int main()
{
lng i, j, k, cpt=0,NmbVer, NmbTri, NmbItm, MshIdx, ver, dim, ref, idx, (*TriTab)[3], buf[ BufSiz ], inc=50;
long long OctIdx;
double crd1[3] = {0,0,0}, crd2[3] = {0.002928, 0.079575, 0.006978}, crd3[3] = {-.0054, .1488, -.0067};
double dis, (*VerTab)[3], MinCrd[3], MaxCrd[3], IncCrd[3], AvgDis=0;
time_t t, t2, MinTim = INT_MAX, MaxTim = 0;
/*---------------------------------------*/
/* Open, allocate and read the mesh file */
/*---------------------------------------*/
t = clock();
puts("\nRead mesh");
if(!(MshIdx = GmfOpenMesh("test.meshb", GmfRead, &ver, &dim)))
{
puts("Cannot open test.meshb.");
return(1);
}
NmbVer = GmfStatKwd(MshIdx, GmfVertices);
NmbTri = GmfStatKwd(MshIdx, GmfTriangles);
printf("vertices = %d, triangles = %d, dimension = %d, version = %d\n", NmbVer, NmbTri, dim, ver);
if( !NmbVer || (dim != 3) )
{
puts("Incompatible mesh.");
return(1);
}
VerTab = malloc((NmbVer+1) * 3 * sizeof(double));
GmfGotoKwd(MshIdx, GmfVertices);
GmfGetBlock(MshIdx, GmfVertices, GmfDouble, &VerTab[1][0], &VerTab[2][0], GmfDouble, &VerTab[1][1], &VerTab[2][1], \
GmfDouble, &VerTab[1][2], &VerTab[2][2], GmfLong, &ref, &ref);
if(NmbTri)
{
TriTab = malloc((NmbTri+1) * 3 * sizeof(lng));
GmfGotoKwd(MshIdx, GmfTriangles);
GmfGetBlock(MshIdx, GmfTriangles, GmfLong, &TriTab[1][0], &TriTab[2][0], GmfLong, &TriTab[1][1], &TriTab[2][1], \
GmfLong, &TriTab[1][2], &TriTab[2][2], GmfLong, &ref, &ref);
}
GmfCloseMesh(MshIdx);
printf(" %g s\n", (double)(clock() - t) / CLOCKS_PER_SEC);
/*---------------------------------------------------------*/
/* Build an octree from this mesh and perform some queries */
/*---------------------------------------------------------*/
puts("\nBuild the octree : ");
t = clock();
OctIdx = NewOctree(NmbVer, VerTab[1], VerTab[2], NmbTri, TriTab[1], TriTab[2]);
printf(" %g s\n", (double)(clock() - t) / CLOCKS_PER_SEC);
for(i=0;i<3;i++)
{
MinCrd[i] = crd2[i] - .0001;
MaxCrd[i] = crd2[i] + .0001;
}
puts("\nSearch for vertices in a bounding box :");
NmbItm = GetBoundingBox(OctIdx, TypVer, BufSiz, buf, MinCrd, MaxCrd);
for(i=0;i<NmbItm;i++)
printf(" vertex : %d\n", buf[i]);
puts("\nSearch for the closest vertex from a given point :");
idx = GetNearest(OctIdx, TypVer, crd1, &dis, 0.);
printf(" closest vertex = %d, distance = %g\n", idx, dis);
if(NmbTri)
{
puts("\nSearch for triangles in a bounding box :");
NmbItm = GetBoundingBox(OctIdx, TypTri, BufSiz, buf, MinCrd, MaxCrd);
for(i=0;i<NmbItm;i++)
printf(" triangle : %d\n", buf[i]);
puts("\nSearch for the closest triangle from a given point :");
