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Still improving the documentation of the samples

This commit is contained in:
Paolo Cignoni 2012-10-16 09:08:19 +00:00
parent ac9b6b16f2
commit 9ae5490a8b
7 changed files with 168 additions and 110 deletions
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2
apps/sample/common.pri
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@ -1,4 +1,4 @@
DEPENDPATH += . DEPENDPATH += . ../../..
INCLUDEPATH += . ../../.. INCLUDEPATH += . ../../..
CONFIG += console stl CONFIG += console stl
TEMPLATE = app TEMPLATE = app

26
apps/sample/sample.pro
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@ -1,22 +1,26 @@
TEMPLATE = subdirs TEMPLATE = subdirs
SUBDIRS = trimesh_base \ SUBDIRS = trimesh_base \
trimesh_topology \ trimesh_attribute \
trimesh_smooth \ trimesh_ball_pivoting \
trimesh_closest \
trimesh_copy \
trimesh_curvature \ trimesh_curvature \
trimesh_normal \
trimesh_inertia \
trimesh_refine \
trimesh_clustering \ trimesh_clustering \
trimesh_edge \
trimesh_ext_mc \
trimesh_hole \
trimesh_inertia \
trimesh_intersection \
trimesh_isosurface \ trimesh_isosurface \
trimesh_join \ trimesh_join \
trimesh_edge \ trimesh_normal \
trimesh_optional \ trimesh_optional \
trimesh_intersection \ trimesh_ray \
trimesh_ball_pivoting \ trimesh_refine \
trimesh_hole \
trimesh_sampling \ trimesh_sampling \
trimesh_smooth \
trimesh_topology \
polygonmesh_base \ polygonmesh_base \
aabb_binary_tree \ aabb_binary_tree
trimesh_attribute

8
apps/sample/trimesh_attribute/trimesh_attribute.cpp
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@ -34,11 +34,11 @@ Attributes are a simple mechanism to associate user-defined 'attributes' to the
class MyEdge; class MyEdge;
class MyFace; class MyFace;
class MyVertex; class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType, struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex> ::AsVertexType,
Use<MyFace> ::AsFaceType>{}; vcg::Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex< MyUsedTypes, vertex::Coord3f,vertex::Normal3f>{}; class MyVertex : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f,vcg::vertex::Normal3f>{};
class MyFace : public Face< MyUsedTypes, face::VertexRef, face::Normal3f> {}; class MyFace : public vcg::Face< MyUsedTypes, vcg::face::VertexRef, vcg::face::Normal3f> {};
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {}; class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};

14
apps/sample/trimesh_base/trimesh_base.cpp
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@ -44,13 +44,13 @@ This file contain a minimal example of the library
class MyEdge; class MyEdge;
class MyFace; class MyFace;
class MyVertex; class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType, struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex> ::AsVertexType,
Use<MyEdge> ::AsEdgeType, vcg::Use<MyEdge> ::AsEdgeType,
Use<MyFace> ::AsFaceType>{}; vcg::Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{}; class MyVertex : public vcg::Vertex<MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::FFAdj, face::VertexRef, face::BitFlags > {}; class MyFace : public vcg::Face< MyUsedTypes, vcg::face::FFAdj, vcg::face::VertexRef, vcg::face::BitFlags > {};
class MyEdge : public Edge<MyUsedTypes>{}; class MyEdge : public vcg::Edge<MyUsedTypes>{};
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {}; class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {};
int main( int argc, char **argv ) int main( int argc, char **argv )
@ -63,7 +63,7 @@ int main( int argc, char **argv )
MyMesh m; MyMesh m;
if(tri::io::ImporterOFF<MyMesh>::Open(m,argv[1])!=tri::io::ImporterOFF<MyMesh>::NoError) if(vcg::tri::io::ImporterOFF<MyMesh>::Open(m,argv[1])!=vcg::tri::io::ImporterOFF<MyMesh>::NoError)
{ {
printf("Error reading file %s\n",argv[1]); printf("Error reading file %s\n",argv[1]);
exit(0); exit(0);

