nil
Subplots and rotation.
-
#set_alpha_def(val) ⇒ nil
Transparency.
-
#set_ambient(bright = 0.5) ⇒ nil
Lighting.
-
#set_arrow_size(val) ⇒ nil
Default sizes.
-
#set_auto_ranges ⇒ Object
Ranges (bounding box).
-
#set_axis_stl(stl = "k", tck = 0, sub = 0) ⇒ nil
Ticks.
-
#set_bar_width(val) ⇒ nil
Default sizes.
-
#set_color(id, r, g, b) ⇒ nil
Palette and colors.
-
#set_coor(how) ⇒ nil
Curved coordinates.
-
#set_cut(val) ⇒ nil
Cutting.
-
#set_cut_box(p1, p1) ⇒ nil
Cutting.
-
#set_def_font(name, path = "") ⇒ nil
Font settings.
-
#set_def_scheme(sch) ⇒ nil
Palette and colors.
-
#set_diffuse(bright) ⇒ nil
Lighting.
-
#set_draw_reg(nx = 1, ny = 1, m = 0) ⇒ long
Bitmap in memory.
-
#set_event_func(func, par = NULL) ⇒ bool
Stop drawing.
-
#set_face_num(val) ⇒ nil
Default sizes.
-
#set_font_def(fnt) ⇒ nil
Font settings.
-
#set_font_size(val) ⇒ nil
Font settings.
-
#set_font_size_cm(cm, dpi = 72) ⇒ nil
Font settings.
-
#set_font_size_in(cm, dpi = 72) ⇒ nil
Font settings.
-
#set_font_size_pt(cm, dpi = 72) ⇒ nil
Font settings.
-
#set_frame(i) ⇒ nil
Frames/Animation.
-
#set_func(eqx, eqy, eqz = "", eqa = "") ⇒ nil
Curved coordinates.
-
#set_global_warn(info) ⇒ nil
Error handling.
-
#set_legend_marks(num) ⇒ nil
Legend.
-
#set_mark_size(val) ⇒ nil
Default sizes.
-
#set_mask ⇒ Object
Masks.
-
#set_mask_angle(angle) ⇒ nil
Masks.
-
#set_mesh_num(val) ⇒ nil
Default sizes.
-
#set_obj_id(id) ⇒ nil
Bitmap in memory.
-
#set_origin ⇒ Object
Ranges (bounding box).
-
#set_origin_tick(val = true) ⇒ nil
Ticks.
-
#set_palette(colors) ⇒ nil
Palette and colors.
-
#set_plot_factor(val) ⇒ nil
Subplots and rotation.
-
#set_plot_id(id) ⇒ nil
Default sizes.
-
#set_quality(val = MGL_DRAW_NORM) ⇒ nil
Export picture.
-
#set_range(dir, dat, add = false) ⇒ nil
Ranges (bounding box).
-
#set_ranges ⇒ Object
Ranges (bounding box).
-
#set_rotated_text(val) ⇒ nil
Font settings.
-
#set_size(width, height) ⇒ nil
Export picture.
-
#set_tick_len(val, stt = 1) ⇒ nil
Ticks.
-
#set_tick_rotate(val) ⇒ nil
Ticks.
-
#set_tick_shift(d) ⇒ nil
Ticks.
-
#set_tick_skip(val) ⇒ nil
Ticks.
-
#set_tick_templ(dir, templ) ⇒ nil
Ticks.
-
#set_ticks(dir, d = 0, ns = 0, org = NAN, fact = "") ⇒ nil
Ticks.
-
#set_ticks_time(dir, val, templ) ⇒ nil
Ticks.
-
#set_ticks_val ⇒ Object
Ticks.
-
#set_time_utc(val) ⇒ nil
Ticks.
-
#set_transp_type(type) ⇒ nil
Transparency.
-
#set_tune_ticks(tune, pos = 1.15) ⇒ nil
Ticks.
-
#set_warn(code, info = "") ⇒ nil
Error handling.
-
#show_frame(i) ⇒ nil
Frames/Animation.
-
#show_image(viewer, nowait = false) ⇒ nil
Export to file.
-
#sphere(p, r, stl = "r") ⇒ nil
Primitives.
-
#start_gif(fname, ms = 100) ⇒ nil
Frames/Animation.
-
#start_group(name) ⇒ nil
Export picture.
-
#stem ⇒ Object
1D plotting.
-
#step ⇒ Object
1D plotting.
-
#stfa ⇒ Object
Dual plotting.
-
#stick_plot(num, ind, tet, phi) ⇒ nil
Subplots and rotation.
-
#stop(stop = true) ⇒ nil
Stop drawing.
-
#sub_plot(nx, ny, m, stl = "<>_^", dx = 0, dy = 0) ⇒ nil
Subplots and rotation.
-
#suppress_warn(state) ⇒ nil
Error handling.
-
#surf ⇒ Object
2D plotting.
-
#surf3 ⇒ Object
3D plotting.
-
#surf_3a ⇒ Object
Dual plotting.
-
#surf_3c ⇒ Object
Dual plotting.
-
#surf_a ⇒ Object
Dual plotting.
-
#surf_c ⇒ Object
Dual plotting.
-
#table ⇒ Object
1D plotting.
-
#tape ⇒ Object
1D plotting.
-
#tens ⇒ Object
1D plotting.
-
#ternary(tern) ⇒ nil
Curved coordinates.
-
#text ⇒ Object
Text printing.
-
#text_mark ⇒ Object
1D plotting.
-
#tile ⇒ Object
2D plotting.
-
#tile_s ⇒ Object
Dual plotting.
-
#title(txt, stl = "", size = -2) ⇒ nil
Subplots and rotation.
-
#torus(r, z, pen = "", opt = "") ⇒ nil
1D plotting.
-
#traj ⇒ Object
Vector fields.
-
#tri_cont ⇒ Object
Other plotting.
-
#tri_cont_v ⇒ Object
Other plotting.
-
#tri_plot ⇒ Object
Other plotting.
-
#tube ⇒ Object
1D plotting.
-
#vect ⇒ Object
Vector fields.
-
#vect3 ⇒ Object
Vector fields.
-
#view(tetx, tetz, tety = 0) ⇒ nil
Subplots and rotation.
-
#write_bmp(fname, descr = "") ⇒ nil
Export to file.
-
#write_bps(fname, descr = "") ⇒ nil
Export to file.
-
#write_eps(fname, descr = "") ⇒ nil
Export to file.
-
#write_frame(fname = "", descr = "") ⇒ nil
Export to file.
-
#write_gif(fname, descr = "") ⇒ nil
Export to file.
-
#write_jpeg(fname, descr = "") ⇒ nil
Export to file.
-
#write_json(fname, descr = "") ⇒ nil
Export to file.
-
#write_obj(fname, descr = "") ⇒ nil
Export to file.
-
#write_off(fname, descr = "", colored = false) ⇒ nil
Export to file.
-
#write_png(fname, descr = "", compr = "", alpha = true) ⇒ nil
Export to file.
-
#write_prc(fname, descr = "", make_pdf = true) ⇒ nil
Export to file.
-
#write_stl(fname, descr = "") ⇒ nil
Export to file.
-
#write_svg(fname, descr = "") ⇒ nil
Export to file.
-
#write_tex(fname, descr = "") ⇒ nil
Export to file.
-
#write_tga(fname, descr = "") ⇒ nil
Export to file.
-
#write_xyz(fname, descr = "") ⇒ nil
Export to file.
-
#zoom(x1, y1, x2, y2) ⇒ nil
Subplots and rotation.
-
#zoom_axis(p1, p2) ⇒ nil
Ranges (bounding box).
Constructor Details
#initialize(kind = 0, width = 600, height = 400) ⇒ MglGraph #initialize(gr) ⇒ MglGraph
Create and delete objects. Creates the instance of class mglGraph with specified sizes width and height. Parameter kind may have following values: ‘0’ – use default plotter, ‘1’ – use OpenGL plotter.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 31 def initialize end |
Instance Method Details
#add_legend(text, style) ⇒ nil
Legend. Adds string text to internal legend accumulator. The style of described line and mark is specified in string style (see Line styles).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2083 def add_legend end |
#add_light(n, d, c = 'w', bright = 0.5, ap = 0) ⇒ nil #add_light(n, r, d, c = 'w', bright = 0.5, ap = 0) ⇒ nil
Lighting. The function adds a light source with identification n in direction d with color c and with brightness bright (which must be in range (0,1)). If position r is specified and isn’t NAN then light source is supposed to be local otherwise light source is supposed to be placed at infinity.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 115 def add_light end |
#add_range(dir, v1, v2) ⇒ nil
Ranges (bounding box). Sets or adds the range for ‘x’-,‘y’-,‘z’- coordinate or coloring (‘c’). If one of values is NAN then it is ignored. See also ranges.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 532 def add_range end |
#add_tick(dir, val, lbl) ⇒ nil
Ticks. The same as previous but add single tick label lbl at position val to the lest of existed ones.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 733 def add_tick end |
#adjust(dir = "xyzc") ⇒ nil
Ticks. Set the ticks step, number of sub-ticks and initial ticks position to be the most human readable for the axis along direction(s) dir. Also set SetTuneTicks(true). Usually you don’t need to call this function except the case of returning to default settings.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 688 def adjust end |
#alpha(enable) ⇒ nil
Transparency. Sets the transparency on/off and returns previous value of transparency. It is recommended to call this function before any plotting command. Default value is transparency off.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 50 def alpha end |
#arc(p0, p1, a, col = "r") ⇒ nil #arc(p0, pa, p1, a, col = "r") ⇒ nil
Primitives. Draw the arc around axis pa (default is z-axis pa=(0,0,1)) with center at p0 and starting from point p1. Parameter a set the angle of arc in degree. Parameter col may contain color of the arc and arrow style for arc edges.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1849 def arc end |
#area(y, pen = "", opt = "") ⇒ nil #area(x, y, pen = "", opt = "") ⇒ nil #area(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw continuous lines between points and fills it to axis plane. Also you can use gradient filling if number of specified colors is equal to 2*number of curves. See also plot, bars, stem, region. Area sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2252 def area end |
#aspect(ax, ay, az = 1) ⇒ nil
Subplots and rotation. Defines aspect ratio for the plot. The viewable axes will be related one to another as the ratio Ax:Ay:Az. For the best effect it should be used after rotate function. If Ax is NAN then function try to select optimal aspect ratio to keep equal ranges for x-y axis. At this, Ay will specify proportionality factor, or set to use automatic one if Ay=NAN.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 974 def aspect end |
#axial(z, sch = "", opt = "", num = 3) ⇒ nil #axial(x, y, z, sch = "", opt = "", num = 3) ⇒ nil
2D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 3).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3049 def axial end |
#axis(dir = "xyz", stl = "", opt = "") ⇒ nil
Axis and Colorbar. Draws axes with ticks (see Axis settings). Parameter dir may contain: Styles of ticks and axis can be overrided by using stl string. Axis and ticks
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1960 def axis end |
#ball(p, col = 'r') ⇒ nil
Primitives. Draws a mark (point ‘.’ by default) at position p=(x, y, z) with color col.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1633 def ball end |
#barh(v, pen = "", opt = "") ⇒ nil #barh(y, v, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw horizontal bars from points to axis plane. If string contain symbol ‘a’ then lines are drawn one above another (like summation). If string contain symbol ‘f’ then waterfall chart is drawn for determining the cumulative effect of sequentially introduced positive or negative values. You can give different colors for positive and negative values if number of specified colors is equal to 2*number of curves. If pen contain ‘<’, ‘^’ or ‘>’ then boxes will be aligned left, right or centered at its x-coordinates. See also bars, barwidth. Barh sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2366 def end |
#bars(y, pen = "", opt = "") ⇒ nil #bars(x, y, pen = "", opt = "") ⇒ nil #bars(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw vertical bars from points to axis plane. If string pen contain symbol ‘a’ then lines are drawn one above another (like summation). If string contain symbol ‘f’ then waterfall chart is drawn for determining the cumulative effect of sequentially introduced positive or negative values. You can give different colors for positive and negative values if number of specified colors is equal to 2*number of curves. If pen contain ‘<’, ‘^’ or ‘>’ then boxes will be aligned left, right or centered at its x-coordinates. See also barh, cones, area, stem, chart, barwidth. Bars sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2347 def end |
#beam(tr, g1, g2, a, r, stl = "", flag = 0, num = 3) ⇒ nil #beam(val, tr, g1, g2, a, r, stl = "", flag = 0) ⇒ nil
3D plotting. Draws the isosurface for 3d array a at constant values of a=val. This is special kind of plot for a specified in accompanied coordinates along curve tr with orts g1, g2 and with transverse scale r. Variable flag is bitwise: ‘0x1’ - draw in accompanied (not laboratory) coordinates; ‘0x2’ - draw projection to rho-z plane; ‘0x4’ - draw normalized in each slice field. The x-size of data arrays tr, g1, g2 must be nx>2. The y-size of data arrays tr, g1, g2 and z-size of the data array a must be equal. See also surf3.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3328 def beam end |
#belt(z, sch = "", opt = "") ⇒ nil #belt(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws belts for surface specified parametrically (x(i,j), y(i,j), z(i,j)). This plot can be used as 3d generalization of plot). If sch contain ‘x’ then belts are drawn along x-direction else (by default) belts are drawn along y-direction. See also fall, surf, plot, meshnum. Belt sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2797 def belt end |
#box(col = "", ticks = true) ⇒ nil
Axis and Colorbar. Draws bounding box outside the plotting volume with color col. If col contain ‘@’ then filled faces are drawn. At this first color is used for faces (default is light yellow), last one for edges. Bounding box
