density of datapoints on a map

[Joris Billen]

I am looking for some advice:

I have lots of datapoints containing coordinates (longitude/latitude).

I would like to create a density map (showing the number of occurences in smaller areas; eg squares of lenght/width 1 ).

Geospark seems a good fit for this problem, but I have not found encountered  a function or an example that does exactly this.

It sounds like quite a common problem so I thought I 'd see if anyone has an idea.

Thanks for input!