/**
* Example of a test. To be completed.
*
*/
bool testImplicitShape()
{
unsigned int nbok = 0;
unsigned int nb = 0;
trace.beginBlock ( "Testing implicit shaper ..." );
Z2i::Point a(0,0);
Z2i::Point b(64,64);
Z2i::Point c(32,32);
Board2D board;
Z2i::Domain domain(a,b);
Z2i::DigitalSet set(domain);
Shapes<Z2i::Domain>::shaper( set,
ImplicitBall<Z2i::Space>( c, 10));
board << set;
board.saveSVG("implicitball.svg");
set.clear();
board.clear();
Shapes<Z2i::Domain>::shaper( set,
ImplicitHyperCube<Z2i::Space>( c, 10));
board << set;
board.saveSVG("implicitcube.svg");
set.clear();
board.clear();
Shapes<Z2i::Domain>::shaper( set,
ImplicitNorm1Ball<Z2i::Space>( c, 10));
board << set;
board.saveSVG("implicitlosange.svg");
set.clear();
board.clear();
Shapes<Z2i::Domain>::shaper( set,
ImplicitRoundedHyperCube<Z2i::Space>( c, 10, 1));
board << set;
board.saveSVG("implicitrounded-1.svg");
set.clear();
board.clear();
Shapes<Z2i::Domain>::shaper( set,
ImplicitRoundedHyperCube<Z2i::Space>( c, 10, 2.5));
board << set;
board.saveSVG("implicitrounded-2.5.svg");
nbok += true ? 1 : 0;
nb++;
trace.info() << "(" << nbok << "/" << nb << ") "
<< "true == true" << std::endl;
trace.endBlock();
return nbok == nb;
}
bool testDigitalSetBoardSnippet()
{
typedef SpaceND<2> Z2;
typedef HyperRectDomain<Z2> Domain;
typedef Z2::Point Point;
Point p1( -10, -10 );
Point p2( 10, 10 );
Domain domain( p1, p2 );
typedef DigitalSetSelector < Domain, BIG_DS + HIGH_ITER_DS + HIGH_BEL_DS >::Type SpecificSet;
BOOST_CONCEPT_ASSERT(( concepts::CDigitalSet< SpecificSet > ));
SpecificSet mySet( domain );
Point c( 0, 0 );
mySet.insert( c );
Point d( 5, 2 );
mySet.insert( d );
Point e( 1, -3 );
mySet.insert( e );
Board2D board;
board.setUnit(LibBoard::Board::UCentimeter);
board << mySet;
board.saveSVG("myset-export.svg");
board.clear();
board.setUnit(LibBoard::Board::UCentimeter);
board << SetMode( domain.className(), "Grid" ) << domain << mySet;
board.saveSVG("simpleSet-grid.svg");
board.clear();
board.setUnit(LibBoard::Board::UCentimeter);
board << SetMode( domain.className(), "Paving" ) << domain;
board << mySet;
board.saveSVG("simpleSet-paving.svg");
board.clear();
board.setUnit(LibBoard::Board::UCentimeter);
board << CustomStyle( mySet.className(), new MyDomainStyleCustomRed );
board << mySet;
board.saveSVG("simpleSet-color.svg");
return true;
}
int main()
{
trace.beginBlock ( "Example dgtalBoard2D-1-points" );
Point p1( -3, -2 );
Point p2( 7, 3 );
Point p3( 0, 0 );
Domain domain( p1, p2 );
Board2D board;
board << domain << p1 << p2 << p3;
board.saveSVG("dgtalBoard2D-1-points.svg");
board.saveEPS("dgtalBoard2D-1-points.eps");
board.saveTikZ("dgtalBoard2D-1-points.tikz");
#ifdef WITH_CAIRO
board.saveCairo("dgtalBoard2D-1-points-cairo.pdf", Board2D::CairoPDF);
board.saveCairo("dgtalBoard2D-1-points-cairo.png", Board2D::CairoPNG);
board.saveCairo("dgtalBoard2D-1-points-cairo.ps", Board2D::CairoPS);
board.saveCairo("dgtalBoard2D-1-points-cairo.svg", Board2D::CairoSVG);
#endif
trace.endBlock();
return 0;
}
bool testDomain()
{
typedef SpaceND<2> TSpace;
typedef TSpace::Point Point;
Point a ( 1, 1);
Point b ( 15, 15);
trace.beginBlock ( "HyperRectDomain Iterator" );
HyperRectDomain<TSpace> myDomain ( a,b );
Board2D board;
board << SetMode( myDomain.className(), "Grid" ) << myDomain;
board.scale(10);
board.saveSVG( "domain-grid.svg" );
board.saveTikZ( "domain-grid.tikz" );
Board2D b2;
b2 << SetMode( myDomain.className(), "Paving" ) << myDomain;
b2.scale(10);
b2.saveSVG( "domain-paving.svg" );
b2.saveTikZ( "domain-paving.tikz" );
trace.endBlock();
PointVector<3,int> pl;
//An assert should be raised
//Display2DFactory::draw(b2, pl);
return true;
}
int main( int argc, char** argv )
{
trace.beginBlock ( "Example convex-and-concave-parts" );
trace.info() << "Args:";
for ( int i = 0; i < argc; ++i )
trace.info() << " " << argv[ i ];
trace.info() << endl;
string codes;
if (argc >= 2) codes = argv[1];
else codes = "0300303303033030303000010101011010110100000303303033030303000010101101010110100000333";
stringstream ss(stringstream::in | stringstream::out);
ss << "0 0 " << codes << endl;
Range theContour( ss );
trace.info() << "Processing of " << ss.str() << endl;
//Maximal Segments
Board2D aBoard;
aBoard
<< SetMode( "PointVector", "Grid" )
<< theContour;
segmentationIntoMaximalDSSs(theContour.begin(), theContour.end(), aBoard);
aBoard.saveSVG("convex-and-concave-parts.svg");
trace.endBlock();
return 0;
}
/**
* @brief Function that illustrates the basic usage of
* a naive DSS.
