mirror of
https://github.com/JustinSDK/dotSCAD.git
synced 2025-01-17 22:28:16 +01:00
43 lines
1.1 KiB
Markdown
43 lines
1.1 KiB
Markdown
|
# m_rotation
|
||
|
|
|
||
|
|
Generate a 4x4 transformation matrix which can pass into `multmatrix` to rotate the child element about the axis of the coordinate system or around an arbitrary axis.
|
||
|
|
|
||
|
|
## Parameters
|
||
|
|
|
||
|
|
- `a` : If it's `[deg_x, deg_y, deg_z]`, the rotation is applied in the order `x`, `y`, `z`. If it's `[deg_x, deg_y]`, the rotation is applied in the order `x`, `y`. If it's`[deg_x]`, the rotation is only applied to the `x` axis. If it's an number, the rotation is only applied to the `z` axis or an arbitrary axis.
|
||
|
|
- `v`: A vector allows you to set an arbitrary axis about which the object will be rotated. When `a` is an array, the `v` argument is ignored.
|
||
|
|
|
||
|
|
## Examples
|
||
|
|
|
||
|
|
include <m_rotation.scad>;
|
||
|
|
|
||
|
|
point = [20, 0, 0];
|
||
|
|
a = [0, -45, 45];
|
||
|
|
|
||
|
|
hull() {
|
||
|
|
sphere(1);
|
||
|
|
multmatrix(m_rotation(a))
|
||
|
|
translate(point)
|
||
|
|
sphere(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
include <m_rotation.scad>;
|
||
|
|
|
||
|
|
v = [10, 10, 10];
|
||
|
|
|
||
|
|
hull() {
|
||
|
|
sphere(1);
|
||
|
|
translate(v)
|
||
|
|
sphere(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
p = [10, 10, 0];
|
||
|
|
for(i = [0:20:340]) {
|
||
|
|
multmatrix(m_rotation(a = i, v = v))
|
||
|
|
translate(p)
|
||
|
|
sphere(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
|