1
0
mirror of https://github.com/JustinSDK/dotSCAD.git synced 2025-01-17 14:18:13 +01:00
dotSCAD/docs/lib3x-sf_solidifyT.md

55 lines
1.4 KiB
Markdown
Raw Normal View History

2021-06-30 10:57:02 +08:00
# sf_solidifyT
It solidifies two surfaces with triangular mesh.
**Since:** 3.1
## Parameters
- `points1` : A list of `[x, y, z]`s.
- `points2` : A list of `[x, y, z]`s.
- `triangles` : Determine which points are connected by an edge. All triangles have points in the same direction, counter-clockwise. See examples below.
## Examples
use <triangle/tri_delaunay.scad>;
use <surface/sf_solidifyT.scad>;
points = [for(i = [0:50]) rands(-300, 300, 2)];
triangles = tri_delaunay(points);
pts = [for(p = points) [p[0], p[1], rands(100, 150, 1)[0]]];
pts2 = [for(p = pts) [p[0], p[1], p[2] - 100]];
sf_solidifyT(pts, pts2, triangles = triangles);
![sf_solidifyT](images/lib3x-sf_solidifyT-1.JPG)
use <triangle/tri_delaunay.scad>;
use <surface/sf_solidifyT.scad>;
thickness = .2;
a_step = 10;
r_step = 0.2;
scale = 100;
function f(x, y) = (pow(y,2)/pow(2, 2))-(pow(x,2)/pow(2, 2));
pts2d = [
for(a = [a_step:a_step:360])
for(r = [r_step:r_step:2])
let(
x = round(r * cos(a) * 100) / 100,
y = round(r * sin(a) * 100) / 100
)
[x, y]
];
points1 = [for(p = pts2d) scale * [p[0], p[1], f(p[0], p[1])]];
points2 = [for(p = points1) [p[0], p[1], p[2] - scale * thickness]];
triangles = tri_delaunay(pts2d);
sf_solidifyT(points1, points2, triangles);
![sf_solidifyT](images/lib3x-sf_solidifyT-2.JPG)