Sha256: 5e90414d3fc3bb249a33e849be627f5167d7b26429a5b8689f7358037f56fd00
Contents?: true
Size: 876 Bytes
Versions: 6
Compression:
Stored size: 876 Bytes
Contents
#!/usr/bin/env ruby -w
require 'rmagick'
imgl = Magick::ImageList.new
imgl.new_image(200, 200, Magick::HatchFill.new('white', 'lightcyan2'))
gc = Magick::Draw.new
# Move the origin to the center.
gc.translate(100, 100)
max_x = imgl.columns / 2
max_y = imgl.rows / 2
# Rotate 45 degrees
gc.rotate(45)
gc.stroke('red')
gc.stroke_width(3)
# Draw down-pointing arrow
gc.line(0, -max_y, 0, max_y)
gc.line(0, max_y, 10, max_y - 10)
gc.line(0, max_y, -10, max_y - 10)
# Draw right-pointing arrow
gc.line(-max_x, 0, max_x, 0)
gc.line(max_x, 0, max_x - 10, -10)
gc.line(max_x, 0, max_x - 10, 10)
# Add labels
gc.font_weight(Magick::NormalWeight)
gc.font_style(Magick::NormalStyle)
gc.fill('black')
gc.stroke('transparent')
gc.text(8, 15, "'0,0'")
gc.text(110, 16, 'x')
gc.text(12, 115, 'y')
gc.draw(imgl)
imgl.border!(1, 1, 'lightcyan2')
imgl.write('rotate.gif')
Version data entries
6 entries across 6 versions & 1 rubygems