idx = GetNearest(OctIdx, TypTri, crd1, &dis, 0.);
printf(" closest triangle = %d, distance = %g\n", idx, dis);
for(i=1;i<=NmbVer;i++)
for(j=0;j<3;j++)
if(VerTab[i][j] < MinCrd[j])
MinCrd[j] = VerTab[i][j];
else if(VerTab[i][j] > MaxCrd[j])
MaxCrd[j] = VerTab[i][j];
for(i=0;i<3;i++)
IncCrd[i] = (MaxCrd[i] - MinCrd[i]) / inc;
crd1[0] = MinCrd[0];
t = clock();
for(i=0;i<inc;i++)
{
crd1[1] = MinCrd[1];
for(j=0;j<inc;j++)
{
crd1[2] = MinCrd[2];
for(k=0;k<inc;k++)
{
t2 = clock();
idx = GetNearest(OctIdx, TypTri, crd1, &dis, .005);
t2 = clock() - t2;
MinTim = MIN(MinTim, t2);
MaxTim = MAX(MaxTim, t2);
AvgDis += dis;
crd1[2] += IncCrd[2];
}
crd1[1] += IncCrd[1];
}
crd1[0] += IncCrd[0];
}
printf("nb samples = %d, mean dist = %g, total time = %g s, min time = %g s, max time = %g s\n", \
inc*inc*inc, AvgDis / (inc*inc*inc), (double)(clock() - t) / CLOCKS_PER_SEC, \
(double)MinTim / CLOCKS_PER_SEC, (double)MaxTim / CLOCKS_PER_SEC);
}
/*------------------*/
/* Cleanup memories */
/*------------------*/
printf("\nFree octree %lld\n", OctIdx);
printf(" memory used = %zd bytes\n", FreeOctree(OctIdx));
free(VerTab);
if(NmbTri)
free(TriTab);
return(0);
}
/* read mesh */
int loadMesh(pMesh mesh) {
pPoint ppt;
pTria pt1;
pTetra ptt;
pEdge pa;
float fp1,fp2,fp3;
int k,inm,i;
char *ptr,data[256];
mesh->dim=0;
strcpy(data,mesh->name);
ptr = strstr(data,".mesh");
if ( !ptr ) {
strcat(data,".mesh");
if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
strcat(data,"b");
if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
fprintf(stderr," ** %s NOT FOUND.\n",data);
return(0);
}
}
}
else {
if ( !(inm = GmfOpenMesh(data,GmfRead,&mesh->ver,&mesh->dim)) ) {
fprintf(stderr," ** %s NOT FOUND.\n",data);
return(0);
}
}
fprintf(stdout," %%%% %s OPENED\n",data);
if ( abs(info.imprim) > 3 )
fprintf(stdout," -- READING DATA FILE %s\n",data);
mesh->np = GmfStatKwd(inm,GmfVertices);
mesh->nt = GmfStatKwd(inm,GmfTriangles);
mesh->ne = GmfStatKwd(inm,GmfTetrahedra);
mesh->na = GmfStatKwd(inm,GmfEdges);
if ( !mesh->np ) {
fprintf(stdout," ** MISSING DATA\n");
return(0);
}
/* memory alloc */
mesh->point = (pPoint)calloc(mesh->np+1,sizeof(Point));
assert(mesh->point);
if ( mesh->ne ) {
mesh->tetra = (pTetra)calloc(mesh->ne+1,sizeof(Tetra));
assert(mesh->tetra);
}
if ( mesh->nt ) {
mesh->tria = (pTria)calloc(mesh->nt+1,sizeof(Tria));
assert(mesh->tria);
}
if ( mesh->dim == 2 ) {
if ( mesh->na ) {
mesh->edge = (pEdge)calloc(mesh->na+1,sizeof(Edge));
assert(mesh->edge);
}
/* read mesh vertices */
GmfGotoKwd(inm,GmfVertices);
for (k=1; k<=mesh->np; k++) {
ppt = &mesh->point[k];
if ( mesh->ver == GmfFloat ) {
