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Comparing trunk/src/math/ConvexHull.cpp (file contents):
Revision 1307 by chuckv, Mon Oct 20 19:36:32 2008 UTC vs.
Revision 1377 by gezelter, Wed Oct 21 02:49:43 2009 UTC

# Line 1 | Line 1
1 < /* Copyright (c) 2008 The University of Notre Dame. All Rights Reserved.
1 > /* Copyright (c) 2008, 2009 The University of Notre Dame. All Rights Reserved.
2   *
3   * The University of Notre Dame grants you ("Licensee") a
4   * non-exclusive, royalty free, license to use, modify and
# Line 44 | Line 44
44   *
45   *  Created by Charles F. Vardeman II on 11 Dec 2006.
46   *  @author  Charles F. Vardeman II
47 < *  @version $Id: ConvexHull.cpp,v 1.11 2008-10-20 19:36:32 chuckv Exp $
47 > *  @version $Id: ConvexHull.cpp,v 1.18 2009-10-21 02:49:43 gezelter Exp $
48   *
49   */
50  
51   /* Standard includes independent of library */
52 +
53   #include <iostream>
54   #include <fstream>
55   #include <list>
# Line 57 | Line 58
58   #include "math/ConvexHull.hpp"
59   #include "utils/simError.h"
60  
61 + #ifdef IS_MPI
62 + #include <mpi.h>
63 + #endif
64  
65   using namespace oopse;
66  
67 < /* CGAL version of convex hull first then QHULL */
68 < #ifdef HAVE_CGAL
69 < //#include <CGAL/Homogeneous.h>
70 < #include <CGAL/basic.h>
71 < //#include <CGAL/Simple_cartesian.h>
72 < #include <CGAL/Cartesian.h>
73 < #include <CGAL/Origin.h>
74 < #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
75 < #include <CGAL/Convex_hull_traits_3.h>
76 < #include <CGAL/convex_hull_3.h>
77 < #include <CGAL/Polyhedron_traits_with_normals_3.h>
78 < #include <CGAL/Polyhedron_3.h>
75 < #include <CGAL/double.h>
76 < #include <CGAL/number_utils.h>
67 > #ifdef HAVE_QHULL
68 > extern "C"
69 > {
70 > #include <qhull/qhull.h>
71 > #include <qhull/mem.h>
72 > #include <qhull/qset.h>
73 > #include <qhull/geom.h>
74 > #include <qhull/merge.h>
75 > #include <qhull/poly.h>
76 > #include <qhull/io.h>
77 > #include <qhull/stat.h>
78 > }
79  
80 + /* Old options Qt Qu Qg QG0 FA */
81 + /* More old opts Qc Qi Pp*/
82  
83 < //#include <CGAL/Quotient.h>
84 < #include <CGAL/MP_Float.h>
81 < //#include <CGAL/Lazy_exact_nt.h>
83 > ConvexHull::ConvexHull() : Hull(), dim_(3), options_("qhull Qt Pp") {
84 > }
85  
86 <
84 <
85 < typedef CGAL::MP_Float RT;
86 < //typedef double RT;
87 < //typedef CGAL::Homogeneous<RT>                     K;
88 < typedef CGAL::Exact_predicates_exact_constructions_kernel K;
89 < typedef K::Vector_3                               Vector_3;
90 < //typedef CGAL::Convex_hull_traits_3<K>             Traits;
91 < typedef CGAL::Polyhedron_traits_with_normals_3<K> Traits;
92 < //typedef Traits::Polyhedron_3                      Polyhedron_3;
93 < typedef CGAL::Polyhedron_3<Traits>                     Polyhedron_3;
94 < typedef K::Point_3                                Point_3;
95 <
96 <
97 < typedef Polyhedron_3::HalfedgeDS             HalfedgeDS;
98 < typedef Polyhedron_3::Facet_iterator                   Facet_iterator;
99 < typedef Polyhedron_3::Halfedge_around_facet_circulator Halfedge_facet_circulator;
100 < typedef Polyhedron_3::Halfedge_handle Halfedge_handle;
101 < typedef Polyhedron_3::Facet_iterator Facet_iterator;
102 < typedef Polyhedron_3::Plane_iterator Plane_iterator;
103 < typedef Polyhedron_3::Vertex_iterator Vertex_iterator;
104 < typedef Polyhedron_3::Vertex_handle Vertex_handle;
105 < typedef Polyhedron_3::Point_iterator Point_iterator;
86 > void ConvexHull::computeHull(std::vector<StuntDouble*> bodydoubles) {
87  
88 +  int numpoints = bodydoubles.size();
89  
90 +  Triangles_.clear();
91 +  
92 +  vertexT *vertex, **vertexp;
93 +  facetT *facet;
94 +  setT *vertices;
95 +  int curlong, totlong;
96 +  
97 +  std::vector<double> ptArray(numpoints*3);
98 +  std::vector<bool> isSurfaceID(numpoints);
99  
100 < class Enriched_Point_3 : public K::Point_3{
101 < public:
102 <  Enriched_Point_3(double x,double y,double z) : K::Point_3(x,y,z), yupMyPoint(false), mySD(NULL) {}
100 >  // Copy the positon vector into a points vector for qhull.
