Google Maps Utils iOS

Usage Overview

• Marker clustering — handles the display of a large number of points
• Quadtree data structure - indexes 2D geometry points and performs 2D range queries

• Geometry libraries - KML and GeoJSON rendering

• Heatmaps - Heatmap rendering

Customize cluster and item markers

As of version 1.1.0 we have added new features for easy customization of markers. There is a new delegate GMUClusterRendererDelegate on GMUDefaultClusterRenderer which allows developers to customize properties of a marker before and after it is added to the map. Using this new delegate you can achieve something cool like this:

See CustomMarkerViewController for the implementation.

KML and GeoJSON rendering

As of version 2.0.0 we have added new features for rendering KML and GeoJSON inputs. This first version supports common geometries like Point, Polyline, Polygon, GroundOverlay. Please note that this version does not support interaction with the rendered geometries.

The following screenshot shows a demo of a KML file being rendered on the map. See KMLViewController for how to use the new APIs.

Heatmap rendering

As of version 2.1.0 we have added new features for rendering heatmaps. Heatmaps make it easy for viewers to understand the distribution and relative intensity of data points on a map. Rather than placing a marker at each location, heatmaps use color to represent the distribution of the data.

In the example below, red represents areas of high concentration of police stations in Victoria, Australia.

A map with a heatmap showing location of police stations

For more information, check out the detailed guide on the Google Developers site.