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Source at commit 688f2ab9345ca377690cce88dda52fe2cd0ec1ff created 7 years 2 months ago. By Werner Almesberger, dimensions can now be specified in micrometers (um) | |
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1 | /* |
2 | * overlap.h - Test for overlaps |
3 | * |
4 | * Written 2009, 2010 by Werner Almesberger |
5 | * Copyright 2009, 2010 by Werner Almesberger |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | */ |
12 | |
13 | #ifndef OVERLAP_H |
14 | #define OVERLAP_H |
15 | |
16 | |
17 | enum allow_overlap { |
18 | ao_none, |
19 | ao_touch, |
20 | ao_any, |
21 | }; |
22 | |
23 | |
24 | /* |
25 | * Avoid inst.h -> layer.h -> overlay.h -> inst.h loop |
26 | */ |
27 | |
28 | struct inst; |
29 | |
30 | |
31 | /* |
32 | * "inside" returns 1 if "a" is completely enclosed by "b". If "a" == "b", |
33 | * that also counts as "a" being inside "b". |
34 | */ |
35 | |
36 | int inside(const struct inst *a, const struct inst *b); |
37 | |
38 | /* |
39 | * "overlap" returns 1 if "a" and "b" have at least one point in common. |
40 | */ |
41 | |
42 | int overlap(const struct inst *a, const struct inst *b, |
43 | enum allow_overlap allow); |
44 | |
45 | #endif /* !OVERLAP_H */ |
46 |
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