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2034 def box end |
#box_plot(a, pen = "", opt = "") ⇒ nil #box_plot(x, a, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw boxplot (also known as a box-and-whisker diagram) at points x(i). This is five-number summaries of data a(i,j) (minimum, lower quartile (Q1), median (Q2), upper quartile (Q3) and maximum) along second (j-th) direction. If pen contain ‘<’, ‘^’ or ‘>’ then boxes will be aligned left, right or centered at its x-coordinates. See also plot, error, bars, barwidth. BoxPlot sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2425 def box_plot end |
#boxs(z, sch = "", opt = "") ⇒ nil #boxs(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws vertical boxes for surface specified parametrically (x(i,j), y(i,j), z(i,j)). Symbol ‘@’ in sch set to draw filled boxes. See also surf, dens, tile, step. Boxs sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2817 def boxs end |
#calc_scr(p) ⇒ MglPoint
Bitmap in memory. Calculate screen point (xs,ys) for 3D coordinate (x,y,z). The calculation are done for the last used InPlot (see Subplots and rotation).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1483 def calc_scr end |
#calc_xyz(xs, ys) ⇒ MglPoint
Bitmap in memory. Calculate 3D coordinate (x,y,z) for screen point (xs,ys). At this moment it ignore perspective and transformation formulas (curvilinear coordinates). The calculation are done for the last used InPlot (see Subplots and rotation).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1473 def calc_xyz end |
#candle(v1, pen = "", opt = "") ⇒ nil #candle(v1, v2, pen = "", opt = "") ⇒ nil #candle(v1, y1, y2, pen = "", opt = "") ⇒ nil #candle(v1, v2, y1, y2, pen = "", opt = "") ⇒ nil #candle(x, v1, v2, y1, y2, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw candlestick chart at points x(i). This is a combination of a line-chart and a bar-chart, in that each bar represents the range of price movement over a given time interval. Wire (or white) candle correspond to price growth v1(i)<v2(i), opposite case – solid (or dark) candle. You can give different colors for growth and decrease values if number of specified colors is equal to 2. If pen contain ‘#’ then the wire candle will be used even for 2-color scheme. “Shadows” show the minimal y1 and maximal y2 prices. If v2 is absent then it is determined as v2(i)=v1(i+1). See also plot, bars, ohlc, barwidth. Candle sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2471 def candle end |
#chart(a, col = "", opt = "") ⇒ nil
1D plotting. The function draws colored stripes (boxes) for data in array a. The number of stripes is equal to the number of rows in a (equal to a.ny). The color of each next stripe is cyclically changed from colors specified in string col or in palette Pal (see Palette and colors). Spaces in colors denote transparent “color” (i.e. corresponding stripe(s) are not drawn). The stripe width is proportional to value of element in a. Chart is plotted only for data with non-negative elements. If string col have symbol ‘#’ then black border lines are drawn. The most nice form the chart have in 3d (after rotation of coordinates) or in cylindrical coordinates (becomes so called Pie chart). Chart sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2406 def chart end |
#check_version(ver) ⇒ bool
. Return nonzero if MathGL version is appropriate for required by ver, i.e. if major version is the same and minor version is greater or equal to one in ver.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 15 def check_version end |
#circle(p, r, stl = "r") ⇒ nil
Primitives. Draw the circle with radius r and center at point p=(x0, y0, z0). Parameter col may contain
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1802 def circle end |
#clear_frame(i) ⇒ nil
Frames/Animation. Clear list of primitives for current drawing.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1385 def clear_frame end |
#clear_legend ⇒ nil
Legend. Clears saved legend strings.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2092 def clear_legend end |
#clf ⇒ nil #clf(col) ⇒ nil #clf(col) ⇒ nil #clf(r, g, b) ⇒ nil
Background. Clear the picture and fill background by specified color.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1602 def clf end |
#close_gif ⇒ nil
Frames/Animation. Finish writing animated GIF and close connected pointers.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1405 def close_gif end |
#cloud(a, sch = "", opt = "") ⇒ nil #cloud(x, y, z, a, sch = "", opt = "") ⇒ nil
3D plotting. The function draws cloud plot for 3d data specified parametrically a(i,j,k)(x(i,j,k), y(i,j,k), z(i,j,k)). This plot is a set of cubes with color and transparency proportional to value of a. The resulting plot is like cloud – low value is transparent but higher ones are not. The number of plotting cells depend on meshnum. If string sch contain symbol ‘.’ then lower quality plot will produced with much low memory usage. If string sch contain symbol ‘i’ then transparency will be inversed, i.e. higher become transparent and lower become not transparent. See also surf3, meshnum. Cloud sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3156 def cloud end |
#colorbar(v, sch, x, y, w = 1, h = 1) ⇒ nil
Axis and Colorbar. The same as previous but with sharp colors sch (current palette if sch=“”) for values v. ContD sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1971 def end |
#column_plot(num, ind, d = 0) ⇒ nil
Subplots and rotation. Puts further plotting in ind-th cell of column with num cells. The position is relative to previous subplot (or inplot with rel=false). Parameter d set extra gap between cells.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 898 def column_plot end |
#combine(g) ⇒ Integer
Parallelization. Combine drawing from instance g with gr (or with this) taking into account Z-ordering of pixels. The width and height of both instances must be the same.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1559 def combine end |
#cone(p1, p2, r1, r2 = -1, stl = "B") ⇒ nil
Primitives. Draw tube (or truncated cone if edge=false) between points p1, p2 with radius at the edges r1, r2. If r2<0 then it is supposed that r2=r1. The cone color is defined by string stl. Parameter stl can contain:
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1790 def cone end |
#cones(y, pen = "", opt = "") ⇒ nil #cones(x, y, pen = "", opt = "") ⇒ nil #cones(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw cones from points to axis plane. If string contain symbol ‘a’ then cones are drawn one above another (like summation). You can give different colors for positive and negative values if number of specified colors is equal to 2*number of curves. Parameter pen can contain: See also bars, cone, barwidth. Cones sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2394 def cones end |
#cont(z, sch = "", opt = "") ⇒ nil #cont(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 7).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2881 def cont end |
#cont3(a, sch = "", sval = -1, opt = "", opt = "") ⇒ nil #cont3(x, y, z, a, sch = "", sval = -1, opt = "") ⇒ nil
3D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 7).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3204 def cont3 end |
#cont_d(z, sch = "", opt = "") ⇒ nil #cont_d(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 7).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2965 def cont_d end |
#cont_f(z, sch = "", opt = "") ⇒ nil #cont_f(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 7).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2923 def cont_f end |
#cont_fx(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. The same as previous with manual contour levels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3972 def cont_fx end |
#cont_fy(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. The same as previous with manual contour levels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3985 def cont_fy end |
#cont_fz(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. The same as previous with manual contour levels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3998 def cont_fz end |
#cont_v(z, sch = "", opt = "") ⇒ nil #cont_v(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 7).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3007 def cont_v end |
#cont_x(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. The same as previous with manual contour levels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3891 def cont_x end |
#cont_y(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. The same as previous with manual contour levels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3904 def cont_y end |
#cont_z(v, a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. The same as previous with manual contour levels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3917 def cont_z end |
#contf3(a, sch = "", sval = -1, opt = "", opt = "") ⇒ nil #contf3(x, y, z, a, sch = "", sval = -1, opt = "") ⇒ nil
3D plotting. The same as previous with vector v of num-th elements equidistantly distributed in color range. Here num is equal to parameter value in options opt (default is 7).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3253 def contf3 end |
#copy_font(from) ⇒ nil
Font settings. Copy font data from another mglGraph object.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 341 def copy_font end |
#crust(x, y, z, sch = "", opt = "") ⇒ nil
Other plotting. The function reconstruct and draws the surface for arbitrary placed points (x(i), y(i), z(i)). String sch sets the color scheme. If string contain ‘#’ then wire plot is produced. Arrays x, y, z must have equal sizes. See also dots, triplot. @c Crust sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4257 def crust end |
#curve(p1, d1, p2, d2, stl = "B", num = 100) ⇒ nil
Primitives. Draws Bezier-like curve from point p1 to p2 using line style stl. At this tangent is codirected with d1, d2 and proportional to its amplitude. Parameter num define the “quality” of the curve. If num=2 then the straight line will be drawn in all coordinate system (independently on transformation formulas, see Curved coordinates). Contrary, for large values (for example, =100) the spline like Bezier curve will be drawn in corresponding coordinate system. Curve will be drawn even if it lies out of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1684 def curve end |
#cut_off(cond) ⇒ nil
Cutting. Sets the cutting off condition by formula cond. This condition determine will point be plotted or not. If value of formula is nonzero then point is omitted, otherwise it plotted. Set argument as “” to disable cutting off condition.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 246 def cut_off end |
#data_grid(u, x, y, z, opt = "") ⇒ nil
Data manipulation. Fills the value of array ‘u’ according to the linear interpolation of triangulated surface, found for arbitrary placed points ‘x’, ‘y’, ‘z’. Interpolation is done at points equidistantly distributed in axis range. NAN value is used for grid points placed outside of triangulated surface. Making regular data
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4565 def data_grid end |
#default_plot_param ⇒ nil
Graphics setup. Restore initial values for all of parameters and clear the image.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 40 def default_plot_param end |
#del_frame(i) ⇒ nil
Frames/Animation. Deletes drawing data for frame i and shift all later frame indexes. Function work if MGL_VECT_FRAME is set on (by default). Do nothing in OpenGL mode.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1366 def del_frame end |
#dens(z, sch = "", opt = "", zval = NAN) ⇒ nil #dens(x, y, z, sch = "", opt = "", zval = NAN) ⇒ nil
