Class: SVG::Plot

Inherits:
Object
  • Object
show all
Defined in:
lib/plot2d.rb,
lib/plot2d/boxplot.rb,
lib/plot2d/markers.rb,
lib/plot2d/scatter.rb,
lib/plot2d/lineplot.rb

Constant Summary collapse

@@colors = 
[
"cyan","red","green","blue","orange","deeppink","lightgreen","black","purple","gray",
"gray","cyan","purple","tomato","black","green","lightgreen","cornflowerblue","pink","orange"] * 2
@@markers = 
[".","o","s","1","*","x","+","d","p","H"] * 4
@@linestyles = 
[
  "-","--","-.",":","3","10 1","10 5","5 10","5 2 2 5","3 10",
  "3 10","5 2 2 5","5 10","10 5","10 1","3",":","-.","--","-"
] * 2

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(svg) ⇒ Plot

Returns a new instance of Plot.



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# File 'lib/plot2d.rb', line 42

def initialize(svg)
  @svg = svg

  @padleft   = 100
  @padright  = 50
  @padtop    = 50
  @padbottom = 100
  @colors    = [] 
  @labels    = []
  @markers   = [] 
  @linestyles   = [] 
  @opacities = [] 
  @linewidth = 2

  @markernum  = 10
  @markersize = 15
   
  @xlabel = ""
  @ylabel = ""
  @axcolor = "black"
  @axlinewidth = 2
  @axlabelstrokewidth = 0.5
  @axlabelfontsize = 25
  @xlabelformat = "%-0.4f"
  @ylabelformat = "%-0.4f"
   

  @ticksnum = 5
  @tickslen = 10 
  @tickstextlen = 60
  @ticksfontsize = 18
  @ticksstrokewidth = 0.1
  
  @legendfontsize = 20
  @legendbgcolor = "white"
  @legendbgopacity = 0.8
  @legendfgcolor = "black"
  @legendlinelen = 50 
  @legendheight = 100 
  @legendpad = 10 

  @title = ""
  @titlefontsize = 40 

  @minx = -1.0/0.0 
  @maxx = 1.0/0.0
  @miny = -1.0/0.0
  @maxy = 1.0/0.0

end

Instance Attribute Details

#axcolor ⇒ Object

Returns the value of attribute axcolor.



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# File 'lib/plot2d.rb', line 35

def axcolor
  @axcolor
end

#axlabelfontsize ⇒ Object

Returns the value of attribute axlabelfontsize.



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# File 'lib/plot2d.rb', line 35

def axlabelfontsize
  @axlabelfontsize
end

#axlabelstrokewidth ⇒ Object

Returns the value of attribute axlabelstrokewidth.



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# File 'lib/plot2d.rb', line 35

def axlabelstrokewidth
  @axlabelstrokewidth
end

#axlinewidth ⇒ Object

Returns the value of attribute axlinewidth.



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# File 'lib/plot2d.rb', line 35

def axlinewidth
  @axlinewidth
end

#colors ⇒ Object

Returns the value of attribute colors.



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# File 'lib/plot2d.rb', line 30

def colors
  @colors
end

#labels ⇒ Object

Returns the value of attribute labels.



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# File 'lib/plot2d.rb', line 30

def labels
  @labels
end

#legendbgcolor ⇒ Object

Returns the value of attribute legendbgcolor.



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# File 'lib/plot2d.rb', line 38

def legendbgcolor
  @legendbgcolor
end

#legendbgopacity ⇒ Object

Returns the value of attribute legendbgopacity.



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# File 'lib/plot2d.rb', line 38

def legendbgopacity
  @legendbgopacity
end

#legendfgcolor ⇒ Object

Returns the value of attribute legendfgcolor.



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# File 'lib/plot2d.rb', line 38

def legendfgcolor
  @legendfgcolor
end

#legendfontsize ⇒ Object

Returns the value of attribute legendfontsize.



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# File 'lib/plot2d.rb', line 38

def legendfontsize
  @legendfontsize
end

#legendheight ⇒ Object

Returns the value of attribute legendheight.



