MeshRepairPlugin.cc 33.3 KB
Newer Older
Jan Möbius's avatar
 
Jan Möbius committed
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
 *                                                                            *
 *                              OpenFlipper                                   *
 *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen       *
 *                           www.openflipper.org                              *
 *                                                                            *
 *--------------------------------------------------------------------------- *
 *  This file is part of OpenFlipper.                                         *
 *                                                                            *
 *  OpenFlipper is free software: you can redistribute it and/or modify       *
 *  it under the terms of the GNU Lesser General Public License as            *
 *  published by the Free Software Foundation, either version 3 of            *
 *  the License, or (at your option) any later version with the               *
 *  following exceptions:                                                     *
 *                                                                            *
 *  If other files instantiate templates or use macros                        *
 *  or inline functions from this file, or you compile this file and          *
 *  link it with other files to produce an executable, this file does         *
 *  not by itself cause the resulting executable to be covered by the         *
 *  GNU Lesser General Public License. This exception does not however        *
 *  invalidate any other reasons why the executable file might be             *
 *  covered by the GNU Lesser General Public License.                         *
 *                                                                            *
 *  OpenFlipper 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 Lesser General Public License for more details.                       *
 *                                                                            *
 *  You should have received a copy of the GNU LesserGeneral Public           *
 *  License along with OpenFlipper. If not,                                   *
 *  see <http://www.gnu.org/licenses/>.                                       *
 *                                                                            *
Jan Möbius's avatar
 
Jan Möbius committed
33 34 35
\*===========================================================================*/

/*===========================================================================*\
36 37 38 39 40
 *                                                                            *
 *   $Revision$                                                       *
 *   $LastChangedBy$                                                *
 *   $Date$                     *
 *                                                                            *
Jan Möbius's avatar
 
Jan Möbius committed
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
\*===========================================================================*/

#include <QtGui>

#include "MeshRepairPlugin.hh"

#include <iostream>

#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
#include "OpenFlipper/INIFile/INIFile.hh"

#include <MeshTools/MeshSelectionT.hh>
#include <ACG/Geometry/Algorithms.hh>
#include <Math_Tools/Math_Tools.hh>

//-----------------------------------------------------------------------------

Jan Möbius's avatar
Jan Möbius committed
58 59 60 61 62 63 64 65
MeshRepairPlugin::MeshRepairPlugin() :
tool_(0),
toolIcon_(0)
{

}
//-----------------------------------------------------------------------------

Jan Möbius's avatar
 
Jan Möbius committed
66 67 68 69 70 71 72
void
MeshRepairPlugin::
initializePlugin()
{
  tool_ = new MeshRepairToolbarWidget();
  QSize size(300, 300);
  tool_->resize(size);
73 74


Jan Möbius's avatar
 
Jan Möbius committed
75
  // Vertex Selection/Removal
Jan Möbius's avatar
Jan Möbius committed
76
  connect(tool_->valenceThreeButton, SIGNAL(clicked()), this, SLOT(slotDetectFlatValence3Vertices()) );
Jan Möbius's avatar
 
Jan Möbius committed
77 78 79 80
  connect(tool_->repairRemoveVButton, SIGNAL(clicked()), this, SLOT(slotRemoveSelectedVal3Vertices()) );

  // Edge Selection/Repairing
  connect(tool_->detectEShorterButton, SIGNAL(clicked()), this, SLOT(slotDetectEdgesShorter()) );
81
  connect(tool_->detectELargerButton, SIGNAL(clicked()), this, SLOT(slotDetectEdgesLonger()) );
Jan Möbius's avatar
 
Jan Möbius committed
82
  connect(tool_->repairCollapseEButton, SIGNAL(clicked()), this, SLOT(slotRemoveSelectedEdges()) );
83 84
  connect(tool_->detectCapAngle, SIGNAL(clicked()), this, SLOT(slotDetectSkinnyTriangleByAngle()) );
  connect(tool_->repairFlipEButton, SIGNAL(clicked()), this, SLOT(slotRemoveSkinnyTriangleByAngle()) );
Jan Möbius's avatar
 
Jan Möbius committed
85
  connect(tool_->detectFoldoverButton, SIGNAL(clicked()), this, SLOT(slotDetectFoldover()) );
86

Jan Möbius's avatar
 
Jan Möbius committed
87 88 89 90
  //Face operations
  connect(tool_->triangleAspectButton,SIGNAL(clicked()),this,SLOT(slotDetectTriangleAspect()));
  connect(tool_->flipOrientation,SIGNAL(clicked()),this,SLOT(slotFlipOrientation()));