2D plotting. The function draws density plot for surface specified parametrically (x(i,j), y(i,j), z(i,j)) at z equal to minimal z-axis value. If string sch have symbol ‘#’ then grid lines are drawn. If string sch have symbol ‘.’ then plot by dots is produced. See also surf, cont, contf, boxs, tile, dens(xyz). Dens sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2859 def dens end |
#dens3(a, sch = "", sval = -1, opt = "") ⇒ nil #dens3(x, y, z, a, sch = "", sval = -1, opt = "") ⇒ nil
3D plotting. The function draws density plot for 3d data specified parametrically a(i,j,k)(x(i,j,k), y(i,j,k), z(i,j,k)). Density is plotted at slice sVal in direction (‘x’, ‘y’, ‘z’) if sch contain corresponding symbol (by default, ‘y’ direction is used). If string stl have symbol ‘#’ then grid lines are drawn. See also cont3, contf3, dens, grid3. Dens3 sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3179 def dens3 end |
#dens_x(a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. These plotting functions draw density plot in x, y, or z plain. If a is a tensor (3-dimensional data) then interpolation to a given sVal is performed. These functions are useful for creating projections of the 3D data array to the bounding box. See also ContXYZ, ContFXYZ, dens, Data manipulation. Dens projection sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3852 def dens_x end |
#dens_y(a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. These plotting functions draw density plot in x, y, or z plain. If a is a tensor (3-dimensional data) then interpolation to a given sVal is performed. These functions are useful for creating projections of the 3D data array to the bounding box. See also ContXYZ, ContFXYZ, dens, Data manipulation. Dens projection sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3865 def dens_y end |
#dens_z(a, stl = "", sval = NAN, opt = "") ⇒ nil
Other plotting. These plotting functions draw density plot in x, y, or z plain. If a is a tensor (3-dimensional data) then interpolation to a given sVal is performed. These functions are useful for creating projections of the 3D data array to the bounding box. See also ContXYZ, ContFXYZ, dens, Data manipulation. Dens projection sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3878 def dens_z end |
#dew(ax, ay, sch = "", opt = "") ⇒ nil #dew(x, y, ax, ay, sch = "", opt = "") ⇒ nil
Vector fields. The function draws dew-drops for plane vector field (ax, ay) depending parametrically on coordinates x, y at level z equal to minimal z-axis value. Note that this is very expensive plot in memory usage and creation time! The color of drops is proportional to sqrt(ax^2+ay^2). The number of drops depend on meshnum. See also vect. Dew sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3660 def dew end |
#dots(x, y, z, sch = "", opt = "") ⇒ nil #dots(x, y, z, a, sch = "", opt = "") ⇒ nil #dots(x, y, z, c, a, sch = "", opt = "") ⇒ nil
Other plotting. The function draws the arbitrary placed points (x(i), y(i), z(i)). String sch sets the color scheme and kind of marks. If arrays c, a are specified then they define colors and transparencies of dots. You can use tens plot with style ‘ .’ to draw non-transparent dots with specified colors. Arrays x, y, z, a must have equal sizes. See also crust, tens, mark, plot. Dots sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4243 def dots end |
#drop(p, d, r, col = "r", shift = 1, ap = 1) ⇒ nil
Primitives. Draw the drop with radius r at point p elongated in direction d and with color col. Parameter shift set the degree of drop oblongness: ‘0’ is sphere, ‘1’ is maximally oblongness drop. Parameter ap set relative width of the drop (this is analogue of “ellipticity” for the sphere).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1776 def drop end |
#ellipse(p1, p2, r, col = "r") ⇒ nil
Primitives. Draw the ellipse with radius r and focal points p1, p2. Parameter col may contain
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1815 def ellipse end |
#end_frame ⇒ nil
Frames/Animation. Finishes the frame drawing.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1317 def end_frame end |
#end_group ⇒ nil
Export picture. Ends group definition.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1086 def end_group end |
#error(y, ey, pen = "", opt = "") ⇒ nil #error(x, y, ey, pen = "", opt = "") ⇒ nil #error(x, y, ex, ey, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw error boxes (ex(i), ey(i)) at points (x(i), y(i)). This can be useful, for example, in experimental points, or to show numeric error or some estimations and so on. If string pen contain symbol ‘@’ than large semitransparent mark is used instead of error box. See also plot, mark. Error sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1656 def error end |
#export_mgld(fname, descr = "") ⇒ nil
Export to file. Exports points and primitives in file using MGLD format. Later this file can be used for faster loading and viewing by mglview utility. Parameter fname specifies the file name, descr adds description to file (default is file name).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1288 def export_mgld end |
#face(p1, p2, p3, p4, stl = "w") ⇒ nil
Primitives. Draws the solid quadrangle (face) with vertexes p1, p2, p3, p4 and with color(s) stl. At this colors can be the same for all vertexes or different if all 4 colors are specified for each vertex. Face will be drawn even if it lies out of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1698 def face end |
#face_x(x0, y0, z0, wy, wz, stl = "w", d1 = 0, d2 = 0) ⇒ nil
Primitives. Draws the solid rectangle (face) perpendicular to (x,y,z)-axis correspondingly at position (x0, y0, z0) with color stl and with widths wx, wy, wz along corresponding directions. At this colors can be the same for all vertexes or separately if all 4 colors are specified for each vertex. Parameters d1!=0, d2!=0 set additional shift of the last vertex (i.e. to draw quadrangle). Face will be drawn even if it lies out of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1715 def face_x end |
#face_y(x0, y0, z0, wx, wz, stl = "w", d1 = 0, d2 = 0) ⇒ nil
Primitives. Draws the solid rectangle (face) perpendicular to (x,y,z)-axis correspondingly at position (x0, y0, z0) with color stl and with widths wx, wy, wz along corresponding directions. At this colors can be the same for all vertexes or separately if all 4 colors are specified for each vertex. Parameters d1!=0, d2!=0 set additional shift of the last vertex (i.e. to draw quadrangle). Face will be drawn even if it lies out of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1732 def face_y end |
#face_z(x0, y0, z0, wx, wy, stl = "w", d1 = 0, d2 = 0) ⇒ nil
Primitives. Draws the solid rectangle (face) perpendicular to (x,y,z)-axis correspondingly at position (x0, y0, z0) with color stl and with widths wx, wy, wz along corresponding directions. At this colors can be the same for all vertexes or separately if all 4 colors are specified for each vertex. Parameters d1!=0, d2!=0 set additional shift of the last vertex (i.e. to draw quadrangle). Face will be drawn even if it lies out of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1749 def face_z end |
#fall(z, sch = "", opt = "") ⇒ nil #fall(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws fall lines for surface specified parametrically (x(i,j), y(i,j), z(i,j)). This plot can be used for plotting several curves shifted in depth one from another. If sch contain ‘x’ then lines are drawn along x-direction else (by default) lines are drawn along y-direction. See also belt, mesh, tens, meshnum. Fall sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2777 def fall end |
#fill(u, eq, opt = "") ⇒ nil #fill(u, eq, v, opt = "") ⇒ nil #fill(u, eq, v, w, opt = "") ⇒ nil
Data manipulation. Fills the value of array ‘u’ according to the formula in string eq. Formula is an arbitrary expression depending on variables ‘x’, ‘y’, ‘z’, ‘u’, ‘v’, ‘w’. Coordinates ‘x’, ‘y’, ‘z’ are supposed to be normalized in axis range. Variable ‘u’ is the original value of the array. Variables ‘v’ and ‘w’ are values of arrays v, w which can be NULL (i.e. can be omitted).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4551 def fill end |
#fit(a, func, var, opt = "") ⇒ MglData #fit(a, func, var, ini, opt = "") ⇒ MglData #fit(x, a, func, var, opt = "") ⇒ MglData #fit(x, a, func, var, ini, opt = "") ⇒ MglData #fit(x, y, a, func, var, opt = "") ⇒ MglData #fit(x, y, a, func, var, ini, opt = "") ⇒ MglData #fit(x, y, z, a, func, var, opt = "") ⇒ MglData #fit(x, y, z, a, func, var, ini, opt = "") ⇒ MglData
Nonlinear fitting. Fit data along x-, y- and z-directions for array specified parametrically a(i,j,k)(x(i,j,k), y(i,j,k), z(i,j,k)) with weight factor 1.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4421 def fit end |
#fit2(a, func, var, opt = "") ⇒ MglData #fit2(fit, a, func, var, ini, opt = "") ⇒ MglData
Nonlinear fitting. Fit data along all directions for 2d or 3d arrays a with s=1 and x, y, z equidistantly distributed in axis range.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4443 def fit2 end |
#fit3(fit, a, func, var, opt = "") ⇒ MglData #fit3(fit, a, func, var, ini, opt = "") ⇒ MglData
Nonlinear fitting. Fit data along all directions for 2d or 3d arrays a with s=1 and x, y, z equidistantly distributed in axis range.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4466 def fit3 end |
#fit_s(a, s, func, var, opt = "") ⇒ MglData #fit_s(a, s, func, var, ini, opt = "") ⇒ MglData #fit_s(x, a, s, func, var, opt = "") ⇒ MglData #fit_s(x, a, s, func, var, ini, opt = "") ⇒ MglData #fit_s(x, y, a, s, func, var, opt = "") ⇒ MglData #fit_s(x, y, a, s, func, var, ini, opt = "") ⇒ MglData #fit_s(x, y, z, a, s, func, var, opt = "") ⇒ MglData #fit_s(x, y, z, a, s, func, var, ini, opt = "") ⇒ MglData
Nonlinear fitting. Fit data along x-, y- and z-directions for array specified parametrically a(i,j,k)(x(i,j,k), y(i,j,k), z(i,j,k)) with weight factor s(i,j,k).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4343 def fit_s end |
#flow(ax, ay, az, sch = "", opt = "") ⇒ nil #flow(x, y, z, ax, ay, az, sch = "", opt = "") ⇒ nil
Vector fields. This is 3D version of the first functions. Here arrays ax, ay, az must be 3-ranged tensors with equal sizes and the color of line is proportional to sqrt(ax^2+ay^2+az^2).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3683 def flow end |
#flow_p(p0, ax, ay, az, sch = "", opt = "") ⇒ nil #flow_p(p0, x, y, z, ax, ay, az, sch = "", opt = "") ⇒ nil
Vector fields. This is 3D version of the previous functions.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3732 def flow_p end |
#fog(d, dz = 0.25) ⇒ nil
Fog. Function imitate a fog in the plot. Fog start from relative distance dz from view point and its density growths exponentially in depth. So that the fog influence is determined by law ~ 1-exp(-d*z). Here z is normalized to 1 depth of the plot. If value d=0 then the fog is absent. Note, that fog was applied at stage of image creation, not at stage of drawing. Adding fog
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 146 def fog end |
#fplot(eqx, eqy, eqz, pen, opt = "") ⇒ nil
Other plotting. Draws command parametrical curve (‘x(t)’, ‘y(t)’, ‘z(t)’) where ‘t’ variable is changed in range (0, 1). You do not need to create the data arrays to plot it. Option value set number of points. See also plot.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4052 def fplot end |
#fsurf(eqx, eqy, eqz, sch = "", opt = "") ⇒ nil
Other plotting. Draws command parametrical surface (‘x(u,v)’, ‘y(u,v)’, ‘z(u,v)’) where ‘u’, ‘v’ variable are changed in range (0, 1). You do not need to create the data arrays to plot it. Option value set number of points. See also surf.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4078 def fsurf end |
#get_bgrn(buf, size) ⇒ nil