*/
void exampleNaiveDSS()
{
trace.beginBlock ( "Naive DSS" );
using namespace Z2i;
//! [ArithmeticalDSSNaiveCtor]
// Construct a naive DSS
NaiveDSS8<Integer> segment( 5, 8, //slope
Point(0,0), Point(8,5), //ending points
Point(0,0), Point(8,5), //upper points
Point(3,1), Point(3,1) //lower points
);
//! [ArithmeticalDSSNaiveCtor]
// Trace to the standard output
trace.info() << segment << std::endl;
//! [ArithmeticalDSSIteration]
// Trace the position and remainder of each point
for (NaiveDSS8<Integer>::ConstIterator
it = segment.begin(),
ite = segment.end();
it != ite; ++it )
{
trace.info() << "("
<< segment.position( *it ) << ","
<< segment.remainder( *it )
<< ") ";
}
//! [ArithmeticalDSSIteration]
trace.info() << std::endl;
//! [NaiveDSS8DrawingUsage]
Board2D board;
// Draw the grid
Domain domain( Point(0,0), Point(8,5) );
board << SetMode(domain.className(), "Grid")
<< domain;
//Draw the points of the DSS
board << SetMode("PointVector", "Both");
board << SetMode(segment.className(), "Points")
<< segment;
// Draw the bounding box
board << SetMode(segment.className(), "BoundingBox")
<< segment;
//! [NaiveDSS8DrawingUsage]
// Save
board.saveSVG("NaiveDSS8.svg");
#ifdef WITH_CAIRO
board.saveCairo("NaiveDSS8.png", Board2D::CairoPNG);
#endif
trace.endBlock();
}
bool testDomain()
{
typedef SpaceND<2> TSpace;
typedef TSpace::Point Point;
Point a ( 1, 1);
Point b ( 15, 15);
trace.beginBlock ( "HyperRectDomain Iterator" );
HyperRectDomain<TSpace> myDomain ( a,b );
Board2D board;
board << DrawDomainGrid() << myDomain;
board.scale(10);
board.saveSVG( "domain-grid.svg" );
Board2D b2;
b2 << DrawDomainPaving() << myDomain;
b2.scale(10);
b2.saveSVG( "domain-paving.svg" );
trace.endBlock();
PointVector<3,int> pl;
//An assert should be raised
//pl.selfDraw(b2);
return true;
}
int main()
{
KSpace K;
Point plow(-3,-2);
Point pup(5,3);
Domain domain( plow, pup );
Board2D board; // for 2D display
K.init( plow, pup, true );
board << SetMode( domain.styleName(), "Paving" )
<< domain;
Cell pixlow = K.uSpel( plow ); // pixel (-3*2+1,-2*2+1)
Cell ptlow = K.uPointel( plow ); // pointel (-3*2,-2*2)
Cell pixup = K.uSpel( pup ); // pixel (5*2+1,3*2+1)
Cell ptup1 = K.uPointel( pup ); // pointel (5*2,3*2)
Cell ptup2 = K.uTranslation( ptup1, Point::diagonal() ); // pointel (6*2,4*2)
Cell linelb = K.uCell( Point( 1, 0 ) ); // linel (1,0) bottom
Cell linelt = K.uCell( Point( 1, 2 ) ); // linel (1,2) top
Cell linell = K.uCell( Point( 0, 1 ) ); // linel (0,1) left
Cell linelr = K.uCell( Point( 2, 1 ) ); // linel (2,1) right
board << CustomStyle( ptlow.styleName(),
new CustomColors( Color( 0, 0, 200 ),
Color( 100, 100, 255 ) ) )
<< ptlow << ptup2;
board << CustomStyle( pixlow.styleName(),
new CustomColors( Color( 200, 0, 0 ),
Color( 255, 100, 100 ) ) )
<< pixlow << pixup;
board << CustomStyle( linelb.styleName(),
new CustomColors( Color( 0, 200, 0 ),
Color( 100, 255, 100 ) ) )
<< linelb << linelt << linell << linelr;
board.saveSVG("ctopo-1.svg");
board.saveEPS("ctopo-1.eps");
return 0;
}
bool testDigitalSetBoardSnippet()
{
typedef SpaceND<2> Z2;
typedef HyperRectDomain<Z2> Domain;
typedef Z2::Point Point;
Point p1( -10, -10 );
Point p2( 10, 10 );
Domain domain( p1, p2 );
typedef DigitalSetSelector < Domain, BIG_DS + HIGH_ITER_DS + HIGH_BEL_DS >::Type SpecificSet;
SpecificSet mySet( domain );
Point c( 0, 0 );
mySet.insert( c );
Point d( 5, 2 );
mySet.insert( d );
Point e( 1, -3 );
mySet.insert( e );
Board2D board;
board.setUnit(Board::UCentimeter);
board << mySet;
board.saveSVG("myset-export.svg");
board.clear();
board.setUnit(Board::UCentimeter);
board << DrawDomainGrid() << domain << mySet;
board.saveSVG("simpleSet-grid.svg");
board.clear();
board.setUnit(Board::UCentimeter);
board << DrawDomainPaving() << domain;
board << mySet;
board.saveSVG("simpleSet-paving.svg");
board.clear();
board.setUnit(Board::UCentimeter);
board << CustomStyle( mySet.styleName(), new MyDomainStyleCustomRed );
board << mySet;
board.saveSVG("simpleSet-color.svg");
return true;
}
/**
* Example of a test. To be completed.
