DGtal  1.0.0
testSphericalHoughNormalVectorEstimator.cpp File Reference
#include <iostream>
#include "DGtal/base/Common.h"
#include "ConfigTest.h"
#include "DGtalCatch.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/shapes/implicit/ImplicitHyperCube.h"
#include "DGtal/shapes/implicit/ImplicitBall.h"
#include "DGtal/shapes/GaussDigitizer.h"
#include "DGtal/topology/LightImplicitDigitalSurface.h"
#include "DGtal/topology/DigitalSurface.h"
#include "DGtal/topology/CanonicSCellEmbedder.h"
#include "DGtal/base/BasicFunctors.h"
#include "DGtal/geometry/volumes/distance/LpMetric.h"
#include "DGtal/geometry/surfaces/estimation/LocalEstimatorFromSurfelFunctorAdapter.h"
#include "DGtal/geometry/surfaces/estimation/estimationFunctors/SphericalHoughNormalVectorEstimator.h"
#include "DGtal/io/boards/Board3D.h"
Include dependency graph for testSphericalHoughNormalVectorEstimator.cpp:

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 TEST_CASE ("Testing SphericalHoughNormalVectorEstimator")

Detailed Description

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You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr ) Laboratoire d'InfoRmatique en Image et Systemes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Functions for testing class SphericalHoughNormalVectorEstimator.

This file is part of the DGtal library.

Definition in file testSphericalHoughNormalVectorEstimator.cpp.

Function Documentation


TEST_CASE ( "Testing SphericalHoughNormalVectorEstimator"  )

Definition at line 62 of file testSphericalHoughNormalVectorEstimator.cpp.

63 {
64  typedef ImplicitBall<Space> Shape;
65  typedef GaussDigitizer<Space,Shape> Gauss;
67  typedef LightImplicitDigitalSurface<KSpace,Gauss> SurfaceContainer;
68  typedef DigitalSurface<SurfaceContainer> Surface;
69  typedef Surface::Surfel Surfel;
72  Point p1( -50, -50, -50 );
73  Point p2( 50, 50, 50 );
74  KSpace K;
75  REQUIRE( K.init( p1, p2, true ) );
78  //Shape
79  Shape shape(RealPoint::diagonal(0.0), 10.0 );
80  Gauss gauss;
81  gauss.attach(shape);
82  gauss.init(p1,p2,1.0);
84  //Surface
85  Surfel bel = Surfaces<KSpace>::findABel( K, gauss, 10000 );
86  SurfaceContainer* surfaceContainer = new SurfaceContainer( K, gauss, SurfelAdjacency<KSpace::dimension>( true ), bel );
87  Surface surface( surfaceContainer ); // acquired
91  typedef functors::ConstValue<double> ConstFunctor;
92  typedef LocalEstimatorFromSurfelFunctorAdapter<SurfaceContainer, LpMetric<Z3i::Space>, SphericalHough, ConstFunctor> Reporter;
94  CanonicSCellEmbedder<KSpace> embedder(surface.container().space());
95  SphericalHough estimator(embedder,1.0 , 0.001, 1000 , 10, 1);
97  LpMetric<Z3i::Space> l2(2.0);
98  ConstFunctor constFunc(1.0);
99  Reporter reporter(surface, l2, estimator , constFunc);
100  reporter.attach(surface);
101  reporter.setParams(l2, estimator , constFunc, 10.0);
102  reporter.init(1, surface.begin(),surface.end());
104  REQUIRE( reporter.isValid() );
106  typedef Reporter::Quantity Quantity;
108  Quantity result = reporter.eval( surface.begin() );
109  trace.info() << "Result at begin = "<< result <<std::endl;
111  //true normal (implicitBall)
112  RealPoint res = embedder( *(surface.begin()) ).getNormalized();
113  trace.info() << "Expecting = "<< res <<std::endl;
115  REQUIRE( std::abs(result.dot(res)) > 0.9 );
119  int argc=0;
120  char **argv;
121  QApplication application(argc,argv);
123  viewer.show();
124  for(Surface::ConstIterator it = surface.begin(), itend=surface.end(); it != itend ;
125  ++it)
126  {
127  Quantity normal = reporter.eval( it );
128  viewer << CustomColors3D( DGtal::Color(static_cast<unsigned char>(255*abs(normal[0])),
129  static_cast<unsigned char>(255*abs(normal[1])),
130  static_cast<unsigned char>(255*abs(normal[2]))),
131  DGtal::Color(static_cast<unsigned char>(255*abs(normal[0])),
132  static_cast<unsigned char>(255*abs(normal[1])),
133  static_cast<unsigned char>(255*abs(normal[2]))));
135  viewer << K.unsigns(*it) ;
137  Point center = K.sCoords ( *it );
138  }
139  viewer<< Viewer3D<>::updateDisplay;
140  application.exec();
141 #endif
142 }
Aim: Define a simple functor that returns a constant value (0 by default).
Aim: A model of CDigitalSurfaceContainer which defines the digital surface as the boundary of an impl...
Aim: This functor estimates normal vector for a collection of surfels using spherical accumulator bas...
MyDigitalSurface::ConstIterator ConstIterator
Trace trace
Definition: Common.h:144
Aim: implements l_p metrics.
Definition: LpMetric.h:74
static Self diagonal(Component val=1)
Aim: A utility class for constructing surfaces (i.e. set of (n-1)-cells).
Definition: Surfaces.h:78
PointVector< dim, double, std::array< double, dim > > getNormalized() const
Aim: Represents a set of n-1-cells in a nD space, together with adjacency relation between these cell...
Cell unsigns(const SCell &p) const
Creates an unsigned cell from a signed one.
bool init(const Point &lower, const Point &upper, bool isClosed)
Specifies the upper and lower bounds for the maximal cells in this space.
Aim: A class for computing the Gauss digitization of some Euclidean shape, i.e. its intersection with...
Aim: model of CEuclideanOrientedShape and CEuclideanBoundedShape concepts to create a ball in nD....
Definition: ImplicitBall.h:64
Point sCoords(const SCell &c) const
Return its digital coordinates.
std::ostream & info()
Aim: this class adapts any local functor on digital surface element to define a local estimator....
Structure representing an RGB triple with alpha component.
Definition: Color.h:66
KSpace K
Aim: This class is a model of CCellularGridSpaceND. It represents the cubical grid as a cell complex,...

References DGtal::PointVector< 3, double >::diagonal(), DGtal::PointVector< dim, TEuclideanRing, TContainer >::getNormalized(), DGtal::Trace::info(), DGtal::KhalimskySpaceND< dim, TInteger >::init(), K, REQUIRE(), DGtal::KhalimskySpaceND< dim, TInteger >::sCoords(), DGtal::Viewer3D< TSpace, TKSpace >::show(), DGtal::trace, and DGtal::KhalimskySpaceND< dim, TInteger >::unsigns().