Bitmap in memory. Gets RGB bitmap of the current state of the image. Format of each element of bits is: (red, green, blue). Number of elements is Width*Height. Position of element (i,j) is (3*i + 3*Width*j) (or is (4*i + 4*Width*j) for GetBGRN()). You have to provide the proper size of the buffer, buf, i.e. the code for Python should look like
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1430 def get_bgrn end |
#get_fit ⇒ String
Nonlinear fitting. Get last fitted formula with found coefficients (as numbers).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4488 def get_fit end |
#get_fit_chi ⇒ Float
Nonlinear fitting. Get chi for last fitted formula.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4497 def get_fit_chi end |
#get_frame(i) ⇒ nil
Frames/Animation. Replaces drawing data by one from frame i. Function work if MGL_VECT_FRAME is set on (by default).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1346 def get_frame end |
#get_height ⇒ Integer
Bitmap in memory. Gets width and height of the image.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1462 def get_height end |
#get_num_frame ⇒ Integer
Frames/Animation. Gets the number of created frames.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1326 def get_num_frame end |
#get_obj_id(xs, ys) ⇒ Integer
Bitmap in memory. Get the numeric id for most upper object at pixel (xs, ys) of the picture.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1504 def get_obj_id end |
#get_plot_id ⇒ String
Default sizes. Gets default name id as filename for saving (in FLTK window for example).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 215 def get_plot_id end |
#get_quality ⇒ Integer
Export picture. Gets quality of the plot: MGL_DRAW_WIRE=0 – no face drawing (fastest), MGL_DRAW_FAST=1 – no color interpolation (fast), MGL_DRAW_NORM=2 – high quality (normal), MGL_DRAW_HIGH=3 – high quality with 3d primitives (arrows and marks); MGL_DRAW_LMEM=0x4 – direct bitmap drawing (low memory usage); MGL_DRAW_DOTS=0x8 – for dots drawing instead of primitives (extremely fast).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1067 def get_quality end |
#get_rgb ⇒ unsigned char #get_rgb(buf, size) ⇒ nil
Bitmap in memory. Gets RGB bitmap of the current state of the image. Format of each element of bits is: (red, green, blue). Number of elements is Width*Height. Position of element (i,j) is (3*i + 3*Width*j) (or is (4*i + 4*Width*j) for GetBGRN()). You have to provide the proper size of the buffer, buf, i.e. the code for Python should look like
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1419 def get_rgb end |
#get_rgba ⇒ unsigned char #get_rgba(buf, size) ⇒ nil
Bitmap in memory. Gets RGBA bitmap of the current state of the image. Format of each element of bits is: (red, green, blue, alpha). Number of elements is Width*Height. Position of element (i,j) is (4*i + 4*Width*j).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1444 def get_rgba end |
#get_spl_id(xs, ys) ⇒ Integer
Bitmap in memory. Get the numeric id for most subplot/inplot at pixel (xs, ys) of the picture.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1515 def get_spl_id end |
#get_warn ⇒ Integer
Error handling. Return the numerical ID of warning about the not drawn plot. Possible values are:
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 449 def get_warn end |
#get_width ⇒ Integer
Bitmap in memory. Gets width and height of the image.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1453 def get_width end |
#global_warn ⇒ String
Error handling. Get warning message(s) for global scope.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 478 def global_warn end |
#grad(phi, sch = "", opt = "") ⇒ nil #grad(x, y, phi, sch = "", opt = "") ⇒ nil #grad(x, y, z, phi, sch = "", opt = "") ⇒ nil
Vector fields. The function draws gradient lines for scalar field phi(i,j) (or phi(i,j,k) in 3d case) specified parametrically (x(i,j,k), y(i,j,k), z(i,j,k)). Number of lines is proportional to value option (default is 5). See also dens, cont, flow.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3788 def grad end |
#grid(z, sch = "", opt = "") ⇒ nil #grid(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws grid lines for density plot of surface specified parametrically (x(i,j), y(i,j), z(i,j)) at z equal to minimal z-axis value. See also dens, cont, contf, grid3, meshnum.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2023 def grid end |
#grid3(a, sch = "", sval = -1, opt = "") ⇒ nil #grid3(x, y, z, a, sch = "", sval = -1, opt = "") ⇒ nil
3D plotting. The function draws grid for 3d data specified parametrically a(i,j,k)(x(i,j,k), y(i,j,k), z(i,j,k)). Grid is plotted at slice sVal in direction (‘x’, ‘y’, ‘z’) if sch contain corresponding symbol (by default, ‘y’ direction is used). See also cont3, contf3, dens3, grid2, meshnum.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3300 def grid3 end |
#grid_plot(nx, ny, ind, d = 0) ⇒ nil
Subplots and rotation. Puts further plotting in ind-th cell of nx*ny grid. The position is relative to previous subplot (or inplot with rel=false). Parameter d set extra gap between cells.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 911 def grid_plot end |
#highlight(id) ⇒ nil
Bitmap in memory. Highlight the object with given id.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1525 def highlight end |
#hist(x, a, opt = "") ⇒ MglData #hist(x, y, a, opt = "") ⇒ MglData #hist(x, y, z, a, opt = "") ⇒ MglData
Data manipulation. These functions make distribution (histogram) of data. They do not draw the obtained data themselves. These functions can be useful if user have data defined for random points (for example, after PIC simulation) and he want to produce a plot which require regular data (defined on grid(s)). The range for grids is always selected as axis range. Arrays x, y, z define the positions (coordinates) of random points. Array a define the data value. Number of points in output array res is defined by option value (default is mglFitPnts=100).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4524 def hist end |
#import_mgld(fname, add = false) ⇒ nil
Export to file. Imports points and primitives in file using MGLD format. Later this file can be used for faster loading and viewing by mglview utility. Parameter fname specifies the file name, add sets to append or replace primitives to existed ones.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1299 def import_mgld end |
#in_plot(x1, x2, y1, y2, rel = true) ⇒ nil
Subplots and rotation. Puts further plotting in some region of the whole frame surface. This function allows one to create a plot in arbitrary place of the screen. The position is defined by rectangular coordinates (x1, x2)*(y1, y2). The coordinates x1, x2, y1, y2 are normalized to interval (0, 1). If parameter rel=true then the relative position to current subplot (or inplot with rel=false) is used. This function set off any aspects or rotations. So it should be used first for creating subplot.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 886 def in_plot end |
#is_active(xs, ys, d = 1) ⇒ long
Bitmap in memory. Checks if point (xs, ys) is close to one of active point (i.e. mglBase::Act) with accuracy d and return its index or -1 if not found. Active points are special points which characterize primitives (like edges and so on). This function for advanced users only.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1537 def is_active end |
#label(y, txt, fnt = "", opt = "") ⇒ nil #label(x, y, txt, fnt = "", opt = "") ⇒ nil #label(x, y, z, txt, fnt = "", opt = "") ⇒ nil
1D plotting. These functions draw string txt at points (x(i), y(i), z(i)). If string txt contain ‘%x’, ‘%y’, ‘%z’ or ‘%n’ then it will be replaced by the value of x-,y-,z-coordinate of the point or its index. String fnt may contain: See also plot, mark, textmark, table. Label sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2047 def label end |
#legend(x, y, fnt = "#", opt = "") ⇒ nil
Legend. Draws legend of accumulated legend entries by font fnt with size. Position of legend is determined by parameter x, y which supposed to be normalized to interval (0,1). Option value set the space between line samples and text (default is 0.1).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2059 def legend end |
#light(n, enable) ⇒ nil
Lighting. Switch on/off n-th light source separately.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 81 def light end |
#line(p1, p2, stl = "B", num = 2) ⇒ nil
Primitives. Draws a geodesic line (straight line in Cartesian coordinates) from point p1 to p2 using line style stl. Parameter num define the “quality” of the line. If num=2 then the stright line will be drawn in all coordinate system (independently on transformation formulas (see Curved coordinates). Contrary, for large values (for example, =100) the geodesic line will be drawn in corresponding coordinate system (straight line in Cartesian coordinates, circle in polar coordinates and so on). Line will be drawn even if it lies out of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1669 def line end |
#load_background(fname, alpha = 1) ⇒ nil
Background. Load PNG or JPEG file fname as background for the plot. Parameter alpha manually set transparency of the background.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1622 def load_background end |
#load_font(name, path = "") ⇒ nil
Font settings. Load font typeface from path/name.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 267 def load_font end |
#logo(fname, smooth = false, opt = "") ⇒ nil #logo(w, h, rgba, smooth = false, opt = "") ⇒ nil
Primitives. Draw bitmap (logo) along whole axis range, which can be changed by Command options. Bitmap can be loaded from file or specified as RGBA values for pixels. Parameter smooth set to draw bitmap without or with color interpolation.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1882 def logo end |
#map(ax, ay, sch = "", opt = "") ⇒ nil #map(x, y, ax, ay, sch = "", opt = "") ⇒ nil
Dual plotting. The function draws mapping plot for matrices (ax, ay ) which parametrically depend on coordinates x, y. The initial position of the cell (point) is marked by color. Height is proportional to Jacobian(ax,ay). This plot is like Arnold diagram ??? If string sch contain symbol ‘.’ then the color ball at matrix knots are drawn otherwise face is drawn. Mapping visualization
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3512 def map end |
#mark(y, r, pen = "", opt = "") ⇒ nil #mark(x, y, r, pen = "", opt = "") ⇒ nil #mark(x, y, z, r, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw marks with size r(i)*marksize at points (x(i), y(i), z(i)). If you need to draw markers of the same size then you can use plot function with empty line style ‘ ’. For markers with size in axis range use error with style ‘@’. See also plot, textmark, error, stem. Mark sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1644 def mark end |
#mesh(z, sch = "", opt = "") ⇒ nil #mesh(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws mesh lines for surface specified parametrically (x(i,j), y(i,j), z(i,j)). See also surf, fall, meshnum, cont, tens. Mesh sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2757 def mesh end |
#message ⇒ String
Error handling. Return messages about matters why some plot are not drawn. If returned string is empty then there are no messages.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 440 def end |
#mpi_recv(id) ⇒ Integer
Parallelization. Receive graphical information from node id using MPI. The width and height in both nodes must be the same.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1579 def mpi_recv end |
#mpi_send(id) ⇒ Integer
Parallelization. Send graphical information from node id using MPI. The width and height in both nodes must be the same.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1569 def mpi_send end |
#multi_plot(nx, ny, m, dx, dy, stl = "<>_^") ⇒ nil
