Index: trunk/src/plugins/rt_topo/crbs.c
===================================================================
--- trunk/src/plugins/rt_topo/crbs.c	(revision 1363)
+++ trunk/src/plugins/rt_topo/crbs.c	(revision 1364)
@@ -123,14 +123,23 @@
 #include <genht/hash.h>
 GRBS_ADDR_HASH(htad_hash);
 
-void crbs_make_point(crbs_t *crbs, double x, double y, double cop, double clr, rtrnd_via_t *via)
+point_t *crbs_make_point(crbs_t *crbs, double x, double y, double cop, double clr, rtrnd_via_t *via)
 {
 	grbs_point_t *gpt;
 	point_t *cpt;
 	crbs_point_t *p;
 
+	cpt = cdt_insert_point(&crbs->cdt, x, y);
+	if (cpt->data != NULL) { /* already initialized */
+		p = cpt->data;
+		if (cop > p->gpt->copper)
+			p->gpt->copper = cop;
+		if (clr > p->gpt->clearance)
+			p->gpt->clearance = clr;
+		return cpt;
+	}
+
 	p = crbs_point_new(crbs);
-	cpt = cdt_insert_point(&crbs->cdt, x, y);
 	cpt->data = p;
 	gpt = grbs_point_new(&crbs->grbs, x, y, cop, clr);
 	gpt->user_data = p;
@@ -140,6 +149,8 @@
 	p->cpt = cpt;
 	p->gpt = gpt;
 	p->obj = via;
+
+	return cpt;
 }
 
 static void crbs_init(crbs_t *crbs, rtrnd_t *ctx)
Index: trunk/src/plugins/rt_topo/crbs.h
===================================================================
--- trunk/src/plugins/rt_topo/crbs.h	(revision 1363)
+++ trunk/src/plugins/rt_topo/crbs.h	(revision 1364)
@@ -67,7 +67,7 @@
 extern grbs_2net_t tn_unknown;
 
 /* create a new point (e.g. for a via) in the triangulation and in grbs */
-void crbs_make_point(crbs_t *crbs, double x, double y, double cop, double clr, rtrnd_via_t *via);
+point_t *crbs_make_point(crbs_t *crbs, double x, double y, double cop, double clr, rtrnd_via_t *via);
 
 #define DIST_HEUR_MULT 1000.0
 
Index: trunk/src/plugins/rt_topo/crbs_cdt.c
===================================================================
--- trunk/src/plugins/rt_topo/crbs_cdt.c	(revision 1363)
+++ trunk/src/plugins/rt_topo/crbs_cdt.c	(revision 1364)
@@ -84,6 +84,7 @@
 	edge_t *e;
 	long n;
 	double maxl2, maxlen = (rt_topo_cfg.wire_thick + rt_topo_cfg.wire_clr/2) * 50; /* split long constrained edges so that no segment is longer than this value */
+	double cop, clr;
 
 	maxl2 = maxlen*maxlen;
 
@@ -95,15 +96,20 @@
 	for(obj = rtrnd_rtree_all_first(&it, &ly->objs); obj != NULL; obj = rtrnd_rtree_all_next(&it)) {
 		switch(obj->hdr.type) {
 			case RTRND_LINE:
-				p1 = cdt_insert_point(&crbs->cdt, obj->line.cline.p1.x, obj->line.cline.p1.y);
-				p2 = cdt_insert_point(&crbs->cdt, obj->line.cline.p2.x, obj->line.cline.p2.y);
-				long_constrained_edge(&crbs->cdt, p1, p2, maxl2, maxlen, obj);
+				cop = obj->line.thickness/2;
+				clr = obj->line.clearance;
+				p1 = crbs_make_point(crbs, obj->line.cline.p1.x, obj->line.cline.p1.y, cop, clr, NULL);
+				if ((obj->line.cline.p1.x != obj->line.cline.p2.x) || (obj->line.cline.p1.y != obj->line.cline.p2.y)) {
+					p2 = crbs_make_point(crbs, obj->line.cline.p2.x, obj->line.cline.p2.y, cop, clr, NULL);
+					long_constrained_edge(&crbs->cdt, p1, p2, maxl2, maxlen, obj);
+				}
 				break;
 			case RTRND_POLY:
+				clr = 0/*obj->poly.clearance*/;
 				v = gdl_last(&obj->poly.rtpoly.lst);
-				p2 = cdt_insert_point(&crbs->cdt, v->x, v->y);
+				p2 = crbs_make_point(crbs, v->x, v->y, 0, clr, NULL);
 				for(v = gdl_first(&obj->poly.rtpoly.lst); v != NULL; v = gdl_next(&obj->poly.rtpoly.lst, v)) {
-					p1 = cdt_insert_point(&crbs->cdt, v->x, v->y);
+					p1 = crbs_make_point(crbs, v->x, v->y, 0, clr, NULL);
 					long_constrained_edge(&crbs->cdt, p1, p2, maxl2, maxlen, obj);
 					p2 = p1;
 				}