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Commit 7ceecc0e authored by Pierre Kraemer's avatar Pierre Kraemer
Browse files

remeshing -> feature preservation v1

parent 48c2a09d
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Apps/Examples/miniTest.cpp
View file @ 7ceecc0e
......@@ -44,8 +44,7 @@
#include "Algo/Modelisation/subdivision.h"
#include "Algo/Decimation/decimation.h"
#include "Algo/Remeshing/pliant.h"
#include "Algo/Selection/raySelector.h"
#include "Algo/Geometry/feature.h"
using namespace CGoGN ;
......@@ -98,8 +97,6 @@ public:
Algo::Render::VBO::topo_VBORenderMapD* topo_render ;
GLuint dl_norm, dl_lapl ;
Dart selectedDart ;
MyGlutWin(int* argc, char **argv, int winX, int winY) ;
void init() ;
......@@ -310,8 +307,6 @@ MyGlutWin::MyGlutWin(int* argc, char **argv, int winX, int winY) :
shaders[0].loadShaders("phong_vs.txt", "phong_ps.txt") ;
shaders[1].loadShaders("flat_vs.txt", "flat_ps.txt", "flat_gs.txt") ;
}
selectedDart = Dart::nil() ;
}
void MyGlutWin::init()
......@@ -359,22 +354,6 @@ void MyGlutWin::myRedraw()
glScalef(sc, sc, sc) ;
glTranslatef(-gPosObj[0], -gPosObj[1], -gPosObj[2]) ;
if(!selectedDart.isNil())
{
glDisable(GL_LIGHTING) ;
glColor3f(1.0f,0.0f,0.0f) ;
glLineWidth(3.0f) ;
PFP::VEC3 c = Algo::Geometry::faceCentroid<PFP>(myMap, selectedDart, position) ;
PFP::VEC3 p1 = position[selectedDart] ;
PFP::VEC3 p2 = position[myMap.phi1(selectedDart)] ;
p1 += PFP::REAL(0.1) * (c - p1) ;
p2 += PFP::REAL(0.1) * (c - p2) ;
glBegin(GL_LINES) ;
glVertex3fv(p1.data()) ;
glVertex3fv(p2.data()) ;
glEnd() ;
}
if (renderTopo)
{
glDisable(GL_LIGHTING);
......@@ -668,31 +647,6 @@ void MyGlutWin::myKeyboard(unsigned char keycode, int x, int y)
break ;
}
case '0':
{
GLint t1 = glutGet(GLUT_ELAPSED_TIME) ;
Algo::Modelisation::reverseOrientation<PFP>(myMap) ;
GLint t2 = glutGet(GLUT_ELAPSED_TIME) ;
GLfloat seconds = (t2 - t1) / 1000.0f ;
std::cout << "pliant remeshing: "<< seconds << "sec" << std::endl ;
t1 = glutGet(GLUT_ELAPSED_TIME) ;
updateVBOprimitives(Algo::Render::VBO::TRIANGLES | Algo::Render::VBO::LINES | Algo::Render::VBO::POINTS) ;
updateVBOdata(Algo::Render::VBO::POSITIONS | Algo::Render::VBO::NORMALS) ;
topo_render->updateData<PFP>(myMap, position, 0.9f, 0.9f) ;
t2 = glutGet(GLUT_ELAPSED_TIME) ;
seconds = (t2 - t1) / 1000.0f ;
std::cout << "display update: "<< seconds << "sec" << std::endl ;
glutPostRedisplay() ;
break ;
}
case '9':
{
CellMarker markVisit(myMap, VERTEX_CELL) ;
......@@ -752,37 +706,6 @@ void MyGlutWin::myKeyboard(unsigned char keycode, int x, int y)
break ;
}
case 'i':
{
glPushMatrix();
float sc = 50.0f / gWidthObj ;
glScalef(sc, sc, sc) ;
glTranslatef(-gPosObj[0], -gPosObj[1], -gPosObj[2]) ;
PFP::VEC3 rayA, rayB ;
getOrthoScreenRay(x, y, rayA, rayB) ;
PFP::VEC3 AB = rayB - rayA ;
std::vector<Dart> darts ;
Algo::Selection::dartsRaySelection<PFP>(myMap, position, rayA, AB, darts) ;
glPopMatrix();
if(!darts.empty())
{
selectedDart = darts[0] ;
std::cout << "selected dart -> " << selectedDart << std::endl ;
std::cout << " phi1 -> " << myMap.phi1(selectedDart) << " / phi2 -> " << myMap.phi2(selectedDart) << std::endl ;
std::cout << " emb0 -> " << myMap.getDartEmbedding(VERTEX_ORBIT, selectedDart) << std::endl ;
}
else
selectedDart = Dart::nil() ;
glutPostRedisplay() ;
break ;
}
case 'a':
{
Algo::Geometry::computeLaplacianVertices<PFP>(myMap, Algo::Geometry::TOPOLOGICAL, position, laplacian) ;
......