91 92 93 94
  //Normal operations
  connect(tool_->computeNormals,SIGNAL(clicked()),this,SLOT(slotUpdateNormals()));
  connect(tool_->computeVertexNormals,SIGNAL(clicked()),this,SLOT(slotUpdateVertexNormals()));
  connect(tool_->computeFaceNormals,SIGNAL(clicked()),this,SLOT(slotUpdateFaceNormals()));
95
  connect(tool_->computeHalfedgeNormals,SIGNAL(clicked()),this,SLOT(slotUpdateHalfedgeNormals()));
96

Jan Möbius's avatar
 
Jan Möbius committed
97 98 99 100
  toolIcon_ = new QIcon(OpenFlipper::Options::iconDirStr()+OpenFlipper::Options::dirSeparator()+"meshrepair-toolbox.png");
  tool_->repairCollapseEButton->setIcon(*toolIcon_);
  tool_->repairFlipEButton->setIcon(*toolIcon_);
  tool_->repairRemoveVButton->setIcon(*toolIcon_);
101

Jan Möbius's avatar
 
Jan Möbius committed
102 103 104
  emit addToolbox( tr("Mesh Repair") , tool_,  toolIcon_);
}

105 106 107
//===========================================================================
// Button Slots
//===========================================================================
Jan Möbius's avatar
 
Jan Möbius committed
108

109
void MeshRepairPlugin::slotRemoveSelectedVal3Vertices() {
Jan Möbius's avatar
 
Jan Möbius committed
110

111
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
112
    removeSelectedVal3Vertices(o_it->id());
Jan Möbius's avatar
 
Jan Möbius committed
113

114
  emit updateView();
Jan Möbius's avatar
 
Jan Möbius committed
115 116 117 118 119
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotRemoveSelectedEdges(){
120

Jan Möbius's avatar
 
Jan Möbius committed
121 122
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it) 
    removeSelectedEdges(o_it->id());
123

Jan Möbius's avatar
 
Jan Möbius committed
124 125 126
  emit updateView();
}

127 128 129
//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotDetectSkinnyTriangleByAngle()
Jan Möbius's avatar
 
Jan Möbius committed
130
{
131
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
132
    detectSkinnyTriangleByAngle( o_it->id(), tool_->capAngleSpinbox->value(), false );
133

Jan Möbius's avatar
 
Jan Möbius committed
134 135 136
  emit updateView();
}

137 138 139
//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotRemoveSkinnyTriangleByAngle()
Jan Möbius's avatar
 
Jan Möbius committed
140
{
141
  //rewrite!!!
142
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
143
    detectSkinnyTriangleByAngle( o_it->id(), tool_->capAngleSpinbox->value(), true );
144

Jan Möbius's avatar
 
Jan Möbius committed
145 146 147 148 149 150 151
  emit updateView();
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotDetectFoldover() {

152
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
153
    detectFoldover(o_it->id(), tool_->detectFoldoverSpinbox->value());
154 155

  emit updateView();
Jan Möbius's avatar
 
Jan Möbius committed
156 157 158 159 160 161
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotDetectTriangleAspect() {

162
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
163
    detectTriangleAspect(o_it->id(), tool_->triangleAspectSpinbox->value());
164 165 166 167

  emit updateView();
}

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

void MeshRepairPlugin::slotFlipOrientation(){

  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    flipOrientation(o_it->id());

  emit updateView();
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotUpdateVertexNormals() {
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    updateVertexNormals(o_it->id());

  emit updateView();
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotUpdateFaceNormals() {
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    updateFaceNormals(o_it->id());

  emit updateView();
}

//-----------------------------------------------------------------------------

198 199 200 201 202 203 204 205 206
void MeshRepairPlugin::slotUpdateHalfedgeNormals() {
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    updateHalfedgeNormals(o_it->id());

  emit updateView();
}

//-----------------------------------------------------------------------------

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
void MeshRepairPlugin::slotUpdateNormals(){
  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    updateNormals(o_it->id());

  emit updateView();
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotDetectEdgesShorter(){
  double length = tool_->edgeSpin->value();

  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    selectEdgesShorterThan(o_it->id(),length);

  emit updateView();
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotDetectEdgesLonger(){
  double length = tool_->edgeSpin->value();

