Class: MotionPlot::Base

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

Direct Known Subclasses

Bar, Line, Pie

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#axes ⇒ Object

Returns the value of attribute axes.



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

def axes
  @axes
end

#data_label ⇒ Object

Returns the value of attribute data_label.



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

def data_label
  @data_label
end

#graph ⇒ Object (readonly)

Returns the value of attribute graph.



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

def graph
  @graph
end

#layer_hosting_view ⇒ Object (readonly)

Returns the value of attribute layer_hosting_view.



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

def layer_hosting_view
  @layer_hosting_view
end

#legend ⇒ Object

Returns the value of attribute legend.



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

def legend
  @legend
end

#major_grid_line_style ⇒ Object (readonly)

Returns the value of attribute major_grid_line_style.



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

def major_grid_line_style
  @major_grid_line_style
end

#plot_options ⇒ Object

Returns the value of attribute plot_options.



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

def plot_options
  @plot_options
end

#plot_space ⇒ Object (readonly)

Returns the value of attribute plot_space.



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

def plot_space
  @plot_space
end

#plots ⇒ Object (readonly)

Returns the value of attribute plots.



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

def plots
  @plots
end

#series ⇒ Object (readonly)

Returns the value of attribute series.



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

def series
  @series
end

#theme ⇒ Object

Returns the value of attribute theme.



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

def theme
  @theme
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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

def title
  @title
end

#xaxis ⇒ Object (readonly)

Returns the value of attribute xaxis.



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

def xaxis
  @xaxis
end

#yaxis ⇒ Object (readonly)

Returns the value of attribute yaxis.



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

def yaxis
  @yaxis
end

Instance Method Details

#add_axis_title(axis, title) ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 163

def add_axis_title(axis, title)
  axis.title            = title.text
  axis.titleTextStyle   = title.text_style
  axis.titleOffset      = title.style.offset
end

#add_chart_title(title) ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 157

def add_chart_title(title)
  @graph.title                      = title.text
  @graph.titleTextStyle             = title.text_style
  @graph.titlePlotAreaFrameAnchor   = title.position
end

#add_legend ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 169

def add_legend
  @graph.legend               = @legend.cpt_legend(@graph)
  @graph.legendAnchor         = @legend.position
  @graph.legendDisplacement   = @legend.displacement
end

#add_plot_space ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 133

def add_plot_space
  @plot_space                       = @graph.defaultPlotSpace
  @plot_space.delegate              = self
  @plot_space.allowsUserInteraction = true
end

#add_plot_symbol(plot, symbol) ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 139

def add_plot_symbol(plot, symbol)
  plot.plotSymbol                       = symbol
  plot.plotSymbolMarginForHitDetection  = 5.0
end

#add_xy_range ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 144

def add_xy_range
  return if(not @axes[:x].enabled? and not @axes[:y].enabled?)
  @plot_space.scaleToFitPlots(@plots)
  x_range = @plot_space.xRange.mutableCopy
  y_range = @plot_space.yRange.mutableCopy

  x_range.expandRangeByFactor(CPTDecimalFromDouble(1.03))
  y_range.expandRangeByFactor(CPTDecimalFromDouble(1.03))

  @plot_space.xRange = x_range
  @plot_space.yRange = y_range
end

#bootstrap(options) ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 8

def bootstrap(options)
  options.each_pair {|key, value|
    send("#{key}=", value) if(respond_to?("#{key}="))
  }

  if(options[:title])
    @title = Title.new(options[:title])
  end

  @axes = {}
  if(options[:xAxis])
    @axes[:x] = Axis.new(options[:xAxis].merge(type: 'xaxis'))
  else
    @axes[:x] = Axis.new(type: 'xaxis', enabled: false)
  end

  if(options[:yAxis])
    @axes[:y] = Axis.new(options[:yAxis].merge(type: 'yaxis'))
  else
    @axes[:y] = Axis.new(type: 'yaxis', enabled: false)
  end

  if(@plot_options)
    @plot_options = PlotOptions.new(@plot_options)
  end

  @series = {}
  series = options[:series]
  series && series.each_with_index {|hash, index|
    hash.reverse_merge!({
      index: index, 
      defaults: default_style, 
      plot_options: @plot_options, 
      type: self.plot_type,
      plot_symbol: (@plot_symbol ? options[:plot_symbol] : nil)
    })
    @series[hash[:name]] = Series.new(hash)
  }

  if(options[:legend])
    @legend = Legend.new(options[:legend])
  end

  if(options[:data_label])
    @data_label = DataLabel.new(options[:data_label])
  end