101 >  std::vector<StuntDouble*>::iterator SD;
102 >  int i = 0;
103 >  for (SD =bodydoubles.begin(); SD != bodydoubles.end(); ++SD){
104 >    Vector3d pos = (*SD)->getPos();      
105 >    ptArray[dim_ * i] = pos.x();
106 >    ptArray[dim_ * i + 1] = pos.y();
107 >    ptArray[dim_ * i + 2] = pos.z();
108 >    i++;
109 >  }
110 >  
111 >  boolT ismalloc = False;
112 >  /* Clean up memory from previous convex hull calculations*/
113 >  
114 >  if (qh_new_qhull(dim_, numpoints, &ptArray[0], ismalloc,
115 >                   const_cast<char *>(options_.c_str()), NULL, stderr)) {
116  
117 <  bool isMyPoint() const{ return yupMyPoint; }
118 <  void myPoint(){ yupMyPoint = true; }
119 <  void setSD(StuntDouble* SD){mySD = SD;}
120 <  StuntDouble* getStuntDouble(){return mySD;}
121 < private:
118 <  bool yupMyPoint;
119 <  StuntDouble* mySD;
117 >    sprintf(painCave.errMsg, "ConvexHull: Qhull failed to compute convex hull");
118 >    painCave.isFatal = 1;
119 >    simError();
120 >    
121 >  } //qh_new_qhull
122  
121 – };
123  
124 + #ifdef IS_MPI
125 +  //If we are doing the mpi version, set up some vectors for data communication
126 +  
127 +  int nproc = MPI::COMM_WORLD.Get_size();
128 +  int myrank = MPI::COMM_WORLD.Get_rank();
129 +  int localHullSites = 0;
130 +  int* hullSitesOnProc = new int[nproc];
131 +  int* coordsOnProc = new int[nproc];
132 +  int* displacements = new int[nproc];
133 +  int* vectorDisplacements = new int[nproc];
134  
135 +  std::vector<double> coords;
136 +  std::vector<double> vels;
137 +  std::vector<int> objectIDs;
138 +  std::vector<double> masses;
139  
140 +  FORALLvertices{
141 +    localHullSites++;
142 +    
143 +    int idx = qh_pointid(vertex->point);
144 +    coords.push_back(ptArray[dim_  * idx]);
145 +    coords.push_back(ptArray[dim_  * idx + 1]);
146 +    coords.push_back(ptArray[dim_  * idx + 2]);
147  
148 +    StuntDouble* sd = bodydoubles[idx];
149  
150 <    // compare Point_3's... used in setting up the STL map from points to indices
151 < template <typename Pt3>
152 < struct Point_3_comp {
153 <  bool operator() (const Pt3 & p, const Pt3 & q) const {
154 <    return CGAL::lexicographically_xyz_smaller(p,q); // this is defined inline & hence we had to create fn object & not ptrfun
150 >    Vector3d vel = sd->getVel();
151 >    vels.push_back(vel.x());
152 >    vels.push_back(vel.y());
153 >    vels.push_back(vel.z());
154 >
155 >    masses.push_back(sd->getMass());
156    }
133 – };
157  
135 – // coordinate-based hashing inefficient but can we do better if pts are copied?
