def test_box_edit_callback_initialized_js(self):
boxes = Polygons([Box(0, 0, 1)])
BoxEdit(source=boxes)
plot = bokeh_renderer.get_plot(boxes)
cb = plot.callbacks[0].callbacks[0]
self.assertEqual(plot.handles['rect_source'].js_property_callbacks,
{'change:data': [cb], 'patching': [cb]})
def __init__(self, poly_data=[], **params):
super(SelectRegionPanel, self).__init__(**params)
self.boxes = gv.Polygons(poly_data).options(
fill_alpha=0.5, color='grey', line_color='white',
line_width=2, width=self.width, height=self.height
)
if not self.boxes:
self.boxes = self.boxes.options(global_extent=True)
self.box_stream = BoxEdit(source=self.boxes, num_objects=1)
def test_box_edit_callback(self):
boxes = Polygons([Box(0, 0, 1)])
box_edit = BoxEdit(source=boxes)
plot = bokeh_server_renderer.get_plot(boxes)
self.assertIsInstance(plot.callbacks[0], BoxEditCallback)
callback = plot.callbacks[0]
source = plot.handles['rect_source']
self.assertEqual(source.data, {'x': [0], 'y': [0], 'width': [1], 'height': [1]})
data = {'x': [0, 1], 'y': [0, 1], 'width': [0.5, 2], 'height': [2, 0.5]}
callback.on_msg({'data': data})
element = Polygons([Box(0, 0, (0.5, 2)), Box(1, 1, (2, 0.5))])
self.assertEqual(box_edit.element, element)
def test_box_edit_callback(self):
boxes = Rectangles([(-0.5, -0.5, 0.5, 0.5)])
box_edit = BoxEdit(source=boxes)
plot = bokeh_server_renderer.get_plot(boxes)
self.assertIsInstance(plot.callbacks[0], BoxEditCallback)
callback = plot.callbacks[0]
source = plot.handles['cds']
self.assertEqual(source.data['x'], [0])
self.assertEqual(source.data['y'], [0])
self.assertEqual(source.data['width'], [1])
self.assertEqual(source.data['height'], [1])
data = {'x': [0, 1], 'y': [0, 1], 'width': [0.5, 2], 'height': [2, 0.5]}
callback.on_msg({'data': data})
element = Rectangles([(-0.25, -1, 0.25, 1), (0, 0.75, 2, 1.25)])
self.assertEqual(box_edit.element, element)
def bbox_selector(metadata_csv=None,
metadata_csv_lon_column='Longitude',
metadata_csv_lat_column='Latitude',
bounds=(-124.5, 40, -108, 50),
basemap_url=None):
'''
Draw bounding box (hold shift) on basemap and return vertices.
Select bounding box to delete.
'''
OpenTopoMap = 'https://tile.opentopomap.org/{Z}/{X}/{Y}.png'
OpenStreetMap = 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png'
GoogleHybrid = 'https://mt1.google.com/vt/lyrs=y&x={X}&y={Y}&z={Z}'
GoogleSatellite = 'https://mt1.google.com/vt/lyrs=s&x={X}&y={Y}&z={Z}'
GoogleRoad = 'https://mt1.google.com/vt/lyrs=m&x={X}&y={Y}&z={Z}'
GoogleTerrain = 'http://mt0.google.com/vt/lyrs=p&hl=en&x={X}&y={Y}&z={Z}'
GoogleTerrainOnly = 'http://mt0.google.com/vt/lyrs=t&hl=en&x={X}&y={Y}&z={Z}'
ESRIImagery = 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{Z}/{Y}/{X}.jpg'
Wikimedia = 'https://maps.wikimedia.org/osm-intl/{Z}/{X}/{Y}@2x.png'
print('Toggle Box Edit Tool and hold shift to draw bounding box.')
if not basemap_url:
url = GoogleSatellite
basemap = gv.WMTS(url, extents=bounds).opts(aspect=1, frame_height=500)
if metadata_csv:
df = pd.read_csv(metadata_csv)
df = df.loc[(df[metadata_csv_lat_column] < bounds[3])
& (df[metadata_csv_lat_column] > bounds[1]) &
(df[metadata_csv_lon_column] > bounds[0]) &
(df[metadata_csv_lon_column] < bounds[2])].reset_index(
drop=True)
coords = list(
zip(df[metadata_csv_lon_column].values,
df[metadata_csv_lat_column].values))
points = gv.Points(coords).opts(size=10, frame_height=500)
else:
points = gv.Points({}).opts(size=10, frame_height=500)
box_poly = gv.Polygons([{}]).opts(
opts.Polygons(fill_alpha=0,
line_color='yellow',
line_width=3,
selection_fill_color='red'))
box_stream = BoxEdit(source=box_poly)
return basemap * points * box_poly, box_stream
def test_box_edit_callback_initialized_server(self):
boxes = Polygons([Box(0, 0, 1)])
BoxEdit(source=boxes)
plot = bokeh_server_renderer.get_plot(boxes)
self.assertEqual(plot.handles['rect_source']._callbacks,
{'data': [plot.callbacks[0].on_change]})
# Subject to Bokeh Bug: Tool Bar disappears https://github.com/ioam/holoviews/issues/2784
import quest
import geoviews as gv
import holoviews as hv
from holoviews.streams import (Params, PolyEdit, BoxEdit, PointDraw)
# from holoviews.operation.datashader import regrid
import panel as pp
# import param
hv.extension('bokeh')
# pp.extension()
tiles = gv.tile_sources.StamenTerrain().options(width=950, height=600)
tiles.extents = (-125, 25, -65, 50)
box_poly = gv.Polygons([]).options(fill_alpha=.2)
box_stream = BoxEdit(source=box_poly, num_objects=1, name="boxedit")
points = gv.Points([])
point_stream = PointDraw(source=points)
elevation_service = quest.util.ServiceSelector(
parameter='elevation', default='svc://usgs-ned:1-arc-second')
# Explicitly create a panel widget
btn_download = pp.widgets.Button(name='Download & Fill', button_type='danger')
btn_download_stream = Params(btn_download, ['clicks'],
rename={'clicks': 'download_clicks'})
btn_run = pp.widgets.Button(name='Extract', button_type='danger')
btn_run_stream = Params(btn_run, ['clicks'], rename={'clicks': 'run_clicks'})
btn_delin = pp.widgets.Button(name='Delinate', button_type='danger')
def test_box_edit_callback(self):
boxes = Polygons([Box(0, 0, 1)])
box_edit = BoxEdit(source=boxes)
plot = bokeh_renderer.get_plot(boxes)
self.assertIsInstance(plot.callbacks[0], BoxEditCallback)
self.assertEqual(box_edit.element, boxes)