Hi,
As far as I can remember from reviewing the code, server side
simplification is enabled on a per-request basis. So it should be
possible to disable it when certain parameters (like $area required)
are met.
Matthias
___
Qgis-developer mailing
On Mon, Jun 23, 2014 at 1:59 PM, Matthias Kuhn matthias.k...@gmx.ch wrote:
Hi,
As far as I can remember from reviewing the code, server side
simplification is enabled on a per-request basis. So it should be
possible to disable it when certain parameters (like $area required)
are met.
Right.
My assumption is, that in this particular case the geometry is used in
the rendering process (hence a simplified version).
It could be checked if an expression used in the rendering process
requires the geometry (or $area and maybe others?) just the way
attributes are only requested for
On Mon, Jun 23, 2014 at 9:29 AM, Matthias Kuhn matthias.k...@gmx.ch wrote:
My assumption is, that in this particular case the geometry is used in
the rendering process (hence a simplified version).
It could be checked if an expression used in the rendering process
requires the geometry (or
Hi,
I noticed this issue because I had a choropleth map showing population
density (calculated dynamically using population/$area). Some of the
polygons changed color when zooming. Simplify geometry, which is
active by default, caused minor changes to the value of $area when
zooming. I think $area
Hi Anita,
While I agree with you in general the difficulty is that if you do
serverside simplification QGIS does not even see the original geometry
anymore. So not easy to solve.
On the other hand you have several relatively easy workarounds. Either:
- disable simplification
- write the area to
Thanks for your answer Andreas,
I've one question though: If the data source is a Shapefile and
simplification is enabled, will the Field Calculator results be
dependent on the zoom? I expect they will be. Isn't that a big source
of potential confusion for the users?
And yes, I do understand that