136 – typedef std::map<Point_3, StuntDouble* ,Point_3_comp<Point_3> > ptMapType;
158  
138 – #ifdef IS_MPI
139 – struct {
140 –  double x,y,z;
141 – } surfacePt;
142 – #endif
159  
160 < ConvexHull::ConvexHull() : Hull(){
161 <  //If we are doing the mpi version, set up some vectors for data communication
146 < #ifdef IS_MPI
160 >  MPI::COMM_WORLD.Allgather(&localHullSites, 1, MPI::INT, &hullSitesOnProc[0],
161 >                            1, MPI::INT);
162  
163 +  int globalHullSites = 0;
164 +  for (int iproc = 0; iproc < nproc; iproc++){
165 +    globalHullSites += hullSitesOnProc[iproc];
166 +    coordsOnProc[iproc] = dim_ * hullSitesOnProc[iproc];
167 +  }
168  
169 < nproc_ = MPI::COMM_WORLD.Get_size();
170 < myrank_ = MPI::COMM_WORLD.Get_rank();
171 < NstoProc_ = new int[nproc_];
172 < displs_   = new int[nproc_];
169 >  displacements[0] = 0;
170 >  vectorDisplacements[0] = 0;
171 >  
172 >  for (int iproc = 1; iproc < nproc; iproc++){
173 >    displacements[iproc] = displacements[iproc-1] + hullSitesOnProc[iproc-1];
174 >    vectorDisplacements[iproc] = vectorDisplacements[iproc-1] + coordsOnProc[iproc-1];
175 >  }
176  
177 < // Create a surface point type in MPI to send
178 < surfacePtType = MPI::DOUBLE.Create_contiguous(3);
179 < surfacePtType.Commit();
157 <
177 >  std::vector<double> globalCoords(dim_ * globalHullSites);
178 >  std::vector<double> globalVels(dim_ * globalHullSites);
179 >  std::vector<double> globalMasses(globalHullSites);
180  
181 < #endif
160 < }
161 <
162 < void ConvexHull::computeHull(std::vector<StuntDouble*> bodydoubles)
163 < {
164 <
165 <  std::vector<Enriched_Point_3> points;
166 <  ptMapType myMap;
167 <  Point_iterator   hc;
181 >  int count = coordsOnProc[myrank];
182    
183 <  // Copy the positon vector into a points vector for cgal.
184 <  std::vector<StuntDouble*>::iterator SD;
183 >  MPI::COMM_WORLD.Allgatherv(&coords[0], count, MPI::DOUBLE, &globalCoords[0],
184 >                             &coordsOnProc[0], &vectorDisplacements[0],
185 >                             MPI::DOUBLE);
186  
187 <    for (SD =bodydoubles.begin(); SD != bodydoubles.end(); ++SD)
188 <    {
189 <      Vector3d pos = (*SD)->getPos();
175 <      Enriched_Point_3* pt = new Enriched_Point_3(pos.x(),pos.y(),pos.z());
176 <      pt->setSD(*SD);    
177 <      points.push_back(*pt);
178 <      // myMap[pt]=(*SD);
179 <    }
180 <  
181 <  // define object to hold convex hull
182 <  CGAL::Object ch_object_;
183 <  Polyhedron_3 polyhedron;
187 >  MPI::COMM_WORLD.Allgatherv(&vels[0], count, MPI::DOUBLE, &globalVels[0],
188 >                             &coordsOnProc[0], &vectorDisplacements[0],
189 >                             MPI::DOUBLE);
190  
191 <  // compute convex hull
192 <  
193 <  std::vector<Enriched_Point_3>::iterator testpt;
188 <  
189 <  
190 <
191 <  CGAL::convex_hull_3(points.begin(), points.end(), polyhedron);
192 <
191 >  MPI::COMM_WORLD.Allgatherv(&masses[0], localHullSites, MPI::DOUBLE,
192 >                             &globalMasses[0], &hullSitesOnProc[0],
193 >                             &displacements[0], MPI::DOUBLE);
194  
195 <
196 <  Ns_ = polyhedron.size_of_vertices();
197 <
198 < #ifdef IS_MPI
199 <  /* Gather an array of the number of verticies on each processor */
195 >  // Free previous hull
196 >  qh_freeqhull(!qh_ALL);
197 >  qh_memfreeshort(&curlong, &totlong);
198 >  if (curlong || totlong)
199 >    std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) "
200 >              << totlong << curlong << std::endl;
201    
202 +  if (qh_new_qhull(dim_, globalHullSites, &globalCoords[0], ismalloc,
203 +                   const_cast<char *>(options_.c_str()), NULL, stderr)){
204 +    
205 +    sprintf(painCave.errMsg, "ConvexHull: Qhull failed to compute global convex hull");
206 +    painCave.isFatal = 1;
207 +    simError();
208 +    
209 +  } //qh_new_qhull
210  
201 –  surfacePtsGlobal_.clear();
202 –  surfacePtsLocal_.clear();
203 –
204 –  MPI::COMM_WORLD.Allgather(&Ns_,1,MPI::INT,&NstoProc_[0],1,MPI::INT);
