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# -*- coding: utf-8 -*-
import numpy as np
from vispy import scene
from vispy.geometry import create_cube
from vispy.testing import run_tests_if_main, requires_pyopengl
@requires_pyopengl()
def test_mesh_color():
# Create visual
vertices, filled_indices, outline_indices = create_cube()
axis = scene.visuals.Mesh(vertices['position'], outline_indices,
color='black', mode='lines')
# Change color (regression test for a bug that caused this to reset
# the vertex data to None)
axis.color = (0.1, 0.3, 0.7, 0.9)
new_vertices = axis.mesh_data.get_vertices()
np.testing.assert_allclose(axis.color.rgba, (0.1, 0.3, 0.7, 0.9))
np.testing.assert_allclose(vertices['position'], new_vertices)
@requires_pyopengl()
def test_mesh_bounds():
# Create 3D visual
vertices, filled_indices, outline_indices = create_cube()
axis = scene.visuals.Mesh(vertices['position'], outline_indices,
color='black', mode='lines')
# Test bounds for all 3 axes
for i in range(3):
np.testing.assert_allclose(axis.bounds(i), (-1.0, 1.0))
# Create 2D visual using projection of cube
axis = scene.visuals.Mesh(vertices['position'][:, :2], outline_indices,
color='black', mode='lines')
# Test bounds for first 2 axes
for i in range(2):
np.testing.assert_allclose(axis.bounds(i), (-1.0, 1.0))
# Test bounds for 3rd axis
np.testing.assert_allclose(axis.bounds(2), (0.0, 0.0))
run_tests_if_main()
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