Class: MotionPlot::Pie

Inherits:
Base
  • Object
show all
Defined in:
lib/motion-plot/chart/pie_plot.rb

Instance Attribute Summary collapse

Attributes inherited from Base

#axes, #data_label, #graph, #layer_hosting_view, #legend, #major_grid_line_style, #plot_options, #plot_space, #plots, #series, #theme, #title, #xaxis, #yaxis

Instance Method Summary collapse

Methods inherited from Base

#add_axis_title, #add_chart_title, #add_legend, #add_plot_space, #add_plot_symbol, #add_xy_range, #bootstrap, #initWithOptions

Instance Attribute Details

#selected_slice ⇒ Object

Returns the value of attribute selected_slice.



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# File 'lib/motion-plot/chart/pie_plot.rb', line 4

def selected_slice
  @selected_slice
end

Instance Method Details

#add_series ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 6

def add_series
  pie                 = CPTPieChart.alloc.init
  pie.dataSource      = self
  pie.delegate        = self
  pie.pieRadius       = pie_radius
  pie.startAngle      = Math::PI/4
  pie.sliceDirection  = CPTPieDirectionClockwise #CPTPieDirectionCounterClockwise
  pie.identifier      = plot_identifier
  
  series_data.each_with_index {|obj, i| @selected_slice = i if(obj[:selected]) }

  add_gradient(pie)

  animate(pie)
  @graph.addPlot(pie)
  @plots << pie
end

#dataLabelForPlot(plot, recordIndex: index) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 60

def dataLabelForPlot(plot, recordIndex: index)
  @data_label.annotation_text_style(series_data[index][:y].round(2))
end

#default_padding ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 24

def default_padding
  pie_series.style.paddings_for(@graph)
  pie_series.style.plot_area.add_style(@graph.plotAreaFrame)
end

#legendTitleForPieChart(pie, recordIndex: index) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 37

def legendTitleForPieChart(pie, recordIndex: index)
  series_data[index][:name]
end

#numberForPlot(plot, field: fieldEnum, recordIndex: index) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 33

def numberForPlot(plot, field: fieldEnum, recordIndex: index)
  fieldEnum == CPTPieChartFieldSliceWidth ? series_data[index][:y] : index
end

#numberOfRecordsForPlot(plot) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 29

def numberOfRecordsForPlot(plot)
  series_data.size
end

#pieChart(plot, sliceWasSelectedAtRecordIndex: index) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 55

def pieChart(plot, sliceWasSelectedAtRecordIndex: index)
  @selected_slice = index
  plot.reloadData
end

#radialOffsetForPieChart(plot, recordIndex: index) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 45

def radialOffsetForPieChart(plot, recordIndex: index)
  offset = 0.0

  if(@selected_slice == index)
    offset = pie_radius / 25.0
  end

  offset
end

#sliceFillForPieChart(plot, recordIndex: index) ⇒ Object 



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# File 'lib/motion-plot/chart/pie_plot.rb', line 41

def sliceFillForPieChart(plot, recordIndex: index)
  CPTFill.alloc.initWithColor Series::COLORS[index].to_color.to_cpt_color
end