205 –
206 –  for (int i = 0; i < nproc_; i++){
207 –    Nsglobal_ += NstoProc_[i];
208 –  }
209 –  /*Reminder ideally, we would like to reserve size for the vectors here*/
210 –  surfacePtsLocal_.reserve(Ns_);
211 –  surfacePtsGlobal_.resize(Nsglobal_);
212 –  //  std::fill(surfacePtsGlobal_.begin(),surfacePtsGlobal_.end(),0);
213 –
214 –  /* Build a displacements array */
215 –  for (int i = 1; i < nproc_; i++){
216 –    displs_[i] = displs_[i-1] + NstoProc_[i-1];
217 –  }
218 –  
219 –  int noffset = displs_[myrank_];
220 –  /* gather the potential hull */
221 –  
222 –  
223 –  for (hc =polyhedron.points_begin();hc != polyhedron.points_end(); ++hc){
224 –    Point_3 mypoint = *hc;
225 –    surfacePt_ mpiSurfacePt;
226 –    mpiSurfacePt.x = CGAL::to_double(mypoint.x());
227 –    mpiSurfacePt.y = CGAL::to_double(mypoint.y());
228 –    mpiSurfacePt.z = CGAL::to_double(mypoint.z());
229 –    surfacePtsLocal_.push_back(mpiSurfacePt);
230 –  }
231 –
232 –  MPI::COMM_WORLD.Allgatherv(&surfacePtsLocal_[0],Ns_,surfacePtType,&surfacePtsGlobal_[0],NstoProc_,displs_,surfacePtType);
233 –  std::vector<surfacePt_>::iterator spt;
234 –  std::vector<Enriched_Point_3> gblpoints;
235 –
236 –  int mine = 0;
237 –  int pointidx = 0;
238 –  for (spt = surfacePtsGlobal_.begin(); spt != surfacePtsGlobal_.end(); ++spt)
239 –    {    
240 –      surfacePt_ thispos = *spt;
241 –      Enriched_Point_3 ept(thispos.x,thispos.y,thispos.z);
242 –      if (mine >= noffset && mine < noffset + Ns_){
243 –        ept.myPoint();
244 –        ept.setSD(points[pointidx].getStuntDouble());
245 –        pointidx++;
246 –      }
247 –      gblpoints.push_back(ept);
248 –
249 –      mine++;
250 –    }
251 –
252 –  /* Compute the global hull */
253 –  polyhedron.clear();
254 –  CGAL::convex_hull_3(gblpoints.begin(), gblpoints.end(), polyhedron);
255 –
256 –
211   #endif
212  
213 +  FORALLfacets {  
214 +    Triangle face;
215  
216 <  
217 <  /* Loop over all of the surface triangles and build data structures for atoms and normals*/
262 <  Facet_iterator j;
263 <  area_ = 0;
264 <  for ( j = polyhedron.facets_begin(); j !=polyhedron.facets_end(); ++j) {
265 <    Halfedge_handle h = j->halfedge();
266 <
267 <    Point_3 r0=h->vertex()->point();
268 <    Point_3 r1=h->next()->vertex()->point();
269 <    Point_3 r2=h->next()->next()->vertex()->point();
270 <
271 <    Point_3* pr0 = &r0;
272 <    Point_3* pr1 = &r1;
273 <    Point_3* pr2 = &r2;
274 <
275 <    Enriched_Point_3* er0 = static_cast<Enriched_Point_3*>(pr0);
276 <    Enriched_Point_3* er1 = static_cast<Enriched_Point_3*>(pr1);
277 <    Enriched_Point_3* er2 = static_cast<Enriched_Point_3*>(pr2);
278 <
279 <    // StuntDouble* sd = er0->getStuntDouble();
280 <    std::cerr << "sd globalIndex = " << to_double(er0->x()) << "\n";
281 <  
282 <    Point_3 thisCentroid = CGAL::centroid(r0,r1,r2);
283 <
284 <    Vector_3 normal = CGAL::cross_product(r1-r0,r2-r0);
285 <
286 <    Triangle* face = new Triangle();
287 <    Vector3d V3dNormal(CGAL::to_double(normal.x()),CGAL::to_double(normal.y()),CGAL::to_double(normal.z()));
288 <    Vector3d V3dCentroid(CGAL::to_double(thisCentroid.x()),CGAL::to_double(thisCentroid.y()),CGAL::to_double(thisCentroid.z()));
289 <    face->setNormal(V3dNormal);
290 <    face->setCentroid(V3dCentroid);
291 <    RealType faceArea = 0.5*V3dNormal.length();
292 <    face->setArea(faceArea);
293 <    area_ += faceArea;
294 <    Triangles_.push_back(face);
295 <    //    ptMapType::const_iterator locn=myMap.find(mypoint);
296 <    //    int myIndex = locn->second;
297 <
298 <  }
299 <  
300 <  std::cout << "Number of surface atoms is: " << Ns_ << std::endl;
301 <  
302 <
303 <
304 < }
305 < void ConvexHull::printHull(const std::string& geomFileName)
306 < {
307 <  /*
308 <  std::ofstream newGeomFile;
309 <  
310 <  //create new .md file based on old .md file
311 <  newGeomFile.open("testhull.off");
312 <  
313 <  // Write polyhedron in Object File Format (OFF).
