Class: Charty::Backends::Rubyplot

Inherits:
Object
  • Object
show all
Defined in:
lib/charty/backends/rubyplot.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initializeRubyplot

Returns a new instance of Rubyplot.


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# File 'lib/charty/backends/rubyplot.rb', line 14

def initialize
  @plot = ::Rubyplot
end

Class Method Details

.prepareObject


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# File 'lib/charty/backends/rubyplot.rb', line 9

def prepare
  require 'rubyplot'
end

Instance Method Details

#label(x, y) ⇒ Object


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# File 'lib/charty/backends/rubyplot.rb', line 18

def label(x, y)
end

#old_style_render(context, filename = "") ⇒ Object


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# File 'lib/charty/backends/rubyplot.rb', line 36

def old_style_render(context, filename="")
  FileUtils.mkdir_p(File.dirname(filename))
  plot(@plot, context).write(filename)
end

#plot(plot, context) ⇒ Object


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# File 'lib/charty/backends/rubyplot.rb', line 41

def plot(plot, context)
  # case
  # when plot.respond_to?(:xlim)
  #   plot.xlim(context.range_x.begin, context.range_x.end)
  #   plot.ylim(context.range_y.begin, context.range_y.end)
  # when plot.respond_to?(:set_xlim)
  #   plot.set_xlim(context.range_x.begin, context.range_x.end)
  #   plot.set_ylim(context.range_y.begin, context.range_y.end)
  # end

  figure = ::Rubyplot::Figure.new
  axes = figure.add_subplot 0,0
  axes.title = context.title if context.title
  axes.x_title = context.xlabel if context.xlabel
  axes.y_title = context.ylabel if context.ylabel

  case context.method
  when :bar
    context.series.each do |data|
      axes.bar! do |p|
        p.data(data.xs.to_a)
        p.label = data.label
      end
    end
    figure
  when :barh
    raise NotImplementedError
  when :box_plot
    raise NotImplementedError
  when :bubble
    context.series.each do |data|
      axes.bubble! do |p|
        p.data(data.xs.to_a, data.ys.to_a, data.zs.to_a)
        p.label = data.label if data.label
      end
    end
    figure
  when :curve
    context.series.each do |data|
      axes.line! do |p|
        p.data(data.xs.to_a, data.ys.to_a)
        p.label = data.label if data.label
      end
    end
    figure
  when :scatter
    context.series.each do |data|
      axes.scatter! do |p|
        p.data(data.xs.to_a, data.ys.to_a)
        p.label = data.label if data.label
      end
    end
    figure
  when :error_bar
    # refs. https://github.com/SciRuby/rubyplot/issues/26
    raise NotImplementedError
  when :hist
    raise NotImplementedError
  end
end

#render_layout(layout) ⇒ Object


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# File 'lib/charty/backends/rubyplot.rb', line 25

def render_layout(layout)
  (_fig, axes) = *@plot.subplots(nrows: layout.num_rows, ncols: layout.num_cols)
  layout.rows.each_with_index do |row, y|
    row.each_with_index do |cel, x|
      plot = layout.num_rows > 1 ? axes[y][x] : axes[x]
      plot(plot, cel)
    end
  end
  @plot.show
end

#series=(series) ⇒ Object


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# File 'lib/charty/backends/rubyplot.rb', line 21

def series=(series)
  @series = series
end