Bernd, Thanks for the hint. The % operator description in QGIS only says: Remainder of division This has thrown me off in the past because I have tried to search for the Modulo in the expressions dialog and nothing came up. I should probably request a change to add the modulo term at the QGIS git hub.
On Wed, Mar 3, 2021 at 1:45 PM Bernd Vogelgesang <[email protected]> wrote: > In case someone wants to google for the " % " later: it's called modulo > operator (damn, took me half an hour to remember that) > > > On 03.03.21 19:20, Sebastian Gutwein wrote: > > Sorry typo: "ELEV" :The attribute field that contains your elevation > > On Wed, Mar 3, 2021 at 1:19 PM Sebastian Gutwein <[email protected]> > <[email protected]> wrote: > > > 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 <[email protected]> > <[email protected]> > 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 > > -- > Lecturer GIS University "Roma Tre" > Consultant Environmental Risk Prevention and Hydrogeology > AZZURRA LENTINI > ++++++++++++++++++++++++++ > Italy Mobile Tel.: **(39) 338 24 40 676 > ++++++++++++++++++++++++++ > SKYPE azzurrahydro > ++++++++++++++++++++++++++ > > *[email protected] <[email protected]> > <[email protected]>* > > *[email protected] <[email protected]> > <[email protected]> * > ++++++++++++++++++++++++++ > *Par respect pour l'environnement,* > > *n'imprimez ce mail qu'en cas d'absolue nécessité* > > > > > > _______________________________________________ > Qgis-user mailing [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > _______________________________________________ > Qgis-user mailing [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > >
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