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# File 'lib/plot2d.rb', line 38

def legendheight
  @legendheight
end

#legendlinelen ⇒ Object

Returns the value of attribute legendlinelen.



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# File 'lib/plot2d.rb', line 38

def legendlinelen
  @legendlinelen
end

#legendpad ⇒ Object

Returns the value of attribute legendpad.



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# File 'lib/plot2d.rb', line 38

def legendpad
  @legendpad
end

#linestyles ⇒ Object

Returns the value of attribute linestyles.



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# File 'lib/plot2d.rb', line 30

def linestyles
  @linestyles
end

#linewidth ⇒ Object

Returns the value of attribute linewidth.



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# File 'lib/plot2d.rb', line 30

def linewidth
  @linewidth
end

#markernum ⇒ Object

Returns the value of attribute markernum.



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# File 'lib/plot2d.rb', line 34

def markernum
  @markernum
end

#markers ⇒ Object

Returns the value of attribute markers.



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# File 'lib/plot2d.rb', line 30

def markers
  @markers
end

#markersize ⇒ Object

Returns the value of attribute markersize.



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# File 'lib/plot2d.rb', line 34

def markersize
  @markersize
end

#maxx ⇒ Object

Returns the value of attribute maxx.



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# File 'lib/plot2d.rb', line 28

def maxx
  @maxx
end

#maxy ⇒ Object

Returns the value of attribute maxy.



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# File 'lib/plot2d.rb', line 28

def maxy
  @maxy
end

#minx ⇒ Object

Returns the value of attribute minx.



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# File 'lib/plot2d.rb', line 28

def minx
  @minx
end

#miny ⇒ Object

Returns the value of attribute miny.



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# File 'lib/plot2d.rb', line 28

def miny
  @miny
end

#opacities ⇒ Object

Returns the value of attribute opacities.



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# File 'lib/plot2d.rb', line 30

def opacities
  @opacities
end

#padbottom ⇒ Object

Returns the value of attribute padbottom.



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# File 'lib/plot2d.rb', line 30

def padbottom
  @padbottom
end

#padleft ⇒ Object

Returns the value of attribute padleft.



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# File 'lib/plot2d.rb', line 30

def padleft
  @padleft
end

#padright ⇒ Object

Returns the value of attribute padright.



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# File 'lib/plot2d.rb', line 30

def padright
  @padright
end

#padtop ⇒ Object

Returns the value of attribute padtop.



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# File 'lib/plot2d.rb', line 30

def padtop
  @padtop
end

#ticksfontsize ⇒ Object

Returns the value of attribute ticksfontsize.



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# File 'lib/plot2d.rb', line 37

def ticksfontsize
  @ticksfontsize
end

#tickslen ⇒ Object

Returns the value of attribute tickslen.



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# File 'lib/plot2d.rb', line 37

def tickslen
  @tickslen
end

#ticksnum ⇒ Object

Returns the value of attribute ticksnum.



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# File 'lib/plot2d.rb', line 37

def ticksnum
  @ticksnum
end

#ticksstrokewidth ⇒ Object

Returns the value of attribute ticksstrokewidth.



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# File 'lib/plot2d.rb', line 37

def ticksstrokewidth
  @ticksstrokewidth
end

#tickstextlen ⇒ Object

Returns the value of attribute tickstextlen.



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# File 'lib/plot2d.rb', line 37

def tickstextlen
  @tickstextlen
end

#title ⇒ Object

Returns the value of attribute title.



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# File 'lib/plot2d.rb', line 40

def title
  @title
end

#titlefontsize ⇒ Object

Returns the value of attribute titlefontsize.



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# File 'lib/plot2d.rb', line 40

def titlefontsize
  @titlefontsize
end

#xlabel ⇒ Object

Returns the value of attribute xlabel.



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# File 'lib/plot2d.rb', line 35

def xlabel
  @xlabel
end

#xlabelformat ⇒ Object

Returns the value of attribute xlabelformat.



