static void getBoundaryFromMesh(GModel *m, int visible)
{
int dim = m->getDim();
std::vector<GEntity*> entities;
m->getEntities(entities);
std::set<MFace, Less_Face> bndFaces;
std::set<MEdge, Less_Edge> bndEdges;
for(unsigned int i = 0; i < entities.size(); i++){
GEntity *ge = entities[i];
if(ge->dim() != dim) continue;
if(visible && !ge->getVisibility()) continue;
for(unsigned int j = 0; j < ge->getNumMeshElements(); j++){
MElement *e = ge->getMeshElement(j);
if(dim == 2){
for(int i = 0; i < e->getNumEdges(); i++){
MEdge f = e->getEdge(i);
if(bndEdges.find(f) == bndEdges.end())
bndEdges.insert(f);
else
bndEdges.erase(f);
}
}
else if(dim == 3){
for(int i = 0; i < e->getNumFaces(); i++){
MFace f = e->getFace(i);
if(bndFaces.find(f) == bndFaces.end())
bndFaces.insert(f);
else
bndFaces.erase(f);
}
}
}
}
if(dim == 2){
discreteEdge *e = new discreteEdge(m, m->getMaxElementaryNumber(1) + 1, 0, 0);
m->add(e);
for(std::set<MEdge, Less_Edge>::iterator it = bndEdges.begin();
it != bndEdges.end(); it++){
e->lines.push_back(new MLine(it->getVertex(0), it->getVertex(1)));
}
}
else if(dim == 3){
discreteFace *f = new discreteFace(m, m->getMaxElementaryNumber(2) + 1);
m->add(f);
for(std::set<MFace, Less_Face>::iterator it = bndFaces.begin();
it != bndFaces.end(); it++){
if(it->getNumVertices() == 3)
f->triangles.push_back(new MTriangle(it->getVertex(0), it->getVertex(1),
it->getVertex(2)));
else if(it->getNumVertices() == 4)
f->quadrangles.push_back(new MQuadrangle(it->getVertex(0), it->getVertex(1),
it->getVertex(2), it->getVertex(3)));
}
}
}
static void _relocateVertexOfPyramid(MVertex *ver,
const std::vector<MElement *> <,
double relax)
{
if(ver->onWhat()->dim() != 3) return;
double x = 0.0, y = 0.0, z = 0.0;
int N = 0;
MElement *pyramid = NULL;
for(std::size_t i = 0; i < lt.size(); i++) {
double XCG = 0.0, YCG = 0.0, ZCG = 0.0;
if(lt[i]->getNumVertices() == 5)
pyramid = lt[i];
else {
for(std::size_t j = 0; j < lt[i]->getNumVertices(); j++) {
XCG += lt[i]->getVertex(j)->x();
YCG += lt[i]->getVertex(j)->y();
ZCG += lt[i]->getVertex(j)->z();
}
x += XCG;
y += YCG;
z += ZCG;
N += lt[i]->getNumVertices();
}
}
x /= N;
y /= N;
z /= N;
if(pyramid) {
MFace q = pyramid->getFace(4);
double A = q.approximateArea();
SVector3 n = q.normal();
n.normalize();
SPoint3 c = q.barycenter();
SVector3 d(x - c.x(), y - c.y(), z - c.z());
if(dot(n, d) < 0) n = n * (-1.0);
double H = .5 * sqrt(fabs(A));
double XOPT = c.x() + relax * H * n.x();
double YOPT = c.y() + relax * H * n.y();
double ZOPT = c.z() + relax * H * n.z();
double FULL_MOVE_OBJ =
objective_function(1.0, ver, XOPT, YOPT, ZOPT, lt, true);
// printf("relax %g obj %g\n",relax,FULL_MOVE_OBJ);
if(FULL_MOVE_OBJ > 0.1) {
ver->x() = XOPT;
ver->y() = YOPT;
ver->z() = ZOPT;
return;
}
}
}
static void drawNormals(drawContext *ctx, std::vector<T*> &elements)
{
glColor4ubv((GLubyte *) & CTX::instance()->color.mesh.normals);
