The map image for the cluster marker.

The anchor point for the marker image which specifies the position offset relative to the cluster’s position.

Creates a cluster marker image style using a map image with anchor.

The anchor is a way of specifying position offset relative to image’s dimensions on the screen. For example, (0, 0) places the top-left corner of the image at the cluster’s position. (1, 1) would place the bottom-right corner of the image at the cluster’s position.

Creates a marker cluster image representation with default anchor.