GmfGetLin(inm,GmfVertices,&fp1,&fp2,&ppt->ref);
ppt->c[0] = fp1;
ppt->c[1] = fp2;
}
else
GmfGetLin(inm,GmfVertices,&ppt->c[0],&ppt->c[1],&ppt->ref);
}
/* read mesh triangles */
GmfGotoKwd(inm,GmfTriangles);
for (k=1; k<=mesh->nt; k++) {
pt1 = &mesh->tria[k];
GmfGetLin(inm,GmfTriangles,&pt1->v[0],&pt1->v[1],&pt1->v[2],&pt1->ref);
for (i=0; i<3; i++) {
ppt = &mesh->point[pt1->v[i]];
pt1->g[0] += ppt->c[0];
pt1->g[1] += ppt->c[1];
if ( !ppt->s ) ppt->s = k;
}
pt1->g[0] /= 3.0;
pt1->g[1] /= 3.0;
}
/* read mesh edges */
GmfGotoKwd(inm,GmfEdges);
for (k=1; k<=mesh->na; k++) {
pa = &mesh->edge[k];
if ( mesh->ver == GmfFloat ) {
GmfGetLin(inm,GmfEdges,&pa->v[0],&pa->v[1],&pa->ref);
}
else
GmfGetLin(inm,GmfEdges,&pa->v[0],&pa->v[1],&pa->ref);
}
if ( abs(info.imprim) > 4 ) {
fprintf(stdout," %%%% NUMBER OF VERTICES %8d\n",mesh->np);
if ( mesh->na ) fprintf(stdout," %%%% NUMBER OF EDGES %8d\n",mesh->na);
if (mesh->nt) fprintf(stdout," %%%% NUMBER OF TRIANGLES %8d\n",mesh->nt);
}
}
else {
GmfGotoKwd(inm,GmfVertices);
for (k=1; k<=mesh->np; k++) {
ppt = &mesh->point[k];
if ( mesh->ver == GmfFloat ) {
GmfGetLin(inm,GmfVertices,&fp1,&fp2,&fp3,&ppt->ref);
ppt->c[0] = fp1;
ppt->c[1] = fp2;
ppt->c[2] = fp3;
}
else
GmfGetLin(inm,GmfVertices,&ppt->c[0],&ppt->c[1],&ppt->c[2],&ppt->ref);
}
/* read triangles */
GmfGotoKwd(inm,GmfTriangles);
for (k=1; k<=mesh->nt; k++) {
pt1 = &mesh->tria[k];
GmfGetLin(inm,GmfTriangles,&pt1->v[0],&pt1->v[1],&pt1->v[2],&pt1->ref);
}
/* read tetrahedra */
GmfGotoKwd(inm,GmfTetrahedra);
for (k=1; k<=mesh->ne; k++) {
ptt = &mesh->tetra[k];
GmfGetLin(inm,GmfTetrahedra,&ptt->v[0],&ptt->v[1],&ptt->v[2],&ptt->v[3],&ptt->ref);
for (i=0; i<4; i++) {
ppt = &mesh->point[ptt->v[i]];
ptt->g[0] += ppt->c[0];
ptt->g[1] += ppt->c[1];
ptt->g[2] += ppt->c[2];
if ( !ppt->s ) ppt->s = k;
}
ptt->g[0] *= 0.25;
ptt->g[1] *= 0.25;
ptt->g[2] *= 0.25;
}
if ( abs(info.imprim) > 4 ) {
fprintf(stdout," %%%% NUMBER OF VERTICES %8d\n",mesh->np);
if ( mesh->nt ) fprintf(stdout," %%%% NUMBER OF TRIANGLES %8d\n",mesh->nt);
if ( mesh->ne ) fprintf(stdout," %%%% NUMBER OF TETRAHEDRA %8d\n",mesh->ne);
}
}
GmfCloseMesh(inm);
return(1);
}
/* load scalar solution field */
int loadSol(pSol sol) {
float buf[GmfMaxTyp];
double bufd[GmfMaxTyp];
int i,k,type,inm,typtab[GmfMaxTyp],offset;
char *ptr,data[128];
if ( !sol->name ) return(-1);
strcpy(data,sol->name);
ptr = strstr(data,".mesh");
if ( ptr ) *ptr = '\0';
strcat(data,".sol");
if ( !(inm = GmfOpenMesh(data,GmfRead,&sol->ver,&sol->dim)) ) {
strcat(data,"b");
if ( !(inm = GmfOpenMesh(data,GmfRead,&sol->ver,&sol->dim)) ) {
