ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / VoxelLayer Class / SetDiffuseLighting Method
Example

In This Topic
    SetDiffuseLighting Method
    In This Topic
    Sets the Diffuse lighting value. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public void SetDiffuseLighting( 
       double value
    )
    Public Sub SetDiffuseLighting( _
       ByVal value As Double _
    ) 

    Parameters

    value
    Exceptions
    ExceptionDescription
    This method or property must be called within the lambda passed to QueuedTask.Run
    Example
    Lighting Properties, Offset, Vertical Exaggeration
    //var voxelLayer = ... ;
    //Must be on the QueuedTask.Run()
    
    //Offset
    var offset = voxelLayer.CartographicOffset;
    //apply an offset
    voxelLayer.SetCartographicOffset(offset + 100.0);
    
    //VerticalExaggeration
    var exaggeration = voxelLayer.VerticalExaggeration;
    //apply an exaggeration
    voxelLayer.SetVerticalExaggeration(exaggeration + 100.0);
                
    //Change the exaggeration mode to "ScaleZ" - corresponds to 'Z-coordinates' 
    //on the Layer properties UI - must use the CIM
    var def = voxelLayer.GetDefinition() as CIMVoxelLayer;
    def.Layer3DProperties.ExaggerationMode = ExaggerationMode.ScaleZ;
    //can set vertical exaggeration via the CIM also
    //def.Layer3DProperties.VerticalExaggeration = exaggeration + 100.0;
    
    //apply the change
    voxelLayer.SetDefinition(def);
    
    //Diffuse Lighting
    if (!voxelLayer.IsDiffuseLightingEnabled)
        voxelLayer.SetDiffuseLightingEnabled(true);
    var diffuse = voxelLayer.DiffuseLighting;
    //set Diffuse lighting to a value between 0 and 1
    voxelLayer.SetDiffuseLighting(0.5); //50%
    
    //Specular Lighting
    if (!voxelLayer.IsSpecularLightingEnabled)
        voxelLayer.SetSpecularLightingEnabled(true);
    var specular = voxelLayer.SpecularLighting;
    //set Diffuse lighting to a value between 0 and 1
    voxelLayer.SetSpecularLighting(0.5); //50%
    
    Requirements

    Target Platforms: Windows 11, Windows 10, Windows 8.1

    See Also