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Code Issues Releases Wiki Activity

remove swap_surface param

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Justin Lin
2021-06-22 17:45:25 +08:00
parent 629edc0422
commit 0aaf599868
2 changed files with 85 additions and 2 deletions
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docs/lib3x-sf_thicken.md Normal file
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# sf_thicken
It thickens a surface, described by a m * n list of `[x, y, z]`s.
## Parameters
- `points` : A m * n list of `[x, y, z]`s. See examples below.
- `thickness` : The depth of the thickening.
- `direction` : The direction of thickening. It accepts `"BOTH"` (default), `"FORWARD"` or `"BACKWARD"`. Thickening is applied in both directions from the surface, the direction of the surface normals or the opposite direction to the surface normals. It also accept a direction vector `[x, y, z]`. Thickening is only applied in the direction you give.
- `swap_surface` : The direction of thickening.
## Examples
use <sf_thicken.scad>;
points = [
[[0, 0, 1], [1, 0, 2], [2, 0, 2], [3, 0, 3]],
[[0, 1, 1], [1, 1, 4], [2, 1, 0], [3, 1, 3]],
[[0, 2, 1], [1, 2, 3], [2, 2, 1], [3, 2, 3]],
[[0, 3, 1], [1, 3, 3], [2, 3, 1], [3, 3, 3]]
];
thickness = 0.5;
sf_thicken(points, thickness);
![sf_thicken](images/lib3x-sf_thicken-1.JPG)
use <sf_thicken.scad>;
function f(x, y) =
30 * (
cos(sqrt(pow(x, 2) + pow(y, 2))) +
cos(3 * sqrt(pow(x, 2) + pow(y, 2)))
);
thickness = 2;
min_value = -200;
max_value = 200;
resolution = 10;
points = [
for(y = [min_value:resolution:max_value])
[
for(x = [min_value:resolution:max_value])
[x, y, f(x, y)]
]
];
sf_thicken(points, thickness);
![sf_thicken](images/lib3x-sf_thicken-2.JPG)
use <sf_thicken.scad>;
function f(x, y) =
30 * (
cos(sqrt(pow(x, 2) + pow(y, 2))) +
cos(3 * sqrt(pow(x, 2) + pow(y, 2)))
);
thickness = 2;
min_value = -200;
max_value = 200;
resolution = 10;
style = "LINES";
points = [
for(y = [min_value:resolution:max_value])
[
for(x = [min_value:resolution:max_value])
[x, y, f(x, y)]
]
];
sf_thicken(points, thickness, style);
![sf_thicken](images/lib3x-sf_thicken-3.JPG)