fprintf(stderr," ** %s NOT FOUND.\n",data);
return(0);
}
}
fprintf(stdout," %%%% %s OPENED\n",data);
if ( abs(info.imprim) > 3 )
fprintf(stdout," -- READING DATA FILE %s\n",data);
sol->np = GmfStatKwd(inm,GmfSolAtVertices,&type,&offset,&typtab);
fprintf(stdout," -- READING DATA FILE %d %d %d \n",type,offset,typtab[0]);
if ( !sol->np ) return(-1);
sol->size[0] = offset;
if (typtab[0]==2) {
/* alloc */
sol->u = (double*)calloc(sol->dim*sol->np,sizeof(double));
assert(sol->u);
/* read mesh solutions */
GmfGotoKwd(inm,GmfSolAtVertices);
if ( sol->ver == GmfFloat ) {
for (k=0; k<sol->np; k++) {
GmfGetLin(inm,GmfSolAtVertices,&buf);
for (i=0; i<sol->dim; i++)
sol->u[sol->dim*k+i] = buf[i];
}
}
else {
for (k=0; k<sol->np; k++) {
GmfGetLin(inm,GmfSolAtVertices,bufd);
for (i=0; i<sol->dim; i++)
sol->u[sol->dim*k+i] = bufd[i];
}
}
}
else if (typtab[0]==1) {
sol->u = (double*)calloc(sol->np,sizeof(double));
assert(sol->u);
sol->valp1 = (double*)calloc(sol->np,sizeof(double));
assert(sol->valp1 );
GmfGotoKwd(inm,GmfSolAtVertices);
if ( sol->ver == GmfFloat ) {
for (k=0; k<sol->np; k++) {
GmfGetLin(inm,GmfSolAtVertices,&buf);
//sol->u[k] = buf[0];
sol->valp1[k] = buf[0];
}
}
else {
for (k=0; k<sol->np; k++) {
GmfGetLin(inm,GmfSolAtVertices,bufd);
// sol->u[k] = bufd[0];
sol->valp1[k] = bufd[0];
}
}
}
GmfCloseMesh(inm);
return(1);
}
int Mesh2::load(const string & filename)
{
int bin;
int ver,inm,dim;
int lf=filename.size()+20;
KN<char> fileb(lf),filef(lf);
char * pfile;
strcpy(filef,filename.c_str());
strcpy(fileb,filef);
strcat(filef,".mesh");
strcat(fileb,".meshb");
if( (inm=GmfOpenMesh(pfile=fileb, GmfRead,&ver,&dim)) )
bin=true;
else if( (inm=GmfOpenMesh(pfile=filef, GmfRead,&ver,&dim)) )
bin=false;
else
{ cerr << " Erreur ouverture file " << (char *) fileb << " " << (char *) filef << endl;
return 1;
}
int nv,nt,neb;
nv = GmfStatKwd(inm,GmfVertices);
nt = GmfStatKwd(inm,GmfTriangles);
neb=GmfStatKwd(inm,GmfEdges);
this->set(nv,nt,neb);
if(verbosity)
cout << pfile <<": ver " << ver << ", d "<< dim << ", nt " << nt << ", nv " << nv << " nbe: = " << nbe << endl;
if(dim != Rd::d) {
cerr << "Err dim == " << dim << " != " << Rd::d << endl;
return 2; }
if( nv<=0 && nt <=0 ) {
cerr << " missing data "<< endl;
return 3;
}
int iv[4],lab;
float cr[3];
// read vertices
GmfGotoKwd(inm,GmfVertices);
int mxlab=0;
int mnlab=0;
for(int i=0;i<nv;++i)
{
if(ver<2) {
GmfGetLin(inm,GmfVertices,&cr[0],&cr[1],&lab);
vertices[i].x=cr[0];
vertices[i].y=cr[1];
// vertices[i].z=cr[2];
}
else
GmfGetLin(inm,GmfVertices,&vertices[i].x,&vertices[i].y,&lab);
