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from __future__ import annotations
import pytest
import pyvista as pv
from pyvista.plotting.mapper import PointGaussianMapper
@pytest.fixture
def mapper(sphere):
sphere['array'] = sphere.points[:, 2]
pl = pv.Plotter()
actor = pl.add_points(sphere, style='points_gaussian')
return actor.mapper
def test_mapper_init(mapper):
assert isinstance(mapper, PointGaussianMapper)
assert 'False' in repr(mapper)
assert 'Emissive' in repr(mapper)
def test_emissive(mapper):
assert isinstance(mapper.emissive, bool)
emissive = True
mapper.emissive = emissive
assert mapper.emissive == emissive
def test_scale_factor(mapper):
assert isinstance(mapper.scale_factor, float)
scale_factor = 2.0
mapper.scale_factor = scale_factor
assert mapper.scale_factor == scale_factor
def test_scale_array(mapper):
assert mapper.scale_array is None
with pytest.raises(KeyError, match='does not exist'):
mapper.scale_array = 'foo'
scale_array = 'array'
mapper.scale_array = scale_array
assert mapper.scale_array == scale_array
def test_use_circular_splat(mapper):
mapper.use_circular_splat()
assert 'offsetVCVSOutput' in mapper.GetSplatShaderCode()
mapper.use_default_splat()
assert mapper.GetSplatShaderCode() is None
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