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/* Copyright (c) 2006 The University of Notre Dame. All Rights Reserved. |
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/* Copyright (c) 2008, 2009 The University of Notre Dame. All Rights Reserved. |
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* |
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* The University of Notre Dame grants you ("Licensee") a |
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* non-exclusive, royalty free, license to use, modify and |
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* |
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* Created by Charles F. Vardeman II on 11 Dec 2006. |
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* @author Charles F. Vardeman II |
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* @version $Id: ConvexHull.cpp,v 1.5 2007-11-22 16:39:45 chuckv Exp $ |
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* @version $Id: ConvexHull.cpp,v 1.20 2009-10-22 19:43:10 gezelter Exp $ |
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* |
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*/ |
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/* Standard includes independent of library */ |
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|
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#include <iostream> |
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#include <fstream> |
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#include <list> |
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#include <iterator> |
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#include "math/ConvexHull.hpp" |
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#include "utils/simError.h" |
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using namespace oopse; |
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|
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/* Old options Qt Qu Qg QG0 FA */ |
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ConvexHull::ConvexHull() : dim_(3), options_("qhull Qt Qci Tcv Pp") |
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//ConvexHull::ConvexHull() : dim_(3), options_("qhull d Qbb Qt i") |
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{} |
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#ifdef IS_MPI |
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#include <mpi.h> |
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#endif |
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|
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bool ConvexHull::genHull(std::vector<Vector3d> pos) |
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using namespace oopse; |
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|
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#ifdef HAVE_QHULL |
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extern "C" |
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{ |
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#include <qhull/qhull.h> |
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#include <qhull/mem.h> |
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#include <qhull/qset.h> |
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#include <qhull/geom.h> |
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#include <qhull/merge.h> |
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#include <qhull/poly.h> |
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#include <qhull/io.h> |
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#include <qhull/stat.h> |
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} |
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ConvexHull::ConvexHull() : Hull(), dim_(3), options_("qhull Qt Pp") { |
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} |
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int numpoints = pos.size(); |
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coordT* pt_array; |
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coordT* surfpt_array; |
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std::list<int> surface_atoms; |
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FILE *outdummy = NULL; |
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FILE *errdummy = NULL; |
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void ConvexHull::computeHull(std::vector<StuntDouble*> bodydoubles) { |
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|
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int numpoints = bodydoubles.size(); |
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pt_array = (coordT*) malloc(sizeof(coordT) * (numpoints * dim_)); |
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Triangles_.clear(); |
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|
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vertexT *vertex, **vertexp; |
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facetT *facet; |
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setT *vertices; |
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int curlong, totlong; |
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|
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std::vector<double> ptArray(numpoints*dim_); |
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// Copy the positon vector into a points vector for qhull. |
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std::vector<StuntDouble*>::iterator SD; |
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int i = 0; |
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for (SD =bodydoubles.begin(); SD != bodydoubles.end(); ++SD){ |
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Vector3d pos = (*SD)->getPos(); |
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ptArray[dim_ * i] = pos.x(); |
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ptArray[dim_ * i + 1] = pos.y(); |
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ptArray[dim_ * i + 2] = pos.z(); |
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i++; |
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} |
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|
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boolT ismalloc = False; |
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/* Clean up memory from previous convex hull calculations*/ |
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|
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if (qh_new_qhull(dim_, numpoints, &ptArray[0], ismalloc, |
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const_cast<char *>(options_.c_str()), NULL, stderr)) { |
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for (int i = 0; i < numpoints; i++) { |
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pt_array[dim_ * i] = pos[i][0]; |
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pt_array[dim_ * i + 1] = pos[i][1]; |
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pt_array[dim_ * i + 2] = pos[i][2]; |
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} |
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sprintf(painCave.errMsg, "ConvexHull: Qhull failed to compute convex hull"); |
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painCave.isFatal = 1; |
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simError(); |
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|
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} //qh_new_qhull |
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#ifdef IS_MPI |
