| OpenMesh

ImporterT.hh
1 /* ========================================================================= *
2 * *
3 * OpenMesh *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
6 * All rights reserved. *
7 * www.openmesh.org *
8 * *
9 *---------------------------------------------------------------------------*
10 * This file is part of OpenMesh. *
11 *---------------------------------------------------------------------------*
12 * *
13 * Redistribution and use in source and binary forms, with or without *
14 * modification, are permitted provided that the following conditions *
15 * are met: *
16 * *
17 * 1. Redistributions of source code must retain the above copyright notice, *
18 * this list of conditions and the following disclaimer. *
19 * *
20 * 2. Redistributions in binary form must reproduce the above copyright *
21 * notice, this list of conditions and the following disclaimer in the *
22 * documentation and/or other materials provided with the distribution. *
23 * *
24 * 3. Neither the name of the copyright holder nor the names of its *
25 * contributors may be used to endorse or promote products derived from *
26 * this software without specific prior written permission. *
27 * *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 * ========================================================================= */
41
42
43
44
45 //=============================================================================
46 //
47 // Implements an importer module for arbitrary OpenMesh meshes
48 //
49 //=============================================================================
50
51
52 #ifndef __IMPORTERT_HH__
53 #define __IMPORTERT_HH__
54
55
56 //=== INCLUDES ================================================================
57
58
59 #include <OpenMesh/Core/IO/importer/BaseImporter.hh>
60 #include <OpenMesh/Core/Utils/vector_cast.hh>
61 #include <OpenMesh/Core/Utils/color_cast.hh>
62 #include <OpenMesh/Core/Mesh/Attributes.hh>
63 #include <OpenMesh/Core/System/omstream.hh>
64
65
66 //== NAMESPACES ===============================================================
67
68
69 namespace OpenMesh {
70 namespace IO {
71
72
73 //=== IMPLEMENTATION ==========================================================
74
75
79 template <class Mesh>
80 class ImporterT : public BaseImporter
81 {
82 public:
83
84 typedef typename Mesh::Point Point;
85 typedef typename Mesh::Normal Normal;
86 typedef typename Mesh::Color Color;
87 typedef typename Mesh::TexCoord2D TexCoord2D;
88 typedef typename Mesh::TexCoord3D TexCoord3D;
89 typedef std::vector<VertexHandle> VHandles;
90
91
92 explicit ImporterT(Mesh& _mesh) : mesh_(_mesh), halfedgeNormals_() {}
93
94
95 virtual VertexHandle add_vertex(const Vec3f& _point) override
96 {
97 return mesh_.add_vertex(vector_cast<Point>(_point));
98 }
99
100 virtual VertexHandle add_vertex(const Vec3d& _point) override
101 {
102 return mesh_.add_vertex(vector_cast<Point>(_point));
103 }
104
105 virtual VertexHandle add_vertex() override
106 {
107 return mesh_.new_vertex();
108 }
109
110 virtual HalfedgeHandle add_edge(VertexHandle _vh0, VertexHandle _vh1) override
111 {
112 return mesh_.new_edge(_vh0, _vh1);
113 }
114
115 virtual FaceHandle add_face(const VHandles& _indices) override
116 {
117 FaceHandle fh;
118
119 if (_indices.size() > 2)
120 {
121 VHandles::const_iterator it, it2, end(_indices.end());
122
123
124 // test for valid vertex indices
125 for (it=_indices.begin(); it!=end; ++it)
126 if (! mesh_.is_valid_handle(*it))
127 {
128 omerr() << "ImporterT: Face contains invalid vertex index\n";
129 return fh;
130 }
131
132
133 // don't allow double vertices
134 for (it=_indices.begin(); it!=end; ++it)
135 for (it2=it+1; it2!=end; ++it2)
136 if (*it == *it2)
137 {
138 omerr() << "ImporterT: Face has equal vertices\n";
139 return fh;
140 }
141
142
143 // try to add face
144 fh = mesh_.add_face(_indices);
145 // separate non-manifold faces and mark them
146 if (!fh.is_valid())
147 {
148 VHandles vhandles(_indices.size());
149
150 // double vertices
151 for (unsigned int j=0; j<_indices.size(); ++j)
152 {
153 // DO STORE p, reference may not work since vertex array
154 // may be relocated after adding a new vertex !