*
*/
bool testSimpleBoard()
{
unsigned int nbok = 0;
unsigned int nb = 2;
trace.beginBlock ( "Testing class SimpleBoard" );
Board2D board;
board.setPenColorRGBi( 0, 0, 0);
board.drawRectangle( -1, 1, 2.0, 2.0 );
board.setPenColorRGBi( 0, 0, 255 );
board.fillCircle( 2, 2, 1 );
board.saveSVG( "simpleboard.svg" );
board.saveFIG( "simpleboard.fig" );
board.saveEPS( "simpleboard.eps" );
board.saveTikZ( "simpleboard.tikz" );
nbok++;
typedef PointVector<2,int> Point2D;
Point2D apoint, p2;
apoint[0] = 5;
p2[0] = 1;
apoint[1] = 8;
p2[1] = 1;
board.setPenColorRGBi( 255, 0, 255 );
board << apoint;
board.setPenColorRGBi( 255, 0, 0 );
Display2DFactory::draw(board, apoint, p2);
board.scale(10);
board.saveSVG( "pointsimpleboard.svg" );
board.saveFIG( "pointsimpleboard.fig" );
board.saveEPS( "pointsimpleboard.eps" );
board.saveTikZ( "pointsimpleboard.tikz" );
nbok++;
trace.endBlock();
return nbok == nb;
}
/**
* Test for 8-connected points
*
*/
bool testDSS8drawing()
{
typedef PointVector<2,int> Point;
typedef std::vector<Point>::iterator Iterator;
typedef ArithmeticalDSS<Iterator,int,8> DSS8;
std::vector<Point> boundary;
boundary.push_back(Point(0,0));
boundary.push_back(Point(1,1));
boundary.push_back(Point(2,1));
boundary.push_back(Point(3,2));
boundary.push_back(Point(4,2));
boundary.push_back(Point(5,2));
boundary.push_back(Point(6,3));
boundary.push_back(Point(6,4));
// Good Initialisation
trace.beginBlock("Add points while it is possible and draw the result");
DSS8 theDSS8;
theDSS8.init( boundary.begin() );
trace.info() << theDSS8 << " " << theDSS8.isValid() << std::endl;
{
while ( (theDSS8.end()!=boundary.end())
&&(theDSS8.extendForward()) ) {}
trace.info() << theDSS8 << " " << theDSS8.isValid() << std::endl;
HyperRectDomain< SpaceND<2,int> > domain( Point(0,0), Point(10,10) );
Board2D board;
board.setUnit(Board::UCentimeter);
board << SetMode(domain.className(), "Paving")
<< domain;
board << SetMode("PointVector", "Both");
board << SetMode(theDSS8.className(), "Points")
<< theDSS8;
board << SetMode(theDSS8.className(), "BoundingBox")
<< theDSS8;
board.saveSVG("DSS8.svg");
}
trace.endBlock();
return true;
}
int main( int argc, char** argv )
{
trace.beginBlock ( "Example exampleBezierCurve" );
trace.info() << "Args:";
for ( int i = 0; i < argc; ++i )
trace.info() << " " << argv[ i ];
trace.info() << endl;
//control points
typedef PointVector<2,int> Point;
Point P(0,0), Q(4,4), R(8,0);
//display
Board2D board;
//with fill
board << SetMode(P.className(), "Grid") << P << Q << R;
board.drawQuadraticBezierCurve(P[0], P[1], Q[0], Q[1], R[0], R[1]);
board.saveSVG("BezierCurve.svg", Board2D::BoundingBox, 5000 );
board.saveEPS("BezierCurve.eps", Board2D::BoundingBox, 5000 );
board.saveTikZ("BezierCurve.tikz", Board2D::BoundingBox, 5000 );
board.saveFIG("BezierCurve.fig", Board2D::BoundingBox, 5000 );
#ifdef WITH_CAIRO
board.saveCairo("BezierCurve.pdf", Board2D::CairoPDF);
#endif
board.clear();
//without fill
board << SetMode(P.className(), "Grid") << P << Q << R;
board.setFillColor(Color::None);
board.drawQuadraticBezierCurve(P[0], P[1], Q[0], Q[1], R[0], R[1]);
board.saveSVG("BezierCurve2.svg", Board2D::BoundingBox, 5000 );
board.saveEPS("BezierCurve2.eps", Board2D::BoundingBox, 5000 );
board.saveTikZ("BezierCurve2.tikz", Board2D::BoundingBox, 5000 );
board.saveFIG("BezierCurve2.fig", Board2D::BoundingBox, 5000 );
#ifdef WITH_CAIRO
board.saveCairo("BezierCurve2.pdf", Board2D::CairoPDF);
#endif
trace.endBlock();
return 0;
}
/**
* Example of a test. To be completed.
