Sha256: 37f08afef977474f306328f1a2c4a0a24eec57a981267f5215ab0969c8d09d08
Contents?: true
Size: 944 Bytes
Versions: 11
Compression:
Stored size: 944 Bytes
Contents
require 'ziya/maps/support/base'
require 'color'
module Ziya::Maps::Support
class HeatRange < Base
has_attribute :base_color, :min, :max, :step, :color_step, :color_method
def flatten( xml )
ranges = compute_ranges
ranges.each_pair do |range, color|
xml.state( :id => 'range' ) do
xml.data( range )
xml.color( color )
end
end
end
# -------------------------------------------------------------------------
private
# Compute heat color ranges
def compute_ranges
ranges = {}
color = Color::RGB.from_html( base_color )
current = min
while current < max do
ranges["#{current} - #{current+step-1}" ] = color.html.gsub( /#/, '' )
color = color.send( color_method || :darken_by, color_step )
current += step
end
ranges
end
end
end
Version data entries
11 entries across 11 versions & 2 rubygems