314 <  CGAL::set_ascii_mode( std::cout);
315 <  newGeomFile << "OFF" << std::endl << polyhedron.size_of_vertices() << ' '
316 <              << polyhedron.size_of_facets() << " 0" << std::endl;
317 <  std::copy( polyhedron.points_begin(), polyhedron.points_end(),
318 <             std::ostream_iterator<Point_3>( newGeomFile, "\n"));
319 <  for (  Facet_iterator i = polyhedron.facets_begin(); i != polyhedron.facets_end(); ++i) {
320 <    Halfedge_facet_circulator j = i->facet_begin();
321 <    // Facets in polyhedral surfaces are at least triangles.
322 <    CGAL_assertion( CGAL::circulator_size(j) >= 3);
323 <    newGeomFile << CGAL::circulator_size(j) << ' ';
324 <    do {
325 <      newGeomFile << ' ' << std::distance(polyhedron.vertices_begin(), j->vertex());
326 <    } while ( ++j != i->facet_begin());
327 <    newGeomFile << std::endl;
328 <  }
329 <  
330 <  newGeomFile.close();
331 <  */
332 < /*
333 <  std::ofstream newGeomFile;
334 <
335 <  //create new .md file based on old .md file
336 <  newGeomFile.open(geomFileName.c_str());
337 <
338 <  // Write polyhedron in Object File Format (OFF).
339 <  CGAL::set_ascii_mode( std::cout);
340 <  newGeomFile << "OFF" << std::endl << ch_polyhedron.size_of_vertices() << ' '
341 <  << ch_polyhedron.size_of_facets() << " 0" << std::endl;
342 <  std::copy( ch_polyhedron.points_begin(), ch_polyhedron.points_end(),
343 <             std::ostream_iterator<Point_3>( newGeomFile, "\n"));
344 <  for (  Facet_iterator i = ch_polyhedron.facets_begin(); i != ch_polyhedron.facets_end(); ++i)
345 <    {
346 <      Halfedge_facet_circulator j = i->facet_begin();
347 <      // Facets in polyhedral surfaces are at least triangles.
348 <      CGAL_assertion( CGAL::circulator_size(j) >= 3);
349 <      newGeomFile << CGAL::circulator_size(j) << ' ';
350 <      do
351 <        {
352 <          newGeomFile << ' ' << std::distance(ch_polyhedron.vertices_begin(), j->vertex());
353 <        }
354 <      while ( ++j != i->facet_begin());
355 <      newGeomFile << std::endl;
356 <    }
357 <
358 <  newGeomFile.close();
359 < */
360 <
361 < }
362 <
363 <
364 <
365 <
366 <
367 <
368 <
369 < #else
370 < #ifdef HAVE_QHULL
371 < /* Old options Qt Qu Qg QG0 FA */
372 < /* More old opts Qc Qi Pp*/
373 < ConvexHull::ConvexHull() : Hull(), dim_(3), options_("qhull Qt Pp"), Ns_(200), nTriangles_(0) {
374 <  //If we are doing the mpi version, set up some vectors for data communication
375 < #ifdef IS_MPI
376 <
377 <
378 < nproc_ = MPI::COMM_WORLD.Get_size();
379 < myrank_ = MPI::COMM_WORLD.Get_rank();
380 < NstoProc_ = new int[nproc_];
381 < displs_   = new int[nproc_];
382 <
383 < // Create a surface point type in MPI to send
384 < //surfacePtType = MPI::DOUBLE.Create_contiguous(3);
385 < // surfacePtType.Commit();
386 <
387 <
388 < #endif
389 < }
390 <
391 <
392 <
393 < void ConvexHull::computeHull(std::vector<StuntDouble*> bodydoubles)
394 < {
395 <  
396 <  std::vector<int> surfaceIDs;
397 <  std::vector<int> surfaceIDsGlobal;
398 <  std::vector<int> localPtsMap;
399 <  int numpoints = bodydoubles.size();
400 <
401 <  //coordT* pt_array;
402 <  coordT* surfpt_array;
403 <  vertexT *vertex, **vertexp;
404 <  facetT *facet;
405 <  setT *vertices;
406 <  int curlong,totlong;
407 <  int id;
408 <  
409 <  coordT *point,**pointp;
410 <
411 <
412 <  FILE *outdummy = NULL;
413 <  FILE *errdummy = NULL;
414 <  
415 <  //pt_array = (coordT*) malloc(sizeof(coordT) * (numpoints * dim_));
416 <
417 < //  double* ptArray = new double[numpoints * 3];
418 <  std::vector<double> ptArray(numpoints*3);
419 <  std::vector<bool> isSurfaceID(numpoints);
420 <
421 <  // Copy the positon vector into a points vector for qhull.
