bulia byak wrote: 
On Thu, May 29, 2008 at 5:29 PM, Diederik van Lierop <mail@...1689...> wrote:
  
Hi Max,

Have you thought about adding tools for easily extending and trimming
lines? I think most CAD applications have such tools. Now I think of it,
we could even simply use the "constrained snapping to objects" mechanism
for that.
    

Do we really need anything new? Ctrl+Alt+drag a node extends any
straight line segment along itself.

True. It's only a few days ago that I fixed the constrained snapping for such cases :-). But it only works for straight lines, doesn't it? Extending an arc for example isn't possible yet.

>From an user interaction point of view though:
1) it all depends on the snapping settings
2) the user must know or learn the effect of ctrl-alt
3) clicking to extend is easier IMHO than dragging
So there's quite a threshold for using this

Now I think of it, we could provide a preview of the extension/trim effect when hovering above the line. Wouldn't that be cool?

Diederik