articles tagged with 'programming'

SimpleMarker Update

My SimpleMarker class just got an update. As someone pointed out that the MarkerManager from the Google Maps Utility Library needs a setVisible() method from its markers, I have added this particular method. Now it is compatible to the Manager and can be used in situations where you need lightweight markers and clustering or other marker management.

Update: I've uploaded a second update. From now on the bounds which are calculated with SimpleMarker.getBounds() will be cached in an array. This improves the performance for my SimpleCluster class to which an article will follow in the next days.

A lightweight marker for Google Maps: the SimpleMarker class

Lately I have been working a lot with the Google Maps API V3. In many cases you want to display a high count of markers, but the default google.maps.Marker acts horribly slow when shown in large numbers. Because of this, the concept of "Lightweight Markers" has been invented. Basically you implement an abstract class for an overlay that keeps the marker-object in the DOM hierarchy as simple as possible. There are various implementations of lightweight markers, some of them have more and some of them less features.

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