Sha256: 7fd5992467a8ca0e958143a8e6766ea099c95c303d294821701a65551eb9a024
Contents?: true
Size: 1.2 KB
Versions: 13
Compression:
Stored size: 1.2 KB
Contents
#!/usr/bin/env ruby -w
require 'rmagick'
img = Magick::Image.new(200,200) { self.background_color = '#ffffcc' }
# Draw a blue circle.
gc = Magick::Draw.new
gc.stroke_width(5)
gc.stroke('blue')
gc.fill_opacity(0)
gc.circle(100,100, 100,150)
gc.draw(img)
# Get the bounding box. Use the values to draw
# a gray square surrounding the circle. Highlight
# the corners with tiny red circles.
bb = img.bounding_box
gc = Magick::Draw.new
gc.stroke('gray50')
gc.fill_opacity(0)
gc.rectangle(bb.x, bb.y, bb.x+bb.width, bb.y+bb.height)
gc.stroke('red')
gc.circle(bb.x, bb.y, bb.x+2, bb.y+2)
gc.circle(bb.x+bb.width, bb.y, bb.x+bb.width+2, bb.y+2)
gc.circle(bb.x, bb.y+bb.height, bb.x+2, bb.y+bb.height+2)
gc.circle(bb.x+bb.width, bb.y+bb.height, bb.x+bb.width+2, bb.y+bb.height+2)
gc.fill('black')
gc.stroke('transparent')
gc.font_weight(Magick::NormalWeight)
gc.font_style(Magick::NormalStyle)
gc.pointsize(9)
gc.text(bb.x-15, bb.y-5, "\'#{bb.x},#{bb.y}\'")
gc.text(bb.x+bb.width-15, bb.y-5, "\'#{bb.x+bb.width},#{bb.y}\'")
gc.text(bb.x-15, bb.y+bb.height+15, "\'#{bb.x},#{bb.y+bb.height}\'")
gc.text(bb.x+bb.width-15, bb.y+bb.height+15, "\'#{bb.x+bb.width},#{bb.y+bb.height}\'")
gc.draw(img)
img.write('bounding_box.gif')
exit
Version data entries
13 entries across 13 versions & 3 rubygems