forked from johannesgerer/jburkardt-cpp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcaustic_opengl.html
375 lines (324 loc) · 9.76 KB
/
caustic_opengl.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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
<html>
<head>
<title>
CAUSTIC_OPENGL - Display a Caustic using OpenGL
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
CAUSTIC_OPENGL <br> Display a Caustic using OpenGL
</h1>
<hr>
<p>
<b>CAUSTIC_OPENGL</b>
is a C++ program which
computes a caustic curve based on user input, and uses OpenGL to display it.
</p>
<p>
The user specifies a value <b>Q</b>, the number of points, a value <b>P</b>
which controls which points will be connected, and values <b>A</b> and <b>B</b>
which determine the curve on which the points lie.
</p>
<p>
The program then plots <b>Q</b> points along the curve
<blockquote>
x(I) = cos ( A * 2 * i * pi / Q )<br>
y(I) = sin ( B * 2 * i * pi / Q )
</blockquote>
and connects each point <b>I</b> to point <b>I+P</b>, using
modular arithmetic where necessary.
</p>
<h3 align = "center">
Usage:
</h3>
<p>
<blockquote>
<b>caustic_opengl</b> <i>q</i> <i>p</i> <i>a</i> <i>b</i>
</blockquote>
where
<ul>
<li>
<i>q</i> is the number of points to plot;
</li>
<li>
<i>p</i> is the point to which point 0 is connected.
</li>
<li>
<i>a</i> defines x(i)=cos(a*2*pi*i/q);
</li
<li>
<i>b</i> defines y(i)=sin(b*2*pi*i/q).
</li>
</ul>
</p>
<h3 align = "center">
OpenGL on Macintosh OS X
</h3>
<p>
<b>OpenGL</b> ships with OSX for the Macintosh. You can obtain
the latest software version on
<a href = "http://www.apple.com/opengl/">the Apple OpenGL web site</a>.
</p>
<p>
Note that this source code and compilation script have been adapted for
use on a Macintosh running OSX.
</p>
<p>
For that reason, the include file references have been changed from:
<pre><code>
# include <GL/glut.h>
</code></pre>
to:
<pre><code>
# include <GLUT/glut.h>
</code></pre>
</p>
<p>
The compilation statement, which might ordinarily be
<pre><code>
g++ caustic_opengl.C -m -lGL -lGLU -lglut
</code></pre>
was modified to:
<pre><code>
g++ caustic_opengl.C -m -framework OpenGL -framework GLUT
</code></pre>
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>CAUSTIC_OPENGL</b> is available in
<a href = "../../cpp_src/caustic_opengl/caustic_opengl.html">a C++ version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../cpp_src/fern_opengl/fern_opengl.html">
FERN_OPENGL</a>,
a C++ program which
uses OpenGL to display the Barnsley fractal fern.
</p>
<p>
<a href = "../../c_src/flood_opengl/flood_opengl.html">
FLOOD_OPENGL</a>,
a C program which
allows a user to select a region and flood it with color,
using OpenGL, by Art Wetzel.
</p>
<p>
<a href = "../../c_src/life_opengl/life_opengl.html">
LIFE_OPENGL</a>,
a C program which
simulates a version of John Conway's "Game of Life", displaying the
results using OpenGL.
</p>
<p>
<a href = "../../cpp_src/lights_out_opengl/lights_out_opengl.html">
LIGHTS_OUT_OPENGL</a>,
a C++ program which
sets up a "Lights Out" game and allows the user to solve it,
using the OpenGL graphics window.
</p>
<p>
<a href = "../../cpp_src/lissajous_opengl/lissajous_opengl.html">
LISSAJOUS_OPENGL</a>,
a C++ program which
computes a Lissajous figure and displays it using OpenGL.
</p>
<p>
<a href = "../../cpp_src/opengl/opengl.html">
OPENGL</a>,
C++ programs which
illustrate the use of the OpenGL graphics library;
</p>
<p>
<a href = "../../pl_src/obj2opengl/obj2opengl.html">
OBJ2OPENGL</a>,
a PERL script which
converts OBJ files of 3D data
into C include files, which can then be used in an <b>OpenGL</b>
program to display the object.
</p>
<p>
<a href = "../../cpp_src/polygonal_surface_display_opengl/polygonal_surface_display_opengl.html">
POLYGONAL_SURFACE_DISPLAY_OPENGL</a>,
a C++ program which
displays a surface in 3D described as a set of polygons, using OpenGL.
