DGtal  1.3.beta
testBinomialConvolver.cpp
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1 
30 #include <iostream>
32 #include "DGtal/base/Common.h"
33 #include "DGtal/kernel/PointVector.h"
34 #include "DGtal/geometry/curves/BinomialConvolver.h"
35 #include "DGtal/geometry/curves/estimation/CCurveLocalGeometricEstimator.h"
37 
38 using namespace std;
39 using namespace DGtal;
40 
42 // Functions for testing class Signal.
44 
49 {
50  trace.beginBlock ( "Testing block ..." );
52  std::vector< RealPoint > points;
53  points.push_back( RealPoint( { 0.0, 0.0 } ) );
54  points.push_back( RealPoint( { 1.0, 0.0 } ) );
55  points.push_back( RealPoint( { 2.0, 0.0 } ) );
56  points.push_back( RealPoint( { 2.0, 1.0 } ) );
57  points.push_back( RealPoint( { 2.0, 2.0 } ) );
58  points.push_back( RealPoint( { 1.0, 2.0 } ) );
59  points.push_back( RealPoint( { 0.0, 2.0 } ) );
60  points.push_back( RealPoint( { 0.0, 1.0 } ) );
61 
62  typedef std::vector< RealPoint >::const_iterator ConstIteratorOnPoints;
63  typedef BinomialConvolver<ConstIteratorOnPoints, double> MyBinomialConvolver;
64 
65  for ( unsigned int n = 1; n < 10; ++n )
66  {
67  trace.info() << "Binomial convolver n=" << n << std::endl;
68  MyBinomialConvolver bcc( n );
69  bcc.init( 1.0, points.begin(), points.end(), true );
70  for ( unsigned int i = 0; i < 8; ++i )
71  std::cout << i
72  << " " << bcc.x( i ).first
73  << " " << bcc.x( i ).second
74  << " " << bcc.tangent( i ).first
75  << " " << bcc.tangent( i ).second
76  << " " << bcc.curvature( i )
77  << std::endl;
78  }
79  unsigned int n = MyBinomialConvolver::suggestedSize( 1.0, points.begin(), points.end() );
80  trace.info() << "Binomial convolver suggested n="
81  << n
82  << std::endl;
83 
85  TangentBCFct;
87  CurvatureBCFct;
92  BCTangentEstimator tgtEstimator;
93  BCCurvatureEstimator curvEstimator;
94 
95  tgtEstimator.init( 1.0, points.begin(), points.end(), true );
96  curvEstimator.init( 1.0, points.begin(), points.end(), true );
97  for ( ConstIteratorOnPoints it = points.begin(), it_end = points.end();
98  it != it_end; ++it )
99  {
100  std::cout << *it
101  << " " << tgtEstimator.eval( it )
102  << " " << curvEstimator.eval( it )
103  << std::endl;
104  }
105  trace.endBlock();
106 
107  return true;
108 }
109 
111 // Standard services - public :
112 
113 int main( int argc, char** argv )
114 {
115  trace.beginBlock ( "Testing class BinomialConvolver" );
116  trace.info() << "Args:";
117  for ( int i = 0; i < argc; ++i )
118  trace.info() << " " << argv[ i ];
119  trace.info() << endl;
120 
121  bool res = testBinomialConvolver(); // && ... other tests
122  trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
123  trace.endBlock();
124  return res ? 0 : 1;
125 }
126 // //
DGtal::concepts::CCurveLocalGeometricEstimator
Aim: This concept describes an object that can process a range so as to return one estimated quantity...
Definition: CCurveLocalGeometricEstimator.h:98
DGtal::BinomialConvolverEstimator
Aim: This class encapsulates a BinomialConvolver and a functor on BinomialConvolver so as to be a mod...
Definition: BinomialConvolver.h:324
DGtal::Trace::endBlock
double endBlock()
DGtal::Trace::emphase
std::ostream & emphase()
DGtal::trace
Trace trace
Definition: Common.h:154
DGtal::Trace::beginBlock
void beginBlock(const std::string &keyword="")
DGtal::TangentFromBinomialConvolverFunctor
Aim: This class is a functor for getting the tangent vector of a binomial convolver.
Definition: BinomialConvolver.h:259
DGtal::CurvatureFromBinomialConvolverFunctor
Aim: This class is a functor for getting the curvature of a binomial convolver.
Definition: BinomialConvolver.h:291
DGtal::BinomialConvolver
Aim: This class represents a 2D contour convolved by some binomial. It computes first and second orde...
Definition: BinomialConvolver.h:73
DGtal::Trace::info
std::ostream & info()
DGtal
DGtal is the top-level namespace which contains all DGtal functions and types.
testBinomialConvolver
bool testBinomialConvolver()
Definition: testBinomialConvolver.cpp:48
main
int main(int argc, char **argv)
Definition: testBinomialConvolver.cpp:113
DGtal::PointVector< 2, double >
RealPoint
Z2i::RealPoint RealPoint
Definition: testAstroid2D.cpp:46