This layer type is used to show the frequency of point-based data.

In addition to Common layer settings, the HeatMap layer type has the following settings:

• Radius:
  The default size of the area (in pixels) influenced by one record. Can be later modified by the user as a Layer Variable.
• Min/Max radius:
  The minimum/maximum size to which the user can change the radius layer variable.
• Color 1/2/3:
  Colors of the heatmap, from the most frequent color (1) to the least (3).
• Legend Label:
  Text shown in the center of the layer’s gradient example. Especially useful when multiple gradients are present to differentiate them.
• Min/Max Legend Label:
  Texts shown on the minimum/maximum of the layer’s gradient example. If not supplied, defaults to “Min” / “Max.”

HeatMap layers also have additional frontend-only settings that can be changed as Layer Variables. In addition to the Radius variable mentioned above, the user can also change these two settings under the “Advanced” layer settings:

• Scale:
  The scale of the heatmap – increasing this number above the default 1 will make bigger values more prominent while decreasing it below 1 will do the opposite.
• Max value:
  Max value in the heatmap, values above this threshold will be ignored if it is set.