[Qgis-developer] Symbology export in save as feature

[DelazJ]

Hi,
Thank you Andreas, I can now stop expecting to create a shapefile with a
qml (or at least, keeping the original symbology) using this option.

About what to do, I fully agree with your suggestions: let's improve it if
doable (otherwise remove) and at least hide it from formats that are not
compatible to avoid users being confused.

Regards,
Harrissou

2016-06-24 14:17 GMT+02:00 Yves Jacolin <yjacolin at free.fr>:

> Andreas,
>
> Thanks for you explenation. I added some of your description in the
> documentation.
>
> Y.
> On Friday, June 24, 2016 11:15:45 Neumann, Andreas wrote:
> > Hi Yves,
> >
> > This has mainly "historic" reasons.
> >
> > It was introduced specifically when saving QGIS layers to DXF through
> > OGR. I believe also the KML export is affected to some extent.
> >
> > Our first attempt to export QGIS layer to DXF went through OGR with OGR
> > feature  - however, this was too limited, and it was abandoned.
> >
> > "No symbology" means, simple black default lines
> >
> > "Feature symbology" means "Save with OGR Feature Styles"
> >
> > "Symbol Layer symbology" means "Save with OGR Feature Styles but export
> > the same geometry multiple times if there are multiple symbology symbol
> > layers used"
> >
> > Meanwhile the DXF export from QGIS goes through a native DXF writer -
> > without OGR, so the above approach was abandoned and hasn't been worked
> > on for some years now.
> >
> > -------------------------
> >
> > I hope this explains what it does, but as I said it is limited for
> > export to DXF/KML or potentially formats that support OGR feature styles
> > - formats that can handle styles.
> >
> > For QGIS 3.0 I see the following ways to get rid of this:
> >
> > 1. keep it but improve it (unlikely)
> >
> > 2. hide it for layers that don't support OGR feature styles (can be
> > combined with 1.)
> >
> > 3. get rid of it completely (my preferred option if 1. does not happen)
> >
> > BTW: 2. could probably be done for QGIS 2.16 and 2.14 already, to have
> > fewer confused users ...
> >
> > Hope this explains it.
> >
> > What do others think?
> >
> > Andreas
> >
> > On 2016-06-24 10:43, Yves Jacolin wrote
> >
> > > Hello,
> > >
> > > Working in the "save as ..." feature documentation I wondering what
> > > "Symbology export" parameters mean. There are 3 possibilities: "No
> > > symbology", "Feature symbology" and "Symbol layer symbology".
> > >
> > > Any idea what does it mean?
> > >
> > > Thanks,
> > >
> > > Y.
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