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William Chia-Wei Cheng
(bill.cheng@acm.org)
 

Tgif FAQ - Anchoring an Endpoint of a Line

 
I have used other software that allows me to anchor an endpoint of a line to an object so when the object moves, the line stretches and the endpoint follows the object. Can I do that in tgif?
There's only a poorman's version of it. It's useful sometimes, but if you count on it too much, it may not do exactly what you expect once in a while.

In the window of icons, the 2nd icon in the 2nd row switches you between Constrained Move Mode and Unconstrained Move Mode. By default, you are in the unconstrained mode. If you switch to constrained mode, if an endpoint of a polyline/spline falls inside of the object(s) you are moving or stretching, the endpoint moves along with it. You can play around with this and see when it works well and when it doesn't. One thing you will notice is that if both endpoints of a polyline falls inside the object(s) you are moving, the whole polyline will move with the object(s). So, if you are moving the object(s) with cursor keys, you may accidentally pick up a polyline or two!