[Qgis-developer] more advanced editing tools

Leyan ouyang.leyan.ml at hotmail.com
Thu Nov 29 06:50:45 PST 2012

Regarding the workflow you described at the end, do you know about 
"avoiding intersection" ? 
This is much easier to use than snapping points, and it works across 
different layers.

Regarding the more advanced digitization features, I think the best 
would be to improve CAD tools instead of creating yet another plugin 
that people will not find. I agree that these features are important. 
One I would like is to see the distance and angle directly during 
digitizing, while you enter a line.



On 11/29/2012 08:35 PM, Bernhard Ströbl wrote:
> Dear list,
> during a course I realized that my institution needs some more editing
> tools for advanced editing tasks e.g.
> - prolong a line
> - cut polygon with feature (line or polygon) from another layer
> - save all layers being in editing mode in one go
> - some more
> A little background: when digitizing data we are not starting from
> scratch but are digitzing on existing data in many different layers
> (parcels, restricted areas ...). A new polygon normally needs to fit
> into these existing boundaries. Trying to digitize along existing
> boundaries of several layers and snapping to them is cumbersome and
> you are very likely missing snapping nodes (even when using trace
> digitize plugin).
> Is any of you aware of similar functions in a plugin (I know
> cadTools)? Is anyone interested in joining me to create such tools as
> a Python plugin? Which functions would you like to have?
> regards
> Bernhard

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