Class: CTioga2::Graphics::Elements::XYZMap

Inherits:
TiogaElement show all
Includes:
Log, Dobjects
Defined in:
lib/ctioga2/graphics/elements/xyz-map.rb

Overview

TODO:

There should be a way to automatically display level

This class represents a XY map of Z values, ie something that is represented using an image

lines, and possibly only that.

Instance Attribute Summary collapse

Attributes inherited from TiogaElement

#parent

Instance Method Summary collapse

Methods included from Log

debug, error, fatal, #format_exception, #identify, info, init_logger, logger, set_level, #spawn, warn

Methods inherited from TiogaElement

#do, #inspect

Constructor Details

#initialize(dataset, style = nil) ⇒ XYZMap

Creates a new XYZMap object with the given dataset and style.



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 55

def initialize(dataset, style = nil)
  @dataset = dataset
  @curve_style = style
  prepare_data
end

Instance Attribute Details

#curve_style ⇒ Object

A Styles::CurveStyle object saying how the curve should be drawn.

Some of the elements will be overridden.



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 45

def curve_style
  @curve_style
end

#dataset ⇒ Object

The Data::Dataset object that should get plotted.



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 39

def dataset
  @dataset
end

#table ⇒ Object

The IndexedTable object representing the underlying data



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 48

def table
  @table
end

Instance Method Details

#get_boundaries ⇒ Object

Returns the Types::Boundaries of this curve.



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 75

def get_boundaries
  return @table.xy_boundaries
end

#location ⇒ Object

Returns the LocationStyle object of the curve. Returns the one from #curve_style.



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 70

def location
  return @curve_style.location
end

#real_do(t) ⇒ Object

Actually draws the curve



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# File 'lib/ctioga2/graphics/elements/xyz-map.rb', line 81

def real_do(t)
  debug { "Plotting curve #{inspect}" }
  t.context do
    # Of course, there are still quite a few things to do
    # ;-)...

    # Ideas: for leaving things out, I may have to use min_gt
    # along with masking.

    ## @todo handle non-homogeneous XY maps.

    @curve_style.color_map ||= 
      Styles::ColorMap.from_text("Red--Green")
    
    dict = @curve_style.color_map.
      prepare_data_display(t,@table.table,
                           @table.table.min,
                           @table.table.max)
    if @curve_style.zaxis
      begin
        @parent.style.get_axis_style(@curve_style.zaxis).
          set_color_map(@curve_style.color_map, 
                        @table.table.min,
                        @table.table.max)
      rescue
        error { "Could not set Z info to non-existent axis #{@curve_style.zaxis}" }
      end
    end

    dict.update(@table.corner_positions)
    dict.update('width' => @table.width,
                'height' => @table.height)
    dict.update('interpolate' => false)
    if (! @curve_style.fill.transparency) || 
        (@curve_style.fill.transparency < 0.99) 
      t.show_image(dict)
    else
      info { 'Not showing map as transparency is over 0.99' }
    end
  end
end