Voxelization

ChangeLog.md

@@ -2,6 +2,11 @@
 
 ## New Features / Critical Changes
 
+- *Shapes*
+
+  - Mesh Voxelizer using 6- or 26-separability templated
+    (DavidCoeurjolly, Monir Hadji,
+    [#1209](https://github.com/DGtal-team/DGtal/pull/1209))
 
 - *Topology Package*
  - Adding the half-edge data structure to represent arbitrary

examples/shapes/CMakeLists.txt

@@ -1,5 +1,6 @@
 SET(DGTAL_EXAMPLES_SRC
-	exampleEuclideanShapesDecorator
+  exampleEuclideanShapesDecorator
+  exampleMeshVoxelizer
 )
 
 FOREACH(FILE ${DGTAL_EXAMPLES_SRC})

examples/shapes/exampleMeshVoxelizer.cpp

@@ -0,0 +1,106 @@
+/**
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as
+ *  published by the Free Software Foundation, either version 3 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 for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ **/
+
+/**
+ * @file exampleMeshVoxelizer.cpp
+ * @ingroup Examples
+ * @author David Coeurjolly (\c [email protected] )
+ * Laboratoire d'InfoRmatique en Image et Systemes d'information - LIRIS (CNRS, UMR 5205), CNRS, France
+ *
+ * @date 2017/11/16
+ *
+ * An example file named exampleMeshVoxelizer
+ *
+ * This file is part of the DGtal library.
+ */
+
+
+/**
+ * \image html  resultCube.png  "Resulting digitization of a cube"
+ * 
+ *   \example shapes/exampleMeshVoxelizer.cpp
+ */
+
+///////////////////////////////////////////////////////////////////////////////
+#include <iostream>
+#include "ConfigExamples.h"
+#include "DGtal/helpers/StdDefs.h"
+#include "DGtal/base/Common.h"
+#include "DGtal/shapes/Mesh.h"
+#include "DGtal/shapes/MeshVoxelizer.h"
+#include "DGtal/io/boards/Board3D.h"
+///////////////////////////////////////////////////////////////////////////////
+
+using namespace std;
+using namespace DGtal;
+
+///////////////////////////////////////////////////////////////////////////////
+
+int main( )
+{
+  trace.beginBlock ( "Example MeshVoxelizer" );
+
+
+  //! [MeshVoxelizerCreatingMesh]
+  using namespace Z3i;
+  Mesh<Point> aMesh;
+
+  trace.info()<<"Creating a cube"<<std::endl;
+  //Creating a cube
+  aMesh.addVertex(Point(0,0,0));
+  aMesh.addVertex(Point(1,0,0));
+  aMesh.addVertex(Point(1,1,0));
+  aMesh.addVertex(Point(0,1,0));
+  aMesh.addVertex(Point(0,1,1));
+  aMesh.addVertex(Point(1,1,1));
+  aMesh.addVertex(Point(1,0,1));
+  aMesh.addVertex(Point(0,0,1));
+
+  aMesh.addQuadFace(0,1,2,3);
+  aMesh.addQuadFace(1,2,5,6);
+  aMesh.addQuadFace(7,6,5,4);
+  aMesh.addQuadFace(3,2,5,4);
+  aMesh.addQuadFace(0,3,4,7);
+  aMesh.addQuadFace(0,1,6,7);
+  //! [MeshVoxelizerCreatingMesh]
+
+
+  //! [MeshVoxelizerDig]
+  Domain domain(Point(0,0,0), Point(128,128,128));
+  DigitalSet outputSet(domain);
+
+  MeshVoxelizer<DigitalSet, 6> voxelizer;
+
+  trace.info()<<"Digitization..."<<std::endl;
+  voxelizer.voxelize(outputSet, aMesh, 15.0);
+
+  trace.info()<<"Got "<< outputSet.size() << " voxels."<<std::endl;
+  //! [MeshVoxelizerDig]
+
+  //! [MeshVoxelizerExport]
+  Board3D<> board;
+  for(auto voxel : outputSet)
+    board << voxel;
+  board.saveOBJ("voxelizedCube.obj");
+  //! [MeshVoxelizerExport]
+
+
+
+  trace.endBlock();
+  return 0;
+}
+//                                                                           //
+///////////////////////////////////////////////////////////////////////////////