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# File 'lib/plot2d.rb', line 35

def xlabelformat
  @xlabelformat
end

#ylabel ⇒ Object

Returns the value of attribute ylabel.



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# File 'lib/plot2d.rb', line 35

def ylabel
  @ylabel
end

#ylabelformat ⇒ Object

Returns the value of attribute ylabelformat.



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# File 'lib/plot2d.rb', line 35

def ylabelformat
  @ylabelformat
end

Class Method Details

.colors ⇒ Object 



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# File 'lib/plot2d.rb', line 13

def self.colors() 
  return @@colors 
end

.linestyles ⇒ Object 



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# File 'lib/plot2d.rb', line 24

def self.linestyles
  return @@linestyles
end

.mapxcoords(x, minx, maxx, w, padleft, padright, log) ⇒ Object 



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# File 'lib/plot2d.rb', line 124

def self.mapxcoords(x,minx,maxx,w,padleft,padright,log)
  begin 
    x = log ? Math.log(x,10) : x 
  rescue 
    STDERR.puts "WARNING error execption Math.log(#{x},10)"
    x = -1.0/0.0
  end 
  xnew = padleft + ((x - minx)/((maxx-minx) + 1e-100))*(w-(padleft + padright))
end

.mapycoords(y, miny, maxy, h, padtop, padbottom, log) ⇒ Object 



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# File 'lib/plot2d.rb', line 134

def self.mapycoords(y,miny,maxy,h,padtop,padbottom,log)
  begin 
    y = log ? Math.log(y,10) : y 
  rescue 
    STDERR.puts "WARNING error execption Math.log(#{y},10)"
    y = -1.0/0.0
  end
  ynew = padtop + ((maxy - y)/((maxy-miny) + 1e-100))*(h-(padtop + padbottom))
end

.markers ⇒ Object 



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# File 'lib/plot2d.rb', line 17

def self.markers() 
  return @@markers 
end

Instance Method Details

#axis(ticks, labels, flip: false, rotang: 0, **args) ⇒ Object 



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# File 'lib/plot2d.rb', line 219

def axis(ticks,labels, flip: false, rotang: 0,**args)
  min,max = ticks[0], ticks[-1]
  # Dibujar el eje
  @svg.g(id: "axis#{flip ? @xlabel : @ylabel}", 
    text_anchor: "middle",
    stroke: @axcolor, 
    stroke_width: @axlinewidth,
    fill: @axcolor,**args) do |axis|
    axis.path() do |path|
      path.m(min[0],min[1])
      path.l(max[0],max[1])
    end 

    # Mostrar nombre
    t = SVG.transform do |t|
      if flip
        t.translate(@svg.width/2,@svg.height - @axlabelfontsize)
      else 
        t.translate(@axlabelfontsize,@svg.height/2)
        t.rotate(-90,0,0)
      end 
    end 

    axis.text(text: flip ? @xlabel : @ylabel, x: 0, y: 0, stroke_width: @axlabelstrokewidth,transform: t,
      font_size: @axlabelfontsize)

    # Colocar los ticks
    axis.path do |tickspath|
      (0 ... ticks.size).each do |i|
        x,y = ticks[i]
        tickspath.m(x-@tickslen/2,y)
        tickspath.l(@tickslen,0,relative: true)
        tickspath.m(x,y-@tickslen/2)
        tickspath.l(0,@tickslen,relative: true)
      end 
    end 

    # Colocar los valores 
    (0 ... ticks.size).each do |i| 
      x,y = ticks[i]
      x +=  flip ? 0 : -@tickslen 
      y += !flip ? 0 : @tickslen + @ticksfontsize*1.5
      text = labels[i]
      axis.text(
        x: x, 
        y: y , 
        text: text, 
        text_anchor: flip ? "middle" : "end",
        stroke_width: @ticksstrokewidth,
        font_size: @ticksfontsize,
        transform: SVG.transform{|t| t.rotate(rotang,x,y)})
    end 
  end 
end

