exampleParametricShapes.cpp

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#include <iostream>
#include <DGtal/base/Common.h>
 
// Shape construction
#include <DGtal/shapes/Shapes.h>
#include <DGtal/shapes/GaussDigitizer.h>
#include <DGtal/shapes/parametric/Astroid2D.h>
 
// Drawing
#include <DGtal/io/boards/Board2D.h>
 
using namespace DGtal;
 
int main( int argc, char** argv )
{
    trace.beginBlock ( "Example Parametric Shapes" );
 
    typedef Z2i::Space Space;
 
    /* This example consider the Lemniscate shape.
     *
     * To test other shapes, replace Astroid2D by the desirated shape
     * and adapt parameters of the shape constructor.
     */
    typedef Astroid2D<Space> MyShape;
    MyShape shape( 0, 0, 10, 5 );
 
    // Grid step parameter for the Gauzz digitization
    double h = 1;
 
    // Gauss digitization
    typedef GaussDigitizer< Z2i::Space, MyShape > MyGaussDigitizer;
    MyGaussDigitizer dig;
    dig.attach( shape );
    dig.init( shape.getLowerBound(), shape.getUpperBound(), h );
 
    // Create the digital point set from the digitizer
    Z2i::DigitalSet aSet( dig.getDomain() );
    Shapes<Z2i::Domain>::digitalShaper( aSet, dig );
 
    // Draw the digitized shape in a file named "shape.svg"
    Board2D board;
    board << aSet;
    board << CustomStyle( aSet.className(), new CustomFillColor(Color::Black));
    board.saveSVG( "shape.svg" );
 
    trace.endBlock();
    return 0;
}
 
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