testParDirCollapse.cpp File Reference

#include <iostream>
#include "DGtal/base/Common.h"
#include "ConfigTest.h"
#include "DGtalCatch.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/topology/CubicalComplex.h"
#include "DGtal/topology/ParDirCollapse.h"
#include "DGtal/shapes/GaussDigitizer.h"
#include "DGtal/shapes/Shapes.h"
#include "DGtal/shapes/EuclideanShapesDecorator.h"
#include "DGtal/shapes/parametric/Flower2D.h"

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Functions
template<typename CC , typename KSpace >
void	getComplex (CC &complex, KSpace &K)
	TEST_CASE ("Testing ParDirCollapse")

Detailed Description

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/.

Author

Kacper Pluta (kacpe.nosp@m.r.pl.nosp@m.uta@e.nosp@m.siee.nosp@m..fr ) Laboratoire d'Informatique Gaspard-Monge - LIGM, France

Date

2016/01/16

Functions for testing class ParDirCollapse.

This file is part of the DGtal library.

Definition in file testParDirCollapse.cpp.

Function Documentation

getComplex()

template<typename CC , typename KSpace >

void getComplex	(	CC &	complex,
		KSpace &	K
	)

Definition at line 55 of file testParDirCollapse.cpp.

{
  typedef Flower2D< Space > MyEuclideanShape;
  MyEuclideanShape shape( RealPoint( 0.0, 0.0 ), 16, 5, 5, M_PI_2/2. );
 
  typedef GaussDigitizer< Space, MyEuclideanShape > MyGaussDigitizer;
  MyGaussDigitizer digShape;
  digShape.attach( shape );
  digShape.init ( shape.getLowerBound(), shape.getUpperBound(), 1.0 );
  Domain domainShape = digShape.getDomain();
  DigitalSet aSet( domainShape );
  Shapes<Domain>::digitalShaper( aSet, digShape );
 
  K.init ( domainShape.lowerBound(), domainShape.upperBound(), true );
  complex.clear();
  complex.construct ( aSet );
}

References DGtal::GaussDigitizer< TSpace, TEuclideanShape >::attach(), DGtal::CubicalComplex< TKSpace, TCellContainer >::clear(), DGtal::CubicalComplex< TKSpace, TCellContainer >::construct(), DGtal::KhalimskySpaceND< dim, TInteger >::init(), K, DGtal::HyperRectDomain< TSpace >::lowerBound(), and DGtal::HyperRectDomain< TSpace >::upperBound().

TEST_CASE()

TEST_CASE

(

"Testing ParDirCollapse"

)

Definition at line 73 of file testParDirCollapse.cpp.

{
  typedef map<Cell, CubicalCellData>   Map;
  typedef CubicalComplex< KSpace, Map >     CC;
  KSpace K;
  CC complex ( K );
  ParDirCollapse < CC > thinning ( K );
 
  SECTION("Testing the basic algorithm of ParDirCollapse")
    {
      getComplex< CC, KSpace > ( complex, K );
      int eulerBefore = complex.euler();
      thinning.attach ( &complex );
      REQUIRE( ( thinning.eval ( 2 ) != 0 ) );
      REQUIRE( (eulerBefore == complex.euler()) );
    }
 
  SECTION("Testing ParDirCollapse::collapseSurface")
    {
      getComplex< CC, KSpace > ( complex, K );
      int eulerBefore = complex.euler();
      thinning.attach ( &complex );
      thinning.collapseSurface ();
      REQUIRE( (eulerBefore == complex.euler()) );
    }
  SECTION("Testing ParDirCollapse::collapseIsthmus")
    {
      getComplex< CC, KSpace > ( complex, K );
      int eulerBefore = complex.euler();
      thinning.attach ( &complex );
      thinning.collapseIsthmus ();
      REQUIRE( (eulerBefore == complex.euler()) );
    }
}

References DGtal::ParDirCollapse< CC >::attach(), DGtal::ParDirCollapse< CC >::collapseIsthmus(), DGtal::ParDirCollapse< CC >::collapseSurface(), DGtal::CubicalComplex< TKSpace, TCellContainer >::euler(), DGtal::ParDirCollapse< CC >::eval(), K, REQUIRE(), and SECTION().