for(unsigned int i = 0; i < elements.size(); i++){
MElement *ele = elements[i];
if(!isElementVisible(ele)) continue;
SVector3 n = ele->getFace(0).normal();
for(int j = 0; j < 3; j++)
n[j] *= CTX::instance()->mesh.normals * ctx->pixel_equiv_x / ctx->s[j];
SPoint3 pc = ele->barycenter();
ctx->drawVector(CTX::instance()->vectorType, 0, pc.x(), pc.y(), pc.z(),
n[0], n[1], n[2], CTX::instance()->mesh.light);
}
}
void distanceFromElementsToGeometry(GModel *gm, int dim,
std::map<MElement *, double> &distances)
{
std::map<MEdge, double, Less_Edge> dist2Edge;
for(GModel::eiter it = gm->firstEdge(); it != gm->lastEdge(); ++it) {
if((*it)->geomType() == GEntity::Line) continue;
for(unsigned int i = 0; i < (*it)->lines.size(); i++) {
double d = taylorDistanceEdge((*it)->lines[i], *it);
MEdge e = (*it)->lines[i]->getEdge(0);
dist2Edge[e] = d;
}
}
std::map<MFace, double, Less_Face> dist2Face;
for(GModel::fiter it = gm->firstFace(); it != gm->lastFace(); ++it) {
if((*it)->geomType() == GEntity::Plane) continue;
for(unsigned int i = 0; i < (*it)->triangles.size(); i++) {
double d = taylorDistanceFace((*it)->triangles[i], *it);
MFace f = (*it)->triangles[i]->getFace(0);
dist2Face[f] = d;
}
}
std::vector<GEntity *> entities;
gm->getEntities(entities);
for(int iEnt = 0; iEnt < entities.size(); ++iEnt) {
GEntity *&entity = entities[iEnt];
if(entity->dim() != dim) continue;
for(int iEl = 0; iEl < entity->getNumMeshElements();
iEl++) { // Detect bad elements
MElement *element = entity->getMeshElement(iEl);
double d = 0.;
for(int iEdge = 0; iEdge < element->getNumEdges(); ++iEdge) {
MEdge e = element->getEdge(iEdge);
std::map<MEdge, double, Less_Edge>::iterator it = dist2Edge.find(e);
if(it != dist2Edge.end()) d += it->second;
}
for(int iFace = 0; iFace < element->getNumFaces(); ++iFace) {
MFace f = element->getFace(iFace);
std::map<MFace, double, Less_Face>::iterator it = dist2Face.find(f);
if(it != dist2Face.end()) d += it->second;
}
distances[element] = d;
}
}
}
static void drawBarycentricDual(std::vector<T*> &elements)
{
glColor4ubv((GLubyte *) & CTX::instance()->color.fg);
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0x0F0F);
gl2psEnable(GL2PS_LINE_STIPPLE);
glBegin(GL_LINES);
for(unsigned int i = 0; i < elements.size(); i++){
MElement *ele = elements[i];
if(!isElementVisible(ele)) continue;
SPoint3 pc = ele->barycenter();
if(ele->getDim() == 2){
for(int j = 0; j < ele->getNumEdges(); j++){
MEdge e = ele->getEdge(j);
SPoint3 p = e.barycenter();
glVertex3d(pc.x(), pc.y(), pc.z());
glVertex3d(p.x(), p.y(), p.z());
}
}
else if(ele->getDim() == 3){
for(int j = 0; j < ele->getNumFaces(); j++){
MFace f = ele->getFace(j);
SPoint3 p = f.barycenter();
glVertex3d(pc.x(), pc.y(), pc.z());
glVertex3d(p.x(), p.y(), p.z());
for(int k = 0; k < f.getNumVertices(); k++){
MEdge e(f.getVertex(k), (k == f.getNumVertices() - 1) ?
