def __init__(self):
super(Window, self).__init__()
box = QtGui.QBoxLayout(QtGui.QBoxLayout.LeftToRight, self)
self.resize(500, 200)
self.setLayout(box)
self.canvas_0 = SceneCanvas(bgcolor='w')
self.vb_0 = ViewBox(parent=self.canvas_0.scene, bgcolor='r')
self.vb_0.camera.rect = -1, -1, 2, 2
self.canvas_0.events.initialize.connect(self.on_init)
self.canvas_0.events.resize.connect(
partial(on_resize, self.canvas_0, self.vb_0))
box.addWidget(self.canvas_0.native)
# pass the context from the first canvas to the second
self.canvas_1 = SceneCanvas(bgcolor='w', shared=self.canvas_0.context)
self.vb_1 = ViewBox(parent=self.canvas_1.scene, bgcolor='b')
self.vb_1.camera.rect = -1, -1, 2, 2
self.canvas_1.events.resize.connect(
partial(on_resize, self.canvas_1, self.vb_1))
box.addWidget(self.canvas_1.native)
self.tick_count = 0
self.timer = Timer(interval=1., connect=self.on_timer, start=True)
self.setWindowTitle('Shared contexts')
self.show()
def test_panzoom_link():
vbs = [ViewBox(camera='panzoom') for _ in range(4)]
cams = [vb.camera for vb in vbs]
for cam in cams:
cam.rect = (0, 0, 100, 100)
cams[0].link(cams[1])
cams[0].link(cams[2], axis='x')
cams[0].link(cams[3], axis='y')
cams[1].rect = (-20, -20, 130, 130)
assert cams[0].rect.pos == (-20, -20) and cams[0].rect.size == (130, 130)
assert cams[2].rect.pos == (-20, 0) and cams[2].rect.size == (130, 100)
assert cams[3].rect.pos == (0, -20) and cams[3].rect.size == (100, 130)
def test_turntable_camera_link():
vbs = [ViewBox(camera='turntable') for _ in range(3)]
cams = [vb.camera for vb in vbs]
for cam in cams:
cam.elevation = 45.0
cam.azimuth = 120.0
cam.scale_factor = 4.0
cams[0].link(cams[1])
cams[0].link(cams[2], props=['azimuth', 'elevation'])
cams[1].elevation = 30.0
cams[1].azimuth = 90.0
cams[1].scale_factor = 2.0
assert cams[0].elevation == 30.0
assert cams[0].azimuth == 90.0
assert cams[0].scale_factor == 2.0
assert cams[2].elevation == 30.0
assert cams[2].azimuth == 90.0
assert cams[2].scale_factor == 4.0