pls.meshc(x, y, z, opt[k] | pls.MAG_COLOR | pls.BASE_CONT,
pls.meshc(x, y, z, opt[k] | PLStream.MAG_COLOR | PLStream.BASE_CONT,
    public x11( String[] args )    {        int i, j, k;        double[] x = new double[ XPTS ];        double[] y = new double[ YPTS ];        double[][] z = new double[XPTS][YPTS];	double zmin=Double.MAX_VALUE, zmax=Double.MIN_VALUE;        double xx, yy;        int nlevel = LEVELS;        double[] clevel = new double[LEVELS];        double step;           // Parse and process command line arguments.        pls.parseopts( args, pls.PL_PARSE_FULL | pls.PL_PARSE_NOPROGRAM );    // Initialize plplot.        pls.init();        for( i=0; i < XPTS; i++ )            x[i] = 3.* (double) (i - (XPTS/2)) / (double) (XPTS/2);        for( j=0; j < YPTS; j++ )            y[j] = 3.* (double) (j - (YPTS/2)) / (double) (YPTS/2);        for( i = 0; i < XPTS; i++ )        {            xx = x[i];            for( j = 0; j < YPTS; j++ )            {                yy = y[j];                z[i][j] = 3. * (1.-xx)*(1.-xx) * Math.exp(-(xx*xx) - (yy+1.)*(yy+1.)) -		         10. * (xx/5. - Math.pow(xx,3.) - Math.pow(yy,5.)) * Math.exp(-xx*xx-yy*yy) -		         1./3. * Math.exp(-(xx+1)*(xx+1) - (yy*yy));	       if(false) { /* Jungfraujoch/Interlaken */		  if (z[i][j] < -1.)		    z[i][j] = -1.;	       }	       if (zmin > z[i][j])		 zmin = z[i][j];	       if (zmax < z[i][j])		 zmax = z[i][j];            }        }        step = (zmax - zmin)/(nlevel+1);        for (i=0; i<nlevel; i++)	    clevel[i] = zmin + step + step*i;               cmap1_init();        for( k = 0; k < 2; k++ ) {	    for ( i = 0; i < 4; i++) {	       pls.adv(0);	       pls.col0(1);	       pls.vpor(0.0, 1.0, 0.0, 0.9);	       pls.wind(-1.0, 1.0, -1.0, 1.5);	       pls.w3d( 1.0, 1.0, 1.2, -3.0, 3.0, -3.0, 3.0, zmin, zmax,			  alt[k], az[k] );	       pls.box3( "bnstu", "x axis", 0.0, 0,			   "bnstu", "y axis", 0.0, 0,			   "bcdmnstuv", "z axis", 0.0, 4 );	       pls.col0(2);	       /* wireframe plot */	       if (i==0)		 pls.mesh(x, y, z, opt[k]);	       	       /* magnitude colored wireframe plot */	       else if (i==1)		 pls.mesh(x, y, z, opt[k] | pls.MAG_COLOR);	       	       /* magnitude colored wireframe plot with sides */	       else if (i==2)		 pls.plot3d(x, y, z, opt[k] | pls.MAG_COLOR, 1);	       	       /* magnitude colored wireframe plot with base contour */	       else if (i==3)		 pls.meshc(x, y, z, opt[k] | pls.MAG_COLOR | pls.BASE_CONT,			 clevel);	       	       	       pls.col0(3);	       pls.mtex("t", 1.0, 0.5, 0.5, title[k]);	    }	}        pls.end();    }