35
apps/sample/trimesh_clustering/trimesh_clustering.cpp
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@ -20,6 +20,12 @@
* for more details. * * for more details. *
* * * *
****************************************************************************/ ****************************************************************************/
/*! \file trimesh_clustering.cpp
\ingroup code_sample
\brief a minimal example of a clustering based simplification
*/
#include<vcg/complex/complex.h> #include<vcg/complex/complex.h>
#include <vcg/complex/algorithms/update/bounding.h> #include <vcg/complex/algorithms/update/bounding.h>
@ -29,16 +35,16 @@
#include <vcg/complex/algorithms/clustering.h> #include <vcg/complex/algorithms/clustering.h>
// input output // input output
#include <wrap/io_trimesh/import_ply.h> #include <wrap/io_trimesh/import.h>
#include <wrap/io_trimesh/export_ply.h> #include <wrap/io_trimesh/export.h>
class MyFace; class MyFace;
class MyVertex; class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex>::AsVertexType, Use<MyFace>::AsFaceType>{}; struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex>::AsVertexType, vcg::Use<MyFace>::AsFaceType>{};
class MyVertex : public Vertex< MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{}; class MyVertex : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
class MyFace : public Face < MyUsedTypes, face::VertexRef, face::Normal3f, face::BitFlags > {}; class MyFace : public vcg::Face < MyUsedTypes, vcg::face::VertexRef, vcg::face::Normal3f, vcg::face::BitFlags > {};
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {}; class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};
int main(int argc, char **argv) int main(int argc, char **argv)
@ -46,9 +52,7 @@ int main(int argc, char **argv)
if(argc<3) if(argc<3)
{ {
printf( printf(
"\n trimesh_clustering ("__DATE__")\n" "Usage: trimesh_clustering filein.ply fileout.ply [opt] \n"
" Visual Computing Group I.S.T.I. C.N.R.\n"
"Usage: PlyRefine filein.ply fileout.ply [opt] \n"
"options: \n" "options: \n"
"-k cellnum approx number of cluster that should be defined; (default 10e5)\n" "-k cellnum approx number of cluster that should be defined; (default 10e5)\n"
"-s size in absolute units the size of the clustering cell (override the previous param)\n" "-s size in absolute units the size of the clustering cell (override the previous param)\n"
@ -57,15 +61,15 @@ int main(int argc, char **argv)
exit(0); exit(0);
} }
int i=3;
int CellNum=100000; int CellNum=100000;
float CellSize=0; float CellSize=0;
bool DupFace=false; bool DupFace=false;
int i=3;
while(i<argc) while(i<argc)
{ {
if(argv[i][0]!='-') if(argv[i][0]!='-')
{printf("Error unable to parse option '%s'\n",argv[i]); exit(0);} { printf("Error unable to parse option '%s'\n",argv[i]); exit(0); }
switch(argv[i][1]) switch(argv[i][1])
{ {
case 'k' : CellNum=atoi(argv[i+1]); ++i; printf("Using %i clustering cells\n",CellNum); break; case 'k' : CellNum=atoi(argv[i+1]); ++i; printf("Using %i clustering cells\n",CellNum); break;
@ -78,12 +82,12 @@ int main(int argc, char **argv)
} }
MyMesh m; MyMesh m;
if(vcg::tri::io::ImporterPLY<MyMesh>::Open(m,argv[1])!=0) if(vcg::tri::io::ImporterPLY<MyMesh>::Open(m,argv[1])!=0)
{ {
printf("Error reading file %s\n",argv[1]); printf("Error reading file %s\n",argv[1]);
exit(0); exit(0);
} }
vcg::tri::UpdateBounding<MyMesh>::Box(m); vcg::tri::UpdateBounding<MyMesh>::Box(m);
vcg::tri::UpdateNormal<MyMesh>::PerFace(m); vcg::tri::UpdateNormal<MyMesh>::PerFace(m);
printf("Input mesh vn:%i fn:%i\n",m.VN(),m.FN()); printf("Input mesh vn:%i fn:%i\n",m.VN(),m.FN());
@ -95,15 +99,10 @@ int main(int argc, char **argv)
printf("Grid of %i x %i x %i cells\n",Grid.Grid.siz[0],Grid.Grid.siz[1],Grid.Grid.siz[2]); printf("Grid of %i x %i x %i cells\n",Grid.Grid.siz[0],Grid.Grid.siz[1],Grid.Grid.siz[2]);
printf("with cells size of %.2f x %.2f x %.2f units\n",Grid.Grid.voxel[0],Grid.Grid.voxel[1],Grid.Grid.voxel[2]); printf("with cells size of %.2f x %.2f x %.2f units\n",Grid.Grid.voxel[0],Grid.Grid.voxel[1],Grid.Grid.voxel[2]);
int t0=clock();
Grid.AddMesh(m); Grid.AddMesh(m);
int t1=clock();
Grid.ExtractMesh(m); Grid.ExtractMesh(m);
int t2=clock();
printf("Output mesh vn:%i fn:%i\n",m.VN(),m.FN()); printf("Output mesh vn:%i fn:%i\n",m.VN(),m.FN());
printf("Simplified in :%i msec (%i+%i)\n",t2-t0,t1-t0,t2-t1);
vcg::tri::io::PlyInfo pi; vcg::tri::io::ExporterPLY<MyMesh>::Save(m,argv[2]);
vcg::tri::io::ExporterPLY<MyMesh>::Save(m,argv[2],pi.mask);
return 0; return 0;
} }