Subplots and rotation. Puts further plotting in a rectangle of dx*dy cells starting from m-th cell of nx*ny grid of the whole frame area. This function set off any aspects or rotations. So it should be used first for creating subplot. Extra space will be reserved for axis/colorbar if stl contain:
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 872 def multi_plot end |
#need_stop ⇒ bool
Stop drawing. Return true if drawing should be terminated. Also it process all events in GUI. User should call this function from time to time inside a long calculation to allow processing events for GUI.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 497 def need_stop end |
#new_frame ⇒ nil
Frames/Animation. Creates new frame. Function returns current frame id. This is not thread safe function in OpenGL mode! Use direct list creation in multi-threading drawing. The function EndFrame() must be call after the finishing of the frame drawing for each call of this function.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1308 def new_frame end |
#ohlc(o, h, l, c, pen = "", opt = "") ⇒ nil #ohlc(x, o, h, l, c, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw Open-High-Low-Close diagram. This diagram show vertical line for between maximal(high h) and minimal(low l) values, as well as horizontal lines before/after vertical line for initial(open o)/final(close c) values of some process (usually price). You can give different colors for up and down values (when closing values higher or not as in previous point) if number of specified colors is equal to 2*number of curves. See also candle, plot, barwidth. OHLC sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2496 def ohlc end |
#pde(ham, ini_re, ini_im, dz = 0.1, k0 = 100, opt = "") ⇒ MglData
Data manipulation. Solves equation du/dz = i*k0*ham(p,q,x,y,z,|u|)(u), where p=-i/k0*d/dx, q=-i/k0*d/dy are pseudo-differential operators. Parameters ini_re, ini_im specify real and imaginary part of initial field distribution. Coordinates ‘x’, ‘y’, ‘z’ are supposed to be normalized in axis range. Note, that really this ranges are increased by factor 3/2 for purpose of reducing reflection from boundaries. Parameter dz set the step along evolutionary coordinate z. At this moment, simplified form of function ham is supported – all “mixed” terms (like ‘x*p’->x*d/dx) are excluded. For example, in 2D case this function is effectively ham = f(p,z) + g(x,z,u). However commutable combinations (like ‘x*q’->x*d/dy) are allowed. Here variable ‘u’ is used for field amplitude |u|. This allow one solve nonlinear problems – for example, for nonlinear Shrodinger equation you may set ham=“p^2 + q^2 - u^2”. You may specify imaginary part for wave absorption, like ham = “p^2 + i*x*(x>0)”, but only if dependence on variable ‘i’ is linear (i.e. ham = hre+i*him). PDE solving hints
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4580 def pde end |
#perspective(a) ⇒ nil
Subplots and rotation. Add (switch on) the perspective to plot. The parameter a = Depth/(Depth+dz) in (0,1). By default (a=0) the perspective is off.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1012 def perspective end |
#pipe(ax, ay, az, sch = "", r0 = 0.05, opt = "") ⇒ nil #pipe(x, y, z, ax, ay, az, sch = "", r0 = 0.05, opt = "") ⇒ nil
Vector fields. This is 3D version of the first functions. Here arrays ax, ay, az must be 3-ranged tensors with equal sizes and the color of line is proportional to sqrt(ax^2+ay^2+az^2).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3812 def pipe end |
#plot(y, pen = "", opt = "") ⇒ nil #plot(x, y, pen = "", opt = "") ⇒ nil #plot(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw continuous lines between points (x(i), y(i), z(i)). See also area, step, stem, tube, mark, error, belt, tens, tape. Plot sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2129 def plot end |
#polygon(p0, p1, num, col = "r") ⇒ nil
Primitives. Draw the polygon with num edges starting from p1. The center of polygon is located in p0. Parameter col may contain
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1862 def polygon end |
#pop ⇒ nil
Subplots and rotation. Pop (restore last ‘pushed’) transformation matrix into stack.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 992 def pop end |
#push ⇒ nil
Subplots and rotation. Push transformation matrix into stack. Later you can restore its current state by Pop() function.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 983 def push end |
#puts(p, d, text, fnt = ":L", size = -1) ⇒ nil
Text printing. The function plots the string text at position p along direction d with specified size. Parameter fnt set text style and text position: under (‘T’) or above (‘t’) the line.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1903 def puts end |
#puts_fit(p, prefix = "", font = "", size = -1) ⇒ nil
Nonlinear fitting. Print last fitted formula with found coefficients (as numbers) at position p0. The string prefix will be printed before formula. All other parameters are the same as in Text printing.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4479 def puts_fit end |
#quad_plot(id, x, y, sch = "", opt = "") ⇒ nil #quad_plot(id, x, y, z, c, sch = "", opt = "") ⇒ nil #quad_plot(id, x, y, z, sch = "", opt = "") ⇒ nil
Other plotting. The function draws the surface of quadrangles. Quadrangles vertexes are set by indexes id of data points (x(i), y(i), z(i)). String sch sets the color scheme. If string contain ‘#’ then wire plot is produced. First dimensions of id must be 4 or greater. Arrays x, y, z must have equal sizes. Parameter c set the colors of quadrangles (if id.ny=c.nx) or colors of vertexes (if x.nx=c.nx). See also triplot. TriPlot and QuadPlot
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4210 def quad_plot end |
#radar(a, pen = "", opt = "") ⇒ nil
1D plotting. This functions draws radar chart which is continuous lines between points located on an radial lines (like plot in Polar coordinates). Option value set the additional shift of data (i.e. the data a+value is used instead of a). If value<0 then r=max(0, -min(value). If pen containt ‘#’ symbol then “grid” (radial lines and circle for r) is drawn. See also plot. Radar sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2141 def radar end |
#rasterize ⇒ nil
Background. Force drawing the plot and use it as background. After it, function clear the list of primitives, like clf. This function is useful if you want save part of plot as bitmap one (for example, large surfaces, isosurfaces or vector fields) and keep some parts as vector one (like annotation, curves, axis and so on).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1611 def rasterize end |
#region(y1, y2, pen = "", opt = "") ⇒ nil #region(x, y1, y2, pen = "", opt = "") ⇒ nil #region(x1, y1, x2, y2, pen = "", opt = "") ⇒ nil #region(x1, y1, z1, x2, y2, z2, pen = "", opt = "") ⇒ nil
1D plotting. These functions fill area between 2 curves. Dimensions of arrays y1 and y2 must be equal. Also you can use gradient filling if number of specified colors is equal to 2*number of curves. If for 2D version pen contain symbol ‘i’ then only area with y1<y<y2 will be filled else the area with y2<y<y1 will be filled too. See also area, bars, stem. Region sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2293 def region end |
#reset_frames ⇒ nil
Frames/Animation. Reset frames counter (start it from zero).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1375 def reset_frames end |
#restore_font ⇒ nil
Font settings. Restore font data to default typeface.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 350 def restore_font end |
#rhomb(p1, p2, r, col = "r") ⇒ nil
Primitives. Draw the rhombus with width r and edge points p1, p2. Parameter col may contain
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1828 def rhomb end |
#rotate(tetx, tetz, tety = 0) ⇒ nil
Subplots and rotation. Rotates a further plotting relative to each axis (x, z, y) consecutively on angles TetX, TetZ, TetY.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 949 def rotate end |
#rotate_n(tet, x, y, z) ⇒ nil
Subplots and rotation. Rotates a further plotting around vector (x, y, z) on angle Tet.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 962 def rotate_n end |
#set_alpha_def(val) ⇒ nil
Transparency. Sets default value of alpha channel (transparency) for all plotting functions. Initial value is 0.5.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 60 def set_alpha_def end |
#set_ambient(bright = 0.5) ⇒ nil
Lighting. Sets the brightness of ambient light. The value should be in range (0,1).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 135 def set_ambient end |
#set_arrow_size(val) ⇒ nil
Default sizes. Sets size of arrows for 1D plotting, lines and curves (see Primitives). Default value is 1.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 176 def set_arrow_size end |
#set_auto_ranges(p1, p2) ⇒ nil #set_auto_ranges(x1, x2, y1, y2, z1 = 0, z2 = 0, c1 = 0, c2 = 0) ⇒ nil
Ranges (bounding box). Sets the ranges for automatic coordinates. If minimal and maximal values of the coordinate are the same then they are ignored.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 610 def set_auto_ranges end |
#set_axis_stl(stl = "k", tck = 0, sub = 0) ⇒ nil
Ticks. The line style of axis (stl), ticks (tck) and subticks (sub). If stl is empty then default style is used (‘k’ or ‘w’ depending on transparency type). If tck or sub is empty then axis style is used (i.e. stl).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 841 def set_axis_stl end |
#set_bar_width(val) ⇒ nil
Default sizes. Sets relative width of rectangles in bars, barh, boxplot, candle, ohlc. Default value is 0.7.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 156 def end |
#set_color(id, r, g, b) ⇒ nil
Palette and colors. Sets RGB values for color with given id. This is global setting which influence on any later usage of symbol id.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 394 def set_color end |
#set_coor(how) ⇒ nil
Curved coordinates. Sets one of the predefined transformation formulas for curvilinear coordinate. Parameter how define the coordinates: mglCartesian=0 – Cartesian coordinates (no transformation); mglPolar=1 – Polar coordinates x_n=x*cos(y),y_n=x*sin(y), z_n=z; mglSpherical=2 – Sperical coordinates x_n=x*sin(y)*cos(z), y_n=x*sin(y)*sin(z), z_n=x*cos(y); mglParabolic=3 – Parabolic coordinates x_n=x*y, y_n=(x*x-y*y)/2, z_n=z; mglParaboloidal=4 – Paraboloidal coordinates x_n=(x*x-y*y)*cos(z)/2, y_n=(x*x-y*y)*sin(z)/2, z_n=x*y; mglOblate=5 – Oblate coordinates x_n=cosh(x)*cos(y)*cos(z), y_n=cosh(x)*cos(y)*sin(z), z_n=sinh(x)*sin(y); mglProlate=6 – Prolate coordinates x_n=sinh(x)*sin(y)*cos(z), y_n=sinh(x)*sin(y)*sin(z), z_n=cosh(x)*cos(y); mglElliptic=7 – Elliptic coordinates x_n=cosh(x)*cos(y), y_n=sinh(x)*sin(y), z_n=z; mglToroidal=8 – Toroidal coordinates x_n=sinh(x)*cos(z)/(cosh(x)-cos(y)), y_n=sinh(x)*sin(z)/(cosh(x)-cos(y)), z_n=sin(y)/(cosh(x)-cos(y)); mglBispherical=9 – Bispherical coordinates x_n=sin(y)*cos(z)/(cosh(x)-cos(y)), y_n=sin(y)*sin(z)/(cosh(x)-cos(y)), z_n=sinh(x)/(cosh(x)-cos(y)); mglBipolar=10 – Bipolar coordinates x_n=sinh(x)/(cosh(x)-cos(y)), y_n=sin(y)/(cosh(x)-cos(y)), z_n=z; mglLogLog=11 – log-log coordinates x_n=lg(x), y_n=lg(y), z_n=lg(z); mglLogX=12 – log-x coordinates x_n=lg(x), y_n=y, z_n=z; mglLogY=13 – log-y coordinates x_n=x, y_n=lg(y), z_n=z.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 660 def set_coor end |
#set_cut(val) ⇒ nil
Cutting. Flag which determines how points outside bounding box are drawn. If it is true then points are excluded from plot (it is default) otherwise the points are projected to edges of bounding box.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 225 def set_cut end |
#set_cut_box(p1, p1) ⇒ nil