155 Point p = mesh_.point(_indices[j]);
156 vhandles[j] = mesh_.add_vertex(p);
157
158 // Mark vertices of failed face as non-manifold
159 if (mesh_.has_vertex_status()) {
160 mesh_.status(vhandles[j]).set_fixed_nonmanifold(true);
161 }
162 }
163
164 // add face
165 fh = mesh_.add_face(vhandles);
166
167 // Mark failed face as non-manifold
168 if (mesh_.has_face_status())
169 mesh_.status(fh).set_fixed_nonmanifold(true);
170
171 // Mark edges of failed face as non-two-manifold
172 if (mesh_.has_edge_status()) {
173 typename Mesh::FaceEdgeIter fe_it = mesh_.fe_iter(fh);
174 for(; fe_it.is_valid(); ++fe_it) {
175 mesh_.status(*fe_it).set_fixed_nonmanifold(true);
176 }
177 }
178 }
179
180 //write the half edge normals
181 if (mesh_.has_halfedge_normals())
182 {
183 //iterate over all incoming haldedges of the added face
184 for (typename Mesh::FaceHalfedgeIter fh_iter = mesh_.fh_begin(fh);
185 fh_iter != mesh_.fh_end(fh); ++fh_iter)
186 {
187 //and write the normals to it
188 typename Mesh::HalfedgeHandle heh = *fh_iter;
189 typename Mesh::VertexHandle vh = mesh_.to_vertex_handle(heh);
190 typename std::map<VertexHandle,Normal>::iterator it_heNs = halfedgeNormals_.find(vh);
191 if (it_heNs != halfedgeNormals_.end())
192 mesh_.set_normal(heh,it_heNs->second);
193 }
194 halfedgeNormals_.clear();
195 }
196 }
197 return fh;
198 }
199
200 virtual FaceHandle add_face(HalfedgeHandle _heh) override
201 {
202 auto fh = mesh_.new_face();
203 mesh_.set_halfedge_handle(fh, _heh);
204 return fh;
205 }
206
207 // vertex attributes
208
209 virtual void set_point(VertexHandle _vh, const Vec3f& _point) override
210 {
211 mesh_.set_point(_vh,vector_cast<Point>(_point));
212 }
213
214 virtual void set_halfedge(VertexHandle _vh, HalfedgeHandle _heh) override
215 {
216 mesh_.set_halfedge_handle(_vh, _heh);
217 }
218
219 virtual void set_normal(VertexHandle _vh, const Vec3f& _normal) override
220 {
221 if (mesh_.has_vertex_normals())
222 mesh_.set_normal(_vh, vector_cast<Normal>(_normal));
223
224 //saves normals for half edges.
225 //they will be written, when the face is added
226 if (mesh_.has_halfedge_normals())
227 halfedgeNormals_[_vh] = vector_cast<Normal>(_normal);
228 }
229
230 virtual void set_normal(VertexHandle _vh, const Vec3d& _normal) override
231 {
232 if (mesh_.has_vertex_normals())
233 mesh_.set_normal(_vh, vector_cast<Normal>(_normal));
234
235 //saves normals for half edges.
