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refactor: p

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This commit is contained in:
Justin Lin 2022-04-20 18:39:58 +08:00
parent fd18bdd959
commit 1f0513b7ff
1 changed files with 2 additions and 1 deletions
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src/__comm__/_convex_hull3.scad
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@ -1,7 +1,8 @@
use <../util/sorted.scad>;
use <../matrix/m_replace.scad>;
function normal(pts, f) = cross(pts[f[1]] - pts[f[0]], pts[f[2]] - pts[f[0]]);
function normal(pts, f) =
let(p = pts[f[0]]) cross(pts[f[1]] - p, pts[f[2]] - p);
function _fst_v1(pts, leng, i) =
i == leng || (pts[i] - pts[0]) != [0, 0, 0] ? i : _fst_v1(pts, leng, i + 1);