  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    selectEdgesLongerThan(o_it->id(),length);

  emit updateView();
}

Jan Möbius's avatar
Jan Möbius committed
236 237 238 239 240 241 242 243 244 245 246
//-----------------------------------------------------------------------------

void MeshRepairPlugin::slotDetectFlatValence3Vertices() {
  double angle = tool_->valenceThreeSpinbox->value();

  for ( PluginFunctions::ObjectIterator o_it(PluginFunctions::TARGET_OBJECTS,DataType( DATA_TRIANGLE_MESH | DATA_POLY_MESH ) );  o_it != PluginFunctions::objectsEnd(); ++o_it)
    detectFlatValence3Vertices(o_it->id(), angle);

  emit updateView();
}

247 248 249 250 251 252 253 254 255 256 257 258

//-----------------------------------------------------------------------------

/** \brief Initialization of the plugin when it is loaded by the core
 *
 */
void MeshRepairPlugin::pluginsInitialized() {

  emit setSlotDescription("updateFaceNormals(int)",tr("Recompute Face normals"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

259 260 261 262
  emit setSlotDescription("updateHalfedgeNormals(int)",tr("Recompute Halfedge normals"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

263 264 265 266 267 268 269 270 271 272 273 274
  emit setSlotDescription("updateVertexNormals(int)",tr("Recompute Vertex normals"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

  emit setSlotDescription("updateNormals(int)",tr("Recompute Face and Vertex normals"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

  emit setSlotDescription("flipOrientation(int)",tr("Flips the normals of all faces by changing the vertex order in each face"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

275 276 277 278 279 280 281 282 283
  emit setSlotDescription("removeSelectedEdges(int)",tr("Remove the selected edges"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

  emit setSlotDescription("removeSelectedVal3Vertices(int)",tr("Remove all selected valence 3 vertices"),
                          QStringList(tr("objectId")),
                          QStringList(tr("ID of an object")));

  emit setSlotDescription("detectFoldover(int,float)",tr("Selects edges that are incident to folded over faces."),
284 285
                          QString(tr("objectId,angle")).split(","),
                          QString(tr("ID of an object;Minimum threshold angle for fold-overs")).split(";"));
286 287

  emit setSlotDescription("detectTriangleAspect(int,float)",tr("Selects all vertices that have a minimum aspect."),
288 289
                          QString(tr("objectId,aspect")).split(","),
                          QString(tr("ID of an object;The minimum aspect ratio")).split(";"));
290 291

  emit setSlotDescription("selectEdgesShorterThan(int,double)",tr("Selects all edges of an object which are shorter than the given length"),
292 293
                          QString(tr("objectId,length")).split(","),
                          QString(tr("ID of an object;All edges shorter than this length will be selected")).split(";"));
294 295

  emit setSlotDescription("selectEdgesLongerThan(int,double)",tr("Selects all edges of an object which are longer than the given length"),
296 297
                          QString(tr("objectId,length")).split(","),
                          QString(tr("ID of an object;All edges longer than this length will be selected")).split(";"));
298

Jan Möbius's avatar
Jan Möbius committed
299
  emit setSlotDescription("detectFlatValence3Vertices(int,double)",tr("Selects all vertices that have valence 3 and the normals of their neighboring faces have an angle less then the given angle"),
300 301
                          QString(tr("objectId,angle")).split(","),
                          QString(tr("ID of an object;the maximal angle between the adjacent faces")).split(";"));
302 303

  emit setSlotDescription("detectSkinnyTriangleByAngle(int,double,bool)",tr("Select or remove skinny triangles. Whether a triangle is skinny is determined by a minimum angle threshold."),
304 305
                          QString(tr("objectId,angle,remove")).split(","),
                          QString(tr("ID of an object;Minimum angle threshold")).split(";"));
Jan Möbius's avatar
Jan Möbius committed
306

307 308 309 310 311 312 313 314
}



//===========================================================================
// Scriptable functions
//===========================================================================

315 316
void MeshRepairPlugin::removeSelectedVal3Vertices(int _objectId) {

317
  unsigned int count = 0;
318

319 320 321
  // get the target mesh
  TriMesh* mesh = 0;
  PluginFunctions::getMesh(_objectId, mesh);
322

323
  if (mesh) {
324

325 326 327 328 329
    TriMesh::VertexIter v_it, v_end(mesh->vertices_end());
    TriMesh::VVIter vv_it;
    TriMesh::VFIter vf_it;
    int i;
    std::vector<TriMesh::VertexHandle> vh(3);
330

