Control collison behavior

Select platform: Android iOS JavaScript

This page demonstrates how to set the collision behavior for a marker. Collision behavior controls how a marker will display if it collides (overlaps) with another marker.

To set collision behavior, set collisionBehavior to one of the following:

  • REQUIRED: Always display the marker regardless of collision
  • REQUIRED_AND_HIDES_OPTIONAL: Always display the marker regardless of collision, and hide any OPTIONAL_AND_HIDES_LOWER_PRIORITY markers or labels that would overlap with the marker.
  • OPTIONAL_AND_HIDES_LOWER_PRIORITY: Display the marker only if it does not overlap with other markers. If two markers of this type would overlap, the one with the higher zIndex is shown. If they have the same zIndex, the one with the lower vertical screen position is shown.

The following example shows setting collision behavior for a marker:

const marker = new Marker3DElement({  position: {lat, lng},  collisionBehavior: google.maps.CollisionBehavior.REQUIRED });