236 //they will be written, when the face is added
237 if (mesh_.has_halfedge_normals())
238 halfedgeNormals_[_vh] = vector_cast<Normal>(_normal);
239 }
240
241 virtual void set_color(VertexHandle _vh, const Vec4uc& _color) override
242 {
243 if (mesh_.has_vertex_colors())
244 mesh_.set_color(_vh, color_cast<Color>(_color));
245 }
246
247 virtual void set_color(VertexHandle _vh, const Vec3uc& _color) override
248 {
249 if (mesh_.has_vertex_colors())
250 mesh_.set_color(_vh, color_cast<Color>(_color));
251 }
252
253 virtual void set_color(VertexHandle _vh, const Vec4f& _color) override
254 {
255 if (mesh_.has_vertex_colors())
256 mesh_.set_color(_vh, color_cast<Color>(_color));
257 }
258
259 virtual void set_color(VertexHandle _vh, const Vec3f& _color) override
260 {
261 if (mesh_.has_vertex_colors())
262 mesh_.set_color(_vh, color_cast<Color>(_color));
263 }
264
265 virtual void set_texcoord(VertexHandle _vh, const Vec2f& _texcoord) override
266 {
267 if (mesh_.has_vertex_texcoords2D())
268 mesh_.set_texcoord2D(_vh, vector_cast<TexCoord2D>(_texcoord));
269 }
270
271 virtual void set_status(VertexHandle _vh, const OpenMesh::Attributes::StatusInfo& _status) override
272 {
273 if (!mesh_.has_vertex_status())
274 mesh_.request_vertex_status();
275 mesh_.status(_vh) = _status;
276 }
277
278 virtual void set_next(HalfedgeHandle _heh, HalfedgeHandle _next) override
279 {
280 mesh_.set_next_halfedge_handle(_heh, _next);
281 }
282
283 virtual void set_face(HalfedgeHandle _heh, FaceHandle _fh) override
284 {
285 mesh_.set_face_handle(_heh, _fh);
286 }
287
288
289 virtual void set_texcoord(HalfedgeHandle _heh, const Vec2f& _texcoord) override
290 {
291 if (mesh_.has_halfedge_texcoords2D())
292 mesh_.set_texcoord2D(_heh, vector_cast<TexCoord2D>(_texcoord));
293 }
294
295 virtual void set_texcoord(VertexHandle _vh, const Vec3f& _texcoord) override
296 {
297 if (mesh_.has_vertex_texcoords3D())
298 mesh_.set_texcoord3D(_vh, vector_cast<TexCoord3D>(_texcoord));
299 }
300
301 virtual void set_texcoord(HalfedgeHandle _heh, const Vec3f& _texcoord) override
302 {
303 if (mesh_.has_halfedge_texcoords3D())
304 mesh_.set_texcoord3D(_heh, vector_cast<TexCoord3D>(_texcoord));
305 }
306
307 virtual void set_status(HalfedgeHandle _heh, const OpenMesh::Attributes::StatusInfo& _status) override
308 {
309 if (!mesh_.has_halfedge_status())
310 mesh_.request_halfedge_status();
311 mesh_.status(_heh) = _status;
312 }
313
314 // edge attributes
315
316 virtual void set_color(EdgeHandle _eh, const Vec4uc& _color) override
317 {
318 if (mesh_.has_edge_colors())
319 mesh_.set_color(_eh, color_cast<Color>(_color));
320 }
321
322 virtual void set_color(EdgeHandle _eh, const Vec3uc& _color) override
323 {
324 if (mesh_.has_edge_colors())
325 mesh_.set_color(_eh, color_cast<Color>(_color));
326 }
327
328 virtual void set_color(EdgeHandle _eh, const Vec4f& _color) override
329 {
330 if (mesh_.has_edge_colors())
331 mesh_.set_color(_eh, color_cast<Color>(_color));
332 }
333
334 virtual void set_color(EdgeHandle _eh, const Vec3f& _color) override
335 {
336 if (mesh_.has_edge_colors())
337 mesh_.set_color(_eh, color_cast<Color>(_color));
338 }
339
340 virtual void set_status(EdgeHandle _eh, const OpenMesh::Attributes::StatusInfo& _status) override
341 {
342 if (!mesh_.has_edge_status())
343 mesh_.request_edge_status();
