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Added Vertex Sampling option to the attribute transfer (useful for transferring attributes from vertex to vertex in the case of identical meshes)

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This commit is contained in:
Paolo Cignoni 2022-05-26 12:17:56 +02:00
parent 083145bbe9
commit b2e2ccff7e
1 changed files with 23 additions and 25 deletions
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48
src/meshlabplugins/filter_sampling/filter_sampling.cpp
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@ -127,46 +127,41 @@ public:
/* This sampler is used to transfer the detail of a mesh onto another one.
* It keep internally the spatial indexing structure used to find the closest point
* According to the kin of sampling is (vertexsampling or not) it uses a
*/
class LocalRedetailSampler
{
typedef GridStaticPtr<CMeshO::FaceType, CMeshO::ScalarType > MetroMeshGrid;
typedef GridStaticPtr<CMeshO::FaceType, CMeshO::ScalarType > FaceMeshGrid;
typedef GridStaticPtr<CMeshO::VertexType, CMeshO::ScalarType > VertexMeshGrid;
public:
LocalRedetailSampler():m(0) {}
CMeshO *m; /// the source mesh for which we search the closest points (e.g. the mesh from which we take colors etc).
CallBackPos *cb;
int sampleNum; // the expected number of samples. Used only for the callback
int sampleCnt;
MetroMeshGrid unifGridFace;
CMeshO *m=0; /// the source mesh for which we search the closest points (e.g. the mesh from which we take colors etc).
CallBackPos *cb=0;
int sampleNum=0; // the expected number of samples. Used only for the callback
int sampleCnt=0;
FaceMeshGrid unifGridFace;
VertexMeshGrid unifGridVert;
bool useVertexSampling;
bool useVertexSampling=false;
// Parameters
typedef tri::FaceTmark<CMeshO> MarkerFace;
MarkerFace markerFunctor;
bool coordFlag;
bool colorFlag;
bool normalFlag;
bool qualityFlag;
bool selectionFlag;
// what data has to be resampled
bool coordFlag=false;
bool colorFlag=false;
bool normalFlag=false;
bool qualityFlag=false;
bool selectionFlag=false;
bool storeDistanceAsQualityFlag;
float dist_upper_bound;
void init(CMeshO *_m, CallBackPos *_cb=0, int targetSz=0)
{
coordFlag=false;
colorFlag=false;
qualityFlag=false;
selectionFlag=false;
storeDistanceAsQualityFlag=false;
m=_m;
tri::UpdateNormal<CMeshO>::PerFaceNormalized(*m);
if(m->fn==0) useVertexSampling = true;
else useVertexSampling = false;
if(useVertexSampling) unifGridVert.Set(m->vert.begin(),m->vert.end());
else unifGridFace.Set(m->face.begin(),m->face.end());
@ -703,6 +698,9 @@ RichParameterList FilterDocSampling::initParameterList(const QAction *action, co
"The mesh that contains the source data that we want to transfer."));
parlst.addParam(RichMesh ("TargetMesh", vertexMesh->id(),&md, "Target Mesh",
"The mesh whose vertices will receive the data from the source."));
parlst.addParam(RichBool ("VertexSampling", false, "Vertex Sampling",
"if enabled for each vertex of the target mesh we search the closest vertex in the source mesh and directly copy the found attributes, otherwise we search for the closest point on the source surface that usually falls inside a face and attribute are therefore interpolated"));
parlst.addParam(RichBool ("GeomTransfer", false, "Transfer Geometry",
"if enabled, the position of each vertex of the target mesh will be snapped onto the corresponding closest point on the source mesh"));
parlst.addParam(RichBool ("NormalTransfer", false, "Transfer Normal",
@ -1259,6 +1257,7 @@ std::map<std::string, QVariant> FilterDocSampling::applyFilter(
bool qualityT = par.getBool("QualityTransfer");
bool selectionT = par.getBool("SelectionTransfer");
bool distquality = par.getBool("QualityDistance");
bool vertSampling = par.getBool("VertexSampling");
if (srcMesh == trgMesh){
log("Vertex Attribute Transfer: cannot compute, it is the same mesh");
@ -1291,8 +1290,7 @@ std::map<std::string, QVariant> FilterDocSampling::applyFilter(
tri::UpdateNormal<CMeshO>::PerFaceNormalized(srcMesh->cm);
LocalRedetailSampler rs;
rs.init(&(srcMesh->cm),cb,trgMesh->cm.vn);
rs.useVertexSampling = vertSampling;
rs.dist_upper_bound = upperbound;
rs.colorFlag = colorT;
rs.coordFlag = geomT;
@ -1300,7 +1298,8 @@ std::map<std::string, QVariant> FilterDocSampling::applyFilter(
rs.qualityFlag = qualityT;
rs.selectionFlag = selectionT;
rs.storeDistanceAsQualityFlag = distquality;
rs.init(&(srcMesh->cm),cb,trgMesh->cm.vn);
qDebug("apply: using vertex samping %s\n",rs.useVertexSampling?"True":"False");
if(rs.colorFlag) trgMesh->updateDataMask(MeshModel::MM_VERTCOLOR);
if(rs.qualityFlag || rs.storeDistanceAsQualityFlag)
trgMesh->updateDataMask(MeshModel::MM_VERTQUALITY);
@ -1390,7 +1389,6 @@ std::map<std::string, QVariant> FilterDocSampling::applyFilter(
typedef vcg::SpatialHashTable<CMeshO::VertexType, CMeshO::ScalarType> SampleSHT;
SampleSHT sht;
tri::EmptyTMark<CMeshO> markerFunctor;
typedef vcg::vertex::PointDistanceFunctor<float> VDistFunct;
tri::UpdateColor<CMeshO>::PerVertexConstant(mmM->cm, Color4b::LightGray);
tri::UpdateQuality<CMeshO>::VertexConstant(mmM->cm, std::numeric_limits<float>::max());
bool approximateGeodeticFlag = par.getBool("ApproximateGeodetic");