Index: export_openscad.c
===================================================================
--- export_openscad.c	(revision 11828)
+++ export_openscad.c	(revision 11829)
@@ -368,6 +368,11 @@
 
 static void openscad_fill_polygon(pcb_hid_gc_t gc, int n_coords, pcb_coord_t * x, pcb_coord_t * y)
 {
+	int n;
+	fprintf(f, "			pcb_fill_poly([");
+	for(n = 0; n < n_coords-1; n++)
+		pcb_fprintf(f, "[%mm,%mm],", x[n], y[n]);
+	pcb_fprintf(f, "[%mm,%mm]], %f);\n", x[n], y[n], layer_thickness);
 }
 
 static void openscad_calibrate(double xval, double yval)
Index: scad_draw.c
===================================================================
--- scad_draw.c	(revision 11828)
+++ scad_draw.c	(revision 11829)
@@ -57,6 +57,11 @@
 	fprintf(f, "			cube([x2-x1, y2-y1, thick], center=true);\n");
 	fprintf(f, "}\n");
 
+	fprintf(f, "// filled polygon\n");
+	fprintf(f, "module pcb_fill_poly(coords, thick) {\n");
+	fprintf(f, "	linear_extrude(height=thick)\n");
+	fprintf(f, "		polygon(coords);\n");
+	fprintf(f, "}\n");
 
 	fprintf(f, "// filled circle\n");
 	fprintf(f, "module pcb_fcirc(x1, y1, radius, thick) {\n");