public interface ILspLayerFactory
ILspLayers for an ILcdModel.
Often a layer factory only creates a single layer for a model. In this case you can use the
ALspSingleLayerFactory.| Modifier and Type | Method and Description |
|---|---|
boolean |
canCreateLayers(ILcdModel aModel)
Determines whether or not this layer factory is capable of creating layers
for the given model.
|
Collection<ILspLayer> |
createLayers(ILcdModel aModel)
Creates one or more
ILspLayer objects for the given model. |
boolean canCreateLayers(ILcdModel aModel)
false, the result of calling
createLayers(com.luciad.model.ILcdModel) with the same parameters
is undefined.aModel - the model for which layers should be createdtrue if this factory can create layers for aModel, or false otherwiseCollection<ILspLayer> createLayers(ILcdModel aModel)
ILspLayer objects for the given model.
Note that this method should not be called if canCreateLayers(com.luciad.model.ILcdModel)
returns false; the results are undefined in this case.
In most typical scenarios, this method will only create a single ILspLayer instances
for a given model. In such cases, the ALspSingleLayerFactory provides a convenient
abstract base class for layer factory implementations. An example of when it might be useful
to return multiple layers is a model that describes objects moving along a certain trajectory.
The layer factory might return one layer which represents the trajectories as polylines, and
another which represents the current positions of the objects as point icons.aModel - the model for which layers should be created