Visualizing Geological heatmap: why plot is not showing?

Question

Here is a sample of a dataset i got, where 'lat', and 'lon' stand for 'latitude' and 'longitude', respectively:

'lat'	'lon'
25.09740093	55.1368825
25.11258035	55.2587537
25.0777321	55.13890908
25.1337145	55.192437
25.193982	55.2769135
25.0372255	55.216955
25.068809	55.326105

I tried to visualize it on map with plotly as such:

import plotly.graph_objects as go
fig = go.Figure(go.Densitymapbox(lat=df['lat'], lon=df['lon']))
fig.show()

And got this output:

What's wrong?

Answer 1

Z-value for heatmap is required as well as latitude and longitude. A reference can be found here for your reference. I specified the z-value directly in the graph code, but originally, there should be a column of z-values in the data frame, so in that case, specify the column name.

import plotly.graph_objects as go
import numpy as np

fig = go.Figure(go.Densitymapbox(lat=df.lat,
                                 lon=df.lon,
                                 z=np.random.randint(10,100,7),
                                 radius=10))

fig.update_layout(
    mapbox_style="stamen-terrain",
    mapbox_center_lon=55.20,
    mapbox_center_lat=25.11,
    mapbox_zoom=9
)
fig.update_layout(margin={"r":0,"t":0,"l":0,"b":0})
fig.show()