DGtal 1.3.0
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testSphereFitting.cpp
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1
31#include <iostream>
32#include "DGtal/base/Common.h"
33#include "DGtal/helpers/StdDefs.h"
34#include "DGtal/base/BasicFunctors.h"
35#include "DGtal/graph/GraphVisitorRange.h"
36#include "DGtal/io/boards/Board2D.h"
37#include "DGtal/io/Color.h"
38#include "DGtal/io/colormaps/GradientColorMap.h"
39
40#include "DGtal/shapes/Shapes.h"
41#include "DGtal/shapes/implicit/ImplicitBall.h"
42#include "DGtal/shapes/GaussDigitizer.h"
43
44#include "DGtal/topology/CanonicSCellEmbedder.h"
45#include "DGtal/graph/DistanceBreadthFirstVisitor.h"
46#include "DGtal/geometry/volumes/distance/ExactPredicateLpSeparableMetric.h"
47#include "DGtal/geometry/surfaces/estimation/LocalEstimatorFromSurfelFunctorAdapter.h"
48#include "DGtal/geometry/surfaces/estimation/estimationFunctors/BasicEstimatorFromSurfelsFunctors.h"
49#include "DGtal/topology/LightImplicitDigitalSurface.h"
50#include "DGtal/geometry/surfaces/estimation/estimationFunctors/SphereFittingEstimator.h"
51#include "DGtal/geometry/surfaces/estimation/estimationFunctors/ElementaryConvolutionNormalVectorEstimator.h"
52#include "DGtal/geometry/surfaces/estimation/EstimatorCache.h"
54
55using namespace std;
56using namespace DGtal;
57
59// Functions for testing class LocalEstimatorFromFunctorAdapter.
61
62
68{
69 unsigned int nbok = 0;
70 unsigned int nb = 0;
71 trace.beginBlock ( "Testing init ..." );
72
73 using namespace Z3i;
74
75 trace.beginBlock("Creating Surface");
76 Point p1( -20, -20, -20 );
77 Point p2( 20, 20, 20 );
78
79 ImplicitBall<Z3i::Space> shape( RealPoint(6.0,0,0), 4);
81 Gauss gauss;
82 gauss.attach(shape);
83 gauss.init(p1, p2, 1);
84
85 typedef LightImplicitDigitalSurface<KSpace, Gauss > SurfaceContainer;
87 typedef Surface::Surfel Surfel;
88
89
90 KSpace K;
91 nbok += K.init( p1, p2, true ) ? 1 : 0;
92 nb++;
93 trace.info() << "(" << nbok << "/" << nb << ") "
94 << "K.init() is ok" << std::endl;
95 Surfel bel = Surfaces<KSpace>::findABel( K, gauss, 10000 );
96 SurfaceContainer* surfaceContainer = new SurfaceContainer
97 ( K, gauss, SurfelAdjacency<KSpace::dimension>( true ), bel );
98 Surface surface( surfaceContainer ); // acquired
99 CanonicSCellEmbedder<KSpace> embedder(surface.container().space());
100 trace.endBlock();
101
102 trace.beginBlock("Normal vector field computation");
105 FunctorNormal,
106 DGtal::functors::GaussianKernel> ReporterNormal;
107 typedef EstimatorCache<ReporterNormal> NormalCache;
108
109 //estimator
110 DGtal::functors::GaussianKernel gaussKernelFunc(5.0);
111 FunctorNormal functorNormal(embedder, 1.0);
112 ReporterNormal reporterNormal;
113 reporterNormal.attach(surface);
114 reporterNormal.setParams(l2Metric, functorNormal, gaussKernelFunc, 5.0);
115
116 //caching normal field
117 NormalCache normalCache(reporterNormal);
118 normalCache.init( 1, surface.begin(), surface.end());
119 trace.info() << "Normal vector field cached... "<< normalCache << std::endl;
120 trace.endBlock();
121
122 trace.beginBlock("Creating sphere fitting adapter from normal vector field");
124 typedef functors::ConstValue< double > ConvFunctor;
126
127 Functor fitter(embedder,1.0, 5.0, normalCache);
128 ConvFunctor convFunc(1.0);
129 Reporter reporter;
130 reporter.attach(surface);
131 reporter.setParams(l2Metric, fitter , convFunc, 15.0);
132
133 reporter.init(1, surface.begin(), surface.end());
134 for(Surface::ConstIterator it = surface.begin(), ite=surface.end(); it!=ite; ++it)
135 {
136 Functor::Quantity val = reporter.eval( it );
137 trace.info() << "Fitting = "<<val.center <<" rad="<<val.radius<<std::endl;
138 }
139 trace.endBlock();
140
141
142 trace.endBlock();
143
144 nbok += true ? 1 : 0;
145 nb++;
146 trace.info() << "(" << nbok << "/" << nb << ") "
147 << "true == true" << std::endl;
148
149 return nbok == nb;
150}
151
153// Standard services - public :
154
155int main( int argc, char** argv )
156{
157 trace.beginBlock ( "Testing class SphereFitting" );
158 trace.info() << "Args:";
159 for ( int i = 0; i < argc; ++i )
160 trace.info() << " " << argv[ i ];
161 trace.info() << endl;
162
163 bool res = testFitting(); // && ... other tests
164 trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
165 trace.endBlock();
166 return res ? 0 : 1;
167}
168// //
Aim: Represents a set of n-1-cells in a nD space, together with adjacency relation between these cell...
DigitalSurfaceContainer::Surfel Surfel
DigitalSurfaceContainer::SurfelConstIterator ConstIterator
Aim: this class adapts any local surface estimator to cache the estimated values in a associative con...
Aim: A class for computing the Gauss digitization of some Euclidean shape, i.e. its intersection with...
void attach(ConstAlias< EuclideanShape > shape)
Aim: model of CEuclideanOrientedShape and CEuclideanBoundedShape concepts to create a ball in nD....
Definition: ImplicitBall.h:65
Aim: This class is a model of CCellularGridSpaceND. It represents the cubical grid as a cell complex,...
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 model of CDigitalSurfaceContainer which defines the digital surface as the boundary of an impl...
Aim: this class adapts any local functor on digital surface element to define a local estimator....
static SCell findABel(const KSpace &K, const PointPredicate &pp, unsigned int nbtries=1000)
Aim: Represent adjacencies between surfel elements, telling if it follows an interior to exterior ord...
void beginBlock(const std::string &keyword="")
std::ostream & emphase()
std::ostream & info()
double endBlock()
Aim: Define a simple functor that returns a constant value (0 by default).
Aim: Estimates normal vector by convolution of elementary normal vector to adjacent surfel.
Aim: Use Patate library to perform a local sphere fitting.
SH3::DigitalSurface Surface
ExactPredicateLpSeparableMetric< Space, 2 > L2Metric
Definition: StdDefs.h:199
DGtal is the top-level namespace which contains all DGtal functions and types.
Trace trace
Definition: Common.h:154
STL namespace.
Aim: A trivial embedder for signed cell, which corresponds to the canonic injection of cell centroids...
Represents a signed cell in a cellular grid space by its Khalimsky coordinates and a boolean value.
Aim: defines a functor on double numbers which corresponds to a Gaussian convolution kernel....
Z2i::RealPoint RealPoint
int main()
Definition: testBits.cpp:56
MyPointD Point
Definition: testClone2.cpp:383
InHalfPlaneBySimple3x3Matrix< Point, double > Functor
KSpace K
bool testFitting()