public void linkGrids()
{
MyLog.Default.WriteLine("linking...");
//var a = parentPort.cube;
//if (a == null)
// MyLog.Default.WriteLine("parent is null");
//else
// MyLog.Default.WriteLine("parent is not null");
MyLog.Default.WriteLine("cable: linking " + headPort.cube.DisplayNameText + tailPort.cube.DisplayNameText);
//grid.CreateGridGroupLink(GridLinkTypeEnum, id, grid, otherGrid)
MyCubeGrid.CreateGridGroupLink(GridLinkTypeEnum.Logical, cableID,
headPort.cube.CubeGrid as MyCubeGrid,
tailPort.cube.CubeGrid as MyCubeGrid);
}