*
*/
bool testBIGINTEGERSpace()
{
unsigned int nbok = 0;
unsigned int nb = 0;
trace.beginBlock ( "BIGINTEGER Space test..." );
//This space is weird...
typedef SpaceND<2, DGtal::BigInteger> Space2;
typedef Space2::Point Point;
typedef Space2::Point::Coordinate Coordinate;
typedef HyperRectDomain<Space2> Domain;
DGtal::BigInteger a, b, c;
a = 1234;
b = "-5678";
Point p(a,b);
typedef FreemanChain<Coordinate> Contour;
typedef ArithmeticalDSS<Contour::ConstIterator,Coordinate,4> DSS4;
typedef GreedySegmentation<DSS4> Decomposition;
// Construct the Freeman chain
std::stringstream ss(stringstream::in | stringstream::out);
ss << "31 16 11121212121212212121212212122122222322323233323333333323333323303330330030300000100010010010001000101010101111" << endl;
Contour theContour( ss );
//Segmentation
Decomposition theDecomposition( theContour.begin(),theContour.end(),DSS4() );
Decomposition::SegmentComputerIterator i = theDecomposition.begin();
DSS4 segment(*i);
Point p1( 0, 0 );
Point p2( 31, 31 );
trace.info() <<"p2.norm()= "<< p2.norm()<<endl;
Domain domain( p1, p2 );
Board2D aBoard;
aBoard << SetMode( domain.className(), "Grid" )
<< domain
<< theContour
<< segment;
aBoard.saveSVG("testgmpcontour.svg");
nbok += true ? 1 : 0;
nb++;
trace.info() << "(" << nbok << "/" << nb << ") "
<< "true == true" << std::endl;
trace.endBlock();
return nbok == nb;
}
/**
* Test for 4-connected points
*
*/
bool testDSS4drawing()
{
typedef PointVector<2,int> Point;
typedef std::vector<Point>::iterator Iterator;
typedef ArithmeticalDSS<Iterator,int,4> DSS4;
std::vector<Point> contour;
contour.push_back(Point(0,0));
contour.push_back(Point(1,0));
contour.push_back(Point(1,1));
contour.push_back(Point(2,1));
contour.push_back(Point(3,1));
contour.push_back(Point(3,2));
contour.push_back(Point(4,2));
contour.push_back(Point(5,2));
contour.push_back(Point(6,2));
contour.push_back(Point(6,3));
contour.push_back(Point(6,4));
// Adding step
trace.beginBlock("Add points while it is possible and draw the result");
DSS4 theDSS4;
theDSS4.init( contour.begin() );
trace.info() << theDSS4 << " " << theDSS4.isValid() << std::endl;
while ( (theDSS4.end() != contour.end())
&&(theDSS4.extendForward()) ) {}
trace.info() << theDSS4 << " " << theDSS4.isValid() << std::endl;
HyperRectDomain< SpaceND<2,int> > domain( Point(0,0), Point(10,10) );
Board2D board;
board.setUnit(Board::UCentimeter);
board << SetMode(domain.className(), "Grid")
<< domain;
board << SetMode("PointVector", "Grid");
board << SetMode(theDSS4.className(), "Points")
<< theDSS4;
board << SetMode(theDSS4.className(), "BoundingBox")
<< theDSS4;
board.saveSVG("DSS4.svg");
trace.endBlock();
return true;
}
/**
* Example of a test. To be completed.
*
*/
bool testPNMWriter()
{
trace.beginBlock ( "Testing block ..." );
typedef SpaceND<2> TSpace;
typedef TSpace::Point Point;
typedef HyperRectDomain<TSpace> Domain;
typedef HueShadeColorMap<unsigned char> Hue;
typedef HueShadeColorMap<unsigned char,2> HueTwice;
typedef GrayscaleColorMap<unsigned char> Gray;
// Gradient using the "Jet" preset.
typedef GradientColorMap<unsigned char, CMAP_JET > Jet;
// Gradient from black to red.
const int BlackColor = DGTAL_RGB2INT(0,0,0);
const int RedColor = DGTAL_RGB2INT(255,0,0);
typedef GradientColorMap< unsigned char, CMAP_CUSTOM, BlackColor, RedColor > RedShade1;
// Gradient from black to red, using a ColorBrightnessColorMap.
typedef ColorBrightnessColorMap< unsigned char, RedColor > RedShade2;
Point a ( 1, 1);
Point b ( 16, 16);
typedef ImageSelector<Domain, unsigned char>::Type Image;
Image image(Domain(a,b));
for(unsigned int i=0 ; i < 256; i++)
image[i] = i;
PPMWriter<Image,Hue>::exportPPM("export-hue.ppm",image, Hue(0,255) );
PPMWriter<Image,HueTwice>::exportPPM("export-hue-twice.ppm",image,HueTwice(0,255));
PGMWriter<Image>::exportPGM("export-hue-twice.pgm",image);
PPMWriter<Image,Gray>::exportPPM("export-gray.ppm",image, Gray(0,255));
PPMWriter<Image,Jet>::exportPPM("export-jet.ppm",image,Jet(0,255));
PPMWriter<Image,RedShade1>::exportPPM("export-red1.ppm",image,RedShade1(0,255));
PPMWriter<Image,RedShade2>::exportPPM("export-red2.ppm",image,RedShade2(0,255));
//TestingFunctor
typedef DGtal::functors::Composer< Jet, functors::RedChannel, unsigned char> RedFunctor;
RedFunctor redFunctor( Jet(0,255), functors::RedChannel() ) ;
PGMWriter<Image, RedFunctor>::exportPGM("export-jet-red.pgm",image, redFunctor);
//test Raw export
RawWriter<Image>::exportRaw8("export-hue-twice.raw",image);
//test Image export with libboard
Board2D board;
board.setUnit(LibBoard::Board::UCentimeter);
Display2DFactory::drawImage<HueTwice>(board, image, (unsigned char)0, (unsigned char)255);
board.saveSVG("export-hue-twice.svg");
trace.endBlock();
return true;
}
int main()
{
trace.beginBlock ( "Example dgtalBoard2D-4-colormaps" );
Point p1( -10, -7 );
Point p2( 10, 7 );
Domain domain( p1, p2 );
Point c1( -5, -1 );
Point c2( 5, 1 );
DigitalSet shape_set( domain );
Shapes<Domain>::addNorm1Ball( shape_set, c1, 5 );
Shapes<Domain>::addNorm1Ball( shape_set, c2, 5 );
shape_set.erase( c1 );
shape_set.erase( c2 );
// Creating colormap.
