splinecurves2d
3

12
0	0	1
1	0	1
1	0.6	1
0	0.6	1
0.2	0.6	1
0.8	0.6	1
0.8	0.8	1
0.2	0.8	1

0.5	0.15	3
0.65	0.3	3
0.5	0.45	3
0.35	0.3	3


13
1	0	2	1	2	1	-bc=1
1	0	2	2	3	1	-bc=2
1	0	2	3	6	1	-bc=2
1	2	2	6	5	1	-bc=2
1	0	2	5	4	1	-bc=2
1	0	2	4	1	1	-bc=2

2	0	2	6	7	1	-bc=2
2	0	2	7	8	1	-bc=2
2	0	2	8	5	1	-bc=2

3	1	2	9	10	3	-bc=2
3	1	2	10	11	3	-bc=2
3	1	2	11	12	3	-bc=2
3	1	2	12	9	3	-bc=2