openscad/dotSCAD
1
0
Fork 0
mirror of https://github.com/JustinSDK/dotSCAD.git synced 2025-08-12 01:34:12 +02:00
Code Issues Releases Wiki Activity

refactor: use m_replace

Browse Source
This commit is contained in:
Justin Lin
2022-04-20 18:38:07 +08:00
parent 61a1d3d2b1
commit fd18bdd959
1 changed files with 4 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/__comm__/_convex_hull3.scad
View File

@@ -1,4 +1,5 @@
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]]);
@@ -13,16 +14,6 @@ function _fst_v3(pts, leng, n, d, i) =
let(nd = n * (pts[i] - pts[0]))
nd != 0 ? [i, nd] : _fst_v3(pts, leng, n, nd, i + 1);
function m_assign(m, i, j, v) =
let(lt = m[i])
[
for(r = [0:len(m) - 1])
if(r == i)
[for(c = [0:len(lt) - 1]) c == j ? v : lt[c]]
else
m[r]
];
function next_vis(i, pts, cur_faces, cur_faces_leng, next, vis, j = 0) =
j == cur_faces_leng ? [next, vis] :
let(
@@ -30,9 +21,9 @@ function next_vis(i, pts, cur_faces, cur_faces_leng, next, vis, j = 0) =
d = (pts[f[0]] - pts[i]) * normal(pts, f),
nx = d >= 0 ? [each next, f] : next,
s = sign(d),
vis1 = m_assign(vis, f[0], f[1], s),
vis2 = m_assign(vis1, f[1], f[2], s),
vis3 = m_assign(vis2, f[2], f[0], s)
vis1 = m_replace(vis, f[1], f[0], s),
vis2 = m_replace(vis1, f[2], f[1], s),
vis3 = m_replace(vis2, f[0], f[2], s)
)
next_vis(i, pts, cur_faces, cur_faces_leng, nx, vis3, j + 1);