/* $Id: x25c.c,v 1.2 2006/05/27 21:06:07 hbabcock Exp $

	Bar chart demo.
*/

#include "plcdemos.h"


void
plfbox(PLFLT x0, PLFLT y0);

/*--------------------------------------------------------------------------*\
 * main
 *
 * Test program for filling polygons and proper clipping
\*--------------------------------------------------------------------------*/

int
main(int argc, char *argv[])
{
    int i;
    int j;
    int npts = 0;
    PLFLT xextreme[10][2];
    PLFLT yextreme[10][2];
    PLFLT x0[10];
    PLFLT y0[10];

/* Parse and process command line arguments */

    (void) plparseopts(&argc, argv, PL_PARSE_FULL);

/* Initialize plplot */

    plssub(3,3);
    plinit();

    xextreme[0][0] = -120.0 ; xextreme[0][1] =  120.0 ; yextreme[0][0] = -120.0 ; yextreme[0][1] =  120.0 ;
    xextreme[1][0] = -120.0 ; xextreme[1][1] =  120.0 ; yextreme[1][0] =   20.0 ; yextreme[1][1] =  120.0 ;
    xextreme[2][0] = -120.0 ; xextreme[2][1] =  120.0 ; yextreme[2][0] =  -20.0 ; yextreme[2][1] =  120.0 ;
    xextreme[3][0] =  -80.0 ; xextreme[3][1] =   80.0 ; yextreme[3][0] =  -20.0 ; yextreme[3][1] =  120.0 ;
    xextreme[4][0] = -220.0 ; xextreme[4][1] = -120.0 ; yextreme[4][0] = -120.0 ; yextreme[4][1] =  120.0 ;
    xextreme[5][0] =  -20.0 ; xextreme[5][1] =   20.0 ; yextreme[5][0] = -120.0 ; yextreme[5][1] =  120.0 ;
    xextreme[6][0] =  -20.0 ; xextreme[6][1] =   20.0 ; yextreme[6][0] =  -20.0 ; yextreme[6][1] =   20.0 ;
    xextreme[7][0] =  -80.0 ; xextreme[7][1] =   80.0 ; yextreme[7][0] =  -80.0 ; yextreme[7][1] =   80.0 ;
    xextreme[8][0] =   20.0 ; xextreme[8][1] =  120.0 ; yextreme[8][0] = -120.0 ; yextreme[8][1] =  120.0 ;

    for ( j = 0; j < 4; j ++ )
    {
        if ( j == 0 )
        {
/* Polygon 1: a diamond */
           x0[0] =    0 ; y0[0] = -100;
           x0[1] = -100 ; y0[1] =    0;
           x0[2] =    0 ; y0[2] =  100;
           x0[3] =  100 ; y0[3] =    0;
           npts = 4 ;
        }
        if ( j == 1 )
        {
/* Polygon 1: a diamond - reverse direction */
           x0[3] =    0 ; y0[3] = -100;
           x0[2] = -100 ; y0[2] =    0;
           x0[1] =    0 ; y0[1] =  100;
           x0[0] =  100 ; y0[0] =    0;
           npts = 4 ;
        }
        if ( j == 2 )
        {
/* Polygon 2: a square with punctures */
           x0[0] = -100 ; y0[0] = -100;
           x0[1] = -100 ; y0[1] =  -80;
           x0[2] =   80 ; y0[2] =    0;
           x0[3] = -100 ; y0[3] =   80;
           x0[4] = -100 ; y0[4] =  100;
           x0[5] =  -80 ; y0[5] =  100;
           x0[6] =    0 ; y0[6] =   80;
           x0[7] =   80 ; y0[7] =  100;
           x0[8] =  100 ; y0[8] =  100;
           x0[9] =  100 ; y0[9] = -100;
           npts = 10 ;
        }
        if ( j == 3 )
        {
/* Polygon 2: a square with punctures - reversed direction */
           x0[9] = -100 ; y0[9] = -100;
           x0[8] = -100 ; y0[8] =  -80;
           x0[7] =   80 ; y0[7] =    0;
           x0[6] = -100 ; y0[6] =   80;
           x0[5] = -100 ; y0[5] =  100;
           x0[4] =  -80 ; y0[4] =  100;
           x0[3] =    0 ; y0[3] =   80;
           x0[2] =   80 ; y0[2] =  100;
           x0[1] =  100 ; y0[1] =  100;
           x0[0] =  100 ; y0[0] = -100;
           npts = 10 ;
        }

        for ( i = 0; i < 9 ; i ++ )
        {
            pladv(0);
            plvsta();
            plwind(xextreme[i][0], xextreme[i][1], yextreme[i][0], yextreme[i][1]);

            plbox("bc", 1.0, 0, "bcnv", 10.0, 0);
            plcol0(1) ;
            plpsty(0) ;
            plfill(npts,x0,y0) ;
            plcol0(2) ;
            pllsty(1) ;
            plline(npts,x0,y0) ;
        }
    }

/* Don't forget to call plend() to finish off! */

    plend();
    exit(0);
}