  @plots = []
end

#default_padding ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 175

def default_padding
  @graph.plotAreaFrame.masksToBorder    = false
  @graph.plotAreaFrame.borderLineStyle  = nil
  @graph.plotAreaFrame.paddingLeft      = 50.0
  @graph.plotAreaFrame.paddingTop       = 10.0
  @graph.plotAreaFrame.paddingRight     = 20.0
  @graph.plotAreaFrame.paddingBottom    = 20.0


  @graph.paddingLeft                    = 5.0
  @graph.paddingRight                   = 0.0
  @graph.paddingTop                     = 10.0
  @graph.paddingBottom                  = 10.0
end

#initWithOptions(options, containerView: container) ⇒ Object 



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# File 'lib/motion-plot/chart/base.rb', line 58

def initWithOptions(options, containerView:container)
  bootstrap(options)

  @layer_hosting_view = CPTGraphHostingView.alloc.initWithFrame([[0, 0], [container.frame.size.width, container.frame.size.height]])

  bounds = @layer_hosting_view.bounds

  # create and assign chart to the hosting view.
  @graph = CPTXYGraph.alloc.initWithFrame(bounds)
  @layer_hosting_view.hostedGraph = @graph

  add_chart_title(@title) if(@title)

  @graph.applyTheme(@theme || Theme.default)

  default_padding
  
  @chart_layers                         = [NSNumber.numberWithInt(CPTGraphLayerTypePlots), NSNumber.numberWithInt(CPTGraphLayerTypeMajorGridLines), NSNumber.numberWithInt(CPTGraphLayerTypeMinorGridLines), NSNumber.numberWithInt(CPTGraphLayerTypeAxisLines), NSNumber.numberWithInt(CPTGraphLayerTypeAxisLabels), NSNumber.numberWithInt(CPTGraphLayerTypeAxisTitles)]
  @graph.topDownLayerOrder              = @chart_layers
  
  
  # add plot space
  add_plot_space

  @major_grid_line_style            = CPTMutableLineStyle.lineStyle
  @major_grid_line_style.lineWidth  = 0.75
  @major_grid_line_style.lineColor  = CPTColor.grayColor.colorWithAlphaComponent(0.25)

  axisSet                           = @graph.axisSet

  # Setting up x-axis
  if(@axes[:x].enabled?)
    axis                          = @axes[:x]
    @xaxis                        = axisSet.xAxis
    @xaxis.majorGridLineStyle     = @major_grid_line_style
    @xaxis.minorTicksPerInterval  = 1

    add_axis_title(@xaxis, axis.title)

    if(axis.labels)
      labels = axis.labels.each_with_index.map do |l, i|
        @xaxis.labelingPolicy = CPTAxisLabelingPolicyNone
        label                 = CPTAxisLabel.alloc.initWithText(l, textStyle: axis.text_style)
        label.tickLocation    = CPTDecimalFromInt(i)
        label.offset          = 3.0
        label  
      end

      @xaxis.axisLabels = NSSet.setWithArray(labels)  
    end
  end

  # Setting up y-axis
  if(@axes[:y].enabled?)
    @yaxis                            = axisSet.yAxis
    @yaxis.majorGridLineStyle         = @major_grid_line_style
    @yaxis.minorTicksPerInterval      = 1
    @yaxis.labelingPolicy             = CPTAxisLabelingPolicyAutomatic

    axis = @axes[:y]
    add_axis_title(@yaxis, axis.title)
    @yaxis.setLabelTextStyle(axis.text_style)
  end

  @graph.axisSet = nil if(not @axes[:x].enabled? and not @axes[:y].enabled?)

  add_series

  add_legend if(@legend.enabled?)

  add_xy_range

  @layer_hosting_view
end