Class: PDF::Charts::StdDev::Scale

Inherits:
Object
  • Object
show all
Defined in:
lib/pdf/charts/stddev.rb

Overview

The scale of the dataset.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = { }) {|_self| ... } ⇒ Scale

Returns a new instance of Scale.

Yields:

  • (_self)

Yield Parameters:

Raises:



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# File 'lib/pdf/charts/stddev.rb', line 51

def initialize(args = { })
  @range        = args[:range]
  @step         = args[:step]
  @style        = args[:style]
  @show_labels  = false

  yield self if block_given?

  raise TypeError, PDF::Lange[:charts_stddev_scale_norange] if @range.nil?
  raise TypeError, PDF::Lange[:charts_stddev_scale_nostep] if @step.nil?
end

Instance Attribute Details

#first ⇒ Object

:nodoc:



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# File 'lib/pdf/charts/stddev.rb', line 67

def first
  @first
end

#label ⇒ Object

Defines the label options.



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# File 'lib/pdf/charts/stddev.rb', line 93

def label
  @label
end

#last ⇒ Object

:nodoc:



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# File 'lib/pdf/charts/stddev.rb', line 76

def last
  @last
end

#range ⇒ Object

Range of the scale. This should be a Range object.



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# File 'lib/pdf/charts/stddev.rb', line 64

def range
  @range
end

#show_labels ⇒ Object

Shows the scale labels if true.



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# File 'lib/pdf/charts/stddev.rb', line 91

def show_labels
  @show_labels
end

#step ⇒ Object

Defines the step of the scale. Each step represents a vertical position on the chart.



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# File 'lib/pdf/charts/stddev.rb', line 85

def step
  @step
end

#style ⇒ Object

Defines the line style for the scale on the chart. If this is unset (+nil+), there will be no horizontal marks across the chart for the steps of the scale.



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# File 'lib/pdf/charts/stddev.rb', line 89

def style
  @style
end