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Contents
#! /usr/local/bin/ruby -w require 'RMagick' imgl = Magick::ImageList.new imgl.new_image(390, 240, Magick::HatchFill.new('white','lightcyan2')) gc = Magick::Draw.new # Draw path gc.fill_opacity 0 gc.stroke 'red' gc.stroke_width 3 gc.path "M20,120 C20,20 170,20 170,120 S320,220 320,120" # Annotate # Show end points gc.fill_opacity 0 gc.stroke 'gray50' gc.stroke_width 1 gc.circle 20,120, 23, 123 gc.circle 170,120, 173, 123 gc.circle 320,120, 323, 123 # Show control points gc.fill_opacity 1 gc.circle 20, 20, 23, 23 gc.circle 170, 20, 173, 23 gc.circle 320,220, 323, 223 # Show connector lines gc.line 20,120, 20, 20 gc.line 170, 20, 170,220 gc.line 320,220, 320,120 # Show auto control point gc.fill_opacity 0 gc.stroke 'blue' gc.stroke_width 3 gc.circle 170,220, 173,223 # Add labels gc.stroke "#000000ff" # unset stroke color gc.fill 'black' # Add end point labels gc.text 30,125, "'20,120'" gc.text 180,125, "'170,120'" gc.text 330,125, "'320,120'" # Add control point labels gc.text 30, 25, "'20,20'" gc.text 180, 25, "'170,20'" gc.text 330,225, "'320,320'" # Add auto control point label gc.text 180,225, "'auto ctl point'" gc.draw imgl imgl.border!(1,1, 'lightcyan2') imgl.write 'path.gif'
Version data entries
14 entries across 14 versions & 1 rubygems