[Qgis-user] Autotrace working?

[Neumann, Andreas]

Hi all, 

Thank you all for your ideas. 

Meanwhile I found the problem: it doesn't seem to work with data
containing circular arcs (CurvePolygon, CompoundCurve, etc.). If I load
data without circular arcs it works fine. 

Saber/Martin: could you estimate how much effort it would be to also
support these geometry types? 

I could provide sample data with circular arcs (Geopackage, GML or
Postgis dump). 

I will open an issue. 

Andreas 

On 2016-06-22 12:26, Saber Razmjooei wrote:

> Hi Andreas, 
> 
> Would it be possible to provide some sample data? 
> 
> Cheers, 
> 
> Saber 
> 
> FROM: Qgis-user [mailto:qgis-user-bounces at lists.osgeo.org] ON BEHALF OF DelazJ
> SENT: 22 June 2016 11:21
> TO: Neumann, Andreas
> CC: QGIS User List
> SUBJECT: Re: [Qgis-user] Autotrace working? 
> 
> And is the snapping options active on all layers that are supposed to build the path? 
> 
> 2016-06-22 12:08 GMT+02:00 DelazJ <delazj at gmail.com>:
> 
> Hi, 
> 
> Andreas, is your next vertex reachable by the segments in the layer? I mean, there should not be a gap between your points. 
> 
> Harrissou 
> 
> 2016-06-22 11:58 GMT+02:00 Neumann, Andreas <a.neumann at carto.net>: 
> 
>> Hi, 
>> 
>> I can't get the Autotrace digitizing tool (the magnet) to work - neither in QGIS 2.14.3 nor in QGIS master. Is there a known issue? 
>> 
>> It seems to snap to vertices where I click, but nothing is calculated in between. 
>> 
>> It's a pity - since it is really useful. 
>> 
>> -------------------------- 
>> 
>> Here are my steps: 
>> 
>> 0. Settings snapping options - 10 pixels to vertex 
>> 
>> 1. Testing with Line or Polygon layer 
>> 
>> 2. Start editing 
>> 
>> 3. Pressing the red magnet 
>> 
>> 4. placing start node 
>> 
>> 5. placing in between or end nodes 
>> 
>> ..> no shortest path is calculated ;-( 
>> 
>> ------------------------- 
>> 
>> Do you have any hints what I may be doing wrong? 
>> 
>> Thanks,
>> Andreas
>> 
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