Map clustering - max zoom markers still clustered

Question

I\'m using android maps utils for clustering the markers on google maps api v2. It worked fine, but when I added 2000+ markers, on max zoom it is still clustered (markers st

Answer 1

To filter markers that have the same position, you could simply use a hashmasp, whose key is computed from the marker coordinates.

Something like:

Map uniqueMarkers = new HashMap();
for (Markers m : allMarkers) {
  // Compute a key to filter duplicates
  // You may need to account for small floating point precision errors by 
  // rounding those coordinates
  String key = m.getLatitude() + "|" + m.getLongitude();

  if (uniqueMarkers.get(key)!=null ) {
    // Skip if we have a marker with the same coordinates
    continue;
  }

  // Add marker and do something with it  
  uniqueMarkers.add(key, m);

  // ...
}