Cutting. Lower and upper edge of the box in which never points are drawn. If both edges are the same (the variables are equal) then the cutting box is empty.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 236 def set_cut_box end |
#set_def_font(name, path = "") ⇒ nil
Font settings. Load default font typeface (for all newly created HMGL/mglGraph objects) from path/name.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 361 def set_def_font end |
#set_def_scheme(sch) ⇒ nil
Palette and colors. Sets the sch as default color scheme. Default value is “BbcyrR”.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 381 def set_def_scheme end |
#set_diffuse(bright) ⇒ nil
Lighting. Set brightness of diffusive light (only for local light sources).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 125 def set_diffuse end |
#set_draw_reg(nx = 1, ny = 1, m = 0) ⇒ long
Bitmap in memory. Limits drawing region by rectangular area of m-th cell of matrix with sizes nx*ny (like in subplot). This function can be used to update only small region of the image for purposes of higher speed. This function for advanced users only.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1549 def set_draw_reg end |
#set_event_func(func, par = NULL) ⇒ bool
Stop drawing. Set callback function which will be called to process events of GUI library.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 508 def set_event_func end |
#set_face_num(val) ⇒ nil
Default sizes. Sets approximate number of visible faces. Can be used for speeding up drawing by cost of lower quality. By default (=0) it draws all of them.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 196 def set_face_num end |
#set_font_def(fnt) ⇒ nil
Font settings. Sets the font specification (see Text printing). Default is ‘rC’ – Roman font centering.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 277 def set_font_def end |
#set_font_size(val) ⇒ nil
Font settings. Sets the size of font for tick and axis labels. Default font size of axis labels is 1.4 times large than for tick labels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 287 def set_font_size end |
#set_font_size_cm(cm, dpi = 72) ⇒ nil
Font settings. Set FontSize by size in centimeters and picture DPI (default is 0.56 cm = 16 pt).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 309 def set_font_size_cm end |
#set_font_size_in(cm, dpi = 72) ⇒ nil
Font settings. Set FontSize by size in inch and picture DPI (default is 0.22 in = 16 pt).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 320 def set_font_size_in end |
#set_font_size_pt(cm, dpi = 72) ⇒ nil
Font settings. Set FontSize by size in pt and picture DPI (default is 16 pt for dpi=72).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 298 def set_font_size_pt end |
#set_frame(i) ⇒ nil
Frames/Animation. Finishes the frame drawing and sets drawing data to frame i, which should be in range (0, GetNumFrame()-1). This function is similar to EndFrame() but don’t add frame to the GIF image.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1336 def set_frame end |
#set_func(eqx, eqy, eqz = "", eqa = "") ⇒ nil
Curved coordinates. Sets transformation formulas for curvilinear coordinate. Each string should contain mathematical expression for real coordinate depending on internal coordinates ‘x’, ‘y’, ‘z’ and ‘a’ or ‘c’ for colorbar. For example, the cylindrical coordinates are introduced as SetFunc(“x*cos(y)”, “x*sin(y)”, “z”);. For removing of formulas the corresponding parameter should be empty or NULL. Using transformation formulas will slightly slowing the program. Parameter EqA set the similar transformation formula for color scheme. Textual formulas.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 650 def set_func end |
#set_global_warn(info) ⇒ nil
Error handling. Set warning message info for global scope.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 469 def set_global_warn end |
#set_legend_marks(num) ⇒ nil
Legend. Set the number of marks in the legend. By default 1 mark is used.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2102 def set_legend_marks end |
#set_mark_size(val) ⇒ nil
Default sizes. Sets size of marks for 1D plotting. Default value is 1.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 166 def set_mark_size end |
#set_mask(id, hex) ⇒ nil #set_mask(id, hex) ⇒ nil
Masks. Sets new bit matrix hex of size 8*8 for mask with given id. This is global setting which influence on any later usage of symbol id. The predefined masks are (see Color scheme): ‘-’ is 000000FF00000000, ‘+’ is 080808FF08080808, ‘=’ is 0000FF00FF000000, ‘;’ is 0000007700000000, ‘o’ is 0000182424180000, ‘O’ is 0000183C3C180000, ‘s’ is 00003C24243C0000, ‘S’ is 00003C3C3C3C0000, ‘~’ is 0000060990600000, ‘<’ is 0060584658600000, ‘>’ is 00061A621A060000, ‘j’ is 0000005F00000000, ‘d’ is 0008142214080000, ‘D’ is 00081C3E1C080000, ‘*’ is 8142241818244281, ‘^’ is 0000001824420000.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 410 def set_mask end |
#set_mask_angle(angle) ⇒ nil
Masks. Sets the default rotation angle (in degrees) for masks. Note, you can use symbols ‘', ’/‘, ’I’ in color scheme for setting rotation angles as 45, -45 and 90 degrees correspondingly.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 420 def set_mask_angle end |
#set_mesh_num(val) ⇒ nil
Default sizes. Sets approximate number of lines in mesh, fall, grid2 and also the number of hachures in vect, dew and the number of cells in cloud. By default (=0) it draws all lines/hachures/cells.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 186 def set_mesh_num end |
#set_obj_id(id) ⇒ nil
Bitmap in memory. Set the numeric id for object or subplot/inplot.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1493 def set_obj_id end |
#set_origin(p0) ⇒ nil #set_origin(x0, y0, z0 = NAN) ⇒ nil
Ranges (bounding box). Sets center of axis cross section. If one of values is NAN then MathGL try to select optimal axis position.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 626 def set_origin end |
#set_origin_tick(val = true) ⇒ nil
Ticks. Enable/disable drawing of ticks labels at axis origin. In C/Fortran you can use mgl_set_flag(gr,val, MGL_NO_ORIGIN);.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 818 def set_origin_tick end |
#set_palette(colors) ⇒ nil
Palette and colors. Sets the palette as selected colors. Default value is “Hbgrcmyhlnqeup” that corresponds to colors: dark gray ‘H’, blue ‘b’, green ‘g’, red ‘r’, cyan ‘c’, magenta ‘m’, yellow ‘y’, gray ‘h’, blue-green ‘l’, sky-blue ‘n’, orange ‘q’, yellow-green ‘e’, blue-violet ‘u’, purple ‘p’. The palette is used mostly in 1D plots (see 1D plotting) for curves which styles are not specified. Internal color counter will be nullified by any change of palette. This includes even hidden change (for example, by box or axis functions).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 371 def set_palette end |
#set_plot_factor(val) ⇒ nil
Subplots and rotation. Sets the factor of plot size. It is not recommended to set it lower then 1.5. This is some analogue of function Zoom() but applied not to overall image but for each InPlot. Use negative value or zero to enable automatic selection.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1002 def set_plot_factor end |
#set_plot_id(id) ⇒ nil
Default sizes. Sets default name id as filename for saving (in FLTK window for example).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 206 def set_plot_id end |
#set_quality(val = MGL_DRAW_NORM) ⇒ nil
Export picture. Sets quality of the plot depending on value val: MGL_DRAW_WIRE=0 – no face drawing (fastest), MGL_DRAW_FAST=1 – no color interpolation (fast), MGL_DRAW_NORM=2 – high quality (normal), MGL_DRAW_HIGH=3 – high quality with 3d primitives (arrows and marks); MGL_DRAW_LMEM=0x4 – direct bitmap drawing (low memory usage); MGL_DRAW_DOTS=0x8 – for dots drawing instead of primitives (extremely fast).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1058 def set_quality end |
#set_range(dir, dat, add = false) ⇒ nil
Ranges (bounding box). Sets the range for ‘x’-,‘y’-,‘z’- coordinate or coloring (‘c’) as minimal and maximal values of data dat. Parameter add=on shows that the new range will be joined to existed one (not replace it).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 520 def set_range end |
#set_ranges(xx, yy) ⇒ nil #set_ranges(xx, yy, zz) ⇒ nil #set_ranges(xx, yy, zz, cc) ⇒ nil
Ranges (bounding box). Sets the ranges of ‘x’-,‘y’-,‘z’-coordinates and coloring as minimal and maximal values of data xx, yy, zz, cc correspondingly.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 564 def set_ranges end |
#set_rotated_text(val) ⇒ nil
Font settings. Sets to use or not text rotation.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 256 def set_rotated_text end |
#set_size(width, height) ⇒ nil
Export picture. Sets size of picture in pixels. This function must be called before any other plotting because it completely remove picture contents.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1048 def set_size end |
#set_tick_len(val, stt = 1) ⇒ nil
Ticks. The relative length of axis ticks. Default value is 0.1. Parameter stt>0 set relative length of subticks which is in sqrt(1+stt) times smaller.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 829 def set_tick_len end |
#set_tick_rotate(val) ⇒ nil
Ticks. Enable/disable ticks rotation if there are too many ticks or ticks labels are too long.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 787 def set_tick_rotate end |
#set_tick_shift(d) ⇒ nil
Ticks. Set value of additional shift for ticks labels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 777 def set_tick_shift end |
#set_tick_skip(val) ⇒ nil
Ticks. Enable/disable ticks skipping if there are too many ticks or ticks labels are too long.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 797 def set_tick_skip end |
#set_tick_templ(dir, templ) ⇒ nil
Ticks. Set template templ for x-,y-,z-axis ticks or colorbar ticks. It may contain TeX symbols also. If templ=“” then default template is used (in simplest case it is ‘%.2g’). Setting on template switch off automatic ticks tuning.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 744 def set_tick_templ end |
#set_ticks(dir, d = 0, ns = 0, org = NAN, fact = "") ⇒ nil
Ticks. Set the ticks step d, number of sub-ticks ns (used for positive d) and initial ticks position org for the axis along direction dir (use ‘c’ for colorbar ticks). Variable d set step for axis ticks (if positive) or it’s number on the axis range (if negative). Zero value set automatic ticks. If org value is NAN then axis origin is used. Parameter fact set text which will be printed after tick label (like “pi” for d=M_PI).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 702 def set_ticks end |
#set_ticks_time(dir, val, templ) ⇒ nil
Ticks. Sets time labels with step val and template templ for x-,y-,z-axis ticks or colorbar ticks. It may contain TeX symbols also. The format of template templ is the same as described in www.manpagez.com/man/3/strftime/. Most common variants are ‘%X’ for national representation of time, ‘%x’ for national representation of date, ‘%Y’ for year with century. If val=0 and/or templ=“” then automatic tick step and/or template will be selected. You can use mgl_get_time() function for obtaining number of second for given date/time string. Note, that MS Visual Studio couldn’t handle date before 1970.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 756 def set_ticks_time end |
#set_ticks_val(dir, lbl, add = false) ⇒ nil #set_ticks_val(dir, val, lbl, add = false) ⇒ nil
Ticks. Set the manual positions val and its labels lbl for ticks along axis dir. If array val is absent then values equidistantly distributed in x-axis range are used. Labels are separated by ‘n’ symbol. Use SetTicks() to restore automatic ticks.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 721 def set_ticks_val end |
#set_time_utc(val) ⇒ nil
Ticks.
