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
|
/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2016 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
****************************************************************************/
#ifndef __VCGLIB_EXPORT_DXF
#define __VCGLIB_EXPORT_DXF
namespace vcg {
namespace tri {
namespace io {
template <class SaveMeshType>
/**
This class encapsulate a filter for save dxf meshes.
*/
class ExporterDXF
{
typedef typename SaveMeshType::CoordType CoordType;
public:
///Standard call for saving a mesh
static int Save(SaveMeshType &m, const char * filename)
{
if(m.fn==0 && m.en != 0) return SaveEdge(m,filename);
FILE * o = fopen(filename,"w");
if(o==NULL) return 1;
writeHeader(o, m);
fprintf(o,"0\n");
fprintf(o,"SECTION\n");
fprintf(o,"2\n");
fprintf(o,"ENTITIES\n");
typename SaveMeshType::FaceIterator fi;
for(fi=m.face.begin(); fi!=m.face.end(); ++fi)
{
if (!fi->IsD())
{
typename SaveMeshType::CoordType v0 = (*fi).V(0)->P();
typename SaveMeshType::CoordType v1 = (*fi).V(1)->P();
typename SaveMeshType::CoordType v2 = (*fi).V(2)->P();
fprintf(o,"0\n"); fprintf(o,"3DFACE\n"); fprintf(o,"8\n"); fprintf(o,"0\n");
fprintf(o,"10\n"); fprintf(o,"%f\n", v0[0]); //X
fprintf(o,"20\n"); fprintf(o,"%f\n", v0[1]); //Y
fprintf(o,"30\n"); fprintf(o,"%f\n", v0[2]); //Z
fprintf(o,"11\n"); fprintf(o,"%f\n", v1[0]); //X
fprintf(o,"21\n"); fprintf(o,"%f\n", v1[1]); //Y
fprintf(o,"31\n"); fprintf(o,"%f\n", v1[2]); //Z
fprintf(o,"12\n"); fprintf(o,"%f\n", v2[0]); //X
fprintf(o,"22\n"); fprintf(o,"%f\n", v2[1]); //Y
fprintf(o,"32\n"); fprintf(o,"%f\n", v2[2]); //Z
fprintf(o,"13\n"); fprintf(o,"%f\n", v2[0]); //X
fprintf(o,"23\n"); fprintf(o,"%f\n", v2[1]); //Y
fprintf(o,"33\n"); fprintf(o,"%f\n", v2[2]); //Z
}
}
fprintf(o,"0\n");
fprintf(o,"ENDSEC\n");
fprintf(o,"0\n");
fprintf(o,"EOF\n");
int result = 0;
if (ferror(o)) result = 2;
fclose(o);
return result;
}
/// Standard call for knowing the meaning of an error code
static const char *ErrorMsg(int error)
{
static std::vector<std::string> dxf_error_msg;
if (dxf_error_msg.empty())
{
dxf_error_msg.resize(3);
dxf_error_msg[0] = "No errors";
dxf_error_msg[1] = "Can't open file";
dxf_error_msg[2] = "Output Stream Error";
}
if (error>2 || error<0) return "Unknown error";
else return dxf_error_msg[error].c_str();
}
static bool SaveEdge(SaveMeshType &m, const char * filename)
{
FILE * o = fopen(filename,"w");
if(o==NULL) return 1;
writeHeader(o, m);
fprintf(o,"0\n");
fprintf(o,"SECTION\n");
fprintf(o,"2\n");
fprintf(o,"ENTITIES\n");
typename SaveMeshType::EdgeIterator ei;
for(ei=m.edge.begin(); ei!=m.edge.end();++ei)
{
CoordType p1 = (*ei).V(0)->P();
CoordType p2 = (*ei).V(1)->P();
fprintf(o,"0\n");
fprintf(o,"LINE\n");
fprintf(o,"8\n");
fprintf(o,"0\n");
fprintf(o,"10\n");
fprintf(o,"%f\n", p1[0]); //X
fprintf(o,"20\n");
fprintf(o,"%f\n", p1[1]); //Y
fprintf(o,"30\n");
fprintf(o,"%f\n", p1[2]); //Z
fprintf(o,"11\n");
fprintf(o,"%f\n", p2[0]); //X
fprintf(o,"21\n");
fprintf(o,"%f\n", p2[1]); //Y
fprintf(o,"31\n");
fprintf(o,"%f\n", p2[2]); //Z
}
fprintf(o,"0\n");
fprintf(o,"ENDSEC\n");
fprintf(o,"0\n");
fprintf(o,"EOF\n");
fclose(o);
return true;
}
static bool writeHeader(FILE* o, SaveMeshType &mp)
{
// standard DXF header
// most of data is meaningless, but required by a lot of importers
fprintf(o, "999\n");
fprintf(o, "DXF created by VCGLib\n");
fprintf(o, "0\n");
fprintf(o, "SECTION\n");
fprintf(o, "2\n");
fprintf(o, "HEADER\n");
// Version of the dxf specs, most reader need version 12 or above (AC1009)
fprintf(o, "9\n");
fprintf(o, "$ACADVER\n");
fprintf(o, "1\n");
fprintf(o, "AC1009\n");
// Insertion base set by BASE command (in WCS)
fprintf(o, "9\n");
fprintf(o, "$INSBASE\n");
fprintf(o, "10\n");
fprintf(o, "0.0\n");
fprintf(o, "20\n");
fprintf(o, "0.0\n");
fprintf(o, "30\n");
fprintf(o, "0.0\n");
// extents for draw space and line drawing...
// I will just use the data from the boundingbox (largest bbox value in all directions)
double emin = std::min(mp.bbox.min[0], std::min(mp.bbox.min[1], mp.bbox.min[2]));
double emax = std::max(mp.bbox.max[0], std::max(mp.bbox.max[1], mp.bbox.max[2]));
fprintf(o, "9\n");
fprintf(o, "$EXTMIN\n");
fprintf(o, "10\n");
fprintf(o, "%f\n",emin);
fprintf(o, "20\n");
fprintf(o, "%f\n",emin);
fprintf(o, "9\n");
fprintf(o, "$EXTMAX\n");
fprintf(o, "10\n");
fprintf(o, "%f\n", emax);
fprintf(o, "20\n");
fprintf(o, "%f\n", emax);
fprintf(o, "9\n");
fprintf(o, "$LINMIN\n");
fprintf(o, "10\n");
fprintf(o, "%f\n", emin);
fprintf(o, "20\n");
fprintf(o, "%f\n", emin);
fprintf(o, "9\n");
fprintf(o, "$LINMAX\n");
fprintf(o, "10\n");
fprintf(o, "%f\n", emax);
fprintf(o, "20\n");
fprintf(o, "%f\n", emax);
fprintf(o, "0\n");
fprintf(o, "ENDSEC\n");
return true;
}
}; // end class
} // end Namespace io
} // end Namespace tri
} // end Namespace vcg
#endif
|
