The majority of formats require the same two steps for visualization on a Lightspeed view. To visualize WMM Magnetic North data:

  1. Decode the data into an ILcdModel using an ILcdModelDecoder.

  2. Create an ILspLayer for the ILcdModel and add it to the ILspView.

//First create the model
//Decode the model by passing the source to the model decoder
ILcdModelDecoder decoder =
    new TLcdWMMModelDecoder();
ILcdModel model = decoder.decode("Data/magneticnorth/WMM2020.COF");

//Create a layer for the model with default styling
ILspLayer layer = TLspShapeLayerBuilder.newBuilder()

//Add the layer to the Lightspeed view (an ILspView)

This results in a WMM Magnetic North layer with default styling. See Visualizing Vector Data for more information about visualizing and styling vector data.