Expedition PCB中的Hug Trace有何用？

This command is only available from the F6 function key while in Route mode / select and provides you with the ability to select an un-routed net and have it hug an existing routed trace in the design. The net to be hugged can be an entire net routed between two pins or a portion of a routed net. The un-routed net will route adjacent using the Trace to Trace clearance and typical trace widths defined in Net Classes and Clearances to the routed net, including curves, bends, angles and other trace anomalies.

Hug trace will only operate on continuous trace segments, which have no junctions, vias or pins within the segments being hugged. The following criteria prevents traces from routing using the hug trace command:

- Traces which include vias in the selected span.- Traces which include T-junctions in the selected span.- Trace segments that include pins, testpoints, or any other objects making connections within the selected span.

Hug trace will automatically push and shove vias/traces of nets which are in the way of the trace being hugged. However hug trace will not alter the trace that is being hugged.If a segment is selected with this criteria, an error message appears in the far right message field. Also, if Plow or MultiPlow is selected, the F6 action key reverts to the Undo command.

Hug trace portions

In the event a portion of a trace is selected to hug based on a selection of a start or end point on the trace itself, a netline will appear from the hug trace endpoints to the un-routed pin locations. This will only occur only if the "Netlines from Traces" checkbox is selected within the Display Control dialog. If this option is not checked, the trace will hang in space with no netline. When trace hangers are placed by Hug Trace, these traces will be automatically semi-fixed to ensure that when they are connected using plow they are not glossed, causing the hugged trace to no longer hug the target trace.

我无法用F6 function key启动这个功能，用菜单或工具条按钮启动这个命令只是画出了一条半固定的线，而且和existing routed trace 是同一网络，那用它有何用处?

没人知道吗?

我也想知道，求助各位大侠了，谢谢

这位兄弟水性很好啊，这个猛子扎的可真够深的啊，不知有没有到达马里亚纳海沟的沟底。把我2004年的帖子都给顶出水面了，不服不行啊！

Hug trace要先选择你要连接的网络，然后再执行Hug trace命令，这样Hug trace就会附到你最初选择的那个网络上。

HUGtrace就是环抱走线，遇到不懂的命令可以看一下帮助 ，里面说的很清楚

就是说靠近你选择的走线进行走线