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group.rb.html
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<!DOCTYPE public PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta name="generator" content="ex2html.rb" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="css/popup.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github.min.css" />
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<script>
hljs.configure({ cssSelector: "pre" });
hljs.highlightAll();
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<title>RMagick example: group.rb</title>
</head>
<body>
<h1>group.rb</h1>
<div class="bodybox">
<div class="bodyfloat">
<pre class="language-ruby">
# frozen_string_literal: true
require 'rvg/rvg'
Magick::RVG.dpi = 90
rvg = Magick::RVG.new(6.cm, 4.cm).viewbox(0, 0, 600, 400) do |canvas|
canvas.background_fill = 'white'
canvas.rect(595, 395, 1, 1).styles(stroke: 'blue', fill: 'none', stroke_width: 2)
# Define a stick figure.
stick = Magick::RVG::Group.new.styles(stroke: 'black', fill: 'none', stroke_width: 6) do |fig|
fig.circle(42, 50, 50).styles(stroke: 'red')
fig.polyline(30, 40, 50, 40, 45, 60, 50, 40, 65, 40).styles(stroke_width: 4)
fig.polyline(10, 100, 50, 130, 90, 100)
fig.line(50, 97, 50, 155)
fig.polyline(10, 200, 50, 155, 90, 200)
end
# Draw 12 copies.
2.times do |y|
6.times do |x|
canvas.use(stick, x * 100, y * 200)
end
end
end
rvg.draw.write('group.gif')
</pre>
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