344 mesh_.status(_eh) = _status;
345 }
346
347 // face attributes
348
349 virtual void set_normal(FaceHandle _fh, const Vec3f& _normal) override
350 {
351 if (mesh_.has_face_normals())
352 mesh_.set_normal(_fh, vector_cast<Normal>(_normal));
353 }
354
355 virtual void set_normal(FaceHandle _fh, const Vec3d& _normal) override
356 {
357 if (mesh_.has_face_normals())
358 mesh_.set_normal(_fh, vector_cast<Normal>(_normal));
359 }
360
361 virtual void set_color(FaceHandle _fh, const Vec3uc& _color) override
362 {
363 if (mesh_.has_face_colors())
364 mesh_.set_color(_fh, color_cast<Color>(_color));
365 }
366
367 virtual void set_color(FaceHandle _fh, const Vec4uc& _color) override
368 {
369 if (mesh_.has_face_colors())
370 mesh_.set_color(_fh, color_cast<Color>(_color));
371 }
372
373 virtual void set_color(FaceHandle _fh, const Vec3f& _color) override
374 {
375 if (mesh_.has_face_colors())
376 mesh_.set_color(_fh, color_cast<Color>(_color));
377 }
378
379 virtual void set_color(FaceHandle _fh, const Vec4f& _color) override
380 {
381 if (mesh_.has_face_colors())
382 mesh_.set_color(_fh, color_cast<Color>(_color));
383 }
384
385 virtual void set_status(FaceHandle _fh, const OpenMesh::Attributes::StatusInfo& _status) override
386 {
387 if (!mesh_.has_face_status())
388 mesh_.request_face_status();
389 mesh_.status(_fh) = _status;
390 }
391
392 virtual void add_face_texcoords( FaceHandle _fh, VertexHandle _vh, const std::vector<Vec2f>& _face_texcoords) override
393 {
394 // get first halfedge handle
395 HalfedgeHandle cur_heh = mesh_.halfedge_handle(_fh);
396 HalfedgeHandle end_heh = mesh_.prev_halfedge_handle(cur_heh);
397
398 // find start heh
399 while( mesh_.to_vertex_handle(cur_heh) != _vh && cur_heh != end_heh )
400 cur_heh = mesh_.next_halfedge_handle( cur_heh);
401
402 for(unsigned int i=0; i<_face_texcoords.size(); ++i)
403 {
404 set_texcoord( cur_heh, _face_texcoords[i]);
405 cur_heh = mesh_.next_halfedge_handle( cur_heh);
406 }
407 }
408
409 virtual void add_face_texcoords( FaceHandle _fh, VertexHandle _vh, const std::vector<Vec3f>& _face_texcoords) override
410 {
411 // get first halfedge handle
412 HalfedgeHandle cur_heh = mesh_.halfedge_handle(_fh);
413 HalfedgeHandle end_heh = mesh_.prev_halfedge_handle(cur_heh);
414
415 // find start heh
416 while( mesh_.to_vertex_handle(cur_heh) != _vh && cur_heh != end_heh )
417 cur_heh = mesh_.next_halfedge_handle( cur_heh);
418
419 for(unsigned int i=0; i<_face_texcoords.size(); ++i)
420 {
421 set_texcoord( cur_heh, _face_texcoords[i]);
422 cur_heh = mesh_.next_halfedge_handle( cur_heh);
423 }
424 }
425
426 virtual void set_face_texindex( FaceHandle _fh, int _texId ) override
427 {
428 if ( mesh_.has_face_texture_index() ) {
429 mesh_.set_texture_index(_fh , _texId);
430 }
431 }
432
433 virtual void add_texture_information( int _id , std::string _name ) override
434 {
435 OpenMesh::MPropHandleT< std::map< int, std::string > > property;
436
437 if ( !mesh_.get_property_handle(property,"TextureMapping") ) {
438 mesh_.add_property(property,"TextureMapping");
439 }
440
441 if ( mesh_.property(property).find( _id ) == mesh_.property(property).end() )
442 mesh_.property(property)[_id] = _name;
443 }
444
445 // low-level access to mesh
446
447 virtual BaseKernel* kernel() override { return &mesh_; }
448
449 bool is_triangle_mesh() const override