331 332 333 334 335
    for (v_it = mesh->vertices_begin(); v_it != v_end; ++v_it) {
      vf_it = mesh->vf_iter(v_it);
      if ((mesh->status(v_it).selected()) && !mesh->status(v_it).feature() && mesh->valence(v_it) == 3) {
        for (i = 0, vv_it = mesh->vv_iter(v_it); vv_it; ++vv_it, ++i)
          vh[2 - i] = vv_it.handle();
336

337 338
        mesh->delete_vertex(v_it, false);
        mesh->add_face(vh);
339

340 341
        ++count;
      }
342
    }
343 344 345
    if (count > 0)
      mesh->garbage_collection();
  }
346

347 348 349 350 351
  if (count > 0) {
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup(_objectId, "Delete/merge selected vertices", UPDATE_ALL);
  }
  emit log("Deleted " + QString::number(count) + " vertices on object " + QString::number(_objectId) + ".");
352 353 354 355
}

void MeshRepairPlugin::removeSelectedEdges(int _objectId) {

356 357
  // get the target mesh
  TriMesh* triMesh = 0;
358

359
  PluginFunctions::getMesh(_objectId, triMesh);
360

361
  if (triMesh) {
362

363
    TriMesh::EdgeIter e_it, e_end = triMesh->edges_end();
364

365
    for (e_it = triMesh->edges_begin(); e_it != e_end; ++e_it) {
366

367
      if (!triMesh->status(e_it).deleted() && triMesh->status(e_it).selected()) {
368

369 370
        const TriMesh::VHandle v0 = triMesh->to_vertex_handle(triMesh->halfedge_handle(e_it, 0));
        const TriMesh::VHandle v1 = triMesh->to_vertex_handle(triMesh->halfedge_handle(e_it, 1));
371

372 373
        const bool boundary0 = triMesh->is_boundary(v0);
        const bool boundary1 = triMesh->is_boundary(v1);
374

375 376 377
        const bool feature0 = triMesh->status(v0).feature();
        const bool feature1 = triMesh->status(v1).feature();
        const bool featureE = triMesh->status(e_it).feature();
378

379 380 381 382 383 384 385 386 387 388 389
        // Collapsing v1 into vo:
        // collapse is ok, if collapsed vertex is not a feature vertex or the target vertex is a feature
        // and if we collapse along an feature edge or if the collapsed vertex is not a feature
        if ((!boundary1 || boundary0) && (!feature1 || (feature0 && featureE)) && triMesh->is_collapse_ok(
            triMesh->halfedge_handle(e_it, 0)))
          triMesh->collapse(triMesh->halfedge_handle(e_it, 0));
        else if ((!boundary0 || boundary1) && (!feature0 || (feature1 && featureE)) && triMesh->is_collapse_ok(
            triMesh->halfedge_handle(e_it, 1)))
          triMesh->collapse(triMesh->halfedge_handle(e_it, 1));
      }
    }
390

391 392
    triMesh->garbage_collection();
    triMesh->update_normals();
393

394 395 396
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup(_objectId, "Removed selected Edges", UPDATE_ALL);
    emit scriptInfo("removeSelectedEdges(" + QString::number(_objectId) + ")");
397

398 399
    return;
  }
400

401
  emit log(LOGERR, tr("Unsupported Object Type for edge removal"));
402 403 404 405 406 407

}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::detectSkinnyTriangleByAngle(int _objectId, double _angle, bool _remove) {
408 409
  // get the target mesh
  TriMesh* triMesh = 0;
410

411
  PluginFunctions::getMesh(_objectId, triMesh);
412

413
  if (triMesh) {
414

415 416
    // Clear current edge selection
    MeshSelection::clearEdgeSelection(triMesh);
417

418 419 420
    double maxAngle = cos(_angle * M_PI / 180.0);
    double angle = 0.0;
    TriMesh::EdgeIter e_it, e_end = triMesh->edges_end();
421

422
    for (e_it = triMesh->edges_begin(); e_it != e_end; ++e_it) {
423

424 425
      // Check prerequisites
      if (!triMesh->status(e_it).deleted() && !triMesh->status(e_it).feature() && triMesh->is_flip_ok(e_it)) {
426

