// applies to TIN layers only
var stdDevNodeRendererDef = new TinNodeClassBreaksRendererDefinition();
stdDevNodeRendererDef.ClassificationMethod = ClassificationMethod.StandardDeviation;
stdDevNodeRendererDef.DeviationInterval = StandardDeviationInterval.OneHalf;
stdDevNodeRendererDef.ColorRamp = ColorFactory.Instance.GetColorRamp("Cyan to Purple");
if (tinLayer.CanCreateRenderer(stdDevNodeRendererDef))
{
CIMTinRenderer renderer = tinLayer.CreateRenderer(stdDevNodeRendererDef);
if (tinLayer.CanSetRenderer(renderer, SurfaceRendererTarget.Edges))
tinLayer.SetRenderer(renderer, SurfaceRendererTarget.Edges);
}