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//If we are doing the mpi version, set up some vectors for data communication |
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|
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int nproc = MPI::COMM_WORLD.Get_size(); |
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int myrank = MPI::COMM_WORLD.Get_rank(); |
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int localHullSites = 0; |
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std::vector<int> hullSitesOnProc(nproc, 0); |
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std::vector<int> coordsOnProc(nproc, 0); |
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std::vector<int> displacements(nproc, 0); |
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std::vector<int> vectorDisplacements(nproc, 0); |
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/* |
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qh_initflags(const_cast<char *>(options_.c_str())); |
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qh_init_B(pospoints, numpoints, dim_, ismalloc); |
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qh_qhull(); |
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qh_check_output(); |
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std::vector<double> coords; |
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std::vector<double> vels; |
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std::vector<int> indexMap; |
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std::vector<double> masses; |
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qh_produce_output(); |
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*/ |
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boolT ismalloc = False; |
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FORALLvertices{ |
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localHullSites++; |
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|
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int idx = qh_pointid(vertex->point); |
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if (!qh_new_qhull(dim_, numpoints, pt_array, ismalloc, |
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const_cast<char *>(options_.c_str()), NULL, stderr)) { |
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indexMap.push_back(idx); |
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vertexT *vertex, **vertexp; |
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facetT *facet; |
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setT *vertices; |
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unsigned int nf = qh num_facets; |
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coords.push_back(ptArray[dim_ * idx]); |
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coords.push_back(ptArray[dim_ * idx + 1]); |
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coords.push_back(ptArray[dim_ * idx + 2]); |
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//Matrix idx(nf, dim); |
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/* |
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int j, i = 0, id = 0; |
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|
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int id2 = 0; |
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coordT *point,**pointp; |
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realT dist; |
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FORALLfacets { |
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j = 0; |
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|
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if (!facet->simplicial){ |
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// should never happen with Qt |
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sprintf(painCave.errMsg, "ConvexHull: non-simplicaial facet detected"); |
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painCave.isFatal = 0; |
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simError(); |
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} |
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|
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vertices = qh_facet3vertex(facet); |
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FOREACHvertex_(vertices){ |
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id = qh_pointid(vertex->point); |
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surface_atoms.push_back(id); |
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//std::cout << "Ag " << pos[id][0] << " " << pos[id][1] << " " << pos[id][2]<< std::endl; |
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} |
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qh_settempfree(&vertices); |
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|
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FOREACHpoint_(facet->coplanarset){ |
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vertex= qh_nearvertex (facet, point, &dist); |
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//id= qh_pointid (vertex->point); |
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id2= qh_pointid (point); |
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surface_atoms.push_back(id2); |
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//std::cout << "Ag " << pos[id2][0] << " " << pos[id2][1] << " " << pos[id2][2]<< std::endl; |
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//printf ("%d %d %d " qh_REAL_1 "\n", id, id2, facet->id, dist); |
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//std::cout << "Neighbors are: %d $d %d\n" << id << id2 << facet->id; |
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|
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} |
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|
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} |
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|
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*/ |
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|
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|
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} |
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StuntDouble* sd = bodydoubles[idx]; |
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Vector3d vel = sd->getVel(); |
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vels.push_back(vel.x()); |
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vels.push_back(vel.y()); |
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vels.push_back(vel.z()); |
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masses.push_back(sd->getMass()); |
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} |
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MPI::COMM_WORLD.Allgather(&localHullSites, 1, MPI::INT, &hullSitesOnProc[0], |
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1, MPI::INT); |
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qh_getarea(qh facet_list); |
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volume_ = qh totvol; |
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area_ = qh totarea; |
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// FILE *newGeomFile; |
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int globalHullSites = 0; |
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for (int iproc = 0; iproc < nproc; iproc++){ |
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globalHullSites += hullSitesOnProc[iproc]; |
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coordsOnProc[iproc] = dim_ * hullSitesOnProc[iproc]; |