427 428 429 430 431 432 433
        // For both halfedges
        for (unsigned int h = 0; h < 2; ++h) {
          TriMesh::HalfedgeHandle hh = triMesh->halfedge_handle(e_it.handle(), h);
          const TriMesh::Point& a = triMesh->point(triMesh->from_vertex_handle(hh));
          const TriMesh::Point& b = triMesh->point(triMesh->to_vertex_handle(hh));
          hh = triMesh->next_halfedge_handle(hh);
          const TriMesh::Point& c = triMesh->point(triMesh->to_vertex_handle(hh));
434

435
          angle = ((a - c).normalize() | (b - c).normalize());
436

437
          if (angle < maxAngle) {
438

439 440
            // selcet it
            triMesh->status(e_it).set_selected(true);
441

442 443 444 445
            // remove it if requested
            if (_remove)
              triMesh->flip(e_it);
          }
446
        }
447
      }
448 449
    }

450 451 452 453 454 455 456 457 458 459 460 461 462 463 464
    if (_remove) {
      emit updatedObject(_objectId, UPDATE_ALL);
      emit createBackup(_objectId, tr("Removed cap edges"), UPDATE_ALL);
    } else {
      emit updatedObject(_objectId, UPDATE_SELECTION);
      emit createBackup(_objectId, tr("Selected cap edges"), UPDATE_ALL);
    } emit
    scriptInfo(
        "detectSkinnyTriangleByAngle(" + QString::number(_objectId) + "," + QString::number(_angle) + ","
        + _remove + ")");

    return;
  }

  emit log(LOGERR, tr("Unsupported Object Type for Cap detection!"));
465 466 467 468 469 470
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::detectFoldover(int _objectId, float _angle) {

471 472 473
  // get the target mesh
  TriMeshObject* trimesh_o = 0;
  PolyMeshObject* polymesh_o = 0;
474

475 476
  PluginFunctions::getObject(_objectId, trimesh_o);
  PluginFunctions::getObject(_objectId, polymesh_o);
477

478
  unsigned int count = 0;
479

480
  if (trimesh_o != 0) {
481

482 483
    // get the target mesh
    TriMesh* mesh = trimesh_o->mesh();
484

485
    if (mesh) {
486

487 488
      // Clear current edge selection
      MeshSelection::clearEdgeSelection(mesh);
489

490 491 492
      TriMesh::EdgeIter e_it, e_end(mesh->edges_end());
      TriMesh::FaceHandle fh;
      TriMesh::Scalar a, cosa = cos(_angle / 180.0 * M_PI);
493

494 495 496 497
      for (e_it = mesh->edges_begin(); e_it != e_end; ++e_it) {
        if (!mesh->is_boundary(e_it)) {
          a = (mesh->normal(mesh->face_handle(mesh->halfedge_handle(e_it, 0))) | mesh->normal(
              mesh->face_handle(mesh->halfedge_handle(e_it, 1))));
498

499 500 501 502
          if (a < cosa) {
            mesh->status(mesh->edge_handle(mesh->halfedge_handle(e_it, 0))). set_selected(true);
            ++count;
          }
503
        }
504 505 506
      }
    }
  } else if (polymesh_o != 0) {
507

508 509
    // get the target mesh
    PolyMesh* mesh = polymesh_o->mesh();
510

511
    if (mesh) {
512

513 514
      // Clear current edge selection
      MeshSelection::clearEdgeSelection(mesh);
515

516 517 518
      PolyMesh::EdgeIter e_it, e_end(mesh->edges_end());
      PolyMesh::FaceHandle fh;
      PolyMesh::Scalar a, cosa = cos(_angle / 180.0 * M_PI);
519

520 521 522 523
      for (e_it = mesh->edges_begin(); e_it != e_end; ++e_it) {
        if (!mesh->is_boundary(e_it)) {
          a = (mesh->normal(mesh->face_handle(mesh->halfedge_handle(e_it, 0))) | mesh->normal(
              mesh->face_handle(mesh->halfedge_handle(e_it, 1))));
524

525 526 527 528
          if (a < cosa) {
            mesh->status(mesh->edge_handle(mesh->halfedge_handle(e_it, 0))). set_selected(true);
            ++count;
          }
529
        }
530
      }
531
    }
532
  }
533

534 535 536 537 538 539 540 541
  if (count > 0) {
    emit updatedObject(_objectId, UPDATE_SELECTION);
    emit createBackup(_objectId, "Select edges", UPDATE_SELECTION);
    emit scriptInfo("detectFoldover(" + QString::number(_objectId) + ", " + QString::number(_angle) + ")");
  }
  emit log(
      "Selected " + QString::number(count) + " fold-overs on object " + QString::number(_objectId)
  + " with angle greater than " + QString::number(_angle) + ".");
542 543 544 545
}

