gridfinity-rebuilt-openscad/tests/openscad_runner.py

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"""
Helpful classes for running OpenScad from Python.
@Copyright Arthur Moore 2024 MIT License
"""
from typing import NamedTuple
class Vec3(NamedTuple):
'''Simple 3d Vector (x, y, z)'''
x: float
y: float
z: float
class CameraArguments(NamedTuple):
"""
Controls the camera position when outputting to png format.
@see `openscad -h`.
"""
translate: Vec3
rotate: Vec3
distance: float
def as_argument(self):
return '--camera=' \
f'{",".join(map(str,self.translate))},{",".join(map(str,self.rotate))},{self.distance}'
def set_variable_argument(var: str, val) -> [str, str]:
"""
Allows setting a variable to a particular value.
@warning value **can** be a function, but this is called for every file, so may generate 'undefined' warnings.
"""
return ['-D', f'{var}={str(val)}']
openscad_binary_windows = 'C:\Program Files\OpenSCAD\openscad.exe'
common_arguments = [
#'--hardwarnings', // Does not work when setting variables by using functions
'--enable=fast-csg',
'--enable=predictible-output',
'--imgsize=1280,720',
'--view=axes',
'--projection=ortho',
] + set_variable_argument('$fa', 8) + set_variable_argument('$fs', 0.25)
top_angle_camera = CameraArguments(Vec3(0,0,0),Vec3(45,0,45),50)