422 <  std::vector<StuntDouble*>::iterator SD;
423 <  int i = 0;
424 <  for (SD =bodydoubles.begin(); SD != bodydoubles.end(); ++SD)
425 <    {
426 <      Vector3d pos = (*SD)->getPos();
427 <      
428 <      ptArray[dim_ * i] = pos.x();
429 <      ptArray[dim_ * i + 1] = pos.y();
430 <      ptArray[dim_ * i + 2] = pos.z();
431 <      i++;
432 <    }
433 <  
434 <
435 <  
436 <  
437 <  
438 <  
439 <  boolT ismalloc = False;
440 <  /* Clean up memory from previous convex hull calculations*/
441 <  Triangles_.clear();
442 <  surfaceSDs_.clear();
443 <  surfaceSDs_.reserve(Ns_);
444 <
445 <  if (qh_new_qhull(dim_, numpoints, &ptArray[0], ismalloc,
446 <                    const_cast<char *>(options_.c_str()), NULL, stderr)) {
447 <
448 <      sprintf(painCave.errMsg, "ConvexHull: Qhull failed to compute convex hull");
449 <      painCave.isFatal = 1;
450 <      simError();
451 <      
452 <  } //qh_new_qhull
453 <
454 <
455 < #ifdef IS_MPI
456 <  std::vector<double> localPts;
457 <  std::vector<double> localVel;
458 <  int localPtArraySize;
459 <  
460 <
461 <  std::fill(isSurfaceID.begin(),isSurfaceID.end(),false);
462 <
463 <
464 <  FORALLfacets {
216 >    Vector3d V3dNormal(facet->normal[0], facet->normal[1], facet->normal[2]);
217 >    face.setNormal(V3dNormal);
218      
219 <    if (!facet->simplicial){
220 <      // should never happen with Qt
468 <      sprintf(painCave.errMsg, "ConvexHull: non-simplicaial facet detected");
469 <      painCave.isFatal = 1;
470 <      simError();
471 <    }
219 >    RealType faceArea = qh_facetarea(facet);
220 >    face.setArea(faceArea);
221      
473 –    
222      vertices = qh_facet3vertex(facet);
475 –    FOREACHvertex_(vertices){
476 –      id = qh_pointid(vertex->point);
477 –
478 –      if( !isSurfaceID[id] ){
479 –        isSurfaceID[id] = true;
480 –      }
481 –    }      
482 –    qh_settempfree(&vertices);      
223        
224 <  } //FORALLfacets
224 >    coordT *center = qh_getcenter(vertices);
225 >    Vector3d V3dCentroid(center[0], center[1], center[2]);
226 >    face.setCentroid(V3dCentroid);
227  
228 <
228 >    Vector3d faceVel = V3Zero;
229 >    Vector3d p[3];
230 >    RealType faceMass = 0.0;
231  
232 <  /*
489 <  std::sort(surfaceIDs.begin(),surfaceIDs.end());
490 <  surfaceIDs.erase(std::unique(surfaceIDs.begin(), surfaceIDs.end()), surfaceIDs.end());
491 <  int localPtArraySize = surfaceIDs.size() * 3;
492 <  */
232 >    int ver = 0;
233  
234 <  //localPts.resize(localPtArraySize);
235 <  //std::fill(localPts.begin(),localPts.end(),0.0);
234 >    FOREACHvertex_(vertices){
235 >      int id = qh_pointid(vertex->point);
236 >      p[ver][0] = vertex->point[0];
237 >      p[ver][1] = vertex->point[1];
238 >      p[ver][2] = vertex->point[2];
239 >      
240 >      Vector3d vel;
241 >      RealType mass;
242  
243 + #ifdef IS_MPI
244 +      vel = Vector3d(globalVels[dim_ * id],
245 +                     globalVels[dim_ * id + 1],
246 +                     globalVels[dim_ * id + 2]);
247 +      mass = globalMasses[id];
248  
249 <  int idx = 0;
250 <  int nIsIts = 0;
500 < /*
501 <  // Copy the surface points into an array.
