/// <summary>
/// Add child objects
/// into the collection of child objects.
/// </summary>
/// <param name="shape"></param>
public void Add(ShapeViewModelBase shape)
{
this.mElements.Add(shape);
}
/// <summary>
/// Add child objects
/// into the collection of child objects.
/// </summary>
/// <param name="shape"></param>
public void Add(ShapeViewModelBase shape)
{
this.mElements.Add(shape);
}