public IPart RemovePartByPoint(IPosition point)
{
int x, y;
x = ConvertRealValueToPartSequenceX(point.GetX());
y = ConvertRealValueToPartSequenceY(point.GetY());
IPosition queryPosition = queryTable.RemovePart(x, y);
if (queryPosition == null)
{
throw new Exception("分块链表里面没有待删除分块的指针!");
}
return((IPart)queryPosition);
}