<div dir="ltr"><div>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.<br>
<br></div>David.<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jul 30, 2014 at 2:39 PM, Alexandre Neto <span dir="ltr"><<a href="mailto:senhor.neto@gmail.com" target="_blank">senhor.neto@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">A simple workaround (until it get fixed) could be to had a very thin border of the same colour/transparency of the fill. </p>
<p dir="ltr">Alexandre Neto</p>
<div class="gmail_quote">Em 30/07/2014 15:27, "Andreas Neumann" <<a href="mailto:a.neumann@carto.net" target="_blank">a.neumann@carto.net</a>> escreveu:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
This is an anti aliasing issue that many rendering libraries have. I<br>
doubt there is much the QGIS developers can do. It is beyond the control<br>
of the QGIS developers and an upstream problem of the rendering in the<br>
qt-library.<br>
<br>
The AGG rendering library solved this issue: see<br>
<a href="http://www.antigrain.com/screenshots/" target="_blank">http://www.antigrain.com/screenshots/</a> and search for "adjacent polygons"<br>
in the text.<br>
<br>
I will forward this to the QGIS developers list.<br>
<br>
Andreas<br>
<br>
Am 30.07.2014 14:18, schrieb Jonathan Moules:<br>
> Hi Frank,<br>
> Thanks for confirming. Dissolving was the plan that the user was going<br>
> to end up trying.<br>
> For those interested, it's on the tracker as:<br>
> <a href="http://hub.qgis.org/issues/10984" target="_blank">http://hub.qgis.org/issues/10984</a><br>
><br>
> Cheers,<br>
> Jonathan<br>
><br>
><br>
> On 30 July 2014 12:07, Frank Sokolic <<a href="mailto:sokolic@worldonline.co.za" target="_blank">sokolic@worldonline.co.za</a><br>
> <mailto:<a href="mailto:sokolic@worldonline.co.za" target="_blank">sokolic@worldonline.co.za</a>>> wrote:<br>
><br>
> Hi Jonathan,<br>
><br>
> I've been struggling with this too. Even if you set Border Width to<br>
> zero the borders are faintly visible. I hack I've used occasionally<br>
> is to dissolve the polygons using whatever attribute you're<br>
> categorising by but this is a far from ideal solution.<br>
><br>
> Frank.<br>
> ------------------------------------------------------------------------<br>
> *From:* <a href="mailto:jonathanmoules@warwickshire.gov.uk" target="_blank">jonathanmoules@warwickshire.gov.uk</a><br>
> <mailto:<a href="mailto:jonathanmoules@warwickshire.gov.uk" target="_blank">jonathanmoules@warwickshire.gov.uk</a>><br>
> *Sent:* 2014/07/30 12:53:25 PM<br>
> *To:* <a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a> <mailto:<a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a>><br>
> *Cc:*<br>
> *Subject:* RE: [Qgis-user] Making border lines disappear<br>
> ------------------------------------------------------------------------<br>
> Hi List,<br>
> Using 2.4, how do you make borders on polygons invisible? Apparently<br>
> this worked fine in 2.2, but doesn't seem to be possible with 2.4.<br>
><br>
> Using the standard Simple Fill.<br>
><br>
><br>
> Border style: No Pen:<br>
> Inline images 1<br>
><br>
> Border Style: Solid Line; Border: Dark green (second across from the<br>
> Black) (fill: Same dark green):<br>
><br>
> Inline images 2<br>
> If you look closely you'll see white lines.<br>
><br>
> Anyone else seeing this? It was brought up by one of our more<br>
> observant users.<br>
><br>
> Cheers,<br>
> Jonathan<br>
><br>
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