def slider(aoi, pid, chipsize=512, extend=512, tms=['Google']):
workdir = config.get_value(['paths', 'temp'])
path = f'{workdir}/{aoi}/{pid}/'
bg_path = f'{path}/backgrounds/'
for t in tms:
if not os.path.isfile(f'{bg_path}{t.lower()}.tif'):
bg.by_pid(aoi, pid, chipsize, extend, t, True)
with open(f'{path}info.json', "r") as f:
json_data = json.load(f)
def overlay_parcel(img, geom):
patche = [
PolygonPatch(feature,
edgecolor="yellow",
facecolor="none",
linewidth=2) for feature in geom['geom']
]
return patche
with rasterio.open(f'{bg_path}{tms[0].lower()}.tif') as img:
img_epsg = img.crs.to_epsg()
geom = spatial_utils.transform_geometry(json_data, img_epsg)
patches = overlay_parcel(img, geom)
selection = SelectionSlider(options=tms,
value=tms[0],
disabled=False,
continuous_update=False,
orientation='horizontal',
readout=True)
output = Output()
fig, ax = plt.subplots(figsize=(10, 10))
with output:
with rasterio.open(f'{bg_path}{selection.value.lower()}.tif') as img:
for patch in patches:
ax.add_patch(copy(patch))
show(img, ax=ax)
plt.show()
def on_value_change(change):
with output:
output.clear_output()
fig, ax = plt.subplots(figsize=(10, 10))
with rasterio.open(
f'{bg_path}{selection.value.lower()}.tif') as im:
for patch in patches:
ax.add_patch(copy(patch))
show(im, ax=ax)
plt.show()
selection.observe(on_value_change, names='value')
return VBox([selection, output])
def test_index_trigger(self):
slider = SelectionSlider(options=['a', 'b', 'c'])
observations = []
def f(change):
observations.append(change.new)
slider.observe(f, 'index')
assert slider.index == 0
slider.options = [4, 5, 6]
assert slider.index == 0
assert slider.value == 4
assert slider.label == '4'
assert observations == [0]
def test_index_trigger(self):
slider = SelectionSlider(options=['a', 'b', 'c'])
observations = []
def f(change):
observations.append(change.new)
slider.observe(f, 'index')
assert slider.index == 0
slider.options = [4, 5, 6]
assert slider.index == 0
assert slider.value == 4
assert slider.label == '4'
assert observations == [0]