private bool ReadHistory(Rhino.DocObjects.ReplayHistoryData replay, ref Rhino.DocObjects.ObjRef objref, ref int segmentCount, ref int pointCount)
{
if (_historyVersion != replay.HistoryVersion)
return false;
objref = replay.GetRhinoObjRef(0);
if (null == objref)
return false;
if (!replay.TryGetInt(1, out segmentCount))
return false;
if (!replay.TryGetInt(2, out pointCount))
return false;
return true;
}