[Qgis-user] Making border lines disappear
David Fawcett
david.fawcett at gmail.com
Wed Jul 30 13:18:06 PDT 2014
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 <senhor.neto at gmail.com>
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" <a.neumann at carto.net> 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 <sokolic at worldonline.co.za
>> > <mailto:sokolic at worldonline.co.za>> 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:* jonathanmoules at warwickshire.gov.uk
>> > <mailto:jonathanmoules at warwickshire.gov.uk>
>> > *Sent:* 2014/07/30 12:53:25 PM
>> > *To:* qgis-user at lists.osgeo.org <mailto:qgis-user at lists.osgeo.org>
>> > *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
>> >
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