502 <  for(std::vector<bool>::iterator list_iter = isSurfaceID.begin();
503 <      list_iter != isSurfaceID.end(); list_iter++)
504 <    {
505 <      bool isIt = *list_iter;
506 <      if (isIt){
507 <        localPts.push_back(ptArray[dim_ * idx]);    
508 <        localPts.push_back(ptArray[dim_ * idx + 1]);
509 <        localPts.push_back(ptArray[dim_ * idx + 2]);
510 <        localPtsMap.push_back(idx);
511 <        nIsIts++;
512 <      } //Isit
513 <      idx++;
514 <    } //isSurfaceID
515 <  */
516 <  FORALLvertices {
517 <    idx = qh_pointid(vertex->point);
518 <    localPts.push_back(ptArray[dim_ * idx]);    
519 <    localPts.push_back(ptArray[dim_ * idx + 1]);
520 <    localPts.push_back(ptArray[dim_ * idx + 2]);
249 >      // localID will be between 0 and hullSitesOnProc[myrank] if we
250 >      // own this guy.
251  
252 <    Vector3d vel = bodydoubles[idx]->getVel();
523 <    localVel.push_back(vel.x());
524 <    localVel.push_back(vel.y());
525 <    localVel.push_back(vel.z());
252 >      int localID = id - displacements[myrank];
253  
254 <    localPtsMap.push_back(idx);
255 <  }
254 >      if (localID >= 0 && localID < hullSitesOnProc[myrank])
255 >        face.addVertexSD(bodydoubles[localID]);
256 >      
257 > #else
258 >      vel = bodydoubles[id]->getVel();
259 >      mass = bodydoubles[id]->getMass();
260 >      face.addVertexSD(bodydoubles[id]);      
261 > #endif
262 >        
263 >      faceVel = faceVel + vel;
264 >      faceMass = faceMass + mass;
265 >      ver++;      
266 >    } //Foreachvertex
267  
268 +    face.addVertices(p[0], p[1], p[2]);
269 +    face.setFacetMass(faceMass);
270 +    face.setFacetVelocity(faceVel/3.0);
271 +    Triangles_.push_back(face);
272 +    qh_settempfree(&vertices);      
273  
274 <  localPtArraySize = localPts.size();
532 <
533 <
534 <  MPI::COMM_WORLD.Allgather(&localPtArraySize,1,MPI::INT,&NstoProc_[0],1,MPI::INT);
535 <
536 <  Nsglobal_=0;
537 <  for (int i = 0; i < nproc_; i++){
538 <    Nsglobal_ += NstoProc_[i];
539 <  }
274 >  } //FORALLfacets
275    
276 <
277 <  int nglobalPts = int(Nsglobal_/3);
278 <
276 >  qh_getarea(qh facet_list);
277 >  volume_ = qh totvol;
278 >  area_ = qh totarea;
279  
280 <  std::vector<double> globalPts(Nsglobal_);
281 <  std::vector<double> globalVel(Nsglobal_);
282 <
283 <  isSurfaceID.resize(nglobalPts);
284 <
285 <
551 <  std::fill(globalPts.begin(),globalPts.end(),0.0);
552 <
553 <  displs_[0] = 0;
554 <  /* Build a displacements array */
555 <  for (int i = 1; i < nproc_; i++){
556 <    displs_[i] = displs_[i-1] + NstoProc_[i-1];
557 <  }
280 > #ifdef IS_MPI
281 >  delete [] hullSitesOnProc;
282 >  delete [] coordsOnProc;
283 >  delete [] displacements;
284 >  delete [] vectorDisplacements;
285 > #endif
286    
559 –  
560 –  int noffset = displs_[myrank_];
561 –  /* gather the potential hull */
562 –  
563 –  MPI::COMM_WORLD.Allgatherv(&localPts[0],localPtArraySize,MPI::DOUBLE,&globalPts[0],&NstoProc_[0],&displs_[0],MPI::DOUBLE);
564 –  MPI::COMM_WORLD.Allgatherv(&localVel[0],localPtArraySize,MPI::DOUBLE,&globalVel[0],&NstoProc_[0],&displs_[0],MPI::DOUBLE);
565 –
566 –  /*
567 –  if (myrank_ == 0){
568 –    for (i = 0; i < globalPts.size(); i++){
569 –      std::cout << globalPts[i] << std::endl;
570 –    }
571 –  }
572 –  */
573 –  // Free previous hull
287    qh_freeqhull(!qh_ALL);
288    qh_memfreeshort(&curlong, &totlong);
289    if (curlong || totlong)
290      std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) "
291 <              << totlong << curlong << std::endl;
579 <
580 <  if (qh_new_qhull(dim_, nglobalPts, &globalPts[0], ismalloc,
581 <                    const_cast<char *>(options_.c_str()), NULL, stderr)){
582 <
583 <      sprintf(painCave.errMsg, "ConvexHull: Qhull failed to compute global convex hull");
584 <      painCave.isFatal = 1;
585 <      simError();
586 <      
