JMap.Map.getRasterLayerTransparency
Returns the transparency for a given raster layer
The JMap layer id
the current transparency value
Error if layer not found or not a raster layer
// returns the transparency of raster layer id=4 JMap.Map.getRasterLayerTransparency(4) Copy
// returns the transparency of raster layer id=4 JMap.Map.getRasterLayerTransparency(4)
JMap.Map.getRasterLayerTransparency
Returns the transparency for a given raster layer