android - Algorithm to space/filter Google Maps Markers for readability? -

in android app plot airports on google maps. when zoomed out far, density gets high. i'm familiar marker clustering libraries, rather have solution distribution of airports shown, leaving out overlapping ones, , when zoom in more airports filled in needed. tips on this.

clustering need.

you need to:

• position cluster @ same latlng 1 of markers in cluster
• use same icon cluster regular markers

taking example android maps extensions, i'm familiar with, have modify code in clustermarker.java from

private latlng calculateclusterposition() {     latlngbounds.builder builder = latlngbounds.builder();     (delegatingmarker m : markers) {         builder.include(m.getposition());     }     return builder.build().getcenter(); } 

to like

private latlng calculateclusterposition() {     return markers.get(0).getposition(); } 

or bit more sophisticated algorithm, calculates center , iterates on markers again find nearest marker , use position.