GradientColorMap<int> cmap_grad( 0, 15 );
cmap_grad.addColor( Color( 50, 50, 255 ) );
cmap_grad.addColor( Color( 255, 0, 0 ) );
cmap_grad.addColor( Color( 255, 255, 10 ) );
// Creating board.
Board2D board;
board << SetMode( domain.className(), "Paving" )
<< domain
<< SetMode( p1.className(), "Paving" );
// This is the name of the style for a Point in mode "Paving".
string specificStyle = p1.className() + "/Paving";
for ( DigitalSet::ConstIterator it = shape_set.begin();
it != shape_set.end();
++it )
{
unsigned int d = (unsigned int) ceil( ( *it - c1 ).norm() );
// specific color depending on the distance to point c1.
board << CustomStyle( specificStyle,
new CustomColors( Color::Black,
cmap_grad( d ) ) )
<< *it;
}
board.saveSVG( "dgtalBoard2D-4-colormaps.svg");
board.saveEPS( "dgtalBoard2D-4-colormaps.eps");
board.saveTikZ( "dgtalBoard2D-4-colormaps.tikz");
#ifdef WITH_CAIRO
board.saveCairo("dgtalBoard2D-4-colormaps-cairo.pdf", Board2D::CairoPDF);
board.saveCairo("dgtalBoard2D-4-colormaps-cairo.png", Board2D::CairoPNG);
board.saveCairo("dgtalBoard2D-4-colormaps-cairo.ps", Board2D::CairoPS);
board.saveCairo("dgtalBoard2D-4-colormaps-cairo.svg", Board2D::CairoSVG);
#endif
trace.endBlock();
return 0;
}
/**
* This test is an adaptation to CombinatorialDSS of
* 'examples/geometre/curves/greedy-dss-decomposition.cpp' where
* is uses ArithmeticDSS.
*
* It produces a slightly different decomposition since in a greedy-segmentation,
* consecutive ArithmeticDSS overlap a single point while CombinatorialDSS
* overlap on a code and thus on two points.
*/
bool showGreedySegmantation()
{
trace.beginBlock ( "Example testCombinDSS-greedy" );
typedef CombinatorialDSS<string::const_iterator,int> combinDSS;
typedef GreedySegmentation<combinDSS> Decomposition;
typedef ArithmeticalDSS< combinDSS::ConstPointIterator, int, 4> arithDSS;
std::stringstream ss(stringstream::in | stringstream::out);
ss << "31 16 11121212121212212121212212122122222322323233323333333323333323303330330030300000100010010010001000101010101111" << endl;
Contour theContour( ss );
Decomposition theDecomposition( theContour.chain.begin(), theContour.chain.end(), combinDSS() );
Point p1( 0, 0 );
Point p2( 31, 31 );
Domain domain( p1, p2 );
Board2D aBoard;
aBoard << SetMode( domain.className(), "Grid" )
<< domain
<< SetMode( "PointVector", "Grid" )
<< theContour;
//for each segment
aBoard << SetMode( "ArithmeticalDSS", "BoundingBox" );
string className = "ArithmeticalDSS/BoundingBox";
Point p;
p.at(0) = 31;
p.at(1) = 16;
for ( Decomposition::SegmentComputerIterator i = theDecomposition.begin();
i != theDecomposition.end(); ++i )
{
combinDSS segment(*i);
// set the position of the combinatorilDSS
segment.setPosition( p );
// Since both DSS overlap on one code, the start point of the next one is
// the penultimate point of the current one.
p = *( --( --( segment.pointEnd() )));
// Build an ArithmeticDSS from the CombinatorialDSS.
arithDSS toShow( segment.pointBegin() );
while( toShow.end() != segment.pointEnd() )
{
toShow.extendForward();
}
aBoard << CustomStyle( className, new CustomPenColor( Color::Blue ) )
<< toShow; // draw each segment
}
aBoard.saveSVG("testCombinDSS-greedy.svg");
trace.endBlock();
return 1;
}
void test_linear_ring()
{
trace.beginBlock("linear ring");
const Domain domain(Point(-5,-5), Point(5,5));
typedef DiscreteExteriorCalculus<1, 2, EigenLinearAlgebraBackend> Calculus;
Calculus calculus;
calculus.initKSpace<Domain>(domain);
for (int kk=-8; kk<10; kk++) calculus.insertSCell( calculus.myKSpace.sCell(Point(-8,kk), kk%2 == 0 ? Calculus::KSpace::POS : Calculus::KSpace::NEG) );
for (int kk=-8; kk<10; kk++) calculus.insertSCell( calculus.myKSpace.sCell(Point(kk,10), kk%2 == 0 ? Calculus::KSpace::POS : Calculus::KSpace::NEG) );
for (int kk=10; kk>-8; kk--) calculus.insertSCell( calculus.myKSpace.sCell(Point(10,kk)) );
for (int kk=10; kk>-8; kk--) calculus.insertSCell( calculus.myKSpace.sCell(Point(kk,-8)) );
calculus.updateIndexes();
{
trace.info() << calculus << endl;
Board2D board;
board << domain;