f.getVertex(0) : f.getVertex(k + 1));
SPoint3 pe = e.barycenter();
glVertex3d(p.x(), p.y(), p.z());
glVertex3d(pe.x(), pe.y(), pe.z());
}
}
}
}
glEnd();
glDisable(GL_LINE_STIPPLE);
gl2psDisable(GL2PS_LINE_STIPPLE);
}
void Centerline::extrudeBoundaryLayerWall(GEdge* gin, std::vector<GEdge*> boundEdges)
{
Msg::Info("Centerline: extrude boundary layer wall (%d, %g%%R) ", nbElemLayer, hLayer);
//orient extrude direction outward
int dir = 0;
MElement *e = current->getFaceByTag(1)->getMeshElement(0);
SVector3 ne = e->getFace(0).normal();
SVector3 ps(e->getVertex(0)->x(), e->getVertex(0)->y(), e->getVertex(0)->z());
double xyz[3] = {ps.x(), ps.y(), ps.z()};
ANNidx index[1];
ANNdist dist[1];
kdtree->annkSearch(xyz, 1, index, dist);
ANNpointArray nodes = kdtree->thePoints();
SVector3 pc(nodes[index[0]][0], nodes[index[0]][1], nodes[index[0]][2]);
SVector3 nc = ps-pc;
if (dot(ne,nc) < 0) dir = 1;
if (dir == 1 && hLayer > 0 ) hLayer *= -1.0;
//int shift = 0;
//if(is_cut) shift = NE;
for (int i= 0; i< NF; i++){
GFace *gfc ;
if (is_cut) gfc = current->getFaceByTag(NF+i+1);
else gfc = current->getFaceByTag(i+1);
current->setFactory("Gmsh");
//view -5 to scale hLayer by radius in BoundaryLayers.cpp
std::vector<GEntity*> extrudedE = current->extrudeBoundaryLayer
(gfc, nbElemLayer, hLayer, dir, -5);
GFace *eFace = (GFace*) extrudedE[0];
eFace->addPhysicalEntity(5);
current->setPhysicalName("outerWall", 2, 5);//dim 2 tag 5
GRegion *eRegion = (GRegion*) extrudedE[1];
eRegion->addPhysicalEntity(6);
current->setPhysicalName("wallVolume", 3, 6);//dim 3 tag 6
//if double extruded layer
if (nbElemSecondLayer > 0){
std::vector<GEntity*> extrudedESec = current->extrudeBoundaryLayer
(eFace, nbElemSecondLayer, hSecondLayer, dir, -5);
GFace *eFaceSec = (GFace*) extrudedESec[0];
eFaceSec->addPhysicalEntity(9); //tag 9
current->setPhysicalName("outerSecondWall", 2, 9);//dim 2 tag 9
GRegion *eRegionSec = (GRegion*) extrudedESec[1];
eRegionSec->addPhysicalEntity(10); //tag 10
current->setPhysicalName("wallVolume", 3, 10);//dim 3 tag 10
}
//end double extrusion
for (unsigned int j = 2; j < extrudedE.size(); j++){
GFace *elFace = (GFace*) extrudedE[j];
std::list<GEdge*> l_edges = elFace->edges();
for(std::list<GEdge*>::iterator it = l_edges.begin(); it != l_edges.end(); it++){
GEdge *myEdge = *it;
if (is_cut) myEdge = current->getEdgeByTag((*it)->tag()-NE);
if( std::find(boundEdges.begin(), boundEdges.end(), myEdge) != boundEdges.end() ){
if (myEdge==gin){
elFace->addPhysicalEntity(7);
current->setPhysicalName("inletRing", 2, 7);//tag 7
}
else{
elFace->addPhysicalEntity(8);
current->setPhysicalName("outletRings", 2, 8);//tag 8
}
}
}
}
}
}