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} |
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displacements[0] = 0; |
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vectorDisplacements[0] = 0; |
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|
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for (int iproc = 1; iproc < nproc; iproc++){ |
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displacements[iproc] = displacements[iproc-1] + hullSitesOnProc[iproc-1]; |
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vectorDisplacements[iproc] = vectorDisplacements[iproc-1] + coordsOnProc[iproc-1]; |
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} |
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/* |
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FORALLfacets { |
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for (int k=0; k < qh hull_dim; k++) |
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printf ("%6.2g ", facet->normal[k]); |
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printf ("\n"); |
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} |
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*/ |
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std::vector<double> globalCoords(dim_ * globalHullSites); |
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std::vector<double> globalVels(dim_ * globalHullSites); |
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std::vector<double> globalMasses(globalHullSites); |
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int curlong,totlong; |
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// geomviewHull("junk.off"); |
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qh_freeqhull(!qh_ALL); |
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qh_memfreeshort(&curlong, &totlong); |
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if (curlong || totlong) |
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std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) " |
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<< totlong << curlong << std::endl; |
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free(pt_array); |
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/* |
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int j = 0; |
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surface_atoms.sort(); |
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surface_atoms.unique(); |
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surfpt_array = (coordT*) malloc(sizeof(coordT) * (surface_atoms.size() * dim_)); |
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for(std::list<int>::iterator list_iter = surface_atoms.begin(); |
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list_iter != surface_atoms.end(); list_iter++) |
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{ |
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int i = *list_iter; |
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//surfpt_array[dim_ * j] = pos[i][0]; |
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//surfpt_array[dim_ * j + 1] = pos[i][1]; |
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//surfpt_array[dim_ * j + 2] = pos[i][2]; |
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std::cout << "Ag " << pos[i][0] << " " << pos[i][1] << " "<< pos[i][2] << std::endl; |
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j++; |
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} |
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*/ |
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|
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/* |
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std::string deloptions_ = "qhull d Qt"; |
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facetT *facet, *neighbor; |
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ridgeT *ridge, **ridgep; |
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int count = coordsOnProc[myrank]; |
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|
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MPI::COMM_WORLD.Allgatherv(&coords[0], count, MPI::DOUBLE, &globalCoords[0], |
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&coordsOnProc[0], &vectorDisplacements[0], |
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MPI::DOUBLE); |
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|
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if (!qh_new_qhull(dim_, surface_atoms.size(), surfpt_array, ismalloc, |
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const_cast<char *>(deloptions_.c_str()), NULL, stderr)) { |
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MPI::COMM_WORLD.Allgatherv(&vels[0], count, MPI::DOUBLE, &globalVels[0], |
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&coordsOnProc[0], &vectorDisplacements[0], |
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MPI::DOUBLE); |
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qh visit_id++; |
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FORALLfacets { |
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if (!facet->upperdelaunay) { |
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facet->visitid= qh visit_id; |
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qh_makeridges(facet); |
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FOREACHridge_(facet->ridges) { |
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neighbor= otherfacet_(ridge, facet); |
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if (neighbor->visitid != qh visit_id) { |
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|
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FOREACHvertex_(ridge->vertices) |
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int id2 = qh_pointid (vertex->point); |
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std::cout << "Ag " << pos[id2][0] << " " << pos[id2][1] << " " << pos[id2][2]<< std::endl; |
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} |
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} |
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} |
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MPI::COMM_WORLD.Allgatherv(&masses[0], localHullSites, MPI::DOUBLE, |
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&globalMasses[0], &hullSitesOnProc[0], |
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&displacements[0], MPI::DOUBLE); |
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|
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// Free previous hull |
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qh_freeqhull(!qh_ALL); |
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qh_memfreeshort(&curlong, &totlong); |
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if (curlong || totlong) |
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std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) " |
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<< totlong << curlong << std::endl; |
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|
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if (qh_new_qhull(dim_, globalHullSites, &globalCoords[0], ismalloc, |
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const_cast<char *>(options_.c_str()), NULL, stderr)){ |
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|
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sprintf(painCave.errMsg, "ConvexHull: Qhull failed to compute global convex hull"); |
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painCave.isFatal = 1; |
