protected ObjectNode CreateNode(Vector3 pos, int numControls)
{
GameObject g = new GameObject();
g.name = "Node";
ObjectNode node = g.AddComponent <ObjectNode>();
node.SetPosition(pos);
node.CreateHandles(numControls);
node.SetTerrain(this);
// Make the node be a child of the terrain object
g.transform.parent = this.transform;
return(node);
}