Index: trunk/src_plugins/rbs_routing/map.c
===================================================================
--- trunk/src_plugins/rbs_routing/map.c	(nonexistent)
+++ trunk/src_plugins/rbs_routing/map.c	(revision 38732)
@@ -0,0 +1,118 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design - Rubber Band Stretch Router
+ *  Copyright (C) 2024 Tibor 'Igor2' Palinkas
+ *  (Supported by NLnet NGI0 Entrust in 2024)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *  Contact:
+ *    Project page: http://repo.hu/projects/pcb-rnd
+ *    lead developer: http://repo.hu/projects/pcb-rnd/contact.html
+ *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
+ */
+
+#include <libgrbs/route.h>
+#include "obj_pstk_inlines.h"
+
+RND_INLINE void make_point_from_pstk_shape(rbsr_map_t *rbs, pcb_pstk_t *ps, pcb_pstk_shape_t *shp, pcb_layer_t *ly)
+{
+	pcb_board_t *pcb = rbs->pcb;
+	rnd_coord_t clr = obj_pstk_get_clearance(pcb, ps, ly);
+	rnd_coord_t copdia, x, y;
+	grbs_line_t *line;
+	grbs_point_t *pt, *pt2;
+	grbs_2net_t *tn;
+	int tries = 0;
+
+	retry:;
+	switch(shp->shape) {
+		case PCB_PSSH_LINE:
+			copdia = shp->data.line.thickness;
+			TODO("rather do a 4-corner solution here");
+			if (shp->data.line.square)
+				copdia *= sqrt(2);
+			x = ps->x + shp->data.line.x1;
+			y = ps->y + shp->data.line.y1;
+			pt = grbs_point_new(&rbs->grbs, RBSR_R2G(x), RBSR_R2G(y), RBSR_R2G(copdia), RBSR_R2G(clr));
+			x = ps->x + shp->data.line.x2;
+			y = ps->y + shp->data.line.y2;
+			pt2 = grbs_point_new(&rbs->grbs, RBSR_R2G(x), RBSR_R2G(y), RBSR_R2G(copdia), RBSR_R2G(clr));
+			tn = grbs_2net_new(&rbs->grbs, copdia, clr);
+			line = grbs_line_realize(&rbs->grbs, tn, pt, pt2);
+			line->immutable = 1;
+			break;
+
+		case PCB_PSSH_CIRC:
+			copdia = shp->data.circ.dia;
+			x = ps->x + shp->data.circ.x;
+			y = ps->y + shp->data.circ.y;
+			grbs_point_new(&rbs->grbs, RBSR_R2G(x), RBSR_R2G(y), RBSR_R2G(copdia), RBSR_R2G(clr));
+			break;
+			
+		case PCB_PSSH_HSHADOW:
+			copdia = 0;
+			shp = pcb_pstk_shape_mech_at(pcb, ps, ly);
+			tries++;
+			if (tries < 2)
+				goto retry;
+
+			rnd_message(RND_MSG_ERROR, "rbs_routing: failed to figure padstack shape around %mm;%mm in make_point_from_pstk_shape(): infinite recursion\n", ps->x, ps->y);
+			break;
+
+		case PCB_PSSH_POLY:
+			TODO("implement me");
+			abort();
+	}
+}
+
+RND_INLINE int map_pstks(rbsr_map_t *rbs)
+{
+	pcb_board_t *pcb = rbs->pcb;
+	pcb_layer_t *ly = pcb_get_layer(pcb->Data, rbs->lid);
+	pcb_pstk_t *ps;
+
+	assert(ly != NULL);
+
+	/* add all padstacks as points */
+	for(ps = padstacklist_first(&pcb->Data->padstack); ps != NULL; ps = ps->link.next) {
+		pcb_pstk_shape_t *shp;
+		shp = pcb_pstk_shape_at(pcb, ps, ly); /* prefer copper shape */
+		if (shp == NULL)
+			shp = pcb_pstk_shape_mech_at(pcb, ps, ly);
+		if (shp != NULL)
+			make_point_from_pstk_shape(rbs, ps, shp, ly);
+	}
+	
+
+	TODO("also add all non-padstack terminals");
+	return 0;
+}
+
+int rbsr_map_pcb(rbsr_map_t *dst, pcb_board_t *pcb, rnd_layer_id_t lid)
+{
+	int res;
+
+	grbs_uninit(&dst->grbs);
+	grbs_init(&dst->grbs);
+	dst->pcb = pcb;
+	dst->lid = lid;
+
+	res = map_pstks(dst);
+
+	return res;
+}
+
Index: trunk/src_plugins/rbs_routing/map.h
===================================================================
--- trunk/src_plugins/rbs_routing/map.h	(nonexistent)
+++ trunk/src_plugins/rbs_routing/map.h	(revision 38732)
@@ -0,0 +1,21 @@
+#include "layer.h"
+
+/* undo leftover from librnd's own rtree before including grbs' rtree */
+#undef RTR
+#undef RTRU
+#undef RTREE_NO_TREE_TYPEDEFS
+
+#include <libgrbs/grbs.h>
+
+typedef struct rbsr_map_s {
+
+	/* the map is created for a single layer into grbs */
+	pcb_board_t *pcb;
+	rnd_layer_id_t lid;
+	grbs_t grbs;
+
+} rbsr_map_t;
+
+/* conversion between rnd coords and grbs coords forth and back; use micrometers for grbs */
+#define RBSR_R2G(v)  ((double)(v)/1000.0)
+#define RBSR_G2R(v)  ((rnd_coord_t)rnd_round((v)*1000.0))
Index: trunk/src_plugins/rbs_routing/rbs_routing.c
===================================================================
--- trunk/src_plugins/rbs_routing/rbs_routing.c	(revision 38731)
+++ trunk/src_plugins/rbs_routing/rbs_routing.c	(revision 38732)
@@ -35,6 +35,10 @@
 #include <librnd/hid/hid_menu.h>
 #include "menu_internal.c"
 
+#include "map.h"
+
+#include "map.c"
+
 static const char pcb_acts_RbsConnect[] = "RbsConnect()";
 static const char pcb_acth_RbsConnect[] = "Make a new rubber band stretch connection between two points";
 /* DOC: ... */