#boxplot(boxesdata, colors: @@colors, markers: @@markers, linewidths: nil, labels: nil, opacity: nil, ylog: false, **args) ⇒ Object 



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# File 'lib/plot2d/boxplot.rb', line 4

def boxplot(
    boxesdata,
    colors: @@colors,
    markers: @@markers,
    linewidths: nil,
    labels: nil,
    opacity: nil,
    ylog: false, **args)

  @colors = colors.dup
  @markers = markers.dup 
  @labels = labels.dup 
  linewidths = linewidths || @colors.size 

  #
  median = lambda do |arr|
    len = arr.size
    if arr.size.even? 
      return (arr[len/2] + arr[(len+1)/2])/2.0
    else 
      return arr[len/2]
    end
  end 

  mean = lambda do |arr|
    return arr.reduce(0.0){|acc,d| acc + d} / arr.size 
  end 

  std = lambda do |arr,mean|
    return (arr.reduce(0.0){|acc,d| acc + (d - mean)**2}/(arr.size-1))**0.5
  end 
 

  # Cantidad de cajas
  nboxes = boxesdata.size 
  min,max = boxesdata.flatten.minmax

  # Obtener los estadísticos necesarios para el boxplot
  boxes = [ ]
  nboxes.times do |i|
    box = {}
    data = boxesdata[i] 
  
    sz = data.size; 
    data = data.sort
    box[:mean] = mean.call(data)
    box[:q1] = median.call(data[0..data.size/2])
    box[:q2] = median.call(data) 
    box[:q3] = median.call(data[(data.size/2)+1..-1])
    box[:iqr] = box[:q3] - box[:q1]
    box[:median] = box[:q2]
    box[:std] = std.call(data,box[:mean])
  
    box[:w1] = data[0]
    (0 ... data.size).each do |i|
      if data[i]  >= (box[:q1] - (1.5*box[:iqr]))
        box[:w1] = data[i]
        break
      end 
    end 
    box[:w2] = data[-1]
    (0 ... data.size).reverse_each do |i|
      if data[i]  <= (box[:q3] + (1.5*box[:iqr]))
        box[:w2] = data[i]
        break
      end 
    end 

    boxes.push(box)
  end 

  # Modificar el máximo y mínimo para mostrar mejor los boxplots 
  @maxy = boxes.map{|b| b[:w2]*1.01}.max 
  # @miny = boxes.map{|b| b[:w1]*0.1}.max

  boxscale = 0.5
  w = (@svg.width - (@padleft + @padright))  / nboxes
  boxes.each_with_index do |box,i|
    @svg.g(id: @labels.last,
      stroke: @colors[i], 
      fill: @colors[i],
      stroke_width: @linewidth,
      opacity: @opacities.last) do |g|

      boxwidth = boxscale * w
      x = @padleft + w*(i.to_f+0.5)

      ymedian = Plot.mapycoords(box[:median],@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)

      # median line
      g.line(x1: x - boxwidth/2, y1: ymedian, x2: x + boxwidth/2, y2: ymedian, stroke: "black")

      # mean line 
      ymean = Plot.mapycoords(box[:mean],@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)
      g.line(
        x1: x - boxwidth/2, y1: ymean, 
        x2: x + boxwidth/2, y2: ymean, 
        stroke_dasharray: self.linestyle("--"),
        stroke: "black")

      # box 
      yq3 = Plot.mapycoords(box[:q3],@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)
      yq1 = Plot.mapycoords(box[:q1],@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)

      g.rect(x: x-(boxwidth/2), y: yq3, width: boxwidth, height: (yq3-yq1).abs,opacity: 0.2)
      g.rect(x: x-(boxwidth/2), y: yq3, width: boxwidth, height: (yq3-yq1).abs,fill: "none", stroke: "black")
     