board << calculus;
board.saveSVG("ring_structure.svg");
}
const Calculus::PrimalDerivative0 d0 = calculus.derivative<0, PRIMAL>();
display_operator_info("d0", d0);
const Calculus::PrimalHodge0 h0 = calculus.hodge<0, PRIMAL>();
display_operator_info("h0", h0);
const Calculus::DualDerivative0 d0p = calculus.derivative<0, DUAL>();
display_operator_info("d0p", d0p);
const Calculus::PrimalHodge1 h1 = calculus.hodge<1, PRIMAL>();
display_operator_info("h1", h1);
const Calculus::PrimalIdentity0 laplace = calculus.laplace<PRIMAL>();
display_operator_info("laplace", laplace);
const int laplace_size = calculus.kFormLength(0, PRIMAL);
const Eigen::MatrixXd laplace_dense(laplace.myContainer);
for (int ii=0; ii<laplace_size; ii++)
FATAL_ERROR( laplace_dense(ii,ii) == 2 );
FATAL_ERROR( laplace_dense.array().rowwise().sum().abs().sum() == 0 );
FATAL_ERROR( laplace_dense.transpose() == laplace_dense );
trace.endBlock();
}
/**
* Test for the segmentation of
* one DSS into DSSs
*
*/
bool testOneDSS()
{
typedef int Coordinate;
typedef PointVector<2,Coordinate> Point;
typedef ArithmeticalDSS<std::vector<Point>::iterator,Coordinate,8> PrimitiveType;
typedef MaximalSegments<PrimitiveType> DecompositionType;
std::vector<Point> curve;
curve.push_back(Point(0,0));
curve.push_back(Point(1,1));
curve.push_back(Point(2,1));
curve.push_back(Point(3,2));
curve.push_back(Point(4,2));
curve.push_back(Point(5,2));
curve.push_back(Point(6,3));
curve.push_back(Point(7,3));
//Segmentation
trace.beginBlock("Segmentation of one DSS");
PrimitiveType primitive;
DecompositionType theDecomposition(curve.begin(), curve.end(), primitive, false);
// Draw the pixels
Board2D aBoard;
aBoard.setUnit(Board::UCentimeter);
aBoard << SetMode("PointVector", "Both");
for (std::vector<Point>::iterator it = curve.begin(); it != curve.end(); ++it) {
aBoard << (*it);
}
//for each segment
unsigned int compteur = 0;
DecompositionType::SegmentIterator i = theDecomposition.begin();
for ( ; i != theDecomposition.end(); ++i) {
++compteur;
PrimitiveType segment(*i);
trace.info() << segment << std::endl; //standard output
aBoard << SetMode( "ArithmeticalDSS", "BoundingBox" )
<< segment; // draw each segment
}
aBoard.saveSVG("oneDSS.svg");
trace.endBlock();
return (compteur==1);
}
int main( )
{
trace.beginBlock ( "Example dgtalboard-5-greedy-dss" );
typedef FreemanChain<int> Contour4;
typedef ArithmeticalDSSComputer<Contour4::ConstIterator,int,4> DSS4;
typedef GreedySegmentation<DSS4> Decomposition4;
// A Freeman chain code is a string composed by the coordinates of the first pixel, and the list of elementary displacements.
std::stringstream ss(stringstream::in | stringstream::out);
ss << "31 16 11121212121212212121212212122122222322323233323333333323333323303330330030300000100010010010001000101010101111" << endl;
// Construct the Freeman chain
Contour4 theContour( ss );
// Segmentation
Decomposition4 theDecomposition( theContour.begin(),theContour.end(),DSS4() );
// Draw the domain and the contour
Point p1( 0, 0 );
Point p2( 31, 31 );
Domain domain( p1, p2 );
Board2D aBoard;
aBoard << SetMode( domain.className(), "Grid" )
<< domain
<< SetMode( "PointVector", "Grid" )
<< theContour;
// Draw each segment
aBoard << SetMode( "ArithmeticalDSS", "BoundingBox" );
string className = "ArithmeticalDSS/BoundingBox";
for ( Decomposition4::SegmentComputerIterator
it = theDecomposition.begin(),
itEnd = theDecomposition.begin();
it != itEnd; ++it )
{
aBoard << CustomStyle( className,
new CustomPenColor( Color::Blue ) )
<< it->primitive();
}
aBoard.saveSVG("dgtalboard-5-greedy-dss.svg");
aBoard.saveSVG("dgtalboard-5-greedy-dss.eps");
trace.endBlock();
return 0;
}
/**
* Test for closed curves
*
*/
bool testClosedCurves(const bool& aFlag)
{
trace.beginBlock ( "Test for closed curves" );
typedef FreemanChain<int> Contour4;
typedef ArithmeticalDSS<Contour4::ConstIterator,int,4> DSS4;
typedef MaximalSegments<DSS4> Decomposition4;
// A Freeman chain code is a string composed by the coordinates of the first pixel, and the list of elementary displacements.
