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Contents
#!/usr/bin/env ruby -w
#
# A RMagick version of Magick++/demo/gravity.cpp
#
require 'rmagick'
x = 100
y = 100
begin
pic = Magick::ImageList.new
lines = Magick::Draw.new
lines.stroke '#600'
lines.fill_opacity 0
lines.line 300,100, 300,500
lines.line 100,300, 500,300
lines.rectangle 100,100, 500,500
draw = Magick::Draw.new
draw.pointsize = 30
draw.fill = '#600'
draw.undercolor = 'red'
0.step(330, 30) do |angle|
puts "angle #{angle}"
pic.new_image(600, 600) { self.background_color = 'white' }
lines.draw pic
draw.annotate(pic, 0,0,x,y, 'NorthWest') do
self.gravity = Magick::NorthWestGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,0,y, 'North') do
self.gravity = Magick::NorthGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,x,y, 'NorthEast') do
self.gravity = Magick::NorthEastGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,x,0, 'East') do
self.gravity = Magick::EastGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,0,0, 'Center') do
self.gravity = Magick::CenterGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,x,y, 'SouthEast') do
self.gravity = Magick::SouthEastGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,0,y, 'South') do
self.gravity = Magick::SouthGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,x,y, 'SouthWest') do
self.gravity = Magick::SouthWestGravity
self.rotation = angle
end
draw.annotate(pic, 0,0,x,0, 'West') do
self.gravity = Magick::WestGravity
self.rotation = angle
end
end
puts "Writing image \"rm_gravity_out.miff\"..."
pic.delay = 20
pic.write './rm_gravity_out.miff'
rescue
puts "#{$ERROR_INFO} exception raised."
exit 1
end
exit 0
Version data entries
8 entries across 8 versions & 3 rubygems