//-----------------------------------------------------------------------------

546 547 548 549 550 551
void MeshRepairPlugin::updateFaceNormals(int _objectId) {
  BaseObjectData* object = 0;
  PluginFunctions::getObject(_objectId,object);

  if ( object == 0) {
    emit log(LOGERR,tr("updateFaceNormals: Unable to get object %1. ").arg(_objectId) );
552
    return;
553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571
  }

  if ( object->dataType(DATA_TRIANGLE_MESH) ) {
    TriMesh* mesh = PluginFunctions::triMesh(object);
    mesh->update_face_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated Face Normals", UPDATE_ALL);
    emit scriptInfo( "updateFaceNormals(" + QString::number(_objectId) + ")" );
  } else if ( object->dataType(DATA_POLY_MESH) ) {
    PolyMesh* mesh = PluginFunctions::polyMesh(object);
    mesh->update_face_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated Face Normals", UPDATE_ALL);
    emit scriptInfo( "updateFaceNormals(" + QString::number(_objectId) + ")" );
  } else
    emit log(LOGERR,tr("updateFaceNormals: MeshRepair only works on triangle and poly meshes!") );

}

572 573 574 575 576 577 578 579 580

//-----------------------------------------------------------------------------

void MeshRepairPlugin::updateHalfedgeNormals(int _objectId) {
  BaseObjectData* object = 0;
  PluginFunctions::getObject(_objectId,object);

  if ( object == 0) {
    emit log(LOGERR,tr("updateFaceNormals: Unable to get object %1. ").arg(_objectId) );
581
    return;
582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603
  }

  if ( object->dataType(DATA_TRIANGLE_MESH) ) {
    TriMesh* mesh = PluginFunctions::triMesh(object);
    mesh->request_halfedge_normals();
    mesh->update_halfedge_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated Face Normals", UPDATE_ALL);
    emit scriptInfo( "updateFaceNormals(" + QString::number(_objectId) + ")" );
  } else if ( object->dataType(DATA_POLY_MESH) ) {
    PolyMesh* mesh = PluginFunctions::polyMesh(object);
    mesh->request_halfedge_normals();
    mesh->update_halfedge_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated Face Normals", UPDATE_ALL);
    emit scriptInfo( "updateFaceNormals(" + QString::number(_objectId) + ")" );
  } else
    emit log(LOGERR,tr("updateFaceNormals: MeshRepair only works on triangle and poly meshes!") );

}


604 605 606 607 608 609 610 611 612
//-----------------------------------------------------------------------------


void MeshRepairPlugin::updateVertexNormals(int _objectId){
  BaseObjectData* object = 0;
  PluginFunctions::getObject(_objectId,object);

  if ( object == 0) {
    emit log(LOGERR,tr("updateVertexNormals: Unable to get object %1. ").arg(_objectId) );
613
    return;
614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639
  }

  if ( object->dataType(DATA_TRIANGLE_MESH) ) {
    TriMesh* mesh = PluginFunctions::triMesh(object);
    mesh->update_vertex_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated Vertex Normals", UPDATE_ALL);
    emit scriptInfo( "updateVertexNormals(" + QString::number(_objectId) + ")" );
  } else if ( object->dataType(DATA_POLY_MESH) ) {
    PolyMesh* mesh = PluginFunctions::polyMesh(object);
    mesh->update_vertex_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated Vertex Normals", UPDATE_ALL);
    emit scriptInfo( "updateVertexNormals(" + QString::number(_objectId) + ")" );
  } else
    emit log(LOGERR,tr("updateVertexNormals: MeshRepair only works on triangle and poly meshes!") );
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::updateNormals(int _objectId) {
  BaseObjectData* object = 0;
  PluginFunctions::getObject(_objectId,object);

  if ( object == 0) {
    emit log(LOGERR,tr("updateNormals: Unable to get object %1. ").arg(_objectId) );
640
    return;
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659
  }

  if ( object->dataType(DATA_TRIANGLE_MESH) ) {
    TriMesh* mesh = PluginFunctions::triMesh(object);
    mesh->update_normals();
    emit scriptInfo( "updateNormals(" + QString::number(_objectId) + ")" );
  } else if ( object->dataType(DATA_POLY_MESH) ) {
    PolyMesh* mesh = PluginFunctions::polyMesh(object);
    mesh->update_normals();
    emit updatedObject(_objectId, UPDATE_ALL);
    emit createBackup( _objectId, "Updated All Normals", UPDATE_ALL);
    emit scriptInfo( "updateNormals(" + QString::number(_objectId) + ")" );
  } else
    emit log(LOGERR,tr("updateNormals: MeshRepair only works on triangle and poly meshes!") );
}

