Index: trunk/src/plugins/rt_topo/crbs_route.c
===================================================================
--- trunk/src/plugins/rt_topo/crbs_route.c	(revision 1332)
+++ trunk/src/plugins/rt_topo/crbs_route.c	(revision 1333)
@@ -37,7 +37,10 @@
 static int crbs_grbs_draw(crbs_t *crbs, char *fn);
 
 static int crbs_trace_ast = 1;
+static int hop_svg = 0; /* whether to write 3..4 svgs per next_hop call */
 
+static int cnt_grbs = 0;
+
 static long crbs_ast_heuristic(usrch_a_star_t *ctx, void *node)
 {
 	crbs_t *crbs = ctx->user_data;
@@ -148,8 +151,18 @@
 	grbs_addr_t *froma, *toa;
 	grbs_2net_t *gtn = crbs->routing_tn;
 	grbs_detached_addr_t *res = NULL, dtmp;
+	static int hop_cnt = 0;
+	char tmp[128];
 
+	hop_cnt++;
+	printf(" {%d} ", hop_cnt);
 
+	if (hop_svg) {
+		sprintf(tmp, "3_GRBS_routed_%d_h%d_a.svg", cnt_grbs, hop_cnt);
+		crbs_grbs_draw(crbs, tmp);
+	}
+
+
 	froma = grbs_reattach_addr(&crbs->grbs, curr);
 	if (froma == NULL) {
 		printf(" Neigh: can't reattach curr\n");
@@ -156,11 +169,21 @@
 		return NULL;
 	}
 
+	if (hop_svg) {
+		sprintf(tmp, "3_GRBS_routed_%d_h%d_b.svg", cnt_grbs, hop_cnt);
+		crbs_grbs_draw(crbs, tmp);
+	}
+
 	toa = grbs_path_next(&crbs->grbs, gtn, froma, pt->gpt, adir);
 	if (toa != NULL) {
 		grbs_addr_key_t key;
 		htad_entry_t *e;
 
+		if (hop_svg) {
+			sprintf(tmp, "3_GRBS_routed_%d_h%d_c.svg", cnt_grbs, hop_cnt);
+			crbs_grbs_draw(crbs, tmp);
+		}
+
 		if (((froma->type & 0x0f) == ADDR_ARC_CONVEX) || ((froma->type & 0x0f) == ADDR_ARC_CONCAVE)) {
 			if (fabs(froma->obj.arc->new_da) > M_PI) {
 /*				printf("   INVALID arc (too long): %f at P%ld\n", froma->obj.arc->new_da, froma->obj.arc->parent_pt == NULL ? -1 : froma->obj.arc->parent_pt->uid);*/
@@ -198,6 +221,11 @@
 		grbs_path_cleanup_addr(&crbs->grbs, toa);
 	}
 
+	if (hop_svg) {
+		sprintf(tmp, "3_GRBS_routed_%d_h%d_d.svg", cnt_grbs, hop_cnt);
+		crbs_grbs_draw(crbs, tmp);
+	}
+
 	grbs_path_cleanup_addr(&crbs->grbs, froma);
 	return res;
 }
@@ -321,7 +349,6 @@
 	return addr;
 }
 
-static int cnt_grbs = 0;
 static int rt_topo_crbs_route_net(crbs_t *crbs, crbs_2net_t *ctn)
 {
 	usrch_res_t sres;