class NYCTaxiExplorer(hv.streams.Stream):
alpha = param.Magnitude(default=0.75,
doc="Alpha value for the map opacity")
colormap = param.ObjectSelector(
default=cm["fire"], objects=[cm[k] for k in cm.keys() if not '_' in k])
hour = param.Range(default=(0, 24), bounds=(0, 24))
location = param.ObjectSelector(default='dropoff',
objects=['dropoff', 'pickup'])
def make_view(self, x_range, y_range, **kwargs):
map_tiles = tiles(style=dict(alpha=self.alpha), plot=tile_options)
points = hv.Points(df,
kdims=[self.location + '_x', self.location + '_y'],
vdims=['dropoff_hour'])
if self.hour != (0, 24): points = points.select(dropoff_hour=self.hour)
taxi_trips = datashade(points,
x_sampling=1,
y_sampling=1,
cmap=self.colormap,
dynamic=False,
x_range=x_range,
y_range=y_range,
width=1000,
height=600)
return map_tiles * taxi_trips
class NYCTaxiExplorer(hv.streams.Stream):
alpha = param.Magnitude(default=0.75,
doc="Alpha value for the map opacity")
colormap = param.ObjectSelector(
default=cm["fire"], objects=[cm[k] for k in cm.keys() if not '_' in k])
plot = param.ObjectSelector(default="pickup",
objects=["pickup", "dropoff"])
passengers = param.Range(default=passenger_counts, bounds=passenger_counts)
output = parambokeh.view.Plot()
def make_view(self, x_range, y_range, alpha, colormap, plot, passengers,
**kwargs):
map_tiles = tiles(style=dict(alpha=alpha), plot=tile_options)
points = hv.Points(df,
kdims=[plot + '_x', plot + '_y'],
vdims=['passenger_count'])
if passengers != passenger_counts:
points = points.select(passenger_count=passengers)
taxi_trips = datashade(points,
x_sampling=1,
y_sampling=1,
cmap=colormap,
dynamic=False,
x_range=x_range,
y_range=y_range)
return map_tiles * taxi_trips
class NYCTaxiExplorer(hv.streams.Stream):
alpha = param.Magnitude(default=0.75,
doc="Alpha value for the map opacity")
colormap = param.ObjectSelector(
default=cm["fire"], objects=[cm[k] for k in cm.keys() if not '_' in k])
hour = param.Integer(default=None,
bounds=(0, 23),
doc="All hours by default; drag to select one hour")
passengers = param.Range(default=(0, max_pass), bounds=(0, max_pass))
location = param.ObjectSelector(default='dropoff',
objects=['dropoff', 'pickup'])
def make_view(self, x_range, y_range, **kwargs):
map_tiles = tiles.opts(style=dict(alpha=self.alpha), plot=options)
points = hv.Points(df,
kdims=[self.location + '_x', self.location + '_y'],
vdims=[self.location + '_hour'])
selection = {
self.location + "_hour": self.hour if self.hour else (0, 24),
"passenger_count": self.passengers
}
taxi_trips = datashade(points.select(**selection),
x_sampling=1,
y_sampling=1,
cmap=self.colormap,
dynamic=False,
x_range=x_range,
y_range=y_range,
width=1000,
height=600)
return map_tiles * taxi_trips
class ColormapPicker(hv.streams.Stream):
colormap = param.ObjectSelector(default=cm["fire"],
objects=[cm[k] for k in cm.keys() if not '_' in k])
class ColormapPicker(hv.streams.Stream): # set up the colormap picker
colormap = param.ObjectSelector(
default=cm["kbc"], objects=[cm[k] for k in cm.keys() if not '_' in k])
class ColormapPicker(hv.streams.Stream):
colormap = param.ObjectSelector(
default=cm["bgy"], # sets the default colormap to "blues"
objects=[cm[k] for k in cm.keys() if not '_' in k])