[Qgis-developer] Question on inverted polygon renderer

[Mathieu Pellerin]

Here's a quick example of what the combination of inverted polygon and
shapeburst fill can do: http://i.imgur.com/7n6rxJx.jpg

Since shapeburst fill can use map-based units, the "outer glows"-like
effect of polygons can be spatially relevant, i.e. in the above map, the
glow could represent a specific distance, 2km, within which a growing
impact on local population is to be expected.

Math


On Tue, Jun 17, 2014 at 4:15 AM, Nyall Dawson <nyall.dawson at gmail.com>
wrote:

>
> On 17/06/2014 6:44 am, "Régis Haubourg" <
> regis.haubourg at eau-adour-garonne.fr> wrote:
> >
> > inverted style + shapeburst give crazy cool rendering!
>
> A quick tip if you're using shapeburst with inverted polygons - you must
> have the "shade to a set distance" option selected, and set a relatively
> small distance. Otherwise you'll see shading from the canvas edges (refs
> #10570, #9757).
>
> Mathieu Pellerin also has some nice examples of inverted shapeburst fills
> used to shade the exterior of polygons in a thematic map - i'm not sure if
> he's posted them on the flickr group yet.
>
> Nyall
>
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