static unsigned char * rasterize( VoxelsIOPlugin * plugin, MeshModel & m )
{
size_t voxels_num = voxmap_size.X() * voxmap_size.Y() * voxmap_size.Z();
unsigned char * voxels = new unsigned char[ voxels_num * voxel_size ];
if( !voxels )
return NULL;
memset( voxels, 0, voxels_num * voxel_size );
vcg::Point3f
diff( vcg::Point3f( voxmap_size.X() / 2.f,
voxmap_size.Y() / 2.f,
voxmap_size.Z() / 2.f ) - m.cm.bbox.Center() ),
min( floorf( m.cm.bbox.min.X() ),
floorf( m.cm.bbox.min.Y() ),
floorf( m.cm.bbox.min.Z() ) ),
max( ceilf( m.cm.bbox.max.X() ),
ceilf( m.cm.bbox.max.Y() ),
ceilf( m.cm.bbox.max.Z() ) );
MeshEP mesh;
make_mesh( m, &mesh );
TriMeshGrid grid;
grid.Set( mesh.face.begin(), mesh.face.end() );
int slice_size = voxmap_size.Y() * voxmap_size.X();
TriMeshGrid::CoordType xyz;
for( xyz.Z() = min.Z() + .5f; xyz.Z() < max.Z(); xyz.Z() += 1.f )
{
for( xyz.Y() = min.Y() + .5f; xyz.Y() < max.Y(); xyz.Y() += 1.f )
for( xyz.X() = min.X() + .5f; xyz.X() < max.X(); xyz.X() += 1.f )
if( vcg::tri::Inside< TriMeshGrid, MeshEP >::Is_Inside( mesh,
grid,
xyz ) )
{
qint64 i =
static_cast<int>(xyz.Z() + diff.Z()) * slice_size +
static_cast<int>(xyz.Y() + diff.Y()) * voxmap_size.X() +
static_cast<int>(xyz.X() + diff.X());
memset( voxels + i * voxel_size, UCHAR_MAX, voxel_size );
}
std::cout << xyz.Z() << "/" << max.Z() << std::endl;
plugin->Log( "%f/%f", xyz.Z(), max.Z() );
}
return voxels;
}
// The Real Core Function doing the actual mesh processing.
// Move Vertex of a random quantity
bool ExtraSamplePlugin::applyFilter(QAction *action, MeshDocument &md, RichParameterSet & par, vcg::CallBackPos *cb)
{
switch(ID(action)) {
case FP_DECOMPOSER :
{
CMeshO &m = md.mm()->cm;
CutMesh cm;
vcg::tri::Append<CutMesh,CMeshO>::MeshCopy(cm,m);
vcg::tri::Allocator<CutMesh>::CompactEveryVector(cm);
vcg::tri::UpdateTopology<CutMesh>::FaceFace(cm);
vcg::tri::UpdateTopology<CutMesh>::VertexFace(cm);
vcg::tri::UpdateNormal<CutMesh>::PerFace(cm);
//Get Parameters
vcg::Point3f upperPoint = par.getPoint3f("upperPoint");
vcg::Point3f lowerPoint = par.getPoint3f("lowerPoint");
float dihedral = par.getDynamicFloat("dihedral");
float ambient = par.getDynamicFloat("ambient");
float geodesic = par.getDynamicFloat("geodesic");
float geomin = par.getDynamicFloat("geo-factor-min");
float geomax = par.getDynamicFloat("geo-factor-max");
float elength = par.getDynamicFloat("e-length");
CutMesh::FacePointer startFace = NULL;
CutMesh::FacePointer endFace = NULL;
//getting the closest faces to the passed point parameters
TriMeshGrid grid;
grid.Set(cm.face.begin(),cm.face.end());
vcg::Point3<CutMesh::ScalarType> closest;
float maxDist = cm.bbox.Diag();
float minDist;
startFace = vcg::tri::GetClosestFaceBase(cm, grid, upperPoint, maxDist, minDist, closest);
endFace = vcg::tri::GetClosestFaceBase(cm, grid, lowerPoint, maxDist, minDist, closest);
assert(startFace!=NULL && endFace!=NULL);
std::vector<CutVertex::VertexPointer> seedVec;
for(int i=0; i<3; i++)
seedVec.push_back(startFace->V(i));
//getting the geodesic distance from the start/end face and some other data
//that will be used in the weight computation
typename CutMesh::template PerFaceAttributeHandle <float> gfH1
= vcg::tri::Allocator<CutMesh>::template AddPerFaceAttribute<float>(cm, std::string("GeoDis1"));
vcg::tri::Geodesic<CutMesh>::Compute(cm, seedVec);
float max1=0.0f;
float maxq=0.0f;
//getting also the maximum perFaceQuality value
for(CutMesh::FaceIterator fit= cm.face.begin(); fit!=cm.face.end(); fit++){
if(fit->Q()>=maxq)
maxq=fit->Q();
gfH1[fit] = (fit->V(0)->Q()+fit->V(1)->Q()+fit->V(2)->Q())/3.0f;
if(gfH1[fit]>=max1)
max1=gfH1[fit];
}
//this functor will be used to compute edge weights on the dual graph
WeightFunctor<CutMesh> wf(ambient, dihedral, geodesic, elength, startFace, endFace, gfH1, max1, geomin, geomax, maxq);
//start actual computation
vcg::tri::GraphBuilder<CutMesh, WeightFunctor<CutMesh> >::Compute(cm, wf, startFace, endFace);
vcg::tri::Allocator<CutMesh>::DeletePerFaceAttribute(cm,gfH1);
vcg::tri::Append<CMeshO,CutMesh>::MeshCopy(m,cm);
return true;
}
}
return false;
}
