[Qgis-developer] (python) access to QgsHillshadeRenderer of raster layer ?

[Andreas Plesch]

Hi Nyall,

wow, that's great. I will try a nightly this week.

-Andreas


On Sun, Apr 9, 2017 at 6:53 PM, Nyall Dawson <nyall.dawson at gmail.com> wrote:

> On 10 April 2017 at 08:30, Andreas Plesch <andreasplesch at gmail.com> wrote:
> >> Date: Sat, 8 Apr 2017 13:51:43 -0700 (MST)
> >> From: Tom Chadwin <tom.chadwin at nnpa.org.uk>
> >>
> >> They should be there:
> >>
> >> https://qgis.org/api/classQgsHillshadeRenderer.html
> >>
> >>
> >
> > Thanks. Yes, they are there. The problem is I cannot find a way to get to
> > the QgisHillshadeRenderer itself, from the QgsRasterLayer.
> > QgsRasterLayer.renderer() only provides QgsRasterRenderer. Anyways, the
> > .writeXML approach works well enough. [ It is a bit strange that the
> > altitude is named angle as an xml attribute. ]
> >
> > Ideally, I would want to get the lightAzimuth and lightAltitude values
> from
> > the hillshaderendererwidget used in the layer properties gui . Is there a
> > way to get that from a processing python script (or plugin)? The idea is
> to
> > use existing values provided in the nice existing GUIs as much as
> possible.
>
> There was a missing sip cast for QgsHillshadeRenderer - without this
> in place you only get access to the common QgsRasterRenderer methods.
>
> It's fixed in https://github.com/qgis/QGIS/commit/
> 8cf5860d72e6c7d4c7345b3a880020263549a93c
>
> Nyall
>



-- 
Andreas Plesch
39 Barbara Rd.
Waltham, MA 02453
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