def test_vectorData_datatype1():
"""
test data of coord-like shape
:return:
"""
with app_context():
# create the viewer and window
viewer = ViewerApp()
N = 10
pos = np.zeros(shape=(N, 4), dtype=np.float32)
try:
viewer.add_vectors(pos)
except Exception as ex:
print("exception thrown when creating coord-like vector layer: "+str(ex))
def test_vectorData_image_assignment(self):
"""
test replacing vector data after layer construction
:return:
"""
with app_context():
# create the viewer and window
viewer = ViewerApp()
N = 10
pos = np.zeros(shape=(N, 4), dtype=np.float32)
pos2 = np.zeros(shape=(N, N, 2), dtype=np.float32)
try:
layer = viewer.add_vectors(pos)
layer.vectors = pos2
except Exception as ex:
print("exception thrown when : "+str(ex))
def test_vectorData_datatype_notimpl2(self):
"""
test data of vispy-coordinate shape (not allowed)
:return:
"""
with app_context():
# create the viewer and window
viewer = ViewerApp()
N = 10
pos = np.zeros(shape=(N, 2), dtype=np.float32)
try:
viewer.add_vectors(pos)
except InvalidDataFormatError:
print('invalid data format')
except Exception as ex:
print("exception thrown when creating not implemented vector layer: "+str(ex))
def test_vectorData_datatype_notimpl():
"""
test data of improper shape
:return:
"""
with app_context():
# create the viewer and window
viewer = ViewerApp()
N = 10
M = 5
pos = np.zeros(shape=(N, M, 4), dtype=np.float32)
try:
viewer.add_vectors(pos)
except InvalidDataFormatError:
print('invalid data format')
except Exception as ex:
print("exception thrown when creating not implemented vector layer: "+str(ex))
"""
Display one 4-D image layer using the add_image API
"""
import dask.array as da
import zarr
import numpy as np
from skimage import data
from napari import ViewerApp
from napari.util import app_context
with app_context():
data = zarr.zeros((102_000, 200, 210), chunks=(100, 200, 210))
data[53_000:53_100, 100:110, 110:120] = 1
array = da.from_zarr(data)
print(array.shape)
viewer = ViewerApp(array, clim_range=[0, 1], multichannel=False)
