Meshtastic App/com.geeksville.mesh.model.map.clustering/MarkerClusterer

MarkerClusterer

abstract class MarkerClusterer : Overlay

An overlay allowing to perform markers clustering. Usage: put your markers inside with add(Marker), and add the MarkerClusterer to the map overlays. Depending on the zoom level, markers will be displayed separately, or grouped as a single Marker. This abstract class provides the framework. Sub-classes have to implement the clustering algorithm, and the rendering of a cluster.

Author

M.Kergall

Inheritors

RadiusMarkerClusterer

Constructors

MarkerClusterer

constructor()

Functions

open fun add(marker: MarkerWithLabel)

Add the Marker.

buildClusterMarker

abstract fun buildClusterMarker(cluster: StaticCluster, mapView: MapView): MarkerWithLabel

Build the marker for a cluster.

abstract fun clusterer(mapView: MapView): ArrayList<StaticCluster>

clustering algorithm

open fun draw(canvas: Canvas, mapView: MapView, shadow: Boolean)

open fun getBounds(): BoundingBox

open fun getDescription(): String

open fun getItem(id: Int): MarkerWithLabel

open fun getItems(): ArrayList<MarkerWithLabel>

open fun getName(): String

open fun invalidate()

Force a rebuild of clusters at next draw, even without a zooming action.

open fun onDoubleTap(event: MotionEvent, mapView: MapView): Boolean

open fun onLongPress(event: MotionEvent, mapView: MapView): Boolean

onSingleTapConfirmed

open fun onSingleTapConfirmed(event: MotionEvent, mapView: MapView): Boolean

open fun onTouchEvent(event: MotionEvent, mapView: MapView): Boolean

abstract fun renderer(clusters: ArrayList<StaticCluster>, canvas: Canvas, mapView: MapView)

build clusters markers to be used at next draw

reversedClusters

open fun reversedClusters(): Iterable<StaticCluster>

open fun setDescription(description: String)

open fun setIcon(icon: Bitmap)

Set the cluster icon to be drawn when a cluster contains more than 1 marker.

open fun setName(name: String)