Index: trunk/src/obj_arc.h
===================================================================
--- trunk/src/obj_arc.h	(revision 5414)
+++ trunk/src/obj_arc.h	(revision 5415)
@@ -45,7 +45,7 @@
 pcb_arc_t *pcb_element_arc_alloc(pcb_element_t *Element);
 void pcb_arc_free(pcb_arc_t *data);
 
-pcb_arc_t *pcb_arc_new(pcb_layer_t *Layer, pcb_coord_t X1, pcb_coord_t Y1, pcb_coord_t width, pcb_coord_t height, pcb_angle_t sa, pcb_angle_t dir, pcb_coord_t Thickness, pcb_coord_t Clearance, pcb_flag_t Flags);
+pcb_arc_t *pcb_arc_new(pcb_layer_t *Layer, pcb_coord_t center_x, pcb_coord_t center_y, pcb_coord_t width_r, pcb_coord_t height_r, pcb_angle_t start_angle, pcb_angle_t delta_angle, pcb_coord_t Thickness, pcb_coord_t Clearance, pcb_flag_t Flags);
 void *pcb_arc_destroy(pcb_layer_t *Layer, pcb_arc_t *Arc);
 
 /* Add objects without creating them or making any "sanity modifications" to them */