vcglib/apps/sample/trimesh_inertia/trimesh_inertia.cpp

76 lines
3.3 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2012 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
#include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import_off.h>
#include<vcg/complex/algorithms/inertia.h>
#include<vcg/complex/algorithms/create/platonic.h>
using namespace vcg;
using namespace std;
class MyEdge;
class MyFace;
class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType,
Use<MyEdge> ::AsEdgeType,
Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::FFAdj, face::Normal3f, face::VertexRef, face::BitFlags > {};
class MyEdge : public Edge<MyUsedTypes>{};
class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge> > {};
int main( int argc, char **argv )
{
MyMesh tet,oct,hex,dod,ico;
tri::Hexahedron(hex);
tri::Tetrahedron(tet);
tri::Octahedron(oct);
tri::Dodecahedron(dod);
tri::Icosahedron(ico);
Matrix44f ScaleM,TransM;
ScaleM.SetScale(1,2,1);
TransM.SetTranslate(1,1,1);
// tri::UpdatePosition<MyMesh>::Matrix(hex,ScaleM);
tri::UpdatePosition<MyMesh>::Matrix(hex,TransM);
tri::Inertia<MyMesh> I;
I.Compute(hex);
Point3f cc = I.CenterOfMass();
printf("Mass %f \n",I.Mass());
printf("CenterOfMass %f %f %f\n",cc[0],cc[1],cc[2]);
Matrix33f IT;
Point3f ITv;
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("InertiaTensor %f %f %f\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]);
return 0;
}