showcase7d.cpp File Reference

shows isInside() for Ellipse More...

#include "../../homog2d.hpp"

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Functions
template<typename T >
void	draw_object (const Ellipse &ell, const T &p, img::DrawParams &dp)
int	main (int, const char **)

Variables
img::Image< img::SvgImage >	im (280, 220)

Detailed Description

shows isInside() for Ellipse

Function Documentation

draw_object()

template<typename T >

void draw_object	(	const Ellipse &	ell,
		const T &	p,
		img::DrawParams &	dp
	)

{
/*  auto inter =  seg.intersects(p);
    if( inter() )
        for( const auto& pt: inter.get() )
            pt.draw( im, img::DrawParams().setPointStyle( img::PtStyle::Dot ) );
*/
//      auto col = col_outside;
        if( p.isInside( ell ) )
            dp = dp.setThickness(2);
        p.draw( im, dp );
}

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main()

int main	(	int	,
		const char **
	)

{
    auto n = 25; // nb images

    Ellipse ell( 100,70,50,90, 35 * M_PI/180. );

    FRect rect(15,110,40,150);
    Circle cir( 170,120, 22 );
    Segment seg( 50,10, 85,7 );
    std::vector<Point2d> vpts{
        { 0, 0 },
        { 40,12 },
        { 32,38},
        { 28,14},
        { 17,50 },
        { 9,20 }
    };
    CPolyline pol( vpts );
    pol.translate( 3, 5 );

    auto col_ell     = img::DrawParams().setColor(250,20,20);

    for( int i=0; i<n; i++ )
    {
        im.clear();

        ell.draw( im, col_ell );
/*      rect.draw( im, img::DrawParams().setColor(50,250,120) );
        cir.draw(  im, img::DrawParams().setColor(50,120,250) );
        pol.draw(  im, img::DrawParams().setColor(50,180,180) );
    */
        draw_object( ell, rect, img::DrawParams().setColor(10,250,120) );
//      draw_object( ell, cir,  img::DrawParams().setColor(10,120,250) );
        draw_object( ell, pol,  img::DrawParams().setColor(10,180,180) );
        draw_object( ell, seg,  img::DrawParams().setColor(180,0,180) );

        pol.translate( 8, 3) ;
        cir.translate( -5, -1) ;
        rect.translate( 9, -6) ;
        seg.translate( 2, 7) ;

        std::ostringstream oss;
        oss << "showcase7d_" << std::setfill('0') << std::setw(2) <<i << ".svg";
        im.write( oss.str() );
    }
}

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Variable Documentation

im

img::Image<img::SvgImage> im(280, 220)