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ellipse01.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">
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<title>RMagick example: ellipse01.rb</title>
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<h1>ellipse01.rb</h1>
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<pre class="language-ruby">
# frozen_string_literal: true
require 'rvg/rvg'
Magick::RVG.dpi = 90
rvg = Magick::RVG.new(12.cm, 4.cm).viewbox(0, 0, 1200, 400) do |canvas|
canvas.background_fill = 'white'
canvas.desc = 'Example ellipse01 - examples of ellipses'
# Show outline of canvas using rect method
canvas.rect(1195, 395, 1, 1).styles(fill: 'none', stroke: 'blue', stroke_width: 2)
canvas.g.translate(300, 200) do |grp|
grp.ellipse(250, 100).styles(fill: 'red')
end
canvas.g.translate(900, 200).rotate(-30) do |grp|
grp.ellipse(250, 100).styles(fill: 'none', stroke: 'blue', stroke_width: 20)
end
end
rvg.draw.write('ellipse01.gif')
</pre>
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