/// <summary>
/// Adds elevation.
/// </summary>
public void AddElevation(ElevationHandler.GetElevationDelegate getElevationFunc)
{
// add elevation to all vertices.
for (uint v = 0; v < this.VertexCount; v++)
{
var location = this.GetVertex(v);
var elevation = getElevationFunc(location.Latitude, location.Longitude);
this.UpdateVertex(v, location.Latitude, location.Longitude, elevation);
}
_shapes.AddElevation(getElevationFunc);
}