      # whiskers
      wisker_width = boxwidth/2
      w1 = Plot.mapycoords(box[:w1],@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)
      w2 = Plot.mapycoords(box[:w2],@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)
     
      g.path(stroke_dasharray: self.linestyle("-"),stroke: "black") do |wp|
        wp.m(x,w2)
        wp.m(-wisker_width/2,0,relative: true)
        wp.l(wisker_width,0,relative: true)
        wp.m(x,w2)
        wp.l(x,yq3)

        wp.m(x,w1)
        wp.m(-wisker_width/2,0,relative: true)
        wp.l(wisker_width,0,relative: true)
        wp.m(x,w1)
        wp.l(x,yq1)
      end  
      # Draw outliers
      boxesdata[i].each do |y| 
        next if  (y >= box[:w1] && y <= box[:w2])
        y = Plot.mapycoords(y,@miny,@maxy,@svg.height,@padtop,@padbottom,ylog)
        self.marker(@markers[i],x,y,"%g" % y,8)
      end  
     
    end 
  end 
  
end

#boxplotticks(nboxes, boxscale = 0.5) ⇒ Object 



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# File 'lib/plot2d.rb', line 290

def boxplotticks(nboxes,boxscale = 0.5)
  ticks = []
  labels = []

  w = (@svg.width - (@padleft + @padright)) / nboxes
  boxwidth = boxscale * w

  ticks.push([@padleft,@svg.height - @padbottom])
  labels.push("")
  nboxes.times do |i| 
    x =  @padleft + w*(i.to_f+0.5)
    ticks.push([x,@svg.height - @padbottom])
    labels.push("%d" % i)
  end 

  ticks.push([@svg.width - @padright,@svg.height - @padbottom])
  labels.push("")
  return ticks,labels
end

#dark_mode ⇒ Object 



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# File 'lib/plot2d.rb', line 93

def dark_mode
  @axcolor = "white"
  @legendbgcolor = "black"
  @legendfgcolor = "white"
end

#legend ⇒ Object 



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# File 'lib/plot2d.rb', line 175

def legend
  legendtextwidth = @legendfontsize*0.75*@labels.map{|e| e.size}.max
  legendwidth  = @legendlinelen + 3*@legendpad + legendtextwidth
  legendheight = 2*@legendpad + @labels.size*2*@legendfontsize

  t = SVG.transform do |t|
    t.translate(@svg.width-legendwidth-@padright,@padtop)
  end 

  @svg.g(id: "legend",transform: t) do |g|
    g.rect(
      x: 0, 
      y: 0 ,
      width: legendwidth, 
      height: legendheight, 
      stroke: "none" , 
      fill: @legendbgcolor, 
      opacity: @legendbgopacity)

    @labels.size.times do |i|
      y = @legendpad + @legendfontsize + (i*2*@legendfontsize)
      g.g(id: "legend-marker-line-"+@labels[i],fill: @colors[i],stroke: @colors[i]) do |g|
        g.line(
          x1: @legendpad,
          y1: y - @legendfontsize.to_i / 4, 
          x2: @legendpad+@legendlinelen, 
          y2: y - @legendfontsize.to_i / 4,
          stroke_dasharray: self.linestyle(@linestyles[i]))
        self.marker(
          @markers[i],
          @legendpad + @legendlinelen.to_i / 2,
          y - @legendfontsize.to_i / 4,
          "",
          @legendfontsize)
      end 
      g.text(x: @legendpad+@legendfontsize+@legendlinelen,y: y ,
        stroke: "none" ,
        fill: @legendfgcolor,
        text: @labels[i],
        font_size: @legendfontsize) 
    end 
  end 
end

#linestyle(style) ⇒ Object 



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# File 'lib/plot2d.rb', line 327

def linestyle(style)
  case style
  when "-" then "5 0"
  when "--","dashed" then "5"
  when "-.","dashdot" then "6 3 3 3"
  when ":","dotted"  then "2"
  when " ","","none" then "0 1"
  else style
  end 
end