587 <  } //qh_new_qhull
588 <
589 < #endif
590 <
591 <
592 <
593 <
594 <
595 <
596 <    unsigned int nf = qh num_facets;
597 <    
598 <    /* Build Surface SD list first */
599 <
600 <    std::fill(isSurfaceID.begin(),isSurfaceID.end(),false);
601 <
602 <    FORALLfacets {
603 <      
604 <      if (!facet->simplicial){
605 <      // should never happen with Qt
606 <        sprintf(painCave.errMsg, "ConvexHull: non-simplicaial facet detected");
607 <        painCave.isFatal = 1;
608 <        simError();
609 <      } //simplicical
610 <      
611 <      Triangle* face = new Triangle();
612 <      Vector3d  V3dNormal(facet->normal[0],facet->normal[1],facet->normal[2]);
613 <      face->setNormal(V3dNormal);
614 <
615 <      
616 <
617 <      RealType faceArea = 0.5*V3dNormal.length();
618 <      face->setArea(faceArea);
619 <
620 <
621 <      vertices = qh_facet3vertex(facet);
622 <      
623 <      coordT *center = qh_getcenter(vertices);
624 <      Vector3d V3dCentroid(center[0], center[1], center[2]);
625 <      face->setCentroid(V3dCentroid);
626 <      Vector3d faceVel = V3Zero;
627 <      FOREACHvertex_(vertices){
628 <        id = qh_pointid(vertex->point);
629 <        int localindex = id;
630 < #ifdef IS_MPI
631 <        Vector3d velVector(globalVel[dim_ * id],globalVel[dim_ * id + 1], globalVel[dim_ * id + 1]);
632 <        faceVel = faceVel + velVector;
633 <        if (id >= noffset/3 && id < (noffset + localPtArraySize)/3 ){
634 <          localindex = localPtsMap[id-noffset/3];
635 < #else
636 <          faceVel = faceVel + bodydoubles[localindex]->getVel();
637 < #endif
638 <          face->addVertex(bodydoubles[localindex]);
639 <          if( !isSurfaceID[id] ){
640 <            isSurfaceID[id] = true;
641 < #ifdef IS_MPI      
642 <            
643 < #endif
644 <            
645 <            surfaceSDs_.push_back(bodydoubles[localindex]);
646 <            
647 <          } //IF isSurfaceID
648 <
649 < #ifdef IS_MPI
650 <        
651 <        }else{
652 <          face->addVertex(NULL);
653 <          }
654 < #endif
655 <      } //Foreachvertex
656 <      /*
657 <      if (!SETempty_(facet->coplanarset)){
658 <        FOREACHpoint_(facet->coplanarset){
659 <          id = qh_pointid(point);
660 <          surfaceSDs_.push_back(bodydoubles[id]);
661 <        }
662 <      }
663 <      */
664 <      face->setFacetVelocity(faceVel/3.0);
665 <      Triangles_.push_back(face);
666 <      qh_settempfree(&vertices);      
667 <
668 <    } //FORALLfacets
669 <
670 <    /*
671 <    std::cout << surfaceSDs_.size() << std::endl;
672 <    for (SD = surfaceSDs_.begin(); SD != surfaceSDs_.end(); ++SD){
673 <      Vector3d thisatom = (*SD)->getPos();
674 <      std::cout << "Au " << thisatom.x() << "  " << thisatom.y() << " " << thisatom.z() << std::endl;
675 <    }
676 <    */
677 <
678 <
679 <
680 <    Ns_ = surfaceSDs_.size();
681 <    nTriangles_ = Triangles_.size();
682 <    
683 <    qh_getarea(qh facet_list);
684 <    volume_ = qh totvol;
685 <    area_ = qh totarea;
686 <    
687 <    
688 <    
689 <    qh_freeqhull(!qh_ALL);
690 <    qh_memfreeshort(&curlong, &totlong);
691 <    if (curlong || totlong)
692 <      std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) "
693 <                << totlong << curlong << std::endl;
694 <    
695 <    
696 <    
291 >              << totlong << curlong << std::endl;    
292   }
293  
294 <
700 <
701 < void ConvexHull::printHull(const std::string& geomFileName)
702 < {
703 <
294 > void ConvexHull::printHull(const std::string& geomFileName) {
295    FILE *newGeomFile;
296    
297    //create new .md file based on old .md file
# Line 712 | Line 303 | void ConvexHull::printHull(const std::string& geomFile
303    fclose(newGeomFile);
304   }
305   #endif //QHULL
715 – #endif //CGAL
716 –
717 –
718 –

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