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initial_coords.rb.html
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initial_coords.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" />
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<title>RMagick example: initial_coords.rb</title>
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<body>
<h1>initial_coords.rb</h1>
<div class="bodybox">
<div class="bodyfloat">
<pre class="language-ruby">
# frozen_string_literal: true
require 'rvg/rvg'
rvg = Magick::RVG.new(300, 100) do |canvas|
canvas.desc = "Example - SVG's initial coordinate system"
canvas.background_fill = 'white'
canvas.g.styles(fill: 'none', stroke: 'black', stroke_width: 3) do |grp|
grp.line(0, 1.5, 300, 1.5)
grp.line(1.5, 0, 1.5, 100)
end
canvas.g.styles(fill: 'red', stroke: 'none') do |grp|
grp.rect(3, 3)
grp.rect(3, 3, 297, 0)
grp.rect(3, 3, 0, 97)
end
canvas.g.styles(font_size: 14, font_family: 'Verdana', font_weight: 'normal', font_style: 'normal') do |grp|
grp.text(10, 20, '(0,0)')
grp.text(240, 20, '(300,0)')
grp.text(10, 90, '(0,100)')
end
end
rvg.draw.write('initial_coords.gif')
</pre>
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