[Qgis-developer] Autotrace stopped working?

[DelazJ]

Hi,
Paolo, afaics, you need from time to time to click to confirm the shape of
the polygon. The autotrace shows you, according to your mouse position
(near a snappable node) what your poygon will look like, following the
shortest path; it doesn't really draw it unless you click.
For what i've experienced, the tracing helps you save a lot of common nodes
click (Thank you, Martin) but you still need to click from time to time to
make human choice.

Lene, the direction is where your mouse goes. If the autotrace doesn't
really goes where you want (because it's not obviously the shortest one for
it) then you need to create an intermediate node where direction should
change.
Maybe, mixing it with the Advanced digitizing panel can help you force
direction however. Never tried.

Regards,
Harrissou

2016-05-21 7:54 GMT+02:00 Paolo Cavallini <cavallini at faunalia.it>:

> Hi Martin,
> thanks for your reply.
>
> Il 20/05/2016 20:22, Martin Dobias ha scritto:
>
> > Both autotrace plugin and tracing functionality since 2.14 should work
> > fine... not sure which one you are referring to - and what is the
> > snapping configuration you have used.
>
> This is what I did:
> * load a polygon layer
> * set the snapping options to 10 pixel, vertex only
> * start editing
> * click on Enable tracing
> * click on Add feature
> * first click outside current polygons, second close to it (I see the
> pink cross indicating snap)
> * I move close to the border, but no polygon is traced.
> All the best.
> --
> Paolo Cavallini - www.faunalia.eu
> QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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