[mapserver-users] Large scale PDF output on Windows

[Yewondwossen Assefa]

Brent,

> 
>   If there's enough interest, I'd be willing to contribute the code 
> changes he made if there's a Mapserver developer/committer willing to 
> review, upgrade them to v5,and test (and it may require an RFC as there 
> was a map file addition to OUTPUTFORMAT/FORMATOPTIONS, I think).
> 

I would be willing to review/apply patches on this. I have created a bug 
on this http://trac.osgeo.org/mapserver/ticket/2596.

Best Regards

> Brent Fraser
> 
> Kristian Thy wrote:
>> On Thu, Apr 24, Flavio Hendry wrote:
>>> Discussed the issue a while ago with Frank Warmerdam. He had less
>>> problems on a LINUX System running on a 64bit machine (he supposes it
>>> could go as high as 25'000 pixels). On Windows 32 it bangs at around
>>> 10'000 to 14'000 pixels depending on content. Did not try on Windows 64.
>>
>> Thanks to advice from the list, I now have huge orthophoto pdfs. But now
>> I have another problem - using png output, I get nice 24 bit images, but
>> my pdf output is dithered 8 bit. The relevant part of my map file:
>>
>>     IMAGETYPE png24
>>     OUTPUTFORMAT
>>         NAME png
>>         MIMETYPE "image/png"
>>         DRIVER AGG/PNG
>>         EXTENSION png
>>         IMAGEMODE RGB
>>         TRANSPARENT FALSE
>>     END #outputformat
>>     OUTPUTFORMAT
>>         NAME pdf
>>         MIMETYPE "application/x-pdf"
>>         DRIVER pdf
>>         EXTENSION pdf
>>         IMAGEMODE RGB
>>         FORMATOPTION "OUTPUT_TYPE=RASTER"
>>         TRANSPARENT FALSE
>>     END #outputformat
>>
>> Removing the FORMATOPTION makes no difference.
>>
>>     http://quovadis.dk/dl/ortho.png
>>     http://quovadis.dk/dl/ortho.pdf
>>
>> The commandline incantation used to produce the images:
>>
>>     $ shp2img -m ddo.map -o ortho.pdf -s 1654 1169 -l DDO -e 659000 
>> 6058000 663200 6060970 -i pdf
>>
>> Does the pdf driver support 24 bit at all? Can I do 24 bit pngs and
>> assemble the pdfs by hand?
>>
>> \\kristian
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> 
> 


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Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

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