difference between offset travel and travel?

Hi, what's the difference between offset travel and travel?
My thought is that travel is on the network while offset travel is not on the network. Am I right?

I build a simple MM1 model without a network. I use a TE to transport item. The default code is as follows:

treenode ts = createemptytasksequence(centerobject(current,1),0, 0);
inserttask(ts,TASKTYPE_TRAVEL,current,NULL);
inserttask(ts,TASKTYPE_FRLOAD,item,current,port);
inserttask(ts,TASKTYPE_BREAK,NULL,NULL);
inserttask(ts,TASKTYPE_TRAVEL,outobject(current,po rt),NULL);
inserttask(ts,TASKTYPE_FRUNLOAD,item,outobject(cur rent,port),opipno(current,port));
dispatchtasksequence(ts);

It's good. But if I delete TRAVEL tasks from the code. It still works, I mean the TE still travels.

I wonder if in the first case, the travel is travel while in the second case, the travel is offset travel?

thanks

That's correct. In the second case the travelling is offset travel, which is part of the FRLOAD task.

Martijn