20
apps/sample/trimesh_curvature/trimesh_curvature.cpp
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@ -20,6 +20,14 @@
* for more details. * * for more details. *
* * * *
****************************************************************************/ ****************************************************************************/
/*! \file trimesh_curvature.cpp
\ingroup code_sample
\brief an example showing the various techniques for computing curvatures
This file contain a minimal example of the library
*/
#include<vcg/complex/complex.h> #include<vcg/complex/complex.h>
#include<wrap/io_trimesh/export_off.h> #include<wrap/io_trimesh/export_off.h>
@ -31,13 +39,13 @@
class MyEdge; class MyEdge;
class MyFace; class MyFace;
class MyVertex; class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType, struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex> ::AsVertexType,
Use<MyEdge> ::AsEdgeType, vcg::Use<MyEdge> ::AsEdgeType,
Use<MyFace> ::AsFaceType>{}; vcg::Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{}; class MyVertex : public vcg::Vertex<MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::FFAdj, face::VertexRef, face::BitFlags > {}; class MyFace : public vcg::Face< MyUsedTypes, vcg::face::FFAdj, vcg::face::VertexRef, vcg::face::BitFlags > {};
class MyEdge : public Edge<MyUsedTypes>{}; class MyEdge : public vcg::Edge<MyUsedTypes>{};
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {}; class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {};
int main( int argc, char **argv ) int main( int argc, char **argv )

