Umm, I want to test an experiment.
I see that qgis draws the geometries (LineStrings or Polygons) in independent
calls (painter-drawPolyline or painter-drawPolygon() calls). I have
experience using GDI++ as renderer and it is very faster joining n-geometries
in one geometry-path and then flush
a geometry to treat your information.
Alvaro
De: Andreas Neumann a.neum...@carto.net
Para: qgis-developer@lists.osgeo.org
Enviado: Martes 22 de octubre de 2013 14:03
Asunto: Re: [Qgis-developer] vector rendering improvement patch
Hi,
Thank you for your work!
Yes
Enviado: Martes 22 de octubre de 2013 14:03
Asunto: Re: [Qgis-developer] vector rendering improvement patch
Hi,
Thank you for your work!
Yes - I think it should be configurable. It should also automatically be
turned off if a layer is in edit mode.
Just my opinion,
Andreas
Am 22.10.2013
: [Qgis-developer] vector rendering improvement patch
Ok Andreas, I'm going to make it configurable, will present a new option in
the main properties form of the layer
I suppose he meant to do not draw simplidied geometries during editing because
it would obviously lead to produce
this issue.
Alvaro
De: Vincent Picavet vincent...@oslandia.com
Para: qgis-developer@lists.osgeo.org
Enviado: Martes 22 de octubre de 2013 14:57
Asunto: Re: [Qgis-developer] vector rendering improvement patch
Hello,
Le mardi 22 octobre 2013 14:03:53, Andreas
*Para:* A Huarte ahuart...@yahoo.es
*CC:* qgis-developer qgis-developer@lists.osgeo.org
*Enviado:* Miércoles 23 de octubre de 2013 8:46
*Asunto:* Re: [Qgis-developer] vector rendering improvement patch
Ok Andreas, I'm going to make it configurable, will present a new option
in the main
...@yahoo.es
CC: qgis-developer qgis-developer@lists.osgeo.org
Enviado: Miércoles 23 de octubre de 2013 9:33
Asunto: Re: [Qgis-developer] vector rendering improvement patch
2013/10/23 A Huarte ahuart...@yahoo.es
My simplification algorithm is a new method that uses the MapToPixel data of
current
Hi!
I have implemented the improvement of rendering in a new ad-hoc featureIterator
with the possibility that each vector-provider implements its own method of
pre-simplification.
The performance is the same as the first version I developed (~3x faster :-)).
It also implements the simplification
Hello,
Le mardi 22 octobre 2013 12:19:28, A Huarte a écrit :
I have implemented the improvement of rendering in a new ad-hoc
featureIterator with the possibility that each vector-provider implements
its own method of pre-simplification. The performance is the same as the
first version I
Hello Vincent!
For now, it is not configurable, automatically applies to all vector layer to
be painted.
I think that the userneed not configure this, of course, if dev-community
suggests, will be as you say! :-)
Is it configurable in the interface for each layer independantly ? It should
Hi,
Thank you for your work!
Yes - I think it should be configurable. It should also automatically be
turned off if a layer is in edit mode.
Just my opinion,
Andreas
Am 22.10.2013 14:01, schrieb A Huarte:
Hello Vincent!
For now, it is not configurable, automatically applies to all vector
Hello,
Le mardi 22 octobre 2013 14:03:53, Andreas Neumann a écrit :
Hi,
Thank you for your work!
Yes - I think it should be configurable.
A use case is for example when a line of symbol symbology is used, with a
symbol on each vertex. Simplifying the geometry, even when it is not
Waou :)
+1 for having some rendering guru reviewing this patch, as it seems
brilliant ;)
Michael
2013/10/8 Paolo Cavallini cavall...@faunalia.it
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Il 07/10/2013 21:32, Giovanni Manghi ha scritto:
I would really appreciate if one of the core
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Il 07/10/2013 21:32, Giovanni Manghi ha scritto:
I would really appreciate if one of the core devs can review it
and eventually commit it (or suggest modifications), so we can
start test it as this would be a much needed improvement.
agreed,
Hi all,
I don't if you have noticed but a new contributor has submitted a patch
https://github.com/qgis/QGIS/pull/922
that seems to improve the vector rendering speed up to 90% -
http://hub.qgis.org/attachments/6318/test_data_qgis_master_RenderingStatsQGIS__Feature-8725.zip
I would really
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