Index: trunk/src/layer.h
===================================================================
--- trunk/src/layer.h	(revision 19350)
+++ trunk/src/layer.h	(revision 19351)
@@ -111,6 +111,7 @@
 #include "globalconst.h"
 #include "global_typedefs.h"
 #include "attrib.h"
+#include "obj_common.h"
 #include "obj_arc_list.h"
 #include "obj_line_list.h"
 #include "obj_poly_list.h"
@@ -138,6 +139,7 @@
 			char *color;                   /* strdup'd */
 			int no_drc;                    /* whether to ignore the layer when checking the design rules */
 			const char *cookie;            /* for UI layers: registration cookie; NULL for unused UI layers */
+			pcb_xform_t xform;             /* layer specified rendering transformation */
 		} real;
 		struct { /* A subcircuit layer binding; list data are local but everything else is coming from board layers */
 			pcb_layer_t *real;             /* NULL if unbound */
Index: trunk/src/obj_common.h
===================================================================
--- trunk/src/obj_common.h	(revision 19350)
+++ trunk/src/obj_common.h	(revision 19351)
@@ -92,6 +92,10 @@
 	pcb_coord_t X2, Y2;     /* and lower right corner */
 };
 
+typedef struct pcb_xform_s {   /* generic object transformation */
+	pcb_coord_t bloat;   /* if non-zero, bloat (positive) or shrink (negative) by this value */
+} pcb_xform_t;
+
 /* Return the user readable name of an object type in a string; never NULL */
 const char *pcb_obj_type_name(pcb_objtype_t type);