Index: trunk/src_plugins/query/net_len.c
===================================================================
--- trunk/src_plugins/query/net_len.c	(revision 34937)
+++ trunk/src_plugins/query/net_len.c	(revision 34938)
@@ -455,22 +455,27 @@
 	return ctx.seglen;
 }
 
+/* returns 1 if newly inited */
+RND_INLINE int pcb_qry_parent_net_lenseg_init(pcb_qry_exec_t *ec)
+{
+	if (ec->obj2lenseg_inited)
+		return 0;
 
+	htpp_init(&ec->obj2lenseg, ptrhash, ptrkeyeq);
+	htpi_init(&ec->obj2lenseg_cc, ptrhash, ptrkeyeq);
+	vtp0_init(&ec->obj2lenseg_free);
+	ec->obj2lenseg_inited = 1;
+	return 1;
+}
+
 pcb_qry_netseg_len_t *pcb_qry_parent_net_lenseg(pcb_qry_exec_t *ec, pcb_any_obj_t *from)
 {
-	pcb_qry_netseg_len_t *res;
+	pcb_qry_netseg_len_t *res = NULL;
 
 	if ((from->type != PCB_OBJ_LINE) && (from->type != PCB_OBJ_ARC) && (from->type != PCB_OBJ_PSTK))
 		return NULL;
 
-	if (!ec->obj2lenseg_inited) {
-		htpp_init(&ec->obj2lenseg, ptrhash, ptrkeyeq);
-		htpi_init(&ec->obj2lenseg_cc, ptrhash, ptrkeyeq);
-		vtp0_init(&ec->obj2lenseg_free);
-		ec->obj2lenseg_inited = 1;
-		res = NULL;
-	}
-	else
+	if (!pcb_qry_parent_net_lenseg_init(ec))
 		res = htpp_get(&ec->obj2lenseg, from);
 
 	if (res == NULL)
@@ -485,6 +490,21 @@
 	vtp0_uninit(&ns->objs);
 }
 
+pcb_qry_netseg_len_t *pcb_qry_parent_net_len_mapseg(pcb_board_t *pcb, pcb_any_obj_t *from)
+{
+	pcb_qry_netseg_len_t *res;
+	pcb_qry_exec_t ec = {0};
+
+	ec.pcb = pcb;
+	pcb_qry_parent_net_lenseg_init(&ec);
+
+	res = pcb_qry_parent_net_lenseg_(&ec, from);
+
+	pcb_qry_uninit(&ec);
+
+	return res;
+}
+
 const char pcb_acts_QueryCalcNetLen[] = "QueryCalcNetLen(netname)";
 const char pcb_acth_QueryCalcNetLen[] = "Calculates the network length by netname; returns an error message string or a positive coord with the length";
 fgw_error_t pcb_act_QueryCalcNetLen(fgw_arg_t *res, int argc, fgw_arg_t *argv)
Index: trunk/src_plugins/query/net_len.h
===================================================================
--- trunk/src_plugins/query/net_len.h	(revision 34937)
+++ trunk/src_plugins/query/net_len.h	(revision 34938)
@@ -12,6 +12,9 @@
 
 pcb_qry_netseg_len_t *pcb_qry_parent_net_lenseg(pcb_qry_exec_t *ec, pcb_any_obj_t *from);
 
+/* Return a segment (up to the first junction) starting from an object */
+pcb_qry_netseg_len_t *pcb_qry_parent_net_len_mapseg(pcb_board_t *pcb, pcb_any_obj_t *from);
 
+
 void pcb_qry_lenseg_free_fields(pcb_qry_netseg_len_t *ns);