-
Notifications
You must be signed in to change notification settings - Fork 2
/
line.rb.html
68 lines (59 loc) · 1.8 KB
/
line.rb.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
<!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" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
<script>
hljs.configure({ cssSelector: "pre" });
hljs.highlightAll();
</script>
<title>RMagick example: line.rb</title>
</head>
<body>
<h1>line.rb</h1>
<div class="bodybox">
<div class="bodyfloat">
<pre class="language-ruby">
# frozen_string_literal: true
require 'rmagick'
imgl = Magick::ImageList.new
imgl.new_image(250, 250, Magick::HatchFill.new('white', 'LightCyan2'))
gc = Magick::Draw.new
gc.stroke_linejoin('round')
# Draw 3 lines in 3 colors.
# Make each line 2 pixels wide.
gc.stroke('red')
gc.stroke_width(3)
gc.line(50, 50, 50, 200)
gc.stroke('blue')
gc.line(50, 200, 200, 200)
gc.stroke('green')
gc.line(200, 200, 50, 50)
# Identify the endpoints with gray circles
gc.stroke('gray50')
gc.stroke_width(1)
gc.fill_opacity(0)
gc.circle(50, 50, 53, 53)
gc.circle(50, 200, 53, 203)
gc.circle(200, 200, 203, 203)
# Annotate the endpoints
gc.font_weight(Magick::NormalWeight)
gc.font_style(Magick::NormalStyle)
gc.fill('black')
gc.fill_opacity(1)
gc.stroke('transparent')
gc.text(30, 40, "'50,50'")
gc.text(30, 220, "'50,200'")
gc.text(180, 220, "'200,200'")
gc.draw(imgl)
imgl.border!(1, 1, 'LightCyan2')
imgl.write('line.gif')
</pre>
</div>
</div>
<div id="close"><a href="javascript:window.close();">Close window</a></div>
</body>
</html>