#map_and_zip(xraw, yraw, minx, maxx, miny, maxy, xlog, ylog) ⇒ Object 



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# File 'lib/plot2d.rb', line 144

def map_and_zip(xraw,yraw,minx,maxx,miny,maxy,xlog,ylog)
  xp = xraw.map{|v| Plot.mapxcoords(v,minx,maxx,@svg.width,@padleft,@padright,xlog)}
  yp = yraw.map{|v| Plot.mapycoords(v,miny,maxy,@svg.height,@padtop,@padbottom,ylog)}
  pts = xp.zip(yp)  
  pts = pts.reject{|p| p[0].infinite? || p[1].infinite?}
  return pts
end

#marker(marker, x, y, val, ms = @markersize) ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 3

def marker(marker,x,y,val,ms = @markersize)
  t = SVG.transform do |t|
    t.translate(x,y)
    t.scale(ms)
    case marker 
    when "D","x","X" then t.rotate(45)
    when ">","2","H" then t.rotate(90)
    when "v","3" then t.rotate(180)
    when "<","4" then t.rotate(270)
    else nil
    end 
  end 

  case marker 
  when "." then self.marker_point(t,val)
  when "," then self.marker_pixel(t,val)
  when "o" then self.marker_circle(t,val)
  when "^",">","v","<" then self.marker_triangle(t,val)
  when "s","D" then self.marker_square(t,val)
  when "d" then self.marker_diamond(t,val)
  when "+","x" then self.marker_plus(t,0.1,val)
  when "P","X" then self.marker_plus(t,0.2,val)
  when "1","2","3","4" then self.marker_tri(t,val)
  when "h","H" then self.marker_hexagon(t,val)
  when "p" then self.marker_pentagon(t,val)
  when "8" then self.marker_octagon(t,val)
  when "*" then self.marker_star(t,val)
  else raise "unkown marker #{marker}"
  end 
end

#marker_circle(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 42

def marker_circle(t,val="")
  @svg.circle(cx: 0, cy: 0, r: 0.45, transform: t,title: val,stroke_width: 0)
end

#marker_diamond(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 65

def marker_diamond(t,val="")
  @svg.path(transform: t, title: val,stroke_width: 0) do |path|
    path.m(0,-0.5)
    path.l(0.3,0)
    path.l(0,0.5)
    path.l(-0.3,0.0)
    path.z
  end 
end

#marker_hexagon(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 123

def marker_hexagon(t,val="")
  @svg.path(title: val, transform: t,stroke_width: 0) do |path|
    path.m( 0.00,-0.50)
    path.l( 0.40,-0.20)
    path.l( 0.40, 0.30)
    path.l( 0.00, 0.50)
    path.l(-0.40, 0.30)
    path.l(-0.40,-0.20)
    path.z
  end 
end

#marker_octagon(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 146

def marker_octagon(t,val="")
  @svg.path(title: val, transform: t,stroke_width: 0) do |path|
    path.m(-0.25,-0.50)
    path.l( 0.18,-0.50)
    path.l( 0.50,-0.25)
    path.l( 0.50, 0.18)
    path.l( 0.18, 0.50)
    path.l(-0.25, 0.50)
    path.l(-0.50, 0.18)
    path.l(-0.50,-0.25)
    path.z
  end 
end

#marker_pentagon(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 135

def marker_pentagon(t,val="")
  @svg.path(title: val, transform: t,stroke_width: 0) do |path|
    path.m( 0.00,-0.50)
    path.l( 0.45,-0.10)
    path.l( 0.30, 0.50)
    path.l(-0.30, 0.50)
    path.l(-0.45,-0.10)
    path.z
  end 
end

#marker_pixel(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 38

def marker_pixel(t,val="")
  @svg.circle(cx: 0, cy: 0, r: 0.2, transform: t,title: val,stroke_width: 0)
end

#marker_plus(t, width, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 75

def marker_plus(t,width,val="")
  @svg.path(transform: t, title: val,stroke_width: 0 ) do |path|
    path.m(-width,-0.5)
    path.h(width)
    path.v(0.5)
    path.h(-width)
    path.z
  end 
  @svg.path(transform: t, title: val,stroke_width: 0 ) do |path|
    path.m(-0.5,-width)
    path.v(width)
    path.h(0.5)
    path.v(-width)
    path.z
  end 
end