450 { return Mesh::is_triangles(); }
451
452 void reserve(unsigned int nV, unsigned int nE, unsigned int nF) override
453 {
454 mesh_.reserve(nV, nE, nF);
455 }
456
457 // query number of faces, vertices, normals, texcoords
458 size_t n_vertices() const override { return mesh_.n_vertices(); }
459 size_t n_faces() const override { return mesh_.n_faces(); }
460 size_t n_edges() const override { return mesh_.n_edges(); }
461
462
463 void prepare() override{ }
464
465
466 void finish() override { }
467
468
469 private:
470
471 Mesh& mesh_;
472 // stores normals for halfedges of the next face
473 std::map<VertexHandle,Normal> halfedgeNormals_;
474 };
475
476
477 //=============================================================================
478 } // namespace IO
479 } // namespace OpenMesh
480 //=============================================================================
481 #endif
482 //=============================================================================
OpenMesh::FaceHandle
Handle for a face entity.
Definition: Handles.hh:141
OpenMesh::PolyMesh_ArrayKernelT
Polygonal mesh based on the ArrayKernel.
Definition: PolyMesh_ArrayKernelT.hh:94
OpenMesh::PolyMeshT::new_vertex
SmartVertexHandle new_vertex()
Uses default copy and assignment operator.
Definition: PolyMeshT.hh:201
OpenMesh::PolyMeshT::TexCoord2D
Kernel::TexCoord2D TexCoord2D
TexCoord2D type.
Definition: PolyMeshT.hh:120
OpenMesh::VectorT< float, 3 >
OpenMesh::IO::ImporterT
This class template provides an importer module for OpenMesh meshes.
Definition: ImporterT.hh:80
OpenMesh::BaseHandle::is_valid
bool is_valid() const
The handle is valid iff the index is not negative.
Definition: Handles.hh:72
OpenMesh::VertexHandle
Handle for a vertex entity.
Definition: Handles.hh:120
Attributes.hh
This file provides some macros containing attribute usage.
OpenMesh::PolyMeshT::Normal
Kernel::Normal Normal
Normal type.
Definition: PolyMeshT.hh:114
OpenMesh::PolyMeshT::TexCoord3D
Kernel::TexCoord3D TexCoord3D
TexCoord3D type.
Definition: PolyMeshT.hh:122
OpenMesh::PolyMeshT::FaceHalfedgeIter
Kernel::FaceHalfedgeIter FaceHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:168
OpenMesh::PolyMeshT::add_vertex
SmartVertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:235
omstream.hh
This file provides the streams omlog, omout, and omerr.
OpenMesh::PolyMeshT::FaceEdgeIter
Kernel::FaceEdgeIter FaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:169
OpenMesh::IO::BaseImporter
Base class for importer modules.
Definition: BaseImporter.hh:83
VectorT< float, 4 >
OpenMesh::EdgeHandle
Handle for a edge entity.
Definition: Handles.hh:134
OpenMesh::MPropHandleT
Handle representing a mesh property.
Definition: Property.hh:544
OpenMesh::Attributes::StatusInfo
Add status information to a base class.
Definition: Status.hh:94
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:112
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
OpenMesh::HalfedgeHandle
Handle for a halfedge entity.
Definition: Handles.hh:127
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:136
OpenMesh::BaseKernel
This class provides low-level property management like adding/removing properties and access to prope...
Definition: BaseKernel.hh:97
OpenMesh::PolyMeshT::Color
Kernel::Color Color
Color type.
Definition: PolyMeshT.hh:116