forked from johannesgerer/jburkardt-f
-
Notifications
You must be signed in to change notification settings - Fork 2
/
obj_io.html
263 lines (231 loc) · 6.78 KB
/
obj_io.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
<html>
<head>
<title>
OBJ_IO - Read and Write Routines for Alias OBJ 3D Graphics Files
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
OBJ_IO <br> Read and Write Routines <br> Alias OBJ 3D Graphics Files
</h1>
<hr>
<p>
<b>OBJ_IO</b>
is a FORTRAN90 library which
reads or writes some of the 3D graphics
information stored in an Alias OBJ file.
</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>OBJ_IO</b> is available in
<a href = "../../cpp_src/obj_io/obj_io.html">a C++ version</a> and
<a href = "../../f_src/obj_io/obj_io.html">a FORTRAN90 version</a> and
<a href = "../../m_src/obj_io/obj_io.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../cpp_src/ivcon/ivcon.html">
IVCON</a>,
a C++ program which
can convert graphics information between STLA and other formats.
</p>
<p>
<a href = "../../f_src/ivread/ivread.html">
IVREAD</a>,
a FORTRAN90 program which
can convert graphics information between STLA and other formats.
</p>
<p>
<a href = "../../data/obj/obj.html">
OBJ</a>,
a data directory which
has some examples of OBJ files.
</p>
<p>
<a href = "../../c_src/obj_to_ply/obj_to_ply.html">
OBJ_TO_PLY</a>,
a C program which
reads an OBJ file and writes similar information to a PLY file.
</p>
<p>
<a href = "../../m_src/obj_to_tri_surface/obj_to_tri_surface.html">
OBJ_TO_TRI_SURFACE</a>,
a MATLAB program which
reads an OBJ file and extracts the surface mesh data as a
TRI_SURFACE dataset.
</p>
<p>
<a href = "../../pl_src/obj2opengl/obj2opengl.html">
OBJ2OPENGL</a>,
a PERL script which
converts an OBJ file to a C/C++ include file appropriate for use with OpenGL.
</p>
<p>
<a href = "../../c_src/ply_to_obj/ply_to_obj.html">
PLY_TO_OBJ</a>,
a C program which
reads a PLY 3D graphics file and writes an equivalent OBJ graphics file.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
<a href = "http://www.alias.com/eng/index.shtml">
http://www.alias.com/eng/index.shtml</a>,
The Alias web site.
</li>
<li>
<a href = "../../txt/obj_format.txt">obj_format.txt</a>,
some information about the OBJ format.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "obj_io.f90">obj_io.f90</a>, the source code.
</li>
<li>
<a href = "obj_io.sh">obj_io.sh</a>,
commands to compile the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "obj_io_prb.f90">obj_io_prb.f90</a>,
a sample calling program.
</li>
<li>
<a href = "obj_io_prb.sh">obj_io_prb.sh</a>,
commands to compile and run the sample program.
</li>
<li>
<a href = "../../data/obj/cube.obj">cube.obj</a>,
a simple OBJ file that describes a cube.
</li>
<li>
<a href = "cube_no_normals.obj">cube_no_normals.obj</a>,
an OBJ file describing a cube, without normal vectors,
written by OBJ_WRITE.
</li>
<li>
<a href = "cube_normals.obj">cube_normals.obj</a>,
an OBJ file describing a cube, including normal vectors,
written by OBJ_WRITE.
</li>
<li>
<a href = "obj_io_prb_output.txt">obj_io_prb_output.txt</a>,
the output file.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>CH_CAP</b> capitalizes a single character.
</li>
<li>
<b>CH_EQI</b> is a case insensitive comparison of two characters for equality.
</li>
<li>
<b>CH_IS_CONTROL</b> is TRUE if C is a control character.
</li>
<li>
<b>CH_TO_DIGIT</b> returns the integer value of a base 10 digit.
</li>
<li>
<b>GET_UNIT</b> returns a free FORTRAN unit number.
</li>
<li>
<b>OBJ_FACE_NODE_PRINT</b> prints the node indices for each face.
</li>
<li>
<b>OBJ_NORMAL_VECTOR_PRINT</b> prints the normal vectors.
</li>
<li>
<b>OBJ_NODE_XYZ_PRINT</b> prints the node coordinates.
</li>
<li>
<b>OBJ_READ</b> reads graphics information from a Wavefront OBJ file.
</li>
<li>
<b>OBJ_SIZE</b> determines sizes of graphics objects in an Alias OBJ file.
</li>
<li>
<b>OBJ_SIZE_PRINT</b> prints sizes associated with an OBJ file.
</li>
<li>
<b>OBJ_VERTEX_NORMAL_PRINT</b> prints the normal vectors indices per vertex.
</li>
<li>
<b>OBJ_WRITE</b> writes graphics information to an Alias OBJ file.
</li>
<li>
<b>R8VEC_CROSS_3D</b> computes the cross product of two vectors in 3D.
</li>
<li>
<b>S_BLANK_DELETE</b> removes blanks from a string, left justifying the remainder.
</li>
<li>
<b>S_BLANKS_DELETE</b> replaces consecutive blanks by one blank.
</li>
<li>
<b>S_CAT</b> concatenates two strings to make a third string.
</li>
<li>
<b>S_CONTROL_BLANK</b> replaces control characters with blanks.
</li>
<li>
<b>S_EQI</b> is a case insensitive comparison of two strings for equality.
</li>
<li>
<b>S_TO_I4</b> reads an I4 from a string.
</li>
<li>
<b>S_TO_R8</b> reads an R8 from a string.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
<li>
<b>WORD_NEXT_READ</b> "reads" words from a string, one at a time.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../f_src.html">
the FORTRAN90 source codes</a>.
</p>
<hr>
<i>
Last revised on 26 September 2008.
</i>
<!-- John Burkardt -->
</body>
<!-- Initial HTML skeleton created by HTMLINDEX. -->
</html>