include/Algo/Geometry/centroid.hpp
View file @ 7ceecc0e
......@@ -119,7 +119,7 @@ EMB vertexNeighborhoodCentroidGen(typename PFP::MAP& map, Dart d, const EMBV& at
Dart it = d ;
do
{
center += attributs[map.phi2(it)];
center += attributs[map.phi1(it)];
++count ;
it = map.alpha1(it) ;
} while(it != d) ;
......
include/Algo/Geometry/localFrame.h
View file @ 7ceecc0e
......@@ -44,8 +44,8 @@ namespace Geometry
template <typename PFP>
void vertexLocalFrame(typename PFP::MAP& map, Dart d, const typename PFP::TVEC3& position, typename PFP::VEC3& X, typename PFP::VEC3& Y, typename PFP::VEC3& Z)
{
Z = vertexNormal<PFP>(map,d,position) ;
X = vectorOutOfDart<PFP>(map,d,position) ;
Z = vertexNormal<PFP>(map, d, position) ;
X = vectorOutOfDart<PFP>(map, d, position) ;
Y = Z ^ X ;
Y.normalize() ;
X = Y ^ Z ;
......@@ -56,7 +56,7 @@ template <typename PFP>
typename PFP::MATRIX33 vertexLocalFrame(typename PFP::MAP& map, Dart d, const typename PFP::TVEC3& position)
{
typename PFP::VEC3 X, Y, Z ;
vertexLocalFrame<PFP>(map,d,position,X,Y,Z) ;
vertexLocalFrame<PFP>(map, d, position, X, Y, Z) ;
typename PFP::MATRIX33 frame ;
frame(0,0) = X[0] ; frame(0,1) = X[1] ; frame(0,2) = X[2] ;
frame(1,0) = Y[0] ; frame(1,1) = Y[1] ; frame(1,2) = Y[2] ;
......@@ -70,7 +70,7 @@ template <typename PFP>
void vertexLocalFrame(typename PFP::MAP& map, Dart d, const typename PFP::TVEC3& position, typename PFP::VEC3& normal, typename PFP::VEC3& X, typename PFP::VEC3& Y, typename PFP::VEC3& Z)
{
Z = normal ;
X = vectorOutOfDart<PFP>(map,d,position) ;
X = vectorOutOfDart<PFP>(map, d, position) ;
Y = Z ^ X ;
Y.normalize() ;
X = Y ^ Z ;
......@@ -81,7 +81,7 @@ template <typename PFP>
typename PFP::MATRIX33 vertexLocalFrame(typename PFP::MAP& map, Dart d, const typename PFP::TVEC3& position, typename PFP::VEC3& normal)
{
typename PFP::VEC3 X, Y, Z ;
vertexLocalFrame<PFP>(map,d,position,normal,X,Y,Z) ;
vertexLocalFrame<PFP>(map, d, position, normal, X, Y, Z) ;
typename PFP::MATRIX33 frame ;
frame(0,0) = X[0] ; frame(0,1) = X[1] ; frame(0,2) = X[2] ;
frame(1,0) = Y[0] ; frame(1,1) = Y[1] ; frame(1,2) = Y[2] ;
......
include/Algo/Remeshing/pliant.h
View file @ 7ceecc0e
......@@ -22,6 +22,9 @@
* *
*******************************************************************************/
#ifndef __ALGO_GEOMETRY_REMESHING_H__
#define __ALGO_GEOMETRY_REMESHING_H__
namespace CGoGN
{
......@@ -42,3 +45,4 @@ void pliantRemeshing(typename PFP::MAP& map, typename PFP::TVEC3& position, type
#include "Algo/Remeshing/pliant.hpp"
#endif
include/Algo/Remeshing/pliant.hpp
View file @ 7ceecc0e
......@@ -23,6 +23,7 @@
*******************************************************************************/
#include "Algo/Geometry/basic.h"
#include "Algo/Geometry/feature.h"
namespace CGoGN
{
......@@ -73,65 +74,102 @@ void pliantRemeshing(typename PFP::MAP& map, typename PFP::TVEC3& position, type
map.cutEdge(d) ;
position[map.phi1(d)] = p ;
map.splitFace(map.phi1(d), map.phi_1(d)) ;
map.splitFace(map.phi1(dd), map.phi_1(dd)) ;
if(dd != d)
map.splitFace(map.phi1(dd), map.phi_1(dd)) ;
}
}
}
// collapse short edges
// compute feature edges
DartMarker featureEdge(map) ;
Algo::Geometry::featureEdgeDetection<PFP>(map, position, featureEdge) ;
// compute feature vertices
CellMarker featureVertex(map, VERTEX_ORBIT) ;
CellMarker cornerVertex(map, VERTEX_ORBIT) ;
DartMarker m3(map) ;
for(Dart d = map.begin(); d != map.end(); map.next(d))
{
if(!m3.isMarked(d))
{
m3.markOrbit(EDGE_ORBIT, d) ;
