Class: Ziya::Gauges::Support::RadialTicks

Inherits:
RadialBase show all
Defined in:
lib/ziya/gauges/support/radial_ticks.rb

Instance Method Summary collapse

Methods inherited from Base

#to_comp_yaml

Methods included from YamlHelpers::Gauges

#dial, #dials, #gauge

Methods included from YamlHelpers::Base

#clazz, #indent

Methods inherited from Charts::Support::Base

#==, attributes, #attributes_for, #configured?, has_attribute, #has_sub_components, #initialize, #merge, #options, #options_as_string

Constructor Details

This class inherits a constructor from Ziya::Charts::Support::Base

Instance Method Details

#flatten(xml) ⇒ Object

overrides flatten to generate a series of radial tick marks



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# File 'lib/ziya/gauges/support/radial_ticks.rb', line 13

def flatten( xml )
  i = start_angle   
  while( i <= end_angle ) do
    angle = deg2rad( i )
    hash = { :x1        => (x + Math::sin( angle ) * radius).to_i,
             :y1        => (y - Math::cos( angle ) * radius).to_i,
             :x2        => (x + Math::sin( angle ) * (radius + length)).to_i,
             :y2        => (y - Math::cos( angle ) * (radius + length)).to_i,
             :thickness => thickness,
             :color     => color }
    xml.line( hash )
    i += (end_angle-start_angle)/(ticks-1)
  end
end