Enable/disable using UTC time for ticks labels. In C/Fortran you can use mgl_set_flag(gr,val, MGL_USE_GMTIME);.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 808 def set_time_utc end |
#set_transp_type(type) ⇒ nil
Transparency. Set the type of transparency. Possible values are: Types of transparency.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 71 def set_transp_type end |
#set_tune_ticks(tune, pos = 1.15) ⇒ nil
Ticks. Switch on/off ticks enhancing by factoring common multiplier (for small, like from 0.001 to 0.002, or large, like from 1000 to 2000, coordinate values – enabled if tune&1 is nonzero) or common component (for narrow range, like from 0.999 to 1.000 – enabled if tune&2 is nonzero). Also set the position pos of common multiplier/component on the axis: =0 at minimal axis value, =1 at maximal axis value. Default value is 1.15. If tune&4 is nonzero then zeros will be added to fixed width of all axis labels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 767 def set_tune_ticks end |
#set_warn(code, info = "") ⇒ nil
Error handling. Set warning code. Normally you should call this function only for clearing the warning state, i.e. call SetWarn(0);. Text info will be printed as is if code<0.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 431 def set_warn end |
#show_frame(i) ⇒ nil
Frames/Animation. Appends drawing data from frame i to current one. Function work if MGL_VECT_FRAME is set on (by default).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1356 def show_frame end |
#show_image(viewer, nowait = false) ⇒ nil
Export to file. Displays the current picture using external program viewer for viewing. The function save the picture to temporary file and call viewer to display it. If nowait=true then the function return immediately (it will not wait while window will be closed).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1266 def show_image end |
#sphere(p, r, stl = "r") ⇒ nil
Primitives. Draw the sphere with radius r and center at point p=(x0, y0, z0) and color stl.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1761 def sphere end |
#start_gif(fname, ms = 100) ⇒ nil
Frames/Animation. Start writing frames into animated GIF file fname. Parameter ms set the delay between frames in milliseconds. You should not change the picture size during writing the cinema. Use CloseGIF() to finalize writing. Note, that this function is disabled in OpenGL mode.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1396 def start_gif end |
#start_group(name) ⇒ nil
Export picture. Starts group definition. Groups contain objects and other groups, they are used to select a part of a model to zoom to or to make invisible or to make semitransparent and so on.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1077 def start_group end |
#stem(y, pen = "", opt = "") ⇒ nil #stem(x, y, pen = "", opt = "") ⇒ nil #stem(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw vertical lines from points to axis plane. See also area, bars, plot, mark. Stem sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2320 def stem end |
#step(y, pen = "", opt = "") ⇒ nil #step(x, y, pen = "", opt = "") ⇒ nil #step(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw continuous stairs for points to axis plane. See also plot, stem, tile, boxs. Step sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2168 def step end |
#stfa(re, im, dn, sch = "", opt = "") ⇒ nil #stfa(x, y, re, im, dn, sch = "", opt = "") ⇒ nil
Dual plotting. Draws spectrogram of complex array re+i*im for Fourier size of dn points at plane z equal to minimal z-axis value. For example in 1D case, result is density plot of data res(i,j)=|sum_d^dn exp(I*j*d)*(re(i*dn+d)+I*im(i*dn+d))|/dn with size (int(nx/dn), dn, ny). At this array re, im parametrically depend on coordinates x, y. The size of re and im must be the same. The minor dimensions of arrays x, y, re should be equal. Arrays x, y can be vectors (not matrix as re). STFA sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3536 def stfa end |
#stick_plot(num, ind, tet, phi) ⇒ nil
Subplots and rotation. Puts further plotting in ind-th cell of stick with num cells. At this, stick is rotated on angles tet, phi. The position is relative to previous subplot (or inplot with rel=false).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 924 def stick_plot end |
#stop(stop = true) ⇒ nil
Stop drawing. Ask to stop drawing if stop is non-zero, otherwise reset stop flag.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 488 def stop end |
#sub_plot(nx, ny, m, stl = "<>_^", dx = 0, dy = 0) ⇒ nil
Subplots and rotation. Puts further plotting in a m-th cell of nx*ny grid of the whole frame area. This function set off any aspects or rotations. So it should be used first for creating the subplot. Extra space will be reserved for axis/colorbar if stl contain: From the aesthetical point of view it is not recommended to use this function with different matrices in the same frame. The position of the cell can be shifted from its default position by relative size dx, dy. Note, colorbar can be invisible (be out of image borders) if you set empty style ”.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 857 def sub_plot end |
#suppress_warn(state) ⇒ nil
Error handling. Disable printing warnings to stderr if state is nonzero.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 459 def suppress_warn end |
#surf(z, sch = "", opt = "") ⇒ nil #surf(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws surface specified parametrically (x(i,j), y(i,j), z(i,j)). If string sch have symbol ‘#’ then grid lines are drawn. If string sch have symbol ‘.’ then plot by dots is produced. See also mesh, dens, belt, tile, boxs, surfc, surfa. Surf sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2737 def surf end |
#surf3(a, sch = "", opt = "") ⇒ nil #surf3(x, y, z, a, sch = "", opt = "") ⇒ nil
3D plotting. Draws num-th uniformly distributed in color range isosurfaces for 3d data. Here num is equal to parameter value in options opt (default is 3).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3114 def surf3 end |
#surf_3a(a, c, sch = "", opt = "") ⇒ nil #surf_3a(x, y, z, a, c, sch = "", opt = "") ⇒ nil
Dual plotting. Draws num-th uniformly distributed in color range isosurfaces for 3d data. At this array c can be vector with values of transparency and num=c.nx. In opposite case num is equal to parameter value in options opt (default is 3).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3445 def surf_3a end |
#surf_3c(a, c, sch = "", opt = "") ⇒ nil #surf_3c(x, y, z, a, c, sch = "", opt = "") ⇒ nil
Dual plotting. Draws num-th uniformly distributed in color range isosurfaces for 3d data. Here num is equal to parameter value in options opt (default is 3).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3375 def surf_3c end |
#surf_a(z, c, sch = "", opt = "") ⇒ nil #surf_a(x, y, z, c, sch = "", opt = "") ⇒ nil
Dual plotting. The function draws surface specified parametrically (x(i,j), y(i,j), z(i,j)) and transparent it by matrix c(i,j). If string sch have symbol ‘#’ then grid lines are drawn. If string sch have symbol ‘.’ then plot by dots is produced. All dimensions of arrays z and c must be equal. Surface is plotted for each z slice of the data. See also surf, surfc, surf3a. SurfA sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3420 def surf_a end |
#surf_c(z, c, sch = "", opt = "") ⇒ nil #surf_c(x, y, z, c, sch = "", opt = "") ⇒ nil
Dual plotting. The function draws surface specified parametrically (x(i,j), y(i,j), z(i,j)) and color it by matrix c(i,j). If string sch have symbol ‘#’ then grid lines are drawn. If string sch have symbol ‘.’ then plot by dots is produced. All dimensions of arrays z and c must be equal. Surface is plotted for each z slice of the data. See also surf, surfa, surf3c. SurfC sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3350 def surf_c end |
#table(val, txt, fnt = "", opt = "") ⇒ nil #table(x, y, val, txt, fnt = "", opt = "") ⇒ nil
1D plotting. These functions draw table with values of val and captions from string txt (separated by newline symbol ‘n’) at points (x, y) (default at (0,0)) related to current subplot. String fnt may contain: Option value set the width of the table (default is 1). See also plot, label. Table sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2650 def table end |
#tape(y, pen = "", opt = "") ⇒ nil #tape(x, y, pen = "", opt = "") ⇒ nil #tape(x, y, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw tapes of normals for curve between points (x(i), y(i), z(i)). Initial tape(s) was selected in x-y plane (for ‘x’ in pen) and/or y-z plane (for ‘x’ in pen). The width of tape is proportional to barwidth and can be changed by option value. See also plot, flow, barwidth. Tape sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2225 def tape end |
#tens(y, c, pen = "", opt = "") ⇒ nil #tens(x, y, c, pen = "", opt = "") ⇒ nil #tens(x, y, z, c, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw continuous lines between points (x(i), y(i), z(i)) with color defined by the special array c(i) (look like tension plot). String pen specifies the color scheme (see Color scheme) and style and/or width of line (see Line styles). See also plot, mesh, fall. Tens sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2198 def tens end |
#ternary(tern) ⇒ nil
Curved coordinates. The function sets to draws Ternary (tern=1), Quaternary (tern=2) plot or projections (tern=4,5,6).
Ternary plot is special plot for 3 dependent coordinates (components) a, b, c so that a+b+c=1. MathGL uses only 2 independent coordinates a=x and b=y since it is enough to plot everything. At this third coordinate z act as another parameter to produce contour lines, surfaces and so on.
Correspondingly, Quaternary plot is plot for 4 dependent coordinates a, b, c and d so that a+b+c+d=1. MathGL uses only 3 independent coordinates a=x, b=y and d=z since it is enough to plot everything.
Projections can be obtained by adding value 4 to tern argument. So, that tern=4 will draw projections in Cartesian coordinates, tern=5 will draw projections in Ternary coordinates, tern=6 will draw projections in Quaternary coordinates. If you add 8 instead of 4 then all text labels will not be printed on projections.
