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# -*- coding: utf-8 -*-
"""
Tests for RectPolygonVisual
All images are of size (100,100) to keep a small file size
"""
from vispy.scene import visuals, transforms
from vispy.testing import (requires_application, TestingCanvas,
run_tests_if_main, raises)
from vispy.testing.image_tester import assert_image_approved
@requires_application()
def test_rectangle_draw():
"""Test drawing rectpolygons without transform using RectPolygonVisual"""
with TestingCanvas() as c:
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=40.,
width=80., color='red',
parent=c.scene)
assert_image_approved(c.render(), 'visuals/rectpolygon1.png')
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=40.,
width=80., radius=10., color='red',
parent=c.scene)
assert_image_approved(c.render(), 'visuals/rectpolygon2.png')
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=40.,
width=80., radius=10., color='red',
border_color=(0, 1, 1, 1),
parent=c.scene)
assert_image_approved(c.render(), 'visuals/rectpolygon3.png')
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=40.,
width=80., radius=10.,
border_color='white',
parent=c.scene)
assert_image_approved(c.render(), 'visuals/rectpolygon4.png',
min_corr=0.5)
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=60.,
width=80., radius=[25, 10, 0, 15],
color='red', border_color=(0, 1, 1, 1),
parent=c.scene)
assert_image_approved(c.render(), 'visuals/rectpolygon5.png')
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=60.,
width=80., radius=[25, 10, 0, 15],
color='red', border_color=(0, 1, 1, 1),
border_width=5, border_method='agg',
parent=c.scene)
assert_image_approved(c.render(), 'visuals/rectpolygon10.png')
@requires_application()
def test_rectpolygon_draw():
"""Test drawing transformed rectpolygons using RectPolygonVisual"""
with TestingCanvas() as c:
rectpolygon = visuals.Rectangle(center=(0., 0.), height=20.,
width=20., radius=10., color='blue',
parent=c.scene)
rectpolygon.transform = transforms.STTransform(scale=(2.0, 3.0),
translate=(50, 50))
assert_image_approved(c.render(), 'visuals/rectpolygon6.png')
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(0., 0.), height=20.,
width=20., radius=10.,
color='blue', border_color='red',
parent=c.scene)
rectpolygon.transform = transforms.STTransform(scale=(2.0, 3.0),
translate=(50, 50))
assert_image_approved(c.render(), 'visuals/rectpolygon7.png')
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(0., 0.), height=60.,
width=60., radius=10.,
border_color='red',
parent=c.scene)
rectpolygon.transform = transforms.STTransform(scale=(1.5, 0.5),
translate=(50, 50))
assert_image_approved(c.render(), 'visuals/rectpolygon8.png',
min_corr=0.5)
rectpolygon.parent = None
rectpolygon = visuals.Rectangle(center=(0., 0.), height=60.,
width=60., radius=[25, 10, 0, 15],
color='blue', border_color='red',
parent=c.scene)
rectpolygon.transform = transforms.STTransform(scale=(1.5, 0.5),
translate=(50, 50))
assert_image_approved(c.render(), 'visuals/rectpolygon9.png')
@requires_application()
def test_reactive_draw():
"""Test reactive RectPolygon attributes"""
with TestingCanvas() as c:
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=40.,
width=80., color='red',
parent=c.scene)
rectpolygon.radius = [20., 20, 0., 10.]
assert_image_approved(c.render(),
'visuals/reactive_rectpolygon1.png')
rectpolygon.center = (60, 60, 0)
assert_image_approved(c.render(),
'visuals/reactive_rectpolygon2.png')
rectpolygon.color = 'blue'
assert_image_approved(c.render(),
'visuals/reactive_rectpolygon3.png')
rectpolygon.border_color = 'yellow'
assert_image_approved(c.render(),
'visuals/reactive_rectpolygon4.png')
rectpolygon.radius = 10.
assert_image_approved(c.render(),
'visuals/reactive_rectpolygon5.png')
@requires_application()
def test_attributes():
"""Test if attribute checks are in place"""
with TestingCanvas() as c:
rectpolygon = visuals.Rectangle(center=(50, 50, 0), height=40.,
width=80., color='red',
parent=c.scene)
with raises(ValueError):
rectpolygon.height = 0
with raises(ValueError):
rectpolygon.width = 0
with raises(ValueError):
rectpolygon.radius = [10, 0, 5]
with raises(ValueError):
rectpolygon.radius = [10.]
with raises(ValueError):
rectpolygon.radius = 21.
run_tests_if_main()
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