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lscm parametrization filter

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This commit is contained in:
alemuntoni 2021-12-13 13:07:32 +01:00
parent 1263a6362b
commit a53ac8cd49
3 changed files with 57 additions and 8 deletions
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9
src/common/utilities/eigen_mesh_conversions.h
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@ -31,9 +31,12 @@
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 1> EigenVectorXm;
typedef Eigen::Matrix<bool, Eigen::Dynamic, 1> EigenVectorXb;
typedef Eigen::Matrix<unsigned int, Eigen::Dynamic, 1> EigenVectorXui;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 2> EigenMatrixX2m;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 3> EigenMatrixX3m;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 4> EigenMatrixX4m;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 2> EigenMatrixX2m;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 3> EigenMatrixX3m;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, 4> EigenMatrixX4m;
typedef Eigen::Matrix<Scalarm, Eigen::Dynamic, Eigen::Dynamic> EigenMatrixXm;
namespace meshlab {

52
src/meshlabplugins/filter_parametrization/filter_parametrization.cpp
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@ -27,11 +27,12 @@
#include <igl/boundary_loop.h>
#include <igl/harmonic.h>
#include <igl/lscm.h>
#include <igl/map_vertices_to_circle.h>
FilterParametrizationPlugin::FilterParametrizationPlugin()
{
typeList = { FP_HARMONIC_PARAM};
{
typeList = { FP_HARMONIC_PARAM, FP_LEAST_SQUARES_PARAM};
for(const ActionIDType& tt : typeList)
actionList.push_back(new QAction(filterName(tt), this));
@ -52,6 +53,8 @@ QString FilterParametrizationPlugin::filterName(ActionIDType filterId) const
switch(filterId) {
case FP_HARMONIC_PARAM :
return "Harmonic Parametrization";
case FP_LEAST_SQUARES_PARAM:
return "Least Squares Conformal Maps Parametrization";
default :
assert(0);
return "";
@ -63,6 +66,8 @@ QString FilterParametrizationPlugin::filterInfo(ActionIDType filterId) const
switch(filterId) {
case FP_HARMONIC_PARAM :
return "";
case FP_LEAST_SQUARES_PARAM:
return "";
default :
assert(0);
return "Unknown Filter";
@ -73,6 +78,7 @@ FilterParametrizationPlugin::FilterClass FilterParametrizationPlugin::getClass(c
{
switch(ID(a)) {
case FP_HARMONIC_PARAM :
case FP_LEAST_SQUARES_PARAM:
return FilterPlugin::Texture;
default :
assert(0);
@ -100,12 +106,15 @@ int FilterParametrizationPlugin::postCondition(const QAction*) const
return MeshModel::MM_VERTTEXCOORD;
}
RichParameterList FilterParametrizationPlugin::initParameterList(const QAction *action, const MeshModel &m)
RichParameterList FilterParametrizationPlugin::initParameterList(const QAction *action, const MeshModel &)
{
RichParameterList parlst;
switch(ID(action)) {
case FP_HARMONIC_PARAM :
parlst.addParam(RichInt("harm_function", 1,"N-Harmonic Function", "1 denotes harmonic function, 2 biharmonic, 3 triharmonic, etc."));
break;
case FP_LEAST_SQUARES_PARAM:
break;
default :
assert(0);
@ -134,7 +143,10 @@ std::map<std::string, QVariant> FilterParametrizationPlugin::applyFilter(
Eigen::VectorXi bnd;
igl::boundary_loop(faces,bnd);
igl::map_vertices_to_circle(verts,bnd,bnd_uv);
if (bnd.size() == 0)
throw MLException(
"Harmonic Parametrization can be applied only on meshes that have a boundary.");
igl::map_vertices_to_circle(verts, bnd, bnd_uv);
igl::harmonic(verts,faces,bnd,bnd_uv,1,V_uv);
unsigned int i = 0;
@ -146,6 +158,38 @@ std::map<std::string, QVariant> FilterParametrizationPlugin::applyFilter(
break;
}
case FP_LEAST_SQUARES_PARAM: {
EigenMatrixX3m v = meshlab::vertexMatrix(md.mm()->cm);
Eigen::MatrixX3d verts = v.cast<double>();
Eigen::MatrixX3i faces = meshlab::faceMatrix(md.mm()->cm);
Eigen::VectorXi bnd, boundaryPoints(2, 1);
Eigen::MatrixXd V_uv;
igl::boundary_loop(faces,bnd);
if (bnd.size() == 0)
throw MLException(
"Least Squares Conformal Maps Parametrization can be applied only on meshes that "
"have a boundary.");
boundaryPoints(0) = bnd(0);
boundaryPoints(1) = bnd(bnd.size()/2);
Eigen::MatrixXd bc(2,2);
bc<<0,0,1,0;
// LSCM parametrization
igl::lscm(verts,faces,boundaryPoints,bc,V_uv);
unsigned int i = 0;
for (auto& v : md.mm()->cm.vert){
v.T().u() =V_uv(i, 0);
v.T().v() =V_uv(i, 1);
i++;
}
break;
}
default :
wrongActionCalled(action);
}

4
src/meshlabplugins/filter_parametrization/filter_parametrization.h
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@ -35,7 +35,9 @@ class FilterParametrizationPlugin : public QObject, public FilterPlugin
public:
//enum used to give an ID to every filter implemented in the plugin
enum FileterIds {FP_HARMONIC_PARAM};
enum FileterIds {
FP_HARMONIC_PARAM,
FP_LEAST_SQUARES_PARAM};
FilterParametrizationPlugin();