src/Board/Shapes.cpp

@@ -1,4 +1,3 @@
-/* -*- mode: c++ -*- */
 /**
  * @file   Shapes.cpp
  * @author Sebastien Fourey <http://www.greyc.ensicaen.fr/~seb>
@@ -2078,30 +2077,7 @@ Rectangle::flushTikZ( std::ostream & stream,
     stream << "\\path[" << tikzProperties(transform) << "] ("
       << _path[0].x << ',' << _path[0].y << ')'
       << " rectangle ("
-      << _path[1].x << ',' << _path[3].y << ");" << std::endl;
-/*
-    if ( _path[0].y == _path[1].y ) {
-        stream << "<rect x=\"" << transform.mapX( _path[0].x ) << '"'
-        << " y=\"" << transform.mapY( _path[0].y )  << '"'
-        << " width=\"" << transform.scale( _path[1].x - _path[0].x ) << '"'
-        << " height=\"" << transform.scale( _path[0].y - _path[3].y ) << '"'
-        << svgProperties( transform )
-        << " />" << std::endl;
-    } else {
-        Point v = _path[1] - _path[0];
-        v /= v.norm();
-        double angle = ( _path[1].y > _path[0].y ) ? acos( v * Point(1,0) ) : -acos( v * Point( 1, 0 ) );
-        angle = ( angle * 180 ) / M_PI;
-        stream << "<rect x=\"" << transform.mapX( _path[0].x ) << '"'
-        << " y=\"" << transform.mapY( _path[0].y )  << '"'
-        << " width=\"" << transform.scale( (_path[1] - _path[0]).norm() ) << '"'
-        << " height=\"" << transform.scale( (_path[0] - _path[3]).norm() ) << '"'
-        << svgProperties( transform ) << ' '
-        << " transform=\"rotate(" << -angle << ", "
-        << transform.mapX( _path[0].x ) << ", " << transform.mapY( _path[0].y ) << ") \" "
-        << " />" << std::endl;
-    }
- */
+      << _path[1].x << ',' << _path[3].y << "); ";
 }
 
 /*

src/DGtal/doc/global.bib

@@ -1,9 +1,46 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+%% Misc
+
+@book{KletteRosenfeld_book,
+  author    = {Reinhard Klette and
+               Azriel Rosenfeld},
+  title     = {Digital geometry - geometric methods for digital picture analysis},
+  publisher = {Morgan Kaufmann},
+  year      = {2004},
+  isbn      = {978-1-55860-861-0},
+  timestamp = {Thu, 14 Apr 2011 14:43:22 +0200},
+  biburl    = {http://dblp.uni-trier.de/rec/bib/books/daglib/0013534},
+  bibsource = {dblp computer science bibliography, http://dblp.org}
+}
+
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
-%% Images
+%% Shapes Voxelization
+
+@article{Laine13,
+  added-at = {2013-08-18T00:00:00.000+0200},
+  author = {Laine, Samuli},
+  biburl = {http://www.bibsonomy.org/bibtex/270e10190a2b8fc35721e7e3e58be920c/dblp},
+  ee = {http://dx.doi.org/10.1111/cgf.12153},
+  interhash = {9327ac1bf79fa410ea45865566098671},
+  intrahash = {70e10190a2b8fc35721e7e3e58be920c},
+  journal = {Comput. Graph. Forum},
+  keywords = {dblp},
+  number = 4,
+  pages = {77-86},
+  timestamp = {2013-08-20T11:34:58.000+0200},
+  title = {A Topological Approach to Voxelization.},
+  url = {http://dblp.uni-trier.de/db/journals/cgf/cgf32.html#Laine13},
+  volume = 32,
+  year = 2013
+}
+
 
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+%% Images
+
 
 @Misc{belongieRot,
   author =    {Belongie, Serge},

src/DGtal/shapes/GaussDigitizer.h

@@ -88,12 +88,8 @@ namespace DGtal
     typedef HyperRectDomain<Space> Domain;
     typedef RegularPointEmbedder<Space> PointEmbedder;
 
-    // JOL: GaussDigitizer do not need a bounded shape.
-    // BOOST_CONCEPT_ASSERT(( CEuclideanBoundedShape<TEuclideanShape> ));
-
     BOOST_CONCEPT_ASSERT(( concepts::CEuclideanOrientedShape<TEuclideanShape> ));
-
-
+
     /**
      * Destructor.
      */