#include "cplot.h" g_chop( x, y, xc, yc, c ) int *x, *y, xc, yc, c; { if( c & 1 ) { /* Must force floating point or funny overflow conditions arise. */ *y =+ (yc - *y) * 1.0 * (g_sxlo - *x)/(xc - *x); *x = g_sxlo; } else if( c & 2 ) { *y =+ (yc - *y) * 1.0 * (g_sxhi - *x) / (xc - *x); *x = g_sxhi; } else if( c & 4 ) { *x =+ (xc - *x) * 1.0 * (g_sylo - *y)/(yc - *y); *y = g_sylo; } else if( c & 8 ) { *x =+ (xc - *x) * 1.0 * (g_syhi - *y)/(yc - *y); *y = g_syhi; } return( g_where( *x, *y )); }