1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
# -*- coding: utf-8 -*-
import numpy as np
from vispy.scene.visuals import Image
from vispy.testing import (requires_application, TestingCanvas,
run_tests_if_main)
from vispy.testing.image_tester import assert_image_approved
@requires_application()
def test_image():
"""Test image visual"""
size = (100, 50)
with TestingCanvas(size=size, bgcolor='w') as c:
image = Image(cmap='grays', clim=[0, 1], parent=c.scene)
for three_d in (True, False):
shape = (size[1]-10, size[0]-10) + ((3,) if three_d else ())
np.random.seed(379823)
data = np.random.rand(*shape)
image.set_data(data)
assert_image_approved(c.render(), "visuals/image%s.png" %
("_rgb" if three_d else "_mono"))
run_tests_if_main()
|
