Composite Layers

Combines two or more layers into a single layer. This can improve render and caching performance, and also allows you to group layers together for operations like opacity and visibility.

CompositeImage, CompositeElevation

CLASS: CompositeImageLayer (inherits from ImageLayer))

CLASS: CompositeElevationLayer (inherits from ElevationLayer)

Property Description Type Default
layers Collection of layers to composite. [layers]


Composites three image layers into a single layer:

<CompositeImage name="Combined imagery">
        <TMSImage name="ReadyMap 15m Imagery">

        <GDALImage name="Boston inset">

        <GDALImage name="New York inset">

Note: you can only composite layers of the same base type (e.g. image layers with other image layers.)