vertices[i].lab=lab;
mxlab= max(mxlab,lab);
mnlab= min(mnlab,lab);
}
// /* read mesh triangles */
//if(mnlab==0 &&mxlab==0 )
{
mes=0;
GmfGotoKwd(inm,GmfTriangles);
for(int i=0;i<nt;++i)
{
GmfGetLin(inm,GmfTriangles,&iv[0],&iv[1],&iv[2],&lab);
for (int j=0;j<3;++j)
iv[j]--;
this->elements[i].set(this->vertices,iv,lab);
mes += this->elements[i].mesure();
}
}
/* read mesh segement */
mesb=0;
GmfGotoKwd(inm,GmfEdges);
for(int i=0;i<nbe;++i)
{
GmfGetLin(inm,GmfEdges,&iv[0],&iv[1],&lab);
assert( iv[0]>0 && iv[0]<=nv && iv[1]>0 && iv[1]<=nv);
for (int j=0;j<2;j++) iv[j]--;
this->borderelements[i].set(vertices,iv,lab);
mesb += this->borderelements[i].mesure();
}
GmfCloseMesh(inm);
if(verbosity>1) cout << " mesure : "<< mes << " border mesure : " << mesb<< endl;
return(0); // OK
}
CglGeometry::CglGeometry(GEOMETRY geom, char* file) {
mBuffer = nBuffer = cBuffer = iBuffer = bbmBuffer = bbiBuffer = -1;
glm::vec3 center(0,0,0);
glm::vec3 scale(1,1,1);
glm::vec3 color(1,1,1);
glm::vec3 pt1(0,0,0);
glm::vec3 pt2(1,1,1);
//pMaterial->setColor(glm::vec3(R, G, B));
//pos = glm::vec3(x,y,z);
//center = glm::vec3(x,y,z);
//MODEL[3] = glm::vec4(center,1);
switch(geom) {
case CGL_CUBE: {
vertices = std::vector<float> {
-1.0, -1.0, 1.0,
1.0, -1.0, 1.0,
1.0, 1.0, 1.0,
-1.0, 1.0, 1.0,
-1.0, -1.0, -1.0,
1.0, -1.0, -1.0,
1.0, 1.0, -1.0,
-1.0, 1.0, -1.0,
};
for(int i = 0 ; i < vertices.size() ; i+=3) {
vertices[i+0] = scale.x * vertices[i+0];
vertices[i+1] = scale.y * vertices[i+1];
vertices[i+2] = scale.z * vertices[i+2];
}
indices = std::vector<int> {
0, 1, 2,
2, 3, 0,
3, 2, 6,
6, 7, 3,
7, 6, 5,
5, 4, 7,
4, 5, 1,
1, 0, 4,
4, 0, 3,
3, 7, 4,
1, 5, 6,
6, 2, 1
};
break;
}
case CGL_SPHERE: {
sphereGeom sphere(10);
indices = sphere.indices;
for(int i = 0 ; i < sphere.vertices.size() ; i++) {
for(int j = 0 ; j < 3 ; j++)
vertices.push_back(scale[j] * sphere.vertices[i].pos[j]);
}
normals = vertices;
break;
}
case CGL_CYLINDER: {
glm::vec3 direction = pt2-pt1;
glm::vec3 ortho1 = glm::normalize(glm::cross(direction, glm::vec3(0,1,0)));
glm::vec3 ortho2 = glm::normalize(glm::cross(direction, ortho1));
//CIRCLES
std::vector<glm::vec3> circle1, circle2;
int nb = 20;
float angleInc = 2*3.14159f / nb;
float angle = 0;
for(int i = 0 ; i < nb ; i++) {
circle1.push_back( pt1 + scale.x*cos(angle)*ortho1 + scale.y*sin(angle)*ortho2 );
circle2.push_back( pt2 + scale.x*cos(angle)*ortho1 + scale.y*sin(angle)*ortho2 );
angle+=angleInc;
}
//INDICES
for(int i = 0 ; i < nb ; i++) {
indices.push_back(i);
if(i==nb-1)
indices.push_back(0);
else
indices.push_back(i+1);