#marker_point(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 34

def marker_point(t,val="")
  @svg.circle(cx: 0, cy: 0, r: 0.3, transform: t,title: val,stroke_width: 0)
end

#marker_square(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 55

def marker_square(t,val="")
  @svg.path(transform: t, title: val,stroke_width: 0) do |path|
    path.m(-0.4,-0.4)
    path.h(0.4)
    path.v(0.4)
    path.h(-0.4)
    path.z
  end 
end

#marker_star(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 160

def marker_star(t,val="")
  @svg.path(title: val, transform: t,stroke_width: 0) do |path|
    path.m(0,-0.5)
    path.l(-0.3,0.5)
    path.l(0.5,-0.1)
    path.l(-0.5,-0.1)
    path.l(0.3,0.5)
    path.z
  end 
end

#marker_tri(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 92

def marker_tri(t,val="")
  @svg.g(title: val, transform: t,stroke_width: 0) do |g|
    width = 0.1
    @svg.path(title: val) do |path|
      path.m(-width,0.5)
      path.h(width)
      path.v(0.0)
      path.h(-width)
      path.z
    end 
    @svg.path(
      title: val,
      transform: SVG.transform{|t| t.rotate(135)}) do |path|
      path.m(-width,0.5)
      path.h(width)
      path.v(0.0)
      path.h(-width)
      path.z
    end 
    @svg.path(
      title: val,
      transform: SVG.transform{|t| t.rotate(225)}) do |path|
      path.m(-width,0.5)
      path.h(width)
      path.v(0.0)
      path.h(-width)
      path.z
    end 
  end 
end

#marker_triangle(t, val = "") ⇒ Object 



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# File 'lib/plot2d/markers.rb', line 46

def marker_triangle(t,val="")
  @svg.path(transform: t, title: val,stroke_width: 0) do |path|
    path.m(0,-0.5)
    path.l(0.5,0.5)
    path.l(-0.5,0.5)
    path.z
  end 
end

#minmax(x, y, xlog: false, ylog: false) ⇒ Object 



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# File 'lib/plot2d.rb', line 99

def minmax(x,y,xlog: false,ylog: false)
  y = y.flatten 
  if ylog 
    y = y
      .map{|e|begin Math.log(e,10) rescue -1.0/0.0 end } 
      .reject{|e| e.infinite?} 
  end 

  miny,maxy = y.minmax
  @miny = miny unless (@miny && @miny.finite?)
  @maxy = maxy unless (@maxy && @maxy.finite?)

  x = x.flatten 
  if xlog 
    x = x
      .map{|e|begin Math.log(e,10) rescue -1.0/0.0 end } 
      .reject{|e| e.infinite?} 
  end 
  minx,maxx = x.minmax
  @minx = minx unless (@minx && @minx.finite?)
  @maxx = maxx unless (@maxx && @maxx.finite?)
end

#plot(xraw, yraw, minx: @minx, maxx: @maxx, miny: @miny, maxy: @maxy, label: nil, color: nil, marker: nil, linestyle: nil, opacity: nil, xlog: false, ylog: false) ⇒ Object 



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# File 'lib/plot2d/lineplot.rb', line 3

def plot(
  xraw, yraw,
  minx: @minx,maxx:  @maxx,miny:  @miny,maxy:  @maxy,
  label:  nil,
  color: nil,
  marker: nil,
  linestyle: nil,
  opacity:  nil,
  xlog: false,ylog: false)

  self.set_plot_style(label,color,marker,linestyle,opacity)
  points = self.map_and_zip(xraw,yraw,minx,maxx,miny,maxy,xlog,ylog)
  
