[Qgis-user] Smoothing polygons

Christoph Jung jagodki.cj at gmail.com
Thu Aug 1 11:58:14 PDT 2019


What a shame, I totally ignored the grass tools ^^’

Thanks at all for your fast responses. I will try it out during the next days. 

Christoph 

> Am 01.08.2019 um 17:35 schrieb Carolina Boccato <cboccato at gmail.com>:
> 
> Hi Christoph,
> 
> Yes, there is this implementation!
> 
> In the processing toolbox at the Grass provider you will find v.generalize. This one has several algorithms, one of them is chaikins.
> 
> Sincerely, 
> Carolina 
> 
> 
>> On Thu, 1 Aug 2019 at 10:18, Stefan Giese <Stefan.Giese at wheregroup.com> wrote:
>> Hi Christoph,
>> 
>> under processing tools you will find 2 vector smooth tools, one is native QGIS, the other comes from SAGA (http://www.saga-gis.org/saga_tool_doc/2.2.2/shapes_lines_7.html). Just type "smooth" into the filter of the processing tools.
>> 
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>>> Am 01.08.2019 um 15:09 schrieb Christoph Jung:
>>> Hello everybody,
>>> 
>>> Does QGIS has a similar smoothing function like ArcGIS described in the following webpage?
>>> https://desktop.arcgis.com/de/arcmap/10.3/tools/cartography-toolbox/smooth-polygon.htm
>>> 
>>> I think I saw something like the result of the PAEK algorithm in QGIS, but I cannot remember when and where ^^
>>> 
>>> Does an implementation of the chaikins algorithm exists in any tool, that can be integrated into the toolbox?
>>> 
>>> I tried out the Smooth processing directly in QGIS and the plugin cartographic line generalisation. But both are too close orientated on the original geometry for me. I am searching for the possibility to create a more abstract copy of a polygon. Maybe somebody has some ideas about it. 
>>> 
>>> Sincerely,
>>> Christoph 
>>> 
>>> 
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