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refactor: vt operation

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Justin Lin
2022-04-21 07:48:07 +08:00
parent a5887d3daa
commit 74b1715e97
1 changed files with 15 additions and 18 deletions
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33
src/rounded_cube.scad
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@@ -12,37 +12,34 @@ use <__comm__/__frags.scad>;
use <__comm__/__nearest_multiple_of_4.scad>; use <__comm__/__nearest_multiple_of_4.scad>;
module rounded_cube(size, corner_r, center = false) { module rounded_cube(size, corner_r, center = false) {
is_flt = is_num(size); dimension = is_num(size) ? [size, size, size] : size;
x = is_flt ? size : size.x; half_dim = dimension / 2;
y = is_flt ? size : size.y;
z = is_flt ? size : size.z;
corner_frags = __nearest_multiple_of_4(__frags(corner_r)); $fn = __nearest_multiple_of_4(__frags(corner_r));
edge_d = corner_r * cos(180 / corner_frags); edge_d = corner_r * cos(180 / $fn);
half_x = x / 2; half_dim_m_edge = half_dim - [edge_d, edge_d, edge_d];
half_y = y / 2;
half_z = z / 2;
half_l = half_x - edge_d;
half_w = half_y - edge_d;
half_h = half_z - edge_d;
pair = [1, -1]; pair = [1, -1];
corners = [ corners = [
for(z = pair, y = pair, x = pair) for(z = pair, y = pair, x = pair)
[half_l * x, half_w * y, half_h * z] [
half_dim_m_edge.x * x,
half_dim_m_edge.y * y,
half_dim_m_edge.z * z
]
]; ];
module corner(i) { module corner(i) {
translate(corners[i]) translate(corners[i])
sphere(corner_r, $fn = corner_frags); sphere(corner_r);
} }
center_pts = center ? [0, 0, 0] : [half_x, half_y, half_z]; center_pts = center ? [0, 0, 0] : half_dim;
// Don't use `hull() for(...) {...}` because it's slow. // Don't use `hull() for(...) {...}` because it's slow.
translate(center_pts) hull() { translate(center_pts)
hull() {
corner(0); corner(0);
corner(1); corner(1);
corner(2); corner(2);
@@ -54,7 +51,7 @@ module rounded_cube(size, corner_r, center = false) {
} }
// hook for testing // hook for testing
test_rounded_edge_corner_center(corner_frags, corners, center_pts); test_rounded_edge_corner_center($fn, corners, center_pts);
} }
// override it to test // override it to test