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refactor: use _face_normal

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Justin Lin
2022-04-29 08:20:56 +08:00
parent 05443666c3
commit 4fe19bf552
1 changed files with 3 additions and 5 deletions
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8
src/surface/sf_thicken.scad
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@@ -8,13 +8,11 @@
* *
**/ **/
use <../__comm__/_face_normal.scad>;
use <../util/sum.scad>; use <../util/sum.scad>;
use <sf_solidify.scad>; use <sf_solidify.scad>;
module sf_thicken(points, thickness, direction = "BOTH", convexity = 1) { module sf_thicken(points, thickness, direction = "BOTH", convexity = 1) {
function tri_normal(tri) =
let(v = cross(tri[2] - tri[0], tri[1] - tri[0])) v / norm(v);
function vertex_normal(sf, xi, yi) = function vertex_normal(sf, xi, yi) =
let( let(
xy = [xi, yi], xy = [xi, yi],
@@ -35,7 +33,7 @@ module sf_thicken(points, thickness, direction = "BOTH", convexity = 1) {
v2 = sf[vi2[1]][vi2[0]] v2 = sf[vi2[1]][vi2[0]]
) )
if(!(is_undef(v0) || is_undef(v1) || is_undef(v2))) if(!(is_undef(v0) || is_undef(v1) || is_undef(v2)))
tri_normal([v0, v1, v2]) _face_normal([v0, v1, v2])
] ]
) )
sum(normals) / len(normals); sum(normals) / len(normals);
@@ -52,7 +50,7 @@ module sf_thicken(points, thickness, direction = "BOTH", convexity = 1) {
midy = leng_points / 2; midy = leng_points / 2;
midx = leng_point0 / 2; midx = leng_point0 / 2;
nv = tri_normal([points[midy][midx], points[midy + 1][midx], points[midy][midx + 1]]); nv = _face_normal([points[midy][midx], points[midy + 1][midx], points[midy][midx + 1]]);
if(nv * dir_v > 0) { if(nv * dir_v > 0) {
sf_solidify(surface_another, points, convexity = convexity); sf_solidify(surface_another, points, convexity = convexity);