/// <summary>
/// Remove the layer at the given index from the list of layers managed by this
/// camera.
/// </summary>
/// <param name="index">The index of the layer to remove.</param>
/// <returns>The removed layer.</returns>
public virtual PLayer RemoveLayer(int index)
{
PLayer layer = layers[index];
layers.RemoveAt(index);
layer.RemoveCamera(this);
InvalidatePaint();
return(layer);
}
