/**
* Adds a graph that should be used to build geometry within
* the specified visibility range.
*
* @param min_range
* Minimum visibility range - get any closer and the geometry
* disappeares.
* @param max_range
* Maximum visibility range - get any further and the geometry
* disappears.
* @param graph
* Compile geometry using this graph for the given range.
*/
public void addFilterGraph(float min_range, float max_range, FilterGraph graph)
{
FilterGraphRange slice;
slice.min_range = min_range;
slice.max_range = max_range;
slice.graph = graph;
graph_ranges.Add(slice);
}
public Node compile(FeatureLayer layer, FeatureCursor cursor, FilterGraph graph)
{
osg.ref_ptr <FilterEnv> env = getSession().createFilterEnv();
env.setExtent(getAreaOfInterest(layer));
env.setInputSRS(layer.getSRS());
env.setTerrainNode(terrain.get());
env.setTerrainSRS(terrain_srs.get());
env.setTerrainReadCallback(read_cb.get());
osg.Group * output;
FilterGraphResult r = graph.computeNodes(cursor, env.get(), output);
return(r.isOK() ? output : NULL);
}
/**
* Constructs a new compiler.
*
* @param graph
* Single filter graph to compile.
*/
public SimpleLayerCompiler(FilterGraph graph)
{
addFilterGraph(FLT_MIN, FLT_MAX, graph);
}