</p>
<p>
<a href = "../../cpp_src/rotating_cube_display_opengl/rotating_cube_display_opengl.html">
ROTATING_CUBE_DISPLAY_OPENGL</a>,
a C++ program which
displays a rotating color cube in 3D, using OpenGL;
</p>
<p>
<a href = "../../data/ppma/ppma.html">
PPMA</a>,
a data directory which
describes the ASCII Portable Pixelmap format,
which is a possible means of storing the
graphics information displayed by <b>OpenGL</b>. One of the example
programs shows how this can be done.
</p>
<p>
<a href = "../../cpp_src/sphere_xyz_display_opengl/sphere_xyz_display_opengl.html">
SPHERE_XYZ_DISPLAY_OPENGL</a>,
a C++ program which
reads XYZ information defining points in 3D,
and displays a unit sphere and the points, using OpenGL.
</p>
<p>
<a href = "../../cpp_src/tet_mesh_display_opengl/tet_mesh_display_opengl.html">
TET_MESH_DISPLAY_OPENGL</a>,
a C++ program which
reads a pair of files defining
a tetrahedral mesh and displays an image using OpenGL.
</p>
<p>
<a href = "../../cpp_src/tri_surface_display_opengl/tri_surface_display_opengl.html">
TRI_SURFACE_DISPLAY_OPENGL</a>,
a C++ program which
displays the 3D graphics information
in a TRI_SURFACE file using OpenGL.
</p>
<p>
<a href = "../../cpp_src/triangulation_display_opengl/triangulation_display_opengl.html">
TRIANGULATION_DISPLAY_OPENGL</a>,
a C++ program which
reads a pair of files defining
a triangulation and displays an image using OpenGL.
</p>
<p>
<a href = "../../cpp_src/xy_display_opengl/xy_display_opengl.html">
XY_DISPLAY_OPENGL</a>,
a C++ program which
reads an XY file of 2D point coordinates, and displays
an image of those points using OpenGL.
</p>
<p>
<a href = "../../cpp_src/xyl_display_opengl/xyl_display_opengl.html">
XYL_DISPLAY_OPENGL</a>,
a C++ program which
reads XYL information defining points and lines in 2D, and displays
an image using OpenGL.
</p>
<p>
<a href = "../../cpp_src/xyz_display_opengl/xyz_display_opengl.html">
XYZ_DISPLAY_OPENGL</a>,
a C++ program which
reads an XYZ file of 3D point coordinates, and displays
an image of those points using OpenGL.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Edward Angel,<br>
Interactive Computer Graphics,
a Top-Down Approach with OpenGL,<br>
Addison-Wesley, 2000,<br>
ISBN: 0-201-38597-X,<br>
LC: T385.A514.
</li>
<li>
Renate Kempf, Chris Frazier, editors,<br>
OpenGL Reference Manual,<br>
Fourth Edition,<br>
Addison-Wesley, 2004,<br>
ISBN: 032117383X,<br>
LC: T385.O642.
</li>
<li>
Mason Woo, Jackie Neider, Tom Davis,<br>
OpenGL Programming Guide,<br>
Addison-Wesley, 1997,<br>
ISBN: 0-201-46138-2,<br>
LC: T385.N435.
</li>
<li>
Richard Wright, Michael Sweet,<br>
OpenGL Superbible,<br>
Third Edition,<br>
Sams, 2004,<br>
ISBN: 0672326019,<br>
LC: T385.W73.
</li>
<li>
<a href = "http://www.opengl.org/">
http://www.opengl.org/ </a> <br>
The official OpenGL site.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "caustic_opengl.cpp">caustic_opengl.cpp</a>, the source code.
</li>
<li>
<a href = "caustic_opengl.sh">caustic_opengl.sh</a>,
commands to compile the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "caustic_100_19_2_3.png">caustic_100_19_2_3.png</a>,
the output from "caustic_opengl 100 19 2 3".
</li>
<li>
<a href = "caustic_100_37_1_1.png">caustic_100_37_1_1.png</a>,
the output from "caustic_opengl 100 37 1 1".
</li>
<li>
<a href = "caustic_400_29_2_7.png">caustic_400_29_2_7.png</a>,
the output from "caustic_opengl 400 29 2 7".
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>MAIN</b> is the main program for the CAUSTIC_OPENGL program.
</li>
<li>
<b>DISPLAY</b> generates the graphics output.
</li>
<li>
<b>MYINIT</b> initializes OpenGL state variables dealing with viewing and attributes.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source codes</a>.
</p>
<hr>
<i>
Last revised on 20 October 2009.
</i>
<!-- John Burkardt -->
</body>
<!-- Initial HTML skeleton created by HTMLINDEX. -->
</html>