[Qgis-user] contours and symbology

[Sebastian Gutwein]

I use rule based styling with this expression for my 100m contour filter
rule:
"ELEV" % 100 = 0
And then another rule that has the Else selected.
The formula is:
"ELEV" :The attribute field that contains your label
% : The remainder from division
100 : the divider
= 0 : the remainder should equal zero.
This filters all the 100m contours.

On Wed, Mar 3, 2021 at 1:01 PM Azzurra Lentini <azzurralentini at gmail.com>
wrote:

> Hi to all,
>
> I have extracted contours from a dtm raster 20 m resolution file and the
> result is a vector file of contours with 20 m of interval between the
> contours.
>
> I would like to have two different symbols for these contours: for example
> black colour and thickness 1 for the contours with interval of 100 m (0,
> 100, 200, 300 etc.) and grey colour and thickness 0.5 for the contours 20,
> 40, 60, 80, 120, 140 .. etc.).
>
> What can I do?
>
> Normally I create another contours file only for the contours equidistant
> 100 m and I put a different symbol for the 2 layers.
>
> Do you know other ways without the creation of another file?
> maybe rule-based symbology?
>
>
> Thank you, Azzurra
>
> --
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