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| author | Akshay <[email protected]> | 2020-12-12 14:23:11 +0000 |
|---|---|---|
| committer | Akshay <[email protected]> | 2020-12-12 14:23:11 +0000 |
| commit | e3d58e974a07b39922696697f23727c6ae333d04 (patch) | |
| tree | 254d6ed6243f835303bb16356641d70f1e2726f2 /lib | |
| parent | 15e54117f32d225f6a89320c0d80f45e55cc43bd (diff) | |
rotate is now a util
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Utils.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Utils.hs b/lib/Utils.hs index 6358230..56d9c69 100644 --- a/lib/Utils.hs +++ b/lib/Utils.hs | |||
| @@ -52,6 +52,10 @@ shear c (x, y) = (c * x, c * y) | |||
| 52 | inside (p, q) (r, s) (a, b) = bet a (p, r) && bet b (q, s) | 52 | inside (p, q) (r, s) (a, b) = bet a (p, r) && bet b (q, s) |
| 53 | inside' (p, q) (r, s) (a, b) = bet' a (p, r) && bet' b (q, s) | 53 | inside' (p, q) (r, s) (a, b) = bet' a (p, r) && bet' b (q, s) |
| 54 | 54 | ||
| 55 | rotate (x, y) t = (nx, ny) | ||
| 56 | where nx = x*cos(pi*t/180) - y*sin(pi*t/180) | ||
| 57 | ny = x*sin(pi*t/180) + y*cos(pi*t/180) | ||
| 58 | |||
| 55 | -- [f, f.f, f.f.f, ...] | 59 | -- [f, f.f, f.f.f, ...] |
| 56 | repeatF f = f : map (f .) (repeatF f) | 60 | repeatF f = f : map (f .) (repeatF f) |
| 57 | 61 | ||