def test_resample_on_zoom():
# For images where the aspect ratio of pixels is fixed to be square, when
# the user zooms in, the limits of the axes are actually changed twice by
# matplotlib - a second time when the aspect ratio is enforced. So we need
# to make sure that we update the modest_image when this is the case.
session = simple_session()
np.random.seed(12345)
data = Data(x=np.random.random((2048, 2048)), label='image')
session.data_collection.append(data)
image = ImageViewer(session=session)
image.add_data(data)
image.show()
try:
device_ratio = image.axes.figure.canvas.devicePixelRatio()
except AttributeError:
device_ratio = 1.
image.axes.figure.canvas.key_press_event('o')
image.axes.figure.canvas.button_press_event(200 * device_ratio, 200 * device_ratio, 1)
image.axes.figure.canvas.motion_notify_event(400 * device_ratio, 210 * device_ratio)
image.axes.figure.canvas.button_release_event(400 * device_ratio, 210 * device_ratio, 1)
return image.axes.figure
class BaseTestSpectrumTool:
def setup_data(self):
self.data = Data(x=np.zeros((3, 3, 3)))
def setup_method(self, method):
self.setup_data()
session = simple_session()
session.data_collection.append(self.data)
self.image = ImageViewer(session)
self.image.add_data(self.data)
self.image.data = self.data
self.image.attribute = self.data.id['x']
self.mode = self.image.toolbar.tools['spectrum']
self.tool = self.mode._tool
self.tool.show = lambda *args: None
def teardown_method(self, method):
if self.image is not None:
self.image.close()
self.image = None
if self.tool is not None:
self.tool.close()
self.tool = None
def test_resample_on_zoom():
# For images where the aspect ratio of pixels is fixed to be square, when
# the user zooms in, the limits of the axes are actually changed twice by
# matplotlib - a second time when the aspect ratio is enforced. So we need
# to make sure that we update the modest_image when this is the case.
session = simple_session()
np.random.seed(12345)
data = Data(x=np.random.random((2048, 2048)), label='image')
session.data_collection.append(data)
image = ImageViewer(session=session)
image.add_data(data)
image.show()
try:
device_ratio = image.axes.figure.canvas.devicePixelRatio()
except AttributeError:
device_ratio = 1.
image.axes.figure.canvas.key_press_event('o')
image.axes.figure.canvas.button_press_event(200 * device_ratio,
200 * device_ratio, 1)
image.axes.figure.canvas.motion_notify_event(400 * device_ratio,
210 * device_ratio)
image.axes.figure.canvas.button_release_event(400 * device_ratio,
210 * device_ratio, 1)
return image.axes.figure
class BaseTestSpectrumTool:
def setup_data(self):
self.data = Data(x=np.zeros((3, 3, 3)))
def setup_method(self, method):
self.setup_data()
session = simple_session()
session.data_collection.append(self.data)
self.image = ImageViewer(session)
self.image.add_data(self.data)
self.image.data = self.data
self.image.attribute = self.data.id['x']
self.mode = self.image.toolbar.tools['spectrum']
self.tool = self.mode._tool
self.tool.show = lambda *args: None
def teardown_method(self, method):
if self.image is not None:
self.image.close()
self.image = None
if self.tool is not None:
self.tool.close()
self.tool = None