std::stringstream ss(stringstream::in | stringstream::out);
ss << "31 16 11121212121212212121212212122122222322323233323333333323333323303330330030300000100010010010001000101010101111" << endl;
// Construct the Freeman chain
Contour4 theContour( ss );
//Segmentation
DSS4 dss;
Decomposition4 theDecomposition( theContour.begin(),theContour.end(),dss,aFlag );
Board2D aBoard;
aBoard << SetMode( "PointVector", "Grid" )
<< theContour;
//for each segment
aBoard << SetMode( "ArithmeticalDSS", "BoundingBox" );
string className = "ArithmeticalDSS/BoundingBox";
for ( Decomposition4::SegmentIterator i = theDecomposition.begin();
i != theDecomposition.end(); ++i )
{
DSS4 segment(*i);
cout << segment << endl;
aBoard << CustomStyle( className,
new CustomPenColor( Color::Blue ) )
<< segment; // draw each segment
}
std::string filename = "testClosedCurves";
if (aFlag) filename += "ProcessedAsClosed";
else filename += "ProcessedAsOpen";
filename += ".svg";
aBoard.saveSVG(filename.c_str());
trace.endBlock();
return true;
}
int main( int argc, char** argv )
{
trace.beginBlock ( "Example EuclideanShapesDecorator" );
trace.info() << "Args:";
for ( int i = 0; i < argc; ++i )
trace.info() << " " << argv[ i ];
trace.info() << endl;
/// Construction of the shape + digitalization
double h = 1.0;
//! [EuclideanShapesDecoratorUsage]
typedef ImplicitBall< Z2i::Space > MyEuclideanShapeA;
typedef ImplicitBall< Z2i::Space > MyEuclideanShapeB;
MyEuclideanShapeA shapeA( Z2i::RealPoint( 0.0, 0.0 ), 15 );
MyEuclideanShapeB shapeB( Z2i::RealPoint( 0.0, 0.0 ), 10 );
MyEuclideanShapeB shapeC( Z2i::RealPoint( -5.0, 0.0 ), 5 );
typedef EuclideanShapesCSG< MyEuclideanShapeA, MyEuclideanShapeB > Minus;
Minus s_minus ( shapeA );
s_minus.minus( shapeB );
s_minus.plus( shapeC );
//! [EuclideanShapesDecoratorUsage]
typedef GaussDigitizer< Z2i::Space, Minus > MyGaussDigitizer;
MyGaussDigitizer digShape;
digShape.attach( s_minus );
digShape.init( s_minus.getLowerBound(), s_minus.getUpperBound(), h );
Z2i::Domain domainShape = digShape.getDomain();
Z2i::DigitalSet aSet( domainShape );
Shapes<Z2i::Domain>::digitalShaper( aSet, digShape );
Board2D board;
board << SetMode( domainShape.className(), "Paving" )
<< domainShape;
Color dorange ( 255, 136, 0, 220 );
board << CustomStyle( aSet.className(), new CustomFillColor( dorange ));
board << aSet;
board.saveSVG ( "example-EuclideanShapesDecorator.svg" );
trace.endBlock();
return 0;
}
int main()
{
trace.beginBlock ( "Board example" );
Point p1( -3, -2 );
Point p2( 7, 3 );
Point p3( 0, 0 );
Domain domain( p1, p2 );
Board2D board;
//We display the underlying domain
board << domain ;
//We display points
board << p1 << p2 << p3;
//Output
board.saveSVG("test.svg");
board.saveEPS("test.eps");
board.saveTikZ("test.tikz");
//Clear
board.clear();
//Upade position + color
p2[0] = 5; //x-coordinate
board << domain << p1 << p3;
Color red( 255, 0, 0 );
//All points will be in red
board << CustomStyle( p2.className(), new CustomColors( red, red ) )
<< p2;
//Export again
board.saveEPS("test2.eps");
trace.endBlock();
return 0;
}
int main()
{
// define digital space and domain
typedef DGtal::SpaceND<2, DGtal::int32_t> MySpace;
typedef MySpace::Point MyPoint;
typedef HyperRectDomain<MySpace> MyDomain;
// define points in this domain
MyPoint p1(-3,-4);
MyPoint p2(10,4);
MyPoint p3(5,1);
MyDomain domain(p1,p2);
// 2D display
Board2D board;
board << domain;
board << p1 << p2 << p3;
board.saveSVG("demo-kernel-1.svg");
board.saveEPS("demo-kernel-1.eps");
return 0;
}
/**
* Export a given Set into an image file.
*
* @param aSet input set.
* @param outputName output file name.
* @param outputFormat output file format.
*
*/
static
void save(const Set &aSet,
const std::string outputName,
const std::string outputFormat)
{
Image image = ImageFromSet<Image>::template create<Set>(aSet, 255, true);
if (outputFormat == "pgm")
PNMWriter<Image,Gray>::exportPGM(outputName+"."+outputFormat,image,0,255);
else
if (outputFormat == "raw")
RawWriter<Image,Gray>::exportRaw8(outputName+"."+outputFormat,image,0,255);
else
if (outputFormat == "svg")
{
Board2D board;
board << aSet;
board.saveSVG((outputName+"."+outputFormat).c_str());
}
else
#ifdef WITH_CAIRO
if (outputFormat == "pdf")
{
Board2D board;
board << aSet;
board.saveCairo((outputName+"."+outputFormat).c_str(), Board2D::CairoPDF);
}
else
if (outputFormat == "png")
{
Board2D board;
board << aSet;
board.saveCairo((outputName+"."+outputFormat).c_str(), Board2D::CairoPNG);
}
else
#endif
{
trace.error()<< "Output format: "<<outputFormat<< " not recognized."<<std::endl;
exit(1);
}
}
int main()
{
typedef SpaceND<2> Space2;
typedef HyperRectDomain<Space2> TDomain;
typedef TDomain::Vector Vector;
//Default image selector = STLVector
typedef ImageSelector<TDomain, unsigned char>::Type Image;
// Creating FreemanChain from file
std::string freemanChainFilename = examplesPath + "samples/contourS.fc";
fstream fst;
fst.open (freemanChainFilename.c_str(), ios::in);
FreemanChain<Space::Integer> fc(fst);
fst.close();
// Importing image with MagickReader
MagickReader<Image> reader;
std::string filenameImage = examplesPath + "samples/contourS.gif";
Image img = reader.importImage( filenameImage );
Point ptInf = img.lowerBound();
Point ptSup = img.upperBound();
unsigned int width = abs(ptSup.at(0)-ptInf.at(0)+1);
unsigned int height = abs(ptSup.at(1)-ptInf.at(1)+1);
// Draw the freemanchain and the contour
Board2D dgBoard;
dgBoard.drawImage(filenameImage, 0,height-1, width, height );
dgBoard << fc;
dgBoard.saveEPS("freemanChainDisplay.eps");
dgBoard.saveSVG("freemanChainDisplay.svg");
dgBoard.saveFIG("freemanChainDisplay.fig");
return 0;
}
/**
* testDisplay
*
*/
bool testDisplay()
{
typedef FreemanChain<int> FreemanChain;
//typedef FreemanChain::Point Point;
//typedef FreemanChain::Vector Vector;
//typedef FreemanChain::ConstIterator Iterator;
//typedef std::vector<unsigned int> numVector;
Board2D aBoard;
aBoard.setUnit(Board::UCentimeter);
fstream fst;
fst.open ((testPath + "samples/contourS.fc").c_str() , ios::in);
FreemanChain fc(fst);
aBoard.setPenColor(Color::Red);
//aBoard << DrawPavingPixel();
aBoard << fc;
std::string filenameImage = testPath + "samples/contourS.png"; // ! only PNG with Cairo for the moment !
