How to properly make use of the symbol Manager to allow icon clustering

[vidriloco]

Hello there,

I am having problems with making the SymbolManager to control the icon clustering amongst my map markers. I am initialising the SymbolManager as follows:

if(mapController?.symbolManager == null) {
  mapController?.symbolManager = SymbolManager(mapController!, iconAllowOverlap: true);
}

mapController?.symbolManager?.add(
  Symbol(name, symbolOptions, { "name": name })
);

However, Mapbox flutter in iOS (haven't tried in Android) keeps hiding the markers as I zoom out of the map.

Am I making a correct use of the SymbolManager?

[scotch-formitable]

I am having the same behaviour

[BEibye]

Hi, i was having the same issue, but it helped to also set the textAllowOverlap: true. But im still having issues clustering the icons, to ex. a circle showing the number of Symbols.

[felix-ht]

SymbolManager(iconAllowOverlap: true, iconIgnorePlacement: false) should do the trick.

Note that the symbol manger is created when the map has finished loading. So if you check for null you will never set a new SymbolManager. You can have as many SymbolManagers as you want btw - as along as you store them in a variable outside the controller.

If you want to use the ones from the controller you can just use:

controller.setIconAllowOverlap(your_setting)
controller.setTextAllowOverlap(your_setting) 
controller.setIconIgnorePlacement(your_setting) 
controller.setTextIgnorePlacement(your_setting) 

So there is no need to make a new one

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.