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simError(); |
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|
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} //qh_new_qhull |
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#endif |
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FORALLfacets { |
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Triangle face; |
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|
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} |
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Vector3d V3dNormal(facet->normal[0], facet->normal[1], facet->normal[2]); |
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face.setNormal(V3dNormal); |
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|
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RealType faceArea = qh_facetarea(facet); |
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face.setArea(faceArea); |
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|
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vertices = qh_facet3vertex(facet); |
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|
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coordT *center = qh_getcenter(vertices); |
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Vector3d V3dCentroid(center[0], center[1], center[2]); |
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face.setCentroid(V3dCentroid); |
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|
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qh_freeqhull(!qh_ALL); |
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qh_memfreeshort(&curlong, &totlong); |
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if (curlong || totlong) |
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std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) " |
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<< totlong << curlong << std::endl; |
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free(surfpt_array); |
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*/ |
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return true; |
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} |
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Vector3d faceVel = V3Zero; |
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Vector3d p[3]; |
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RealType faceMass = 0.0; |
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|
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int ver = 0; |
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|
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FOREACHvertex_(vertices){ |
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int id = qh_pointid(vertex->point); |
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p[ver][0] = vertex->point[0]; |
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p[ver][1] = vertex->point[1]; |
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p[ver][2] = vertex->point[2]; |
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|
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Vector3d vel; |
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RealType mass; |
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|
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< |
RealType ConvexHull::getVolume() |
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< |
{ |
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< |
return volume_; |
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< |
} |
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> |
#ifdef IS_MPI |
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> |
vel = Vector3d(globalVels[dim_ * id], |
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> |
globalVels[dim_ * id + 1], |
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> |
globalVels[dim_ * id + 2]); |
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> |
mass = globalMasses[id]; |
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|
|
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< |
void ConvexHull::geomviewHull(const std::string& geomFileName) |
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< |
{ |
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> |
// localID will be between 0 and hullSitesOnProc[myrank] if we |
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// own this guy. |
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|
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< |
FILE *newGeomFile; |
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> |
int localID = id - displacements[myrank]; |
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|
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< |
//create new .md file based on old .md file |
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< |
newGeomFile = fopen(geomFileName.c_str(), "w"); |
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< |
qh_findgood_all(qh facet_list); |
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< |
for (int i = 0; i < qh_PRINTEND; i++) |
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< |
qh_printfacets(newGeomFile, qh PRINTout[i], qh facet_list, NULL, !qh_ALL); |
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> |
if (localID >= 0 && localID < hullSitesOnProc[myrank]) |
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> |
face.addVertexSD(bodydoubles[indexMap[localID]]); |
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> |
|
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> |
#else |
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> |
vel = bodydoubles[id]->getVel(); |
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> |
mass = bodydoubles[id]->getMass(); |
| 258 |
> |
face.addVertexSD(bodydoubles[id]); |
| 259 |
> |
#endif |
| 260 |
> |
|
| 261 |
> |
faceVel = faceVel + vel; |
| 262 |
> |
faceMass = faceMass + mass; |
| 263 |
> |
ver++; |
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> |
} //Foreachvertex |
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|
| 266 |
< |
fclose(newGeomFile); |
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< |
} |
| 266 |
> |
face.addVertices(p[0], p[1], p[2]); |
| 267 |
> |
face.setFacetMass(faceMass); |
| 268 |
> |
face.setFacetVelocity(faceVel/3.0); |
| 269 |
> |
Triangles_.push_back(face); |
| 270 |
> |
qh_settempfree(&vertices); |
| 271 |
|
|
| 272 |
+ |
} //FORALLfacets |
| 273 |
+ |
|
| 274 |
+ |
qh_getarea(qh facet_list); |
| 275 |
+ |
volume_ = qh totvol; |
| 276 |
+ |
area_ = qh totarea; |
| 277 |
|
|
| 278 |
+ |
qh_freeqhull(!qh_ALL); |
| 279 |
+ |
qh_memfreeshort(&curlong, &totlong); |
| 280 |
+ |
if (curlong || totlong) |
| 281 |
+ |
std::cerr << "qhull internal warning (main): did not free %d bytes of long memory (%d pieces) " |
| 282 |
+ |
<< totlong << curlong << std::endl; |
| 283 |
+ |
} |
| 284 |
|
|
| 285 |
+ |
void ConvexHull::printHull(const std::string& geomFileName) { |
| 286 |
|
|
| 287 |
+ |
#ifdef IS_MPI |
| 288 |
+ |
if (worldRank == 0) { |
| 289 |
+ |
#endif |
| 290 |
+ |
FILE *newGeomFile; |
| 291 |
+ |
|
| 292 |
+ |
//create new .md file based on old .md file |
| 293 |
+ |
newGeomFile = fopen(geomFileName.c_str(), "w"); |
| 294 |
+ |
qh_findgood_all(qh facet_list); |
| 295 |
+ |
for (int i = 0; i < qh_PRINTEND; i++) |
| 296 |
+ |
qh_printfacets(newGeomFile, qh PRINTout[i], qh facet_list, NULL, !qh_ALL); |
| 297 |
+ |
|
| 298 |
+ |
fclose(newGeomFile); |
| 299 |
+ |
#ifdef IS_MPI |
| 300 |
+ |
} |
| 301 |
+ |
#endif |
| 302 |
+ |
} |
| 303 |
+ |
#endif //QHULL |