  @svg.g(
    id: @labels.last,
    stroke: @colors.last, 
    fill: @colors.last, 
    stroke_width: @linewidth,
    opacity: @opacities.last) do |g|

      g.path(title: @labels.last,fill: "none",stroke_dasharray: self.linestyle(@linestyles.last)) do |path|
      missing = true
      points.each do |(x,y)|
        if !x.finite? || !y.finite?
          missing = true 
          next
        end 
        if missing 
          path.m(x,y)
          missing = false
        end 
        path.l(x,y) 
      end 
    end 
  
    g.g(id: @labels.last+"-markers", fill: @colors.last) do |mg| 
      points.each_with_index do |(x,y),i|
        next if ((i % (points.size.to_i / @markernum.to_i)) != 0) || !x.finite? || !y.finite?
        self.marker(@markers.last,x,y,yraw[i].round(2))
      end 
    end 
  end  

end

#scatter(xraw, yraw, minx: @minx, maxx: @maxx, miny: @miny, maxy: @maxy, label: nil, color: nil, marker: nil, opacity: nil, xlog: false, ylog: false, **args) ⇒ Object 



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# File 'lib/plot2d/scatter.rb', line 3

def scatter(
  xraw, yraw, 
  minx: @minx, maxx:  @maxx, miny: @miny, maxy: @maxy,
  label: nil, 
  color:  nil, 
  marker:  nil, 
  opacity:  nil,
  xlog: false, ylog: false,**args)
 
  self.set_plot_style(label,color,marker,"",opacity)
  points = self.map_and_zip(xraw,yraw,minx,maxx,miny,maxy,xlog,ylog)
 
  @svg.g(id: @labels.last, stroke: "none",fill: @colors.last,opacity: @opacities.last) do |g|
    points.each_with_index do |(x,y),i|
      self.marker(@markers.last,x,y,"%g" % yraw[i])
    end 
  end 

end

#set_plot_style(label, color, marker, linestyle, opacity) ⇒ Object 



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# File 'lib/plot2d.rb', line 152

def set_plot_style(label,color,marker,linestyle,opacity)
  label = @labels.size.to_s if !label
  color = @@colors[@labels.size] if  !color 
  marker = @@markers[@labels.size] if !marker
  linestyle = @@linestyles[@labels.size] if !linestyle
  opacity = 1.0 if !opacity

  @labels.push(label)
  @colors.push(color)
  @markers.push(marker)
  @linestyles.push(linestyle)
  @opacities.push(opacity)
end

#xticks(min: @minx, max: @maxx, ticksnum: @ticksnum, frmt: @xlabelformat) ⇒ Object 



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# File 'lib/plot2d.rb', line 310

def xticks(min: @minx, max: @maxx, ticksnum: @ticksnum, frmt: @xlabelformat)
  ticks = []
  labels = []

  ticks.push([Plot.mapxcoords(min,min,max,@svg.height,@padleft,@padright,false),@svg.height-@padbottom])
  labels.push(frmt % min)
  ticksnum.times do |i|
    v = min + ((max - min) / (ticksnum+1)) * (i+1)
    ticks.push([Plot.mapxcoords(v,min,max,@svg.height,@padleft,@padright,false),@svg.height-@padbottom])
    labels.push(frmt % v)
  end 
  ticks.push([Plot.mapxcoords(max,min,max,@svg.height,@padleft,@padright,false),@svg.height-@padbottom])
  labels.push(frmt % max)
  return ticks,labels

end

#yticks(min: @miny, max: @maxy, frmt: @ylabelformat, ticksnum: @ticksnum) ⇒ Object 



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# File 'lib/plot2d.rb', line 274

def yticks(min: @miny,max: @maxy,frmt: @ylabelformat, ticksnum: @ticksnum)
  ticks = []
  labels = []

  ticks.push([@padleft,Plot.mapycoords(min,min,max,@svg.height,@padtop,@padbottom,false)])
  labels.push(frmt % min)
    ticksnum.times do |i|
      v = min + ((max - min) / (ticksnum+1)) * (i+1)
      ticks.push([@padleft,Plot.mapycoords(v,min,max,@svg.height,@padtop,@padbottom,false)])
      labels.push(frmt % v)
    end 
    ticks.push([@padleft,Plot.mapycoords(max,min,max,@svg.height,@padtop,@padbottom,false)])
    labels.push(frmt % max)
    return ticks,labels
end