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Rotation #439

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Merged
merged 8 commits into from
Mar 27, 2024
Merged

Rotation #439

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23cbf62
added rotation property
BalzaniEdoardo Mar 19, 2024
1f310a6
added a rotate method to rotate along axis
BalzaniEdoardo Mar 19, 2024
22cfa4f
fixed axis
BalzaniEdoardo Mar 19, 2024
3c41a09
added docstrings
BalzaniEdoardo Mar 19, 2024
77bdb41
rotate in local coord
BalzaniEdoardo Mar 27, 2024
5f60395
fix typo
BalzaniEdoardo Mar 27, 2024
9feabbc
Merge branch 'main' into rotation
BalzaniEdoardo Mar 27, 2024
7662e2b
black-ed
BalzaniEdoardo Mar 27, 2024
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31 changes: 31 additions & 0 deletions fastplotlib/graphics/_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
from dataclasses import dataclass

import numpy as np
import pylinalg as la

from pygfx import WorldObject

Expand Down Expand Up @@ -142,6 +143,14 @@ def position_y(self, val):
def position_z(self, val):
self.world_object.world.z = val

@property
def rotation(self):
return self.world_object.local.rotation

@rotation.setter
def rotation(self, val):
self.world_object.local.rotation = val

@property
def visible(self) -> bool:
"""Access or change the visibility."""
Expand Down Expand Up @@ -196,6 +205,28 @@ def __del__(self):
self.deleted = True
del WORLD_OBJECTS[self.loc]

def rotate(self, alpha: float, axis: Literal["x", "y", "z"] = "y"):
"""Rotate the Graphic with respect to the world.

Parameters
----------
alpha :
Rotation angle in radians.
axis :
Rotation axis label.
"""
if axis == "x":
rot = la.quat_from_euler((alpha, 0), order="XY")
elif axis == "y":
rot = la.quat_from_euler((0, alpha), order="XY")
elif axis == "z":
rot = la.quat_from_euler((0, alpha), order="XZ")
else:
raise ValueError(
f"`axis` must be either `x`, `y`, or `z`. `{axis}` provided instead!"
)
self.rotation = la.quat_mul(rot, self.rotation)


class Interaction(ABC):
"""Mixin class that makes graphics interactive"""
Expand Down