testMeasure.cpp File Reference

#include <cstdio>
#include <cmath>
#include <iostream>
#include <fstream>
#include <vector>
#include "DGtal/base/Common.h"
#include "DGtal/math/MeasureOfStraightLines.h"

Go to the source code of this file.

Functions
void	testUnitSquare ()
void	testUnitSquareCentroid ()
int	main (int argc, char **argv)

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

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 Systèmes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Date

2011/06/25

Functions for testing class Measure.

This file is part of the DGtal library.

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

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr )

Date

2010/03/03

This file is part of the DGtal library

Definition in file testMeasure.cpp.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 100 of file testMeasure.cpp.

{
  trace.beginBlock ( "Testing class MeasureOfStraightLines" );
  trace.info() << "Args:";
  for ( int i = 0; i < argc; ++i )
    trace.info() << " " << argv[ i ];
  trace.info() << endl;
  
  testUnitSquare();
  testUnitSquareCentroid();
  
  trace.endBlock();
  
  return 0;
}

References DGtal::Trace::beginBlock(), DGtal::Trace::endBlock(), DGtal::Trace::info(), testUnitSquare(), testUnitSquareCentroid(), and DGtal::trace.

testUnitSquare()

void testUnitSquare

(

)

Compute the measure of the unit square [0,1]x[0,1]

Expected value : sqrt{2}/2

Definition at line 51 of file testMeasure.cpp.

{
    vector<double> a;
    vector<double> b;
 
    a.push_back(0);
    b.push_back(0);
    a.push_back(1);
    b.push_back(0);
    a.push_back(1);
    b.push_back(1);
    a.push_back(0);
    b.push_back(1);
 
    MeasureOfStraightLines measure;
 
 
    trace.info() << "Measure of the Straight of Lines of the unit square = " << measure.computeMeasure(a,b)<< std::endl;
    trace.emphase() <<"Expected value = 0.707107 (sqrt(2)/2)"<<endl;
}

References DGtal::MeasureOfStraightLines::computeMeasure(), DGtal::Trace::emphase(), DGtal::Trace::info(), and DGtal::trace.

Referenced by main().

testUnitSquareCentroid()

void testUnitSquareCentroid

(

)

Compute the measure of the unit square [0,1]x[0,1]

Expected value : sqrt{2}/2

Definition at line 78 of file testMeasure.cpp.

{
    vector<double> a;
    vector<double> b;
 
    a.push_back(0);
    b.push_back(0);
    a.push_back(1);
    b.push_back(0);
    a.push_back(1);
    b.push_back(1);
    a.push_back(0);
    b.push_back(1);
 
    MeasureOfStraightLines measure;
 
    trace.info() << "Centroid measure of the unit square = (" << measure.computeCentroidA(a,b)
    << ","<<measure.computeCentroidB(a,b)<<")"<<std::endl;
    trace.emphase() <<"Expected value = (0.4142,0.5)"<<endl;
}

References DGtal::MeasureOfStraightLines::computeCentroidA(), DGtal::MeasureOfStraightLines::computeCentroidB(), DGtal::Trace::emphase(), DGtal::Trace::info(), and DGtal::trace.

Referenced by main().