/// <summary>
/// Adds a particle with a user-defined index for later manipulation
/// </summary>
public void AddParticle(Object3D part, int index)
{
// Store for later if Display isn't created yet
if (Display == null)
{
initialParticles.Add(new Tuple <Object3D, int>(part, index));
}
else
{
Display.AddObject(part, index);
particleDictionary.Add(index, part);
}
}