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Contents
#! /usr/local/bin/ruby -w
require 'RMagick'
# Read the snake image file and scale to 200 pixels high.
begin
snake = Magick::ImageList.new("images/Snake.wmf")
snake.scale!(200.0/snake.rows)
# Read the coffee cup image and scale to 200 pixels high.
coffee = Magick::ImageList.new("images/Coffee.wmf")
coffee.scale!(200.0/coffee.rows)
# We want the "no" symbol to be a little smaller.
# Read and scale to 150 pixels high.
sign = Magick::ImageList.new("images/No.wmf")
sign.scale!(150.0/sign.rows)
# Change the white pixels in the sign to transparent.
sign = sign.matte_replace(0,0)
# Create a "nosnake" draw object. Add a composite
# primitive that composites the "no" symbol over
# the snake. Draw it.
nosnake = Magick::Draw.new
nosnake.composite((snake.columns-sign.columns)/2,
(snake.rows-sign.rows)/2, 0, 0, sign)
nosnake.draw(snake)
# Repeat for the coffee cup.
nocoffee = Magick::Draw.new
nocoffee.composite((coffee.columns-sign.columns)/2,
(coffee.columns-sign.columns)/2, 0, 0, sign)
nocoffee.draw(coffee)
coffee.write("drawcomp1.gif")
snake.write("drawcomp2.gif")
rescue Magick::ImageMagickError
puts "#{$0}: ImageMagickError - #{$!}"
end
exit
Version data entries
67 entries across 67 versions & 2 rubygems