Use Ternary(0) for returning to usual axis. Ternary axis Axis projection
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 678 def ternary end |
#text(y, text, fnt = "", opt = "") ⇒ nil #text(x, y, text, fnt = "", opt = "") ⇒ nil #text(x, y, z, text, fnt = "", opt = "") ⇒ nil
Text printing. The function draws text along the curve between points (x(i), y(i), z(i)) by font style fnt. The string fnt may contain symbols ‘t’ for printing the text under the curve (default), or ‘T’ for printing the text under the curve. The sizes of 1st dimension must be equal for all arrays x.nx=y.nx=z.nx. If array x is not specified then its an automatic array is used with values equidistantly distributed in x-axis range (see Ranges (bounding box)). If array z is not specified then z(i) equal to minimal z-axis value is used. String opt contain command options (see Command options).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1947 def text end |
#text_mark(y, txt, fnt = "", opt = "") ⇒ nil #text_mark(y, r, txt, fnt = "", opt = "") ⇒ nil #text_mark(x, y, r, txt, fnt = "", opt = "") ⇒ nil #text_mark(x, y, z, r, txt, fnt = "", opt = "") ⇒ nil
1D plotting. These functions draw string txt as marks with size proportional to r(i)*marksize at points (x(i), y(i), z(i)). By default (if omitted) r(i)=1. See also plot, mark, stem. TextMark sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2596 def text_mark end |
#tile(z, sch = "", opt = "") ⇒ nil #tile(x, y, z, sch = "", opt = "") ⇒ nil
2D plotting. The function draws horizontal tiles for surface specified parametrically (x(i,j), y(i,j), z(i,j)). Such plot can be used as 3d generalization of step. See also surf, boxs, step, tiles. Tile sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2837 def tile end |
#tile_s(z, c, sch = "", opt = "") ⇒ nil #tile_s(x, y, z, r, sch = "", opt = "") ⇒ nil
Dual plotting. The function draws horizontal tiles for surface specified parametrically (x(i,j), y(i,j), z(i,j)). It is mostly the same as tile but the size of tiles is determined by r array. This is some kind of “transparency” useful for exporting to EPS files. Tiles is plotted for each z slice of the data. See also surfa, tile. TileS sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3490 def tile_s end |
#title(txt, stl = "", size = -2) ⇒ nil
Subplots and rotation. Add text title for current subplot/inplot. Parameter stl can contain: Parameter size set font size. This function set off any aspects or rotations. So it should be used just after creating subplot.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 937 def title end |
#torus(r, z, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw surface which is result of curve (r, z) rotation around axis. If string pen contain symbols ‘x’ or ‘z’ then rotation axis will be set to specified direction (default is ‘y’). If string pen have symbol ‘#’ then wire plot is produced. If string pen have symbol ‘.’ then plot by dots is produced. See also plot, axial. Torus sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2717 def torus end |
#traj(x, y, ax, ay, sch = "", opt = "") ⇒ nil #traj(x, y, z, ax, ay, az, sch = "", opt = "") ⇒ nil
Vector fields. The function draws vectors (ax, ay, az) along a curve (x, y, z). The length of arrows are proportional to sqrt(ax^2+ay^2+az^2). String pen specifies the color (see Line styles). By default (pen=“”) color from palette is used (see Palette and colors). Option value set the vector length factor (if non-zero) or vector length to be proportional the distance between curve points (if value=0). The minor sizes of all arrays must be equal and large 2. The plots are drawn for each row if one of the data is the matrix. See also vect. Traj sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3562 def traj end |
#tri_cont(id, x, y, z, c, sch = "", opt = "") ⇒ nil #tri_cont(id, x, y, z, sch = "", opt = "") ⇒ nil
Other plotting. The function draws contour lines for surface of triangles at z=v(k) (or at z equal to minimal z-axis value if sch contain symbol ‘_’). Triangle vertexes are set by indexes id of data points (x(i), y(i), z(i)). Contours are plotted for z(i,j)=v(k) where v(k) are values of data array v. If v is absent then arrays of option value elements equidistantly distributed in color range is used. String sch sets the color scheme. Array c (if specified) is used for contour coloring. First dimensions of id must be 3 or greater. Arrays x, y, z must have equal sizes. Parameter c set the colors of triangles (if id.ny=c.nx) or colors of vertexes (if x.nx=c.nx). See also triplot, cont, triangulation.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4150 def tri_cont end |
#tri_cont_v(v, id, x, y, z, c, sch = "", opt = "") ⇒ nil #tri_cont_v(v, id, x, y, z, sch = "", opt = "") ⇒ nil
Other plotting. The function draws contour lines for surface of triangles at z=v(k) (or at z equal to minimal z-axis value if sch contain symbol ‘_’). Triangle vertexes are set by indexes id of data points (x(i), y(i), z(i)). Contours are plotted for z(i,j)=v(k) where v(k) are values of data array v. If v is absent then arrays of option value elements equidistantly distributed in color range is used. String sch sets the color scheme. Array c (if specified) is used for contour coloring. First dimensions of id must be 3 or greater. Arrays x, y, z must have equal sizes. Parameter c set the colors of triangles (if id.ny=c.nx) or colors of vertexes (if x.nx=c.nx). See also triplot, cont, triangulation.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4177 def tri_cont_v end |
#tri_plot(id, x, y, sch = "", opt = "") ⇒ nil #tri_plot(id, x, y, z, c, sch = "", opt = "") ⇒ nil #tri_plot(id, x, y, z, sch = "", opt = "") ⇒ nil
Other plotting. The function draws the surface of triangles. Triangle vertexes are set by indexes id of data points (x(i), y(i), z(i)). String sch sets the color scheme. If string contain ‘#’ then wire plot is produced. First dimensions of id must be 3 or greater. Arrays x, y, z must have equal sizes. Parameter c set the colors of triangles (if id.ny=c.nx) or colors of vertexes (if x.nx=c.nx). See also dots, crust, quadplot, triangulation. TriPlot and QuadPlot
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 4125 def tri_plot end |
#tube(y, r, pen = "", opt = "") ⇒ nil #tube(y, r, pen = "", opt = "") ⇒ nil #tube(x, y, r, pen = "", opt = "") ⇒ nil #tube(x, y, r, pen = "", opt = "") ⇒ nil #tube(x, y, z, r, pen = "", opt = "") ⇒ nil #tube(x, y, z, r, pen = "", opt = "") ⇒ nil
1D plotting. These functions draw the tube with variable radius r(i) along the curve between points (x(i), y(i), z(i)). See also plot. Tube sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 2704 def tube end |
#vect(ax, ay, az, sch = "", opt = "") ⇒ nil #vect(x, y, z, ax, ay, az, sch = "", opt = "") ⇒ nil
Vector fields. This is 3D version of the first functions. Here arrays ax, ay, az must be 3-ranged tensors with equal sizes and the length and color of arrows is proportional to sqrt(ax^2+ay^2+az^2).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3585 def vect end |
#vect3(ax, ay, az, sch = "", sval = -1, opt = "") ⇒ nil #vect3(x, y, z, ax, ay, az, sch = "", sval = -1, opt = "") ⇒ nil
Vector fields. The function draws 3D vector field plot for the field (ax, ay, az) depending parametrically on coordinates x, y, z. Vector field is drawn at slice sVal in direction (‘x’, ‘y’, ‘z’) if sch contain corresponding symbol (by default, ‘y’ direction is used). The length and color of arrows are proportional to sqrt(ax^2+ay^2+az^2). The number of arrows depend on meshnum. The appearance of the hachures (arrows) can be changed by symbols: See also vect, flow, dew. Vect3 sample
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 3638 def vect3 end |
#view(tetx, tetz, tety = 0) ⇒ nil
Subplots and rotation. Rotates a further plotting relative to each axis (x, z, y) consecutively on angles TetX, TetZ, TetY. Rotation is done independently on rotate. Attention! this settings can not be overwritten by DefaultPlotParam(). Use Zoom(0,0,1,1) to return default view.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1024 def view end |
#write_bmp(fname, descr = "") ⇒ nil
Export to file. Exports current frame to BMP file. Parameter fname specifies the file name, descr adds description to file. There is no compression used.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1143 def write_bmp end |
#write_bps(fname, descr = "") ⇒ nil
Export to file. Exports current frame to EPS file using bitmap representation. Parameter fname specifies the file name, descr adds description to file. By default there is no description added. If file name is terminated by ‘z’ (for example, ‘fname.eps.gz’) then file will be compressed in gzip format.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1176 def write_bps end |
#write_eps(fname, descr = "") ⇒ nil
Export to file. Exports current frame to EPS file using vector representation. So it is not recommended for the export of large data plot. It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file. By default there is no description added. If file name is terminated by ‘z’ (for example, ‘fname.eps.gz’) then file will be compressed in gzip format. Note, that EPS format don’t support color interpolation, and the resulting plot will look as you use quality=1 for plotting.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1165 def write_eps end |
#write_frame(fname = "", descr = "") ⇒ nil
Export to file. Exports current frame to a file fname which type is determined by the extension. Parameter descr adds description to file (can be “”). If fname=“” then the file ‘frame####.jpg’ is used, where ‘####’ is current frame id and name ‘frame’ is defined by plotid class property.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1097 def write_frame end |
#write_gif(fname, descr = "") ⇒ nil
Export to file. Exports current frame to GIF file. Parameter fname specifies the file name, descr adds description to file. By default there is no description added. This function does nothing if HAVE_GIF isn’t defined during compilation of MathGL library.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1132 def write_gif end |
#write_jpeg(fname, descr = "") ⇒ nil
Export to file. Exports current frame to JPEG file. Parameter fname specifies the file name, descr adds description to file. By default there is no description added. This function does nothing if HAVE_JPEG isn’t defined during compilation of MathGL library.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1121 def write_jpeg end |
#write_json(fname, descr = "") ⇒ nil
Export to file. Exports current frame to textual file using JSON format. Later this file can be used for faster loading and viewing by JavaScript script. Parameter fname specifies the file name, descr adds description to file.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1277 def write_json end |
#write_obj(fname, descr = "") ⇒ nil
Export to file. Exports current frame to OBJ/MTL file using vector representation (see en.wikipedia.org/wiki/Wavefront_.obj_file, OBJ format for details). Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1221 def write_obj end |
#write_off(fname, descr = "", colored = false) ⇒ nil
Export to file. Exports current frame to OFF file using vector representation (see people.sc.fsu.edu/~jburkardt/data/off/off.html, OFF format for details). Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1255 def write_off end |
#write_png(fname, descr = "", compr = "", alpha = true) ⇒ nil
Export to file. Exports current frame to PNG file. Parameter fname specifies the file name, descr adds description to file, alpha gives the transparency type. By default there are no description added and semitransparent image used. This function does nothing if HAVE_PNG isn’t defined during compilation of MathGL library.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1110 def write_png end |
#write_prc(fname, descr = "", make_pdf = true) ⇒ nil
Export to file. Exports current frame to PRC file using vector representation (see en.wikipedia.org/wiki/PRC_%28file_format%29). Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name). If parameter make_pdf=true and PDF was enabled at MathGL configure then corresponding PDF file with 3D image will be created.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1210 def write_prc end |
#write_stl(fname, descr = "") ⇒ nil
Export to file. Exports current frame to STL file using vector representation (see en.wikipedia.org/wiki/STL_(file_format), STL format for details). Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1243 def write_stl end |
#write_svg(fname, descr = "") ⇒ nil
Export to file. Exports current frame to SVG (Scalable Vector Graphics) file using vector representation. In difference of EPS format, SVG format support transparency that allows to correctly draw semitransparent plot (like surfa, surf3a or cloud). Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name). If file name is terminated by ‘z’ (for example, ‘fname.svgz’) then file will be compressed in gzip format. Note, that SVG format don’t support color interpolation, and the resulting plot will look as you use quality=1 for plotting.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1187 def write_svg end |
#write_tex(fname, descr = "") ⇒ nil
Export to file. Exports current frame to LaTeX (package Tikz/PGF) file using vector representation. Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name). Note, there is no text scaling now (for example, in subplots), what may produce miss-aligned labels.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1198 def write_tex end |
#write_tga(fname, descr = "") ⇒ nil
Export to file. Exports current frame to TGA file. Parameter fname specifies the file name, descr adds description to file. There is no compression used.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1154 def write_tga end |
#write_xyz(fname, descr = "") ⇒ nil
Export to file. Exports current frame to XYZ/XYZL/XYZF files using vector representation (see people.sc.fsu.edu/~jburkardt/data/xyz/xyz.html, XYZ format for details). Note, the output file may be too large for graphic of large data array (especially for surfaces). It is better to use bitmap format (for example PNG or JPEG). However, program has no internal limitations for size of output file. Parameter fname specifies the file name, descr adds description to file (default is file name).
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1232 def write_xyz end |
#zoom(x1, y1, x2, y2) ⇒ nil
Subplots and rotation. The function changes the scale of graphics that correspond to zoom in/out of the picture. After function call the current plot will be cleared and further the picture will contain plotting from its part (x1,x2)*(y1,y2). Here picture coordinates x1, x2, y1, y2 changes from 0 to 1. Attention! this settings can not be overwritten by any other functions, including DefaultPlotParam(). Use Zoom(0,0,1,1) to return default view.
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 1037 def zoom end |
#zoom_axis(p1, p2) ⇒ nil
Ranges (bounding box). Additionally extend axis range for any settings made by SetRange or SetRanges functions according the formula min = (max-min)*p1 and max = (max-min)*p1 (or min *= (max/min)^p1 and max *= (max/min)^p1 for log-axis range when inf>max/min>100 or 0<max/min<0.01). Initial ranges are (0, 1). Attention! this settings can not be overwritten by any other functions, including DefaultPlotParam().
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# File 'lib/mathgl/doc/libdoc_core_en.rb', line 637 def zoom_axis end |