[FGS] MrSID Support

Wendell Dingus wendell at bisonline.com
Fri Jun 26 11:08:38 EST 2009

Sorry for not replying previously. We ended up installing FGS on a 32-bit box, building the module for MrSID support, moving it back to our 64-bit box. We had to do this because no combination of trying to force "32-bit mode" on the primary box would allow it to build cleanly. We have installed the 32-bit MrSID SDK files and as far as FGS is concerned this is a fully 32-bit install. In reality though the box is CentOS x86_64. We too pretty much don't use 32-bit for anything any more, short of a few specialized things like this. The server mounts an 8TB GFS filesystem so 64-bit support was pretty much a must. I have no idea how much the mathematical calculations behind MapServer, GDAL, MrSID and other things would benefit from 64-bit though. Some things I've found to be incredibly faster with 64-bit OSes, others not so much. 

Normand, thank you very much! What you provided worked like a charm (once we did so on a 32-bit machine). 


----- "Kris R. DeLaney" <botany at strato.net> wrote: 
> Howdy: 
> I do not intend to use 32bit software or hardware to run GIS mapping or 
> image processing functions. This type of processing is too demanding for 
> that. However, after so much correspondence, I would like to see the 
> end-to-end proceedure for doing so. It may help solve some future problems. 
> The command-by-command sequence for implementing MrSID/JP2MrSID support 
> uisng FGS would be useful to have. I hope Wendell/Normad provide it. 
> Thanks, 
> Kris DeLaney 
> ----- Original Message ----- 
> From: "Normand Savard" <nsavard at mapgears.com> 
> To: "Wendell Dingus" <wendell at bisonline.com> 
> Cc: <foss-gis-suite at lists.maptools.org> 
> Sent: Tuesday, June 16, 2009 9:06 AM 
> Subject: Re: [FGS] MrSID Support 
> > Wendell Dingus wrote: 
> >> I believe we're OK now. We fired up a 32-bit VM and copied all the /opt/* 
> >> stuff to it and was able to build the module cleanly. Seems fine once we 
> >> copied back to the 64-bit box as well... 
> >> 
> >> [root at gis fgs-9.5]# gdalinfo --formats | grep SID 
> >> MrSID (ro): Multi-resolution Seamless Image Database (MrSID) 
> >> JP2MrSID (ro): MrSID JPEG2000 
> >> 
> >> 
> > Wendell, 
> > 
> > I'm happy to hear that. I think it could be good for all of us to know 
> > all the process you follow to make FGS works on Centos. Is it possible 
> > for you to write a short email to describe that? 
> > 
> > Thanks. 
> > 
> > Norm 
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> > 
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