[Qgis-developer] Re: Symbol pattern scaling issues: raster versus vector pdf

[John C. Tull]

Hi Marco,

I tested with qt-4.7 preview code. The patch had not been applied, so I patched it, compiled, etc. Unfortunately, the symbol scaling problem was not resolved. Additionally, svg symbols in the legend were being misplaced when I printed a vector pdf file.

Using the untouched 4.7 preview code, the offset problem with the legend icons was fixed. The oversized dot pattern fill was still present.

So this does not appear to be the solution to the problem with polygon pattern fill issues.

Regards,
John

On Mar 30, 2010, at 12:01 PM, Marco Hugentobler wrote:

> Hi John
> 
> The vector scaling issue in (vector) pdf is a bug in Qts pdf paint engine:
> 
> http://bugreports.qt.nokia.com/browse/QTBUG-5114
> 
> But now there is a patch for it in the qt bugtracker. So hopefully it is fixed 
> in the newer versions (or you could apply the small modification in the ticket 
> if you have a 4.5).
> 
> Regards,
> Marco
> 
> Am Dienstag, 30. März 2010 17.59:59 schrieb John C. Tull:
>> Hi Marco,
>> 
>> I assume you saw the bug I filed the other day on this:
>> https://trac.osgeo.org/qgis/ticket/2598
>> 
>> I wanted to follow up with you because exporting to vectorized pdf seems to
>> be a possible workaround for the strange polygon fill/shading bug that
>> occasionally crops up for me (recall our communication and the screenshots
>> from the hackfest). For projects that have the fill problem, exporting to
>> pdf as a vectorized pdf file avoids the fill problem. Unfortunately, the
>> issue with symbol fill pattern differences arises, as described in the bug
>> report.
>> 
>> I'm hoping there is a simple solution to this problem. Otherwise, I am at a
>> loss for creating printable, high-quality maps in qgis for many of my
>> projects.
>> 
>> Regards,
>> John
>> 
> 
> 
> -- 
> Dr. Marco Hugentobler
> HUGIS GmbH
> Webereistr. 66
> CH-8134 Adliswil
> marco at hugis.net
> www.hugis.net
> Technical Advisor QGIS Project Steering Committee