//-----------------------------------------------------------------------------

void
660 661
MeshRepairPlugin::detectTriangleAspect(int _objectId, float _aspect) {

662 663
  // get the target mesh
  TriMesh* mesh = 0;
664

665
  PluginFunctions::getMesh(_objectId, mesh);
666

667
  if (mesh) {
668

669
    unsigned int count(0);
670

671 672
    // Clear current face selection
    MeshSelection::clearFaceSelection(mesh);
673

674 675 676
    TriMesh::FaceIter f_it, f_end(mesh->faces_end());
    TriMesh::FVIter fv_it;
    TriMesh::FEIter fe_it;
677

678 679
    for (f_it = mesh->faces_begin(); f_it != f_end; ++f_it) {
      fv_it = mesh->fv_iter(f_it);
680

681 682 683
      const TriMesh::Point& p0 = mesh->point(fv_it);
      const TriMesh::Point& p1 = mesh->point(++fv_it);
      const TriMesh::Point& p2 = mesh->point(++fv_it);
684

685 686 687 688
      if (ACG::Geometry::aspectRatio(p0, p1, p2) > _aspect) {
        mesh->status(f_it).set_selected(true);
        ++count;
      }
689
    }
690 691 692 693 694 695 696 697 698 699 700
    if (count > 0) {
      emit updatedObject(_objectId, UPDATE_SELECTION);
      emit createBackup(_objectId, "Select triangles", UPDATE_SELECTION);
      emit scriptInfo( "detectTriangleAspect(" + QString::number(_objectId) + ", " + QString::number(_aspect) + ")" );
    }
    emit log(
        "Selected " + QString::number(count) + " triangles on object " + QString::number(_objectId)
    + " with aspect ratio greater than " + QString::number(_aspect) + ".");
  } else {
    emit log("Cannot detect skinny triangles on non-trimesh " + QString::number(_objectId) + ".");
  }
701 702 703 704 705 706 707
}

//-----------------------------------------------------------------------------

void
MeshRepairPlugin::flipOrientation(int _objectId) {

708 709 710 711
  // get the target mesh
  TriMesh* triMesh = 0;
  PolyMesh* polyMesh = 0;

712
  PluginFunctions::getMesh(_objectId,triMesh);
713 714
  PluginFunctions::getMesh(_objectId,polyMesh);

715 716 717 718 719 720
  if (triMesh)
    flipOrientationSelected(triMesh);
  else if (polyMesh)
    flipOrientationSelected(polyMesh);
  else
    emit log( LOGERR,tr("Unsupported Object Type for normal flipping!") );
721 722


723 724 725
  emit updatedObject(_objectId, UPDATE_ALL);
  emit createBackup( _objectId, "Flipped Normals", UPDATE_ALL);
  emit scriptInfo( "flipOrientation(" + QString::number(_objectId) + ")" );
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::selectEdgesShorterThan(int _objectId,double _length) {
  selectionEdgeLength(_objectId,_length,false);

  emit scriptInfo( "selectEdgesShorterThan(" + QString::number(_objectId) + ", " + QString::number(_length) + ")" );
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::selectEdgesLongerThan(int _objectId,double _length) {
  selectionEdgeLength(_objectId,_length,true);

  emit scriptInfo( "selectEdgesLongerThan(" + QString::number(_objectId) + ", " + QString::number(_length) + ")" );
}

//-----------------------------------------------------------------------------

void MeshRepairPlugin::selectionEdgeLength(int _objectId, double _length, bool _larger) {

  // get the target mesh
  TriMesh* triMesh = 0;

  PluginFunctions::getMesh(_objectId,triMesh);

  if ( triMesh ) {
    TriMesh::EdgeIter e_it, e_end=triMesh->edges_end();

    // Clear current edge selection
    MeshSelection::clearEdgeSelection(triMesh);

