Index: cdt.c
===================================================================
--- cdt.c	(revision 33929)
+++ cdt.c	(revision 33930)
@@ -967,7 +967,43 @@
 	}
 }
 
+static void fdump_triangle_anim(FILE *f, cdt_t *cdt, triangle_t *t, int first)
+{
+	static int last_c;
+	int i;
+	pos_t c;
 
+	c = triangle_center_pos(t);
+	fprintf(f, "text %f %f \"%ld\"\n", c.x, c.y, triangle_id(cdt, t));
+	for (i = 0; i < 3; i++) {
+		edge_t *edge = t->e[i];
+		if(last_c != edge->is_constrained) {
+			fprintf(f, "color %s\n", edge->is_constrained ? "red" : "black");
+			fprintf(f, "thick %s\n", edge->is_constrained ? "2" : "1");
+			last_c = edge->is_constrained;
+		}
+		fprintf(f, "line %f %f %f %f\n", (double)edge->endp[0]->pos.x, (double)edge->endp[0]->pos.y, (double)edge->endp[1]->pos.x, (double)edge->endp[1]->pos.y);
+	}
+}
+
+void cdt_fdump_adj_triangles_anim(FILE *f, cdt_t *cdt, triangle_t *t)
+{
+	int i;
+	fprintf(f, "frame\n");
+	fprintf(f, "scale 0.9\n");
+	fprintf(f, "viewport %f %f - %f %f\n", (double)cdt->bbox_tl.x - 1.0, (double)cdt->bbox_tl.y - 1.0, (double)cdt->bbox_br.x + 1.0, (double)cdt->bbox_br.y  + 1.0);
+	fprintf(f, "title \"%ld\"\n", triangle_id(cdt, t));
+
+	fdump_triangle_anim(f, cdt, t, 1);
+	for (i = 0; i < 3; i++) {
+		if (t->adj_t[i] != NULL)
+			fdump_triangle_anim(f, cdt, t->adj_t[i], 0);
+	}
+
+	fprintf(f, "flush\n");
+}
+
+
 int cdt_check_delaunay(cdt_t *cdt, pointlist_node_t **point_violations, trianglelist_node_t **triangle_violations)
 {
 	int delaunay = 1;
Index: cdt.h
===================================================================
--- cdt.h	(revision 33929)
+++ cdt.h	(revision 33930)
@@ -60,6 +60,7 @@
 int cdt_check_delaunay(cdt_t *cdt, pointlist_node_t **point_violations, trianglelist_node_t **triangle_violations);
 void cdt_dump_animator(cdt_t *cdt, int show_circles, pointlist_node_t *point_violations, trianglelist_node_t *triangle_violations);
 void cdt_fdump_animator(FILE *f, cdt_t *cdt, int show_circles, pointlist_node_t *point_violations, trianglelist_node_t *triangle_violations);
+void cdt_fdump_adj_triangles_anim(FILE *f, cdt_t *cdt, triangle_t *t);
 
 /* Dump a cdt script in the format that's suitable for the tester to include */
 void cdt_fdump(FILE *f, cdt_t *cdt);
Index: cdt_test.c
===================================================================
--- cdt_test.c	(revision 33929)
+++ cdt_test.c	(revision 33930)
@@ -328,7 +328,37 @@
 	}
 }
 
+static void cmd_dump_triangles(char *args, int anim)
+{
+	FILE *f;
+	char *end = strpbrk(args, " \t\r\n");
+	long tid;
+	char fn[1024];
 
+	if (end != NULL)
+		*end = '\0';
+
+	for (tid = 0; tid < cdt.triangles.used; tid++) {
+		sprintf(fn, "%s_%03ld", args, tid);
+
+		f = fopen(fn, "w");
+		if (f == NULL) {
+			fprintf(stderr, "dump_triangles: failed to open '%s' for write\n", args);
+			return;
+		}
+
+		if (anim) {
+			cdt_fdump_adj_triangles_anim(f, &cdt, cdt.triangles.array[tid]);
+		}
+/*
+		else
+			cdt_fdump(f, &cdt);
+*/
+		fclose(f);
+	}
+}
+
+
 static void cmd_print_events(char *args)
 {
 	switch(*args) {
@@ -394,6 +424,7 @@
 		else if (strcmp(cmd, "raw_triangle") == 0) cmd_raw_triangle(args);
 		else if (strcmp(cmd, "dump") == 0) cmd_dump(args, 0);
 		else if (strcmp(cmd, "dump_anim") == 0) cmd_dump(args, 1);
+		else if (strcmp(cmd, "dump_triangles_anim") == 0) cmd_dump_triangles(args, 1);
 		else if (strcmp(cmd, "print") == 0) cmd_print(args);
 		else if (strcmp(cmd, "print_events") == 0) cmd_print_events(args);
 		else fprintf(stderr, "syntax error: unknown command '%s'\n", cmd);