# contour-clipping.991202
--- contour.c.ORIG	Thu Dec  2 15:15:03 1999
+++ contour.c	Thu Dec  2 15:13:53 1999
@@ -727,7 +727,11 @@
 {
     struct edge_struct *pe_temp = NULL;
 
+#if 1
+    if (point0->type == INRANGE && point1->type == INRANGE) {
+#else
     if (point0->type != UNDEFINED && point1->type != UNDEFINED) {
+#endif
 
 	pe_temp = (struct edge_struct *)
 	    gp_alloc((unsigned long) sizeof(struct edge_struct), "contour edge");