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// -------------------------------------------------------------------
// MAdLib - Copyright (C) 2008-2009 Universite catholique de Louvain
//
// See the Copyright.txt and License.txt files for license information.
// You should have received a copy of these files along with MAdLib.
// If not, see <http://www.madlib.be/license/>
//
// Please report all bugs and problems to <contrib@madlib.be>
//
// Authors: Gaetan Compere, Jean-Francois Remacle
// -------------------------------------------------------------------
#include "GeoMatcher.h"
#include "CallbackManager.h"
#include "MathUtils.h"
#include "ModelInterface.h"
#include "MAdMessage.h"
#include "AdaptInterface.h"
namespace MAd {
// -------------------------------------------------------------------
void GeoMatcherCBFunction (pPList before, pPList after, void * data,
operationType type , pEntity ppp)
{
#ifdef _HAVE_GMSH_
geoMatcher * gm = (geoMatcher *)(data);
switch (type) {
case MAd_ESPLIT: {
if ( gm->relocationsComputed() ) {
MAdMsgSgl::instance().error(__LINE__,__FILE__,
"Applying an edge split during a geometry snapping procedure");
}
// if new point is on a line or surface, you need to find its
// projection on the geometrical entity and impose its new
// location as a Dirichlet BC in the elastic model
pGEntity pGE = V_whatIn( (pVertex)ppp );
int dimBnd = GEN_type(pGE);
if ( dimBnd < 3 ) {
double xyz[3]; // current position of the new point
V_coord( (pVertex)ppp, xyz );
// printVec(xyz,"Original location");
double u,v;
if ( !V_params((pVertex)ppp,&u,&v) ) {
V_info((pVertex)ppp);
MAdMsgSgl::instance().error(__LINE__,__FILE__,
"Not a parametric point");
}
double tgt[3]; // the target location
switch (dimBnd) {
case 2: { // on a surface
GF_xyz((pGFace)pGE, u, v, tgt);
break;
}
case 1: { // on a line
GE_xyz((pGEdge)pGE, u, tgt);
break;
}
default: {
MAdMsgSgl::instance().error(__LINE__,__FILE__,
"Unexpected geometric entity dimension for a new vertex: %d",
dimBnd);
}
}
// printVec(tgt,"Target location");
// compute the difference with the current position
double dx[3];
diffVec(tgt,xyz,dx);
// printVec(dx,"DISPLACEMENT");
// impose the motion as a Dirichlet BC in the elastic model
smallVector dxVec(3);
for (int i=0; i<3; i++) dxVec(i) = dx[i];
gm->addDirichlet( (pVertex)ppp, dxVec );
}
break;
}
case MAd_ECOLLAPSE: {
gm->delDirichlet( (pVertex)ppp );
gm->delRelocation( (pVertex)ppp );
break;
}
case MAd_FSWAP:
case MAd_ESWAP: {
break;
}
case MAd_RREMOVE: {
throw; // some nodes could become parametric: to be checked
void * temp = NULL;
while ( pEntity pE = PList_next(before,&temp) ) {
if ( EN_type(pE) == 0 ) {
gm->delDirichlet( (pVertex)pE );
}
}
break;
}
default: {
MAdMsgSgl::instance().error(__LINE__,__FILE__,
"Callback function not implemented for mesh modification %d",
type);
}
}
#endif
}
// -------------------------------------------------------------------
geoMatcher::geoMatcher(pMesh _mesh, MeshAdapter * _ma):
MAdElasticityOp(_mesh), force(false), strictChecking(false),
adapter(_ma), sliverFOp(NULL), sliverROp(NULL)
{
CallBackManagerSgl::instance().registerCallBack(GeoMatcherCBFunction,this);
}
// -------------------------------------------------------------------
geoMatcher::geoMatcher(const geoMatcher& gm):
MAdElasticityOp(gm), force(gm.force), strictChecking(gm.strictChecking),
adapter(gm.adapter), sliverFOp(gm.sliverFOp), sliverROp(gm.sliverROp)
{
CallBackManagerSgl::instance().registerCallBack(GeoMatcherCBFunction,this);
}
// -------------------------------------------------------------------
geoMatcher::~geoMatcher()
{
CallBackManagerSgl::instance().unregisterCallBack(GeoMatcherCBFunction,this);
}
// -------------------------------------------------------------------
bool geoMatcher::snap()
{
bool res = true;
// --- prepare the node motion ---
buildCavity();
setDirichletBC();
compute();
// --- perform the node motion ---
if ( force ) forceRelocation();
else
{
double ratio = 0.;
int achieved = -1;
while ( achieved != 2 )
{
achieved = advance(&ratio,1.e-12);
if ( achieved == 0 ) {
MAdMsgSgl::instance().warning(-1,__FILE__,
"Could not advance snapping, achieved: %d, ratio: %f",
achieved,ratio);
}
else {
MAdMsgSgl::instance().info(-1,__FILE__,
"Advance snapping, achieved: %d, ratio: %f",
achieved,ratio);
}
if ( achieved <= 1 ) {
// Apply the operations that do not add vertices or manage their
// target locations (complicated!)
bool slivR, slivF;
if ( sliverROp ) slivR = sliverROp->getNewVertexPermission();
if ( sliverFOp ) slivF = sliverFOp->getNewVertexPermission();
if ( sliverROp ) sliverROp->newVertexPermission(false);
if ( sliverFOp ) sliverFOp->newVertexPermission(false);
int nbBefore, nbAfter;
if (M_dim(mesh) == 3) sliverROp->removeSliverRegions(&nbBefore,&nbAfter);
else sliverFOp->removeSliverFaces (&nbBefore,&nbAfter);
std::cout << "Removed slivers " << nbBefore << " -> " << nbAfter <<"\n";
if ( !( nbBefore - nbAfter ) )
{
if ( !adapter->optimiseElementShape() ) {
// string filename = outPrefix + "dirichlet.txt";
// std::ofstream dirichletOut(filename.c_str());
// geoTracker->printDirichlet(dirichletOut);
// dirichletOut.close();
// filename = outPrefix + "relocations.txt";
// std::ofstream relocationsOut(filename.c_str());
// printRelocations(relocationsOut);
// relocationsOut.close();
MAdMsgSgl::instance().warning(__LINE__,__FILE__,
"Could not snap vertices, ratio reached: %f",
ratio);
reportFailure(ratio);
break;
}
}
if ( sliverROp ) sliverROp->newVertexPermission( slivR );
if ( sliverFOp ) sliverFOp->newVertexPermission( slivF );
}
}
if ( strictChecking && achieved != 2 ) { res = false; }
}
clear();
return res;
}
// -------------------------------------------------------------------
void geoMatcher::printFailures(std::ostream& out) const
{
if ( failures.size() ) {
out << "No failure reported in the GeoMatcher\n";
}
else {
out << failures.size() << " failures reported in the GeoMatcher:\n\n";
int i = 0;
std::list<double>::const_iterator it = failures.begin();
for (; it != failures.end(); it++)
{
out << i << " ratio: " << *it << "\n";
i++;
}
}
}
// -------------------------------------------------------------------
}
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