    // Iterate over all edges
    for (e_it = triMesh->edges_begin(); e_it != e_end ; ++e_it) {
      TriMesh::HalfedgeHandle he = triMesh->halfedge_handle( e_it, 0 );
      TriMesh::Point p1 = triMesh->point( triMesh->from_vertex_handle( he ) );
      TriMesh::Point p2 = triMesh->point( triMesh->to_vertex_handle( he )   );

      if ( _larger ) {
        if ( (p1 - p2).norm() > _length)
          triMesh->status(e_it).set_selected(true);
      } else {
        if ( (p1 - p2).norm() < _length)
          triMesh->status(e_it).set_selected(true);
      }
    }

    emit updatedObject(_objectId,UPDATE_SELECTION);
    emit createBackup( _objectId, "Select Edges", UPDATE_SELECTION);

    return;
  }

  // get the target mesh
  PolyMesh* polyMesh = 0;
  PluginFunctions::getMesh(_objectId,polyMesh);

  if ( polyMesh ) {
    PolyMesh::EdgeIter e_it, e_end=polyMesh->edges_end();

    // Clear current edge selection
    MeshSelection::clearEdgeSelection(polyMesh);

    // Iterate over all edges
    for (e_it = polyMesh->edges_begin(); e_it != e_end ; ++e_it) {
      PolyMesh::HalfedgeHandle he = polyMesh->halfedge_handle( e_it, 0 );
      PolyMesh::Point p1 = polyMesh->point( polyMesh->from_vertex_handle( he ) );
      PolyMesh::Point p2 = polyMesh->point( polyMesh->to_vertex_handle( he )   );

      if ( _larger ) {
        if ( (p1 - p2).norm() > _length)
          polyMesh->status(e_it).set_selected(true);
      } else {
        if ( (p1 - p2).norm() < _length)
          polyMesh->status(e_it).set_selected(true);
      }
    }

    emit updatedObject(_objectId,UPDATE_SELECTION);
    emit createBackup( _objectId, "Select Edges", UPDATE_SELECTION);

    return;
  }

  emit log( LOGERR,tr("Unsupported Object Type for edge selection") );

Jan Möbius's avatar
 
Jan Möbius committed
813 814
}

815 816


Jan Möbius's avatar
Jan Möbius committed
817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848
//-----------------------------------------------------------------------------

void MeshRepairPlugin::detectFlatValence3Vertices(int _objectId, double _angle) {

  unsigned int count(0);

  // get the target mesh
  TriMesh* mesh = 0;
  PluginFunctions::getMesh(_objectId,mesh);

  if ( mesh ) {

    // Clear current triangle selection
    MeshSelection::clearVertexSelection(mesh);

    TriMesh::VertexIter                 v_it, v_end(mesh->vertices_end());
    TriMesh::VVIter                     vv_it;
    TriMesh::VFIter                     vf_it;
    TriMesh::FaceHandle                 fh;
    std::vector<TriMesh::VertexHandle>  vh(3);
    TriMesh::Scalar                     cosangle(cos(_angle/180.0*M_PI));

    for (v_it=mesh->vertices_begin(); v_it!=v_end; ++v_it)
    {
      if (!mesh->status(v_it).deleted() && !mesh->is_boundary(v_it) && mesh->valence(v_it) == 3)
      {
        vf_it = mesh->vf_iter(v_it);
        const TriMesh::Normal& n0 = mesh->normal(vf_it);
        const TriMesh::Normal& n1 = mesh->normal(++vf_it);
        const TriMesh::Normal& n2 = mesh->normal(++vf_it);

        if ( (n0|n1) > cosangle &&
849 850
            (n0|n2) > cosangle &&
            (n1|n2) > cosangle )
Jan Möbius's avatar
Jan Möbius committed
851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872
        {

          mesh->status(v_it).set_selected(true);
          ++count;
        }
      }
    }
  }
  else {
    emit log(LOGERR, "Cannot detect flat triangles on non-trimesh " + QString::number(_objectId) + ".");
  }

  if (count > 0) {
    emit updatedObject(_objectId, UPDATE_SELECTION);
    emit createBackup(_objectId, "Select vertices", UPDATE_SELECTION);
  }

  emit log (LOGINFO,"Selected " + QString::number(count) + " vertices on object " + QString::number(_objectId) + " with face angle difference smaller than " + QString::number(_angle) + ".");
  emit scriptInfo( "detectFlatValence3Vertices(" + QString::number(_objectId) + ", " + QString::number(_angle) + ")" );

}

873 874


Jan Möbius's avatar
 
Jan Möbius committed
875 876 877
//-----------------------------------------------------------------------------

Q_EXPORT_PLUGIN2( meshrepairplugin , MeshRepairPlugin );