> For the complete documentation index, see [llms.txt](https://tlcfem.gitbook.io/suanpan-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tlcfem.gitbook.io/suanpan-manual/material/wrapper/rotation3d.md).

# Rotation3D

3D Rotation Wrapper

Alters the inclination of the 3D host material model, it is typically used with anisotropic material models.

## Syntax

```
material Rotation3D (1) (2) (3...5)
# (1) int, unique material tag
# (2) int, associated material tag
# (3...5) double, three components of rotation vector
```

Rotations in 3D space may have different forms. The [Euler vector](https://en.wikipedia.org/wiki/Axis%E2%80%93angle_representation) is used to represent the axis and angle of rotation. Parameters `(3)` to `(5)` are three components of the vector $$\mathbf{\theta}$$.

The response of attached 3D material model will be output when recorded.


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