Index: trunk/src/libcschem/Makefile
===================================================================
--- trunk/src/libcschem/Makefile	(revision 338)
+++ trunk/src/libcschem/Makefile	(revision 339)
@@ -1,4 +1,13 @@
 CFLAGS = -I.. -I../../src_3rd
 CFLAGS += -Wall -g
+CFLAGS += -ansi -pedantic
+OBJS = compile.o vtcoutline.o rtree.o
 
+all: $(OBJS)
+
 compile.o: compile.c
+
+vtcoutline.o: vtcoutline.c
+
+clean:
+	rm $(OBJS)
Index: trunk/src/libcschem/TODO.h
===================================================================
--- trunk/src/libcschem/TODO.h	(revision 338)
+++ trunk/src/libcschem/TODO.h	(revision 339)
@@ -1,2 +1,7 @@
+#ifndef TODO_H
+#define TODO_H
+
 typedef int htul_t;
 typedef int htsl_t;
+
+#endif
Index: trunk/src/libcschem/common_types.h
===================================================================
--- trunk/src/libcschem/common_types.h	(revision 338)
+++ trunk/src/libcschem/common_types.h	(revision 339)
@@ -1,2 +1,9 @@
+#ifndef CSCH_COMMON_TYPES_H
+#define CSCH_COMMON_TYPES_H
+
 typedef unsigned long csch_oid_t;
 #define CSCH_INVALID_ID ((csch_oid_t)(0))
+
+typedef unsigned long csch_coord_t;
+
+#endif
Index: trunk/src/libcschem/concrete.h
===================================================================
--- trunk/src/libcschem/concrete.h	(revision 338)
+++ trunk/src/libcschem/concrete.h	(revision 339)
@@ -1,9 +1,30 @@
+#ifndef CSCH_CONCRETE_H
+#define CSCH_CONCRETE_H
 #include "libcschem/common_types.h"
+#include "libcschem/rtree.h"
+#include <genht/htsp.h>
+#include <genht/htip.h>
+#include "TODO.h"
 
 typedef struct csch_sheet_s {
 	htip_t id2obj;          /* id -> object pointer (primary storage); rarely delete from this (undo needs deleted objects) */
 	csch_rtree_t rtree;     /* IDs in screen coords */
-	csch_id_t next_id;
+	csch_oid_t next_id;
 } csch_sheet_t;
 
+typedef enum csch_ctype_s {
+	CSCH_CTYPE_INVALID = 0,
+	CSCH_CTYPE_LINE,
+	CSCH_CTYPE_ARC,
+	CSCH_CTYPE_POLY
+} csch_ctype_t;
 
+
+typedef struct csch_chdr_s {
+	csch_oid_t oid;
+	csch_ctype_t type;
+	csch_oid_t parent;
+	htsp_t attr;
+} csch_chdr_t;
+
+#endif
Index: trunk/src/libcschem/concrete_arc.h
===================================================================
--- trunk/src/libcschem/concrete_arc.h	(nonexistent)
+++ trunk/src/libcschem/concrete_arc.h	(revision 339)
@@ -0,0 +1,14 @@
+#ifndef CSCH_CONCRETE_ARC_H
+#define CSCH_CONCRETE_ARC_H
+#include "libcschem/concrete.h"
+
+typedef struct csch_arc_s { /* type=CSCH_CTYPE_ARC */
+	csch_chdr_t hdr;
+	csch_oid_t pen;
+	double sang, dang;
+	csch_coord_t cx, cy, rx, ry, sx, sy, ex, ey;
+	unsigned svalid:1;
+	unsigned evalid:1;
+} csch_carc_t;
+
+#endif
Index: trunk/src/libcschem/concrete_line.h
===================================================================
--- trunk/src/libcschem/concrete_line.h	(nonexistent)
+++ trunk/src/libcschem/concrete_line.h	(revision 339)
@@ -0,0 +1,11 @@
+#ifndef CSCH_CONCRETE_LINE_H
+#define CSCH_CONCRETE_LINE_H
+#include "libcschem/concrete.h"
+
+typedef struct csch_cline_s { /* type=CSCH_CTYPE_LINE */
+	csch_chdr_t hdr;
+	csch_oid_t pen;
+	csch_coord_t x1, y1, x2, y2;
+} csch_cline_t;
+
+#endif
Index: trunk/src/libcschem/concrete_poly.h
===================================================================
--- trunk/src/libcschem/concrete_poly.h	(nonexistent)
+++ trunk/src/libcschem/concrete_poly.h	(revision 339)
@@ -0,0 +1,13 @@
+#ifndef CSCH_CONCRETE_POLY_H
+#define CSCH_CONCRETE_POLY_H
+#include "libcschem/concrete.h"
+
+#include "libcschem/vtcoutline.h"
+
+typedef struct csch_cpoly_s { /* type=CSCH_CTYPE_POLY */
+	csch_chdr_t hdr;
+	csch_oid_t pen;
+	csch_vtcoutline_t outline;
+} csch_cpoly_t;
+
+#endif
Index: trunk/src/libcschem/vtcoutline.c
===================================================================
--- trunk/src/libcschem/vtcoutline.c	(nonexistent)
+++ trunk/src/libcschem/vtcoutline.c	(revision 339)
@@ -0,0 +1,3 @@
+#define GVT_DONT_UNDEF
+#include "vtcoutline.h"
+#include <genvector/genvector_impl.c>
Index: trunk/src/libcschem/vtcoutline.h
===================================================================
--- trunk/src/libcschem/vtcoutline.h	(nonexistent)
+++ trunk/src/libcschem/vtcoutline.h	(revision 339)
@@ -0,0 +1,28 @@
+#ifndef VTCSCH_COUTLINE_H
+#define VTCSCH_COUTLINE_H
+
+#include <stdlib.h>
+#include <string.h>
+#include "libcschem/concrete.h"
+#include "libcschem/concrete_arc.h"
+#include "libcschem/concrete_line.h"
+
+typedef union csch_coutline_s { /* outline object of a polygon */
+	csch_chdr_t hdr;
+	csch_cline_t line;
+	csch_carc_t arc;
+}  csch_coutline_t;
+
+#define GVT(x) csch_vtcoutline_ ## x
+
+#define GVT_ELEM_TYPE csch_coutline_t
+#define GVT_SIZE_TYPE long
+#define GVT_DOUBLING_THRS 256
+#define GVT_START_SIZE 16
+#define GVT_FUNC
+#define GVT_SET_NEW_BYTES_TO 0
+#include <genvector/genvector_impl.h>
+#define GVT_REALLOC(vect, ptr, size)  realloc(ptr, size)
+#define GVT_FREE(vect, ptr)           free(ptr)
+#include <genvector/genvector_undef.h>
+#endif