indices.push_back(nb + i);
}
for(int i = 0 ; i < nb ; i++) {
indices.push_back(nb + i);
if(i==circle1.size()-1)
indices.push_back(0);
else
indices.push_back(i+1);
if(i==circle1.size()-1)
indices.push_back(nb);
else
indices.push_back(nb+i+1);
}
//VERTICES & NORMALS
for(int i = 0 ; i < nb ; i++) {
for(int j = 0 ; j < 3 ; j ++) {
vertices.push_back(circle1[i][j]);
normals.push_back(circle1[i][j] - pt1[j]);
}
}
for(int i = 0 ; i < nb ; i++) {
for(int j = 0 ; j < 3 ; j ++) {
vertices.push_back(circle2[i][j]);
normals.push_back(circle2[i][j] - pt2[j]);
}
}
break;
}
case CGL_MESH: {
meshFile = std::string(file);
cout << "Reading: " << file << " " << endl;
//Initialisation
int np,nt,nn,dim,ver, nNAtV;
Point *ppt;
Tria *pt;
double *n,dd;
float fp1,fp2,fp3;
int k,inm;
vector<Point> point;
vector<Tria> tria;
vector<Normal> normal;
vector<NormalAtVertex> NormalAtVertices;
//Lecture du .sol
/*
std::string solFile = meshFile.substr(0, meshFile.size()-5) + ".sol";
cout << solFile << endl << endl;
int ver2, dim2;
int inMeshSol = 0;
inMeshSol = GmfOpenMesh((char*)(solFile.c_str()), GmfRead, &ver2, &dim2);
if(inMeshSol == 0){cout << "Unable to open sol file" << endl; exit(143);}
cout << "sol file opened " << (char*)(solFile.c_str()) << endl;
int type, offset, typtab[GmfMaxTyp];
int nSol = GmfStatKwd(inMeshSol, GmfSolAtVertices, &type, &offset, &typtab);
std::vector<float> values(nSol);
GmfGotoKwd(inMeshSol, GmfSolAtVertices);
for(int i = 0 ; i< nSol ; i++){
double val;
if ( ver2 == GmfFloat ){
GmfGetLin(inMeshSol, GmfSolAtVertices, &values[i]);
}
else{
GmfGetLin(inMeshSol, GmfSolAtVertices, &val);
values[i] = val;
}
}
GmfCloseMesh(inMeshSol);
//COLORS
float mini = 1e9;
float maxi = -1e9;
for(int i = 0 ; i < values.size() ; i++){
mini = min(mini, values[i]);
maxi = max(maxi, values[i]);
}
palette = new CglPalette( mini, maxi, CGL_PALETTE_BR );
palette->setBoundaries(mini, maxi);
for(int i = 0 ; i < values.size() ; i++){
glm::vec3 col = palette->getColor(values[i]);
colors.push_back(col.x);
colors.push_back(col.y);
colors.push_back(col.z);
}
*/
//Lecture du .mesh
inm = GmfOpenMesh(file,GmfRead,&ver,&dim);
cout << file << "/" << ver << "/" << dim << endl;
if ( !inm ) {
cout << "Unable to open mesh file" << endl;
exit(0);
}
np = GmfStatKwd(inm, GmfVertices);
nt = GmfStatKwd(inm, GmfTriangles);
nn = GmfStatKwd(inm, GmfNormals);
nNAtV = GmfStatKwd(inm, GmfNormalAtVertices);
if ( !np ) {
cout << " ** MISSING DATA" << endl;
exit(0);
}
point.resize(np);
tria.resize(nt);
normal.resize(np);
NormalAtVertices.resize(nNAtV + 1);
GmfGotoKwd(inm,GmfVertices);
