Comments (2)
Some examples can be seen here: https://github.com/bokeh/datashader/blob/master/examples/census.ipynb
https://github.com/bokeh/datashader/blob/master/examples/opensky.ipynb
def create_image(x_range=x_range, y_range=y_range, w=plot_width, h=plot_height,
aggregator=ds.count(), categorical=None, black=False, cmap=None):
opts={}
if categorical and cmap:
opts['color_key'] = categorical_color_key(len(flightpaths[aggregator.column].unique()),cmap)
cvs = ds.Canvas(plot_width=w, plot_height=h, x_range=x_range, y_range=y_range)
agg = cvs.line(flightpaths, 'longitude', 'latitude', aggregator)
img = tf.shade(agg, cmap=inferno, **opts)
if black: img = tf.set_background(img, 'black')
return img
p = base_plot()
p.add_tile(ArcGIS)
InteractiveImage(p, create_image, categorical=True, aggregator=ds.count_cat('origin'), cmap='hsv_r')
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fixed in 296573d
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