GoogleMapPlotter.heatmap(lats, lngs, threshold=None, radius=10, gradient=None, opacity=0.6, max_intensity=1, dissipating=True, precision=6, weights=None)

Plot a heatmap.

• Parameters

  • lats [float] – Latitudes.

  • lngs [float] – Longitudes.

• Optional Parameters

  • threshold – (Deprecated; use max_intensity instead.)

  • radius int – Radius of influence for each data point, in pixels. Defaults to 10.

  • gradient [(int, int, int, float)] – Color gradient of the heatmap, as a list of RGBA colors. The color order defines the gradient moving towards the center of a point.

  • opacity float – Opacity of the heatmap, ranging from 0 to 1. Defaults to 0.6.

  • max_intensity int – Maximum intensity of the heatmap. Defaults to 1.

  • dissipating bool – True to dissipate the heatmap on zooming, False to disable dissipation.

  • precision int – Number of digits after the decimal to round to for lat/lng values. Defaults to 6.

  • weights [float] – List of weights corresponding to each data point. Each point has a weight of 1 by default. Specifying a weight of N is equivalent to plotting the same point N times.

Usage:

import gmplot
apikey = '' # (your API key here)
gmap = gmplot.GoogleMapPlotter(37.766956, -122.448481, 14, apikey=apikey)

attractions = zip(*[
    (37.769901, -122.498331),
    (37.768645, -122.475328),
    (37.771478, -122.468677),
    (37.769867, -122.466102),
    (37.767187, -122.467496),
    (37.770104, -122.470436)
])

gmap.heatmap(
    *attractions,
    radius=40,
    weights=[5, 1, 1, 1, 3, 1],
    gradient=[(0, 0, 255, 0), (0, 255, 0, 0.9), (255, 0, 0, 1)]
)

gmap.draw('map.html')