LibBoard::Image image( 0, 84, 185, 85, filenameImage, 20 );
image.shiftDepth(500);
LibBoard::Board & board = aBoard;
board << image;
aBoard.saveSVG( "testDisplayFC.svg", Board::BoundingBox, 5000 );
aBoard.saveEPS( "testDisplayFC.eps", Board::BoundingBox, 5000 );
aBoard.saveFIG( "testDisplayFC.fig", Board::BoundingBox, 5000 );
#ifdef WITH_CAIRO
aBoard.saveCairo("testDisplayFC-cairo.pdf", Board2D::CairoPDF, Board::BoundingBox, 5000);
aBoard.saveCairo("testDisplayFC-cairo.png", Board2D::CairoPNG, Board::BoundingBox, 5000);
aBoard.saveCairo("testDisplayFC-cairo.ps", Board2D::CairoPS, Board::BoundingBox, 5000);
aBoard.saveCairo("testDisplayFC-cairo.svg", Board2D::CairoSVG, Board::BoundingBox, 5000);
#endif
return true;
}
bool testDigitalSetDraw()
{
unsigned int nbok = 0;
unsigned int nb = 0;
typedef SpaceND<2> Z2;
typedef HyperRectDomain<Z2> Domain;
typedef Z2::Point Point;
Point p1( -10, -10 );
Point p2( 10, 10 );
Domain domain( p1, p2 );
typedef DigitalSetSelector
< Domain, BIG_DS + HIGH_ITER_DS + HIGH_BEL_DS >::Type SpecificSet;
BOOST_CONCEPT_ASSERT(( concepts::CDigitalSet< SpecificSet > ));
SpecificSet disk( domain );
Point c( 0, 0 );
trace.beginBlock ( "Creating disk( r=5.0 ) ..." );
for ( Domain::ConstIterator it = domain.begin();
it != domain.end();
++it )
{
if ( (*it - c ).norm() < 5.0 )
// insertNew is very important for vector container.
disk.insertNew( *it );
}
//Board export test
trace.beginBlock("SVG Export");
Board2D board;
board << SetMode( domain.className(), "Grid" ) << domain;
board << disk;
board.scale(10);
board.saveSVG( "disk-set.svg" );
trace.endBlock();
return nbok == nb;
}
int main()
{
trace.beginBlock ( "Example dgtalboard-3-custom-classes" );
Point p1( -3, -2 );
Point p2( 7, 3 );
Point p3( 0, 0 );
Domain domain( p1, p2 );
Color red( 255, 0, 0 );
Color dred( 192, 0, 0 );
Color dgreen( 0, 192, 0 );
Color blue( 0, 0, 255 );
Color dblue( 0, 0, 192 );
Board2D board;
board << domain
<< CustomStyle( p1.styleName(), new CustomColors( red, dred ) )
<< p1
<< CustomStyle( p2.styleName(), new CustomFillColor( dgreen ) )
<< p2
<< CustomStyle( p3.styleName(),
new CustomPen( blue, dblue, 6.0,
Board2D::Shape::SolidStyle,
Board2D::Shape::RoundCap,
Board2D::Shape::RoundJoin ) )
<< p3;
board.saveSVG("dgtalboard-3-custom-classes.svg");
board.saveEPS("dgtalboard-3-custom-classes.eps");
#ifdef WITH_CAIRO
board.saveCairo("dgtalboard-3-custom-classes-cairo.pdf", Board2D::CairoPDF);
board.saveCairo("dgtalboard-3-custom-classes-cairo.png", Board2D::CairoPNG);
board.saveCairo("dgtalboard-3-custom-classes-cairo.ps", Board2D::CairoPS);
board.saveCairo("dgtalboard-3-custom-classes-cairo.svg", Board2D::CairoSVG);
#endif
trace.endBlock();
return 0;
}
int main(int /*argc*/, char** /*argv*/)
{
////////////////////////////////////////
Board2D board;
board.setUnit(Board2D::UCentimeter);
board.drawArc(0.0, 1.0, 5.0, 0, M_PI/2.0, false);
board.drawArc(0.0, 1.0, 4.0, 0, M_PI/2.0, true);
board.drawArc(0.0, 1.0, 3.0, -0.5, M_PI/2.0-0.5, false);
board.drawArc(0.0, 1.0, 2.0, 0.5, M_PI/2.0+0.5, false);
board.saveEPS( "essai.eps" );
board.saveSVG( "essai.svg" );
board.saveTikZ( "essai.tikz" );
#ifdef WITH_CAIRO
board.saveCairo("essai.pdf", Board2D::CairoPDF);
#endif
////////////////////////////////////////
return 0;
}