for (k=0; k<np; k++) {
ppt = &point[k];
if ( ver == GmfFloat ) {
GmfGetLin(inm,GmfVertices,&fp1,&fp2,&fp3,&ppt->ref);
ppt->c[0] = fp1;
ppt->c[1] = fp2;
ppt->c[2] = fp3;
}
else
GmfGetLin(inm,GmfVertices,&ppt->c[0],&ppt->c[1],&ppt->c[2],&ppt->ref);
}
GmfGotoKwd(inm,GmfTriangles);
for (k=0; k<nt; k++) {
pt = &tria[k];
GmfGetLin(inm,GmfTriangles,&pt->v[0],&pt->v[1],&pt->v[2],&pt->ref);
}
if ( nn ) {
GmfGotoKwd(inm,GmfNormals);
for (k=0; k<nn; k++) {
if ( ver == GmfFloat ) {
GmfGetLin(inm,GmfNormals,&fp1,&fp2,&fp3);
normal[k].n[0] = fp1;
normal[k].n[1] = fp2;
normal[k].n[2] = fp3;
}
else
GmfGetLin(inm,GmfNormals,&normal[k].n[0],&normal[k].n[1],&normal[k].n[2]);
n = normal[k].n;
dd = 1.0 / sqrt(n[0]*n[0] + n[1]*n[1] + n[2]*n[2]);
n[0] *= dd;
n[1] *= dd;
n[2] *= dd;
}
}
//VERTICES
int inv = ((pcv->profile.invertVertical)?-1:1);
for (int i = 0 ; i < point.size() ; i++) {
vertices.push_back( point[i].c[0]);
vertices.push_back(inv * point[i].c[1]);
vertices.push_back(inv * point[i].c[2]);
}
//INDICES
for (int i = 0 ; i < tria.size() ; i++) {
for(int j = 0 ; j < 3 ; j++)
indices.push_back(tria[i].v[j]-1);
}
//NORMALS
if ( nNAtV ) {
GmfGotoKwd(inm,GmfNormalAtVertices);
for (k=0; k<nNAtV; k++)
GmfGetLin(inm,GmfNormalAtVertices,
&NormalAtVertices[k].inds[0],
&NormalAtVertices[k].inds[1]);
}
for(int i = 0 ; i < vertices.size() ; i++) {
normals.push_back(0.0f);
}
for(int i = 0 ; i < NormalAtVertices.size() - 1 ; i++) {
int indV = NormalAtVertices[i].inds[0] - 1;
int indN = NormalAtVertices[i].inds[1] - 1;
normals[3 * indV + 0] = normal[indN].n[0];
normals[3 * indV + 1] = inv * normal[indN].n[1];
normals[3 * indV + 2] = inv * normal[indN].n[2];
}
GmfCloseMesh(inm);
break;
}
case CGL_PLANE: {
std::vector<float> vertices = {-1,0,1,
1,0,1,
1,0,-1,
-1,0,-1
};
std::vector<int> indices = {0,1,2,
1,2,3
};
std::vector<float> normals = { 0,1,0,
0,1,0
};
}
}
getBBOX(vertices);
computeBuffers();
//A récupérer par l'objet lors de la création
/*
center = glm::vec3(x,y,z);
MODEL[3] = glm::vec4(center,1);
*/
}
int main(int ArgCnt, char **ArgVec)
{
int i, NmbVer, NmbTet, ver=0, dim=0, ref, (*TetTab)[4]=NULL;
int VerIdx, TetIdx, MidIdx, CalMid, GpuIdx=0;
int64_t InpMsh;
float (*VerTab)[3]=NULL, (*MidTab)[4], dummy, chk=0.;
double GpuTim;
// If no arguments are give, print the help
if(ArgCnt == 1)
{
puts("\nTetrahedraBasicLoop GPU_index");
puts(" Choose GPU_index from the following list:");
GmlListGPU();
exit(0);
}
else
GpuIdx = atoi(ArgVec[1]);
/*--------------*/
/* MESH READING */
/*--------------*/
// Open the mesh
if( !(InpMsh = GmfOpenMesh("tetrahedra.meshb", GmfRead, &ver, &dim))
