You could also try to convert the underlying polygon dataset to polyline for cartography purposes. That gets rid of adjacent lines. This was a trick that I applied to get around strange effects with AGG in MapServer quite a while ago.
David. On Wed, Jul 30, 2014 at 2:39 PM, Alexandre Neto <[email protected]> wrote: > A simple workaround (until it get fixed) could be to had a very thin > border of the same colour/transparency of the fill. > > Alexandre Neto > Em 30/07/2014 15:27, "Andreas Neumann" <[email protected]> escreveu: > >> Hi, >> >> This is an anti aliasing issue that many rendering libraries have. I >> doubt there is much the QGIS developers can do. It is beyond the control >> of the QGIS developers and an upstream problem of the rendering in the >> qt-library. >> >> The AGG rendering library solved this issue: see >> http://www.antigrain.com/screenshots/ and search for "adjacent polygons" >> in the text. >> >> I will forward this to the QGIS developers list. >> >> Andreas >> >> Am 30.07.2014 14:18, schrieb Jonathan Moules: >> > Hi Frank, >> > Thanks for confirming. Dissolving was the plan that the user was going >> > to end up trying. >> > For those interested, it's on the tracker as: >> > http://hub.qgis.org/issues/10984 >> > >> > Cheers, >> > Jonathan >> > >> > >> > On 30 July 2014 12:07, Frank Sokolic <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > Hi Jonathan, >> > >> > I've been struggling with this too. Even if you set Border Width to >> > zero the borders are faintly visible. I hack I've used occasionally >> > is to dissolve the polygons using whatever attribute you're >> > categorising by but this is a far from ideal solution. >> > >> > Frank. >> > >> ------------------------------------------------------------------------ >> > *From:* [email protected] >> > <mailto:[email protected]> >> > *Sent:* 2014/07/30 12:53:25 PM >> > *To:* [email protected] <mailto:[email protected]> >> > *Cc:* >> > *Subject:* RE: [Qgis-user] Making border lines disappear >> > >> ------------------------------------------------------------------------ >> > Hi List, >> > Using 2.4, how do you make borders on polygons invisible? Apparently >> > this worked fine in 2.2, but doesn't seem to be possible with 2.4. >> > >> > Using the standard Simple Fill. >> > >> > >> > Border style: No Pen: >> > Inline images 1 >> > >> > Border Style: Solid Line; Border: Dark green (second across from the >> > Black) (fill: Same dark green): >> > >> > Inline images 2 >> > If you look closely you'll see white lines. >> > >> > Anyone else seeing this? It was brought up by one of our more >> > observant users. >> > >> > Cheers, >> > Jonathan >> > >> > This transmission is intended for the named addressee(s) only and >> > may contain confidential, sensitive or personal information and >> > should be handled accordingly. Unless you are the named addressee >> > (or authorised to receive it for the addressee) you may not copy or >> > use it, or disclose it to anyone else. If you have received this >> > transmission in error please notify the sender immediately. All >> > email traffic sent to or from us, including without limitation all >> > GCSX traffic, may be subject to recording and/or monitoring in >> > accordance with relevant legislation. >> > _______________________________________________ >> > Qgis-user mailing list >> > [email protected] <mailto:[email protected]> >> > http://lists.osgeo.org/mailman/listinfo/qgis-user >> > >> > >> > >> > This transmission is intended for the named addressee(s) only and may >> > contain confidential, sensitive or personal information and should be >> > handled accordingly. Unless you are the named addressee (or authorised >> > to receive it for the addressee) you may not copy or use it, or disclose >> > it to anyone else. If you have received this transmission in error >> > please notify the sender immediately. All email traffic sent to or from >> > us, including without limitation all GCSX traffic, may be subject to >> > recording and/or monitoring in accordance with relevant legislation. >> > >> > >> > _______________________________________________ >> > Qgis-user mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/qgis-user >> > >> >> _______________________________________________ >> Qgis-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-user >> > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user >
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