Added kdtree sample and updated a bit the comments of the other samples

This commit is contained in:
Paolo Cignoni 2012-10-24 09:40:15 +00:00
parent 84b9387264
commit 5adb83c8c9
6 changed files with 98 additions and 3 deletions

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@ -16,6 +16,7 @@ SUBDIRS = trimesh_base \
trimesh_intersection \
trimesh_isosurface \
trimesh_join \
trimesh_kdtree \
trimesh_normal \
trimesh_optional \
trimesh_ray \

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@ -27,7 +27,6 @@
Attributes are a simple mechanism to associate user-defined 'attributes' to the simplicies and to the mesh.
\ref attributes for more Details
*/
#include<vcg/complex/complex.h>

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@ -25,7 +25,7 @@
\brief the minimal example of using the lib
This file contain a minimal example of the library
This file contain a minimal example of the library, showing how to load a mesh and how to compute per vertex normals on it.
*/
@ -60,7 +60,8 @@ int main( int argc, char **argv )
printf("Usage trimesh_base <meshfilename.obj>\n");
return -1;
}
/*! we simply
*/
MyMesh m;
if(vcg::tri::io::ImporterOFF<MyMesh>::Open(m,argv[1])!=vcg::tri::io::ImporterOFF<MyMesh>::NoError)

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@ -0,0 +1,85 @@
/****************************************************************************
* 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. *
* *
****************************************************************************/
/*! \file trimesh_kdtree.cpp
\ingroup code_sample
\brief An example about using the kdtree and meshes
KdTree are one of the Spatial indexing data structure available.
They are tailored for storing point-based structures and performing k-neighbours queries.
In this simple example we simply compute the average distance of a vertex from its neighbours.
\ref spatial_indexing for more Details
*/
#include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import.h>
#include<wrap/io_trimesh/export.h>
#include <vcg/space/index/kdtree/kdtree.h>
#include<vcg/complex/algorithms/update/normal.h>
#include<vcg/complex/algorithms/update/color.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::Qualityf, vertex::Color4b, vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, 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 )
{
if(argc<2) argv[1]="../../meshes/torus_irregular.ply";
MyMesh m;
if(tri::io::Importer<MyMesh>::Open(m,argv[1])!=0)
{
printf("Error reading file %s\n",argv[1]);
exit(0);
}
VertexConstDataWrapper<MyMesh> ww(m);
KdTree<float> tree(ww);
tree.setMaxNofNeighbors(3);
for (int j = 0; j < m.VN(); j++) {
tree.doQueryK(m.vert[j].cP());
int neighbours = tree.getNofFoundNeighbors();
float avgDist=0;
for (int i = 0; i < neighbours; i++) {
int neightId = tree.getNeighborId(i);
avgDist+=Distance(m.vert[j].cP(),m.vert[neightId].cP());
}
m.vert[j].Q() = avgDist/=neighbours;
}
tri::UpdateColor<MyMesh>::PerVertexQualityRamp(m);
tri::io::ExporterPLY<MyMesh>::Save(m,"out.ply",tri::io::Mask::IOM_VERTCOLOR+tri::io::Mask::IOM_VERTQUALITY);
return 0;
}

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@ -0,0 +1,3 @@
include(../common.pri)
TARGET = trimesh_kdtree
SOURCES += trimesh_kdtree.cpp ../../../wrap/ply/plylib.cpp

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@ -20,6 +20,12 @@
* for more details. *
* *
****************************************************************************/
/*! \file trimesh_normal.cpp
\ingroup code_sample
\brief An example of all the methods for computing normals over a mesh.
*/
#include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import_off.h>