|| (ver != GmfFloat) || (dim != 3) )
{
puts("Could not open tetrahedra.meshb");
puts("Please run the command in the same directory this mesh is located");
return(1);
}
// Read the number of vertices and elements and allocate the memory
if( !(NmbVer = GmfStatKwd(InpMsh, GmfVertices)) \
|| !(VerTab = malloc((NmbVer+1) * 3 * sizeof(float))) )
{
return(1);
}
if( !(NmbTet = GmfStatKwd(InpMsh, GmfTetrahedra)) \
|| !(TetTab = malloc((NmbTet+1) * 4 * sizeof(int))) )
{
return(1);
}
// Read the vertices
GmfGotoKwd(InpMsh, GmfVertices);
for(i=1;i<=NmbVer;i++)
GmfGetLin(InpMsh, GmfVertices, &VerTab[i][0], &VerTab[i][1], &VerTab[i][2], &ref);
// Read the elements
GmfGotoKwd(InpMsh, GmfTetrahedra);
for(i=1;i<=NmbTet;i++)
GmfGetLin( InpMsh, GmfTetrahedra, &TetTab[i][0], &TetTab[i][1], \
&TetTab[i][2], &TetTab[i][3], &ref );
// And close the mesh
GmfCloseMesh(InpMsh);
/*---------------*/
/* GPU COMPUTING */
/*---------------*/
// Init the GMLIB and compile the OpenCL source code
if(!GmlInit(GpuIdx))
return(1);
if(!(CalMid = GmlNewKernel(TetrahedraBasicLoop, "TetrahedraBasic")))
return(1);
// Create a vertices data type and transfer the data to the GPU
if(!(VerIdx = GmlNewData(GmlVertices, NmbVer, 0, GmlInput)))
return(1);
for(i=1;i<=NmbVer;i++)
GmlSetVertex(VerIdx, i-1, VerTab[i][0], VerTab[i][1], VerTab[i][2]);
GmlUploadData(VerIdx);
// Do the same with the elements
if(!(TetIdx = GmlNewData(GmlTetrahedra, NmbTet, 0, GmlInput)))
return(1);
for(i=1;i<=NmbTet;i++)
GmlSetTetrahedron(TetIdx, i-1, TetTab[i][0]-1, TetTab[i][1]-1, \
TetTab[i][2]-1, TetTab[i][3]-1);
GmlUploadData(TetIdx);
// Create a raw datatype to store the element middles.
// It does not need to be tranfered to the GPU
if(!(MidIdx = GmlNewData(GmlRawData, NmbTet, sizeof(cl_float4), GmlOutput)))
return(1);
if(!(MidTab = malloc((NmbTet+1)*4*sizeof(float))))
return(1);
// Launch the kernel on the GPU
GpuTim = GmlLaunchKernel(CalMid, NmbTet, 3, TetIdx, MidIdx, VerIdx);
if(GpuTim < 0)
return(1);
/* Get the results back and print some stats */
GmlDownloadData(MidIdx);
for(i=1;i<=NmbTet;i++)
{
GmlGetRawData(MidIdx, i-1, MidTab[i]);
chk += sqrt(MidTab[i][0] * MidTab[i][0] \
+ MidTab[i][1] * MidTab[i][1] \
+ MidTab[i][2] * MidTab[i][2]);
}
printf("%d tet centers computed in %g seconds, %ld MB used, %ld MB transfered, checksum = %g\n",
NmbTet, GpuTim, GmlGetMemoryUsage()/1048576, GmlGetMemoryTransfer()/1048576, chk / NmbTet );
/*-----*/
/* END */
/*-----*/
GmlFreeData(VerIdx);
GmlFreeData(TetIdx);
GmlFreeData(MidIdx);
GmlStop();
free(MidTab);
free(TetTab);
free(VerTab);
return(0);
}