Test Cases for GNCutter

We are serious about quality assurance and accuracy of our nesting software and therefore we provided several testing sets of the calculation engine. The test cases and results are summarized below for you consideration. We performed two types of testing: Nesting and Guillotine.

Each test case contains the following:

Stock Width.
Number of Parts.
Input parts file in comma-separated (CSV) format.
Calculated Stock Height.
Calculated Stock Usage (utilization) in percents.
Output layout file in comma-separated (CSV) format.
Output layout screenshot in JPEG format.

The nesting test examples are organized in seven categories from C1 to C7 with three problem in each category (P1..P3). These examples are provided from the article:

E. Hopper and B. C. H. Turton. An Empirical Investigation of Meta-heuristic and Heuristic Algorithms for a 2D Packing Problem. European Journal of Operational Research 128/1, 34-57, 2000.

No.	Stock Width	Number of Parts	Parts File	Stock Height	Stock Usage,%	Layout File (CSV)	Layout Screenshot
1	20	16	C1(P1)	21	95.24	C1(P1)	C1(P1)
2	20	17	C1(P2)	22	90.91	C1(P2)	C1(P2)
3	20	16	C1(P3)	22	90.91	C1(P3)	C1(P3)
4	40	25	C2(P1)	16	93.75	C2(P1)	C2(P1)
5	40	25	C2(P2)	16	93.75	C2(P2)	C2(P2)
6	40	25	C2(P3)	16	93.75	C2(P3)	C2(P3)
7	60	28	C3(P1)	32	93.75	C3(P1)	C3(P1)
8	40	29	C3(P2)	32	93.75	C3(P2)	C3(P2)
9	40	28	C3(P3)	32	93.75	C3(P3)	C3(P3)
10	60	49	C4(P1)	63	95.24	C4(P1)	C4(P1)
11	60	49	C4(P2)	63	95.24	C4(P2)	C4(P2)
12	60	49	C4(P3)	62	96.77	C4(P3)	C4(P3)
13	60	73	C5(P1)	93	97.83	C5(P1)	C5(P1)
14	60	73	C5(P2)	94	97.83	C5(P2)	C5(P2)
15	60	73	C5(P3)	91	98.9	C5(P3)	C5(P3)
16	80	97	C6(P1)	123	97.56	C6(P1)	C6(P1)
17	80	97	C6(P2)	122	98.36	C6(P2)	C6(P2)
18	80	97	C6(P3)	123	98.36	C6(P3)	C6(P3)
19	160	196	C7(P1)	244	98.36	C7(P1)	C7(P1)
20	160	197	C7(P2)	244	98.36	C7(P2)	C7(P2)
21	160	196	C7(P3)	243	98.77	C7(P3)	C7(P3)

The guillotine test examples are organized in seven categories from T1 to T7 with three problem in each category (a,b,c). These examples are provided from:

E. Hopper. Two-dimensional packing utilizing evolutionary algorithms and other meta-heuristic methods. PhD Thesis, Cardiff University, 2000.

No.	Stock Width	Number of Parts	Parts File	Stock Height	Stock Usage,%	Layout File (CSV)	Layout Screenshot
1	200	17	T1a	232	86.21	T1a	T1a
2	200	17	T1b	222	90.09	T1b	T1b
3	200	17	T1c	242	82.64	T1c	T1c
4	200	25	T2a	210	95.24	T2a	T2a
5	200	25	T2b	228	87.72	T2b	T2b
6	200	25	T2c	239	83.68	T2c	T2c
7	200	29	T3a	220	90.91	T3a	T3a
8	200	29	T3b	223	89.69	T3b	T3b
9	200	29	T3c	226	88.50	T3c	T3c
10	200	49	T4a	223	89.69	T4a	T4a
11	200	49	T4b	223	89.69	T4b	T4b
12	200	49	T4c	226	88.50	T4c	T4c
13	200	72	T5a	213	93.90	T5a	T5a
14	200	72	T5b	224	89.29	T5b	T5b
15	200	72	T5c	227	88.11	T5c	T5c
16	200	97	T6a	213	93.90	T6a	T6a
17	200	97	T6b	213	93.90	T6b	T6b
18	200	97	T6c	209	95.69	T6c	T6c
19	200	199	T7a	210	95.24	T7a	T7a
20	200	199	T7b	208	96.15	T7b	T7b
21	200	199	T7c	213	93.90	T7c	T7c