REAL length = Algo::Geometry::edgeLength<PFP>(map, d, position) ;
if(length < edgeLengthInf && map.edgeCanCollapse(d))
m3.markOrbit(VERTEX_ORBIT, d) ;
unsigned int nbFeatureEdges = 0 ;
Dart vit = d ;
do
{
bool collapse = true ;
Dart dd = map.phi2(d) ;
VEC3 p = position[dd] ;
Dart vit = map.alpha1(d) ;
do
{
VEC3 vec = position[dd] - position[map.phi1(vit)] ;
if(vec.norm() > edgeLengthSup)
collapse = false ;
vit = map.alpha1(vit) ;
} while(vit != d && collapse) ;
if(collapse)
if(featureEdge.isMarked(vit))
++nbFeatureEdges ;
vit = map.alpha1(vit) ;
} while(vit != d) ;
if(nbFeatureEdges > 0)
{
if(nbFeatureEdges == 2)
featureVertex.mark(d) ;
else
cornerVertex.mark(d) ;
}
}
}
// collapse short
for(Dart d = map.begin(); d != map.end(); map.next(d))
{
if(m3.isMarked(d))
{
m3.unmarkOrbit(EDGE_ORBIT, d) ;
Dart d1 = map.phi1(d) ;
if(!cornerVertex.isMarked(d) && !cornerVertex.isMarked(d1) &&
( (featureVertex.isMarked(d) && featureVertex.isMarked(d1)) || (!featureVertex.isMarked(d) && !featureVertex.isMarked(d1)) ))
{
REAL length = Algo::Geometry::edgeLength<PFP>(map, d, position) ;
if(length < edgeLengthInf && map.edgeCanCollapse(d))
{
Dart v = map.collapseEdge(d) ;
position[v] = p ;
bool collapse = true ;
VEC3 p = position[d1] ;
Dart vit = map.alpha1(d) ;
do
{
VEC3 vec = position[d1] - position[map.phi1(vit)] ;
if(vec.norm() > edgeLengthSup)
collapse = false ;
vit = map.alpha1(vit) ;
} while(vit != d && collapse) ;
if(collapse)
{
Dart v = map.collapseEdge(d) ;
position[v] = p ;
}
}
}
}
}
// equalize valences with edge flips
DartMarker m4(map) ;
for(Dart d = map.begin(); d != map.end(); map.next(d))
{
if(!m4.isMarked(d))
if(!m3.isMarked(d))
{
m4.markOrbit(EDGE_ORBIT, d) ;
m3.markOrbit(EDGE_ORBIT, d) ;
Dart e = map.phi2(d) ;
unsigned int w = map.vertexDegree(d) ;
unsigned int x = map.vertexDegree(e) ;
unsigned int y = map.vertexDegree(map.phi1(map.phi1(d))) ;
unsigned int z = map.vertexDegree(map.phi1(map.phi1(e))) ;
int flip = 0 ;
flip += w > 6 ? 1 : (w < 6 ? -1 : 0) ;
flip += x > 6 ? 1 : (x < 6 ? -1 : 0) ;
flip += y < 6 ? 1 : (y > 6 ? -1 : 0) ;
flip += z < 6 ? 1 : (z > 6 ? -1 : 0) ;
if(flip > 1)
if(!featureEdge.isMarked(d) && e != d)
{
map.flipEdge(d) ;
m4.markOrbit(EDGE_ORBIT, map.phi1(d)) ;
m4.markOrbit(EDGE_ORBIT, map.phi_1(d)) ;
m4.markOrbit(EDGE_ORBIT, map.phi1(e)) ;
m4.markOrbit(EDGE_ORBIT, map.phi_1(e)) ;
unsigned int w = map.vertexDegree(d) ;
unsigned int x = map.vertexDegree(e) ;
unsigned int y = map.vertexDegree(map.phi1(map.phi1(d))) ;
unsigned int z = map.vertexDegree(map.phi1(map.phi1(e))) ;
int flip = 0 ;
flip += w > 6 ? 1 : (w < 6 ? -1 : 0) ;
flip += x > 6 ? 1 : (x < 6 ? -1 : 0) ;
flip += y < 6 ? 1 : (y > 6 ? -1 : 0) ;
flip += z < 6 ? 1 : (z > 6 ? -1 : 0) ;
if(flip > 1)
{
map.flipEdge(d) ;
m3.markOrbit(EDGE_ORBIT, map.phi1(d)) ;
m3.markOrbit(EDGE_ORBIT, map.phi_1(d)) ;
m3.markOrbit(EDGE_ORBIT, map.phi1(e)) ;
m3.markOrbit(EDGE_ORBIT, map.phi_1(e)) ;
}
}
}
}
......@@ -149,10 +187,13 @@ void pliantRemeshing(typename PFP::MAP& map, typename PFP::TVEC3& position, type
if(!vm.isMarked(d))
{
vm.mark(d) ;
VEC3 l = position[d] - centroid[d] ;
REAL e = l * normal[d] ;
VEC3 displ = e * normal[d] ;
position[d] = centroid[d] + displ ;
if(!cornerVertex.isMarked(d) && !featureVertex.isMarked(d) && !map.isBoundaryVertex(d))
{
VEC3 l = position[d] - centroid[d] ;
REAL e = l * normal[d] ;
VEC3 displ = e * normal[d] ;
position[d] = centroid[d] + displ ;
}
}
}
......
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