Have you had a look at
Basically you need to have a a puntal data source with some attribute data. The value for the heat layer needs to be in the range [0...1]. You can achieve that by
- passing a scale factor (
- a delegate function (
You can assign a color blend to render the heat map (
You can define a
value for the heat layer dots.
You can assign a base layer that is rendered right before the heat layer.
What else do you want to know?