111
apps/sample/trimesh_inertia/trimesh_inertia.cpp
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@ -20,6 +20,16 @@
* for more details. * * for more details. *
* * * *
****************************************************************************/ ****************************************************************************/
/*! \file trimesh_inertia.cpp
\ingroup code_sample
\brief An example of computing the inertia properties of meshes
Two meshes are created a rectangular box and a torus and their mass properties are computed and shown.
The result should match the closed formula for these objects (with a reasonable approximation)
*/
#include<vcg/complex/complex.h> #include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import_off.h> #include<wrap/io_trimesh/import_off.h>
@ -27,49 +37,86 @@
#include<vcg/complex/algorithms/inertia.h> #include<vcg/complex/algorithms/inertia.h>
#include<vcg/complex/algorithms/create/platonic.h> #include<vcg/complex/algorithms/create/platonic.h>
using namespace vcg;
using namespace std;
class MyEdge; class MyEdge;
class MyFace; class MyFace;
class MyVertex; class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType, struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex> ::AsVertexType,
Use<MyEdge> ::AsEdgeType, vcg::Use<MyEdge> ::AsEdgeType,
Use<MyFace> ::AsFaceType>{}; vcg::Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{}; class MyVertex : public vcg::Vertex<MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::FFAdj, face::Normal3f, face::VertexRef, face::BitFlags > {}; class MyFace : public vcg::Face< MyUsedTypes, vcg::face::FFAdj, vcg::face::Normal3f, vcg::face::VertexRef, vcg::face::BitFlags > {};
class MyEdge : public Edge<MyUsedTypes>{}; class MyEdge : public vcg::Edge<MyUsedTypes>{};
class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge> > {}; class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {};
int main( int argc, char **argv ) int main( int argc, char **argv )
{ {
MyMesh tet,oct,hex,dod,ico; MyMesh boxMesh,torusMesh;
vcg::Matrix33f IT;
vcg::Point3f ITv;
tri::Hexahedron(hex); vcg::tri::Hexahedron(boxMesh);
tri::Tetrahedron(tet); vcg::Matrix44f ScaleM,TransM;
tri::Octahedron(oct); ScaleM.SetScale(1.0f, 2.0f, 5.0f);
tri::Dodecahedron(dod); TransM.SetTranslate(2.0f,3.0f,4.0f);
tri::Icosahedron(ico); vcg::tri::UpdatePosition<MyMesh>::Matrix(boxMesh,ScaleM);
Matrix44f ScaleM,TransM; vcg::tri::UpdatePosition<MyMesh>::Matrix(boxMesh,TransM);
ScaleM.SetScale(1,2,1); vcg::tri::Inertia<MyMesh> Ib(boxMesh);
TransM.SetTranslate(1,1,1); vcg::Point3f cc = Ib.CenterOfMass();
// tri::UpdatePosition<MyMesh>::Matrix(hex,ScaleM); Ib.InertiaTensorEigen(IT,ITv);
tri::UpdatePosition<MyMesh>::Matrix(hex,TransM);
tri::Inertia<MyMesh> I; printf("Box of size 2,4,10, centered in (2,3,4)\n");
I.Compute(hex); printf("Volume %f \n",Ib.Mass());
Point3f cc = I.CenterOfMass();
printf("Mass %f \n",I.Mass());
printf("CenterOfMass %f %f %f\n",cc[0],cc[1],cc[2]); printf("CenterOfMass %f %f %f\n",cc[0],cc[1],cc[2]);
Matrix33f IT; printf("InertiaTensor Values %6.3f %6.3f %6.3f\n",ITv[0],ITv[1],ITv[2]);
Point3f ITv; printf("InertiaTensor Matrix\n");
I.InertiaTensorEigen(IT,ITv);
printf("InertiaTensor %f %f %f\n\n",ITv[0],ITv[1],ITv[2]);
printf("InertiaTensor %f %f %f\n",IT[0][0],IT[0][1],IT[0][2]); printf(" %6.3f %6.3f %6.3f\n",IT[0][0],IT[0][1],IT[0][2]);
printf("InertiaTensor %f %f %f\n",IT[1][0],IT[1][1],IT[1][2]); printf(" %6.3f %6.3f %6.3f\n",IT[1][0],IT[1][1],IT[1][2]);
printf("InertiaTensor %f %f %f\n",IT[2][0],IT[2][1],IT[2][2]); printf(" %6.3f %6.3f %6.3f\n",IT[2][0],IT[2][1],IT[2][2]);
// Now we have a box with sides (h,w,d) 2,4,10, centered in (2,3,4)
// Volume is 80
// inertia tensor should be:
// I_h = 1/12 m *(w^2+d^2) = 1/12 * 80 * (16+100) = 773.33
// I_w = 1/12 m *(h^2+d^2) = 1/12 * 80 * (4+100) = 693.33
// I_d = 1/12 m *(h^2+w^2) = 1/12 * 80 * (4+16) = 133.33
vcg::tri::Torus(torusMesh,2,1,1024,512);
vcg::tri::Inertia<MyMesh> It(torusMesh);
cc = It.CenterOfMass();
It.InertiaTensorEigen(IT,ITv);
printf("\nTorus of radius 2,1\n");
printf("Mass %f \n",It.Mass());
printf("CenterOfMass %f %f %f\n",cc[0],cc[1],cc[2]);
printf("InertiaTensor Values %6.3f %6.3f %6.3f\n",ITv[0],ITv[1],ITv[2]);
printf("InertiaTensor Matrix\n");
printf(" %6.3f %6.3f %6.3f\n",IT[0][0],IT[0][1],IT[0][2]);
printf(" %6.3f %6.3f %6.3f\n",IT[1][0],IT[1][1],IT[1][2]);
printf(" %6.3f %6.3f %6.3f\n",IT[2][0],IT[2][1],IT[2][2]);
/*
Now we have a torus with c = 2, a = 1
c = radius of the ring
a = radius of the section
Volume is:
V= 2 PI^2 * a^2 * c = ~39.478
Inertia tensor should be:
| ( 5/8 a^2 + 1/2 c^2 ) M 0 0 |
| 0 ( 5/8 a^2 + 1/2 c^2 ) M 0 | =
| 0 0 (3/4 a^2 + c^2) M |
| ( 5/8+2 ) M 0 0 | | 103.630 0 0 |
= | 0 ( 5/8+2 ) M 0 | = | 0 103.630 0 |
| 0 0 (3/4+2) M | | 0 0 187.52 |
*/
return 0; return 0;
} }