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Contents
# -----------------------------------------------------------------------------
# Draws a set of numbers in a circular layout
#
# BOZO !! use components to render ??
#
# Author:: Fernand Galiana
# -----------------------------------------------------------------------------
require 'ziya/gauges/support/radial_base'
module Ziya::Gauges::Support
class RadialNumbers < RadialBase
has_attribute :start_num, :end_num,
:font, :size, :bold, :width, :height, :align
# overrides flatten to generate a series of radial tick marks
def flatten( xml )
number = start_num
i = start_angle
while( i <= end_angle ) do
angle = deg2rad( i )
hash = { :x => (x + Math::sin( angle ) * radius).to_i,
:y => (y - Math::cos( angle ) * radius).to_i,
:width => width || 20,
:height => height || 20,
:font => font || "Arial",
:size => size || 10,
:bold => bold || true,
:alpha => alpha,
:rotation => i,
:align => align || "left",
:color => color }
xml.text( hash ) do
xml.text! number.to_s
end
i += (end_angle-start_angle)/(ticks-1)
number += (end_num-start_num)/(ticks-1)
end
end
end
end
Version data entries
11 entries across 11 versions & 2 rubygems