[Mapserver-users] Mr SID & Mapserver

Jim Burnett r000t at adelphia.net
Thu Apr 17 15:20:25 EDT 2003


ahhh. I see.
My new slackware servers are EXT3 so I might be ok with that. For now I am
splitting up the sids, and converting to tiffs with the free sid  viewer
from lizardtech.

Thanks for the info!

-jim
http://www.freegishosting.com/

----- Original Message -----
From: "Dylan Keon" <keon at nacse.org>
To: "Jim Burnett" <r000t at adelphia.net>
Cc: "Mapserver Users" <mapserver-users at lists.gis.umn.edu>
Sent: Thursday, April 17, 2003 2:56 PM
Subject: Re: [Mapserver-users] Mr SID & Mapserver


> You're probably working on an ext2 partition, which imposes the 2GB file
> size limit.  If you have disk space you might try creating a separate
> partition (or add another disk) and format it as ext3 or reiserfs.  I
> believe those filesystems both allow file sizes > 2GB, at least when
> using a recent 2.4.x kernel.  Actually, they may have even fixed that
> limitation for ext2 in recent kernels...I'm not sure.
>
> Another option for those of you using Windows is Irfanview, which is a
> fantastic little program that supports a large number of image formats,
> including MrSID.  Be sure to install the plugins.  It will allow you to
> convert MrSID images to TIFFs as a batch process.  You'll need to rename
> your world files, but that's about it.  This might not work with huge
> MrSID files, but I've had success converting 50MB files.
>
> --Dylan
>
>
> Jim Burnett wrote:
> > How do I split my larg Mr Sid file? I cant un-compress it in Linux
because
> > of the 2 gig limitation.
> > So how would I split it ?
> >
> > ----- Original Message -----
> > From: "Randy James" <rjames57 at yahoo.com>
> > To: "Jim Burnett" <r000t at adelphia.net>
> > Cc: <Mapserver-users at lists.gis.umn.edu>
> > Sent: Thursday, April 17, 2003 2:09 PM
> > Subject: Re: [Mapserver-users] Mr SID & Mapserver
> >
> >
> >
> >>Hi
> >>
> >>I have 20 gigs geotiffs broken into 160mb files and than
> >>tiled using the gdal tools; to handle large my tif files.
> >>But i'm not displaying all the tiles at once just when
> >>zooming in  (they turn on at 1:150,000) and for query
> >>results.
> >>
> >>Cheers
> >>Randy
> >>
> >>--- Jim Burnett <r000t at adelphia.net> wrote:
> >>
> >>>Yes but the problem is these Mr Sid files are 3-6gigs
> >>>un-compressed into
> >>>tiff format. Linux can only handle 2 gig files.
> >>>
> >>>-jim
> >>>
> >>>----- Original Message -----
> >>>From: "Randy James" <rjames57 at yahoo.com>
> >>>To: <r000t at adelphia.net>
> >>>Cc: <Mapserver-users at lists.gis.umn.edu>
> >>>Sent: Thursday, April 17, 2003 12:31 PM
> >>>Subject: Re: [Mapserver-users] Mr SID & Mapserver
> >>>
> >>>
> >>>
> >>>>Hi
> >>>>
> >>>>I have been using the MrSID Viewer(www.landsystems.com,
> >>>>Lizardtech) to convert MrSid files to geotiff, than
> >>>
> >>>using
> >>>
> >>>>the tif in mapserver.
> >>>>
> >>>>cheers
> >>>>Randy
> >>>>
> >>>>--- Frank Warmerdam <warmerdam at pobox.com> wrote:
> >>>>
> >>>>>Jim Burnett wrote:
> >>>>>
> >>>>>>Anyone have any ideas on how to integrate Mr SID
> >>>
> >>>with a
> >>>
> >>>>>mapserver or
> >>>>>
> >>>>>>mapscript application? Any good "on the fly" mr sid
> >>>>>
> >>>>>converters out there?
> >>>>>
> >>>>>Jim,
> >>>>>
> >>>>>I am unaware of any existing method of using MrSID
> >>>>>directly with MapServer;
> >>>>>however, Andrey Kiselev and I will be implementing
> >>>
> >>>MrSID
> >>>
> >>>>>support in GDAL
> >>>>>(used by MapServer) over the coming four weeks.  To
> >>>
> >>>use
> >>>
> >>>>>it you would still
> >>>>>need to license a MrSID SDK from Lizardtech.
> >>>>>
> >>>>>Best regards,
> s
>
> --
> ************************************************
>   Dylan Keon
>   GIS/Database Specialist
>   Northwest Alliance for Computational
>   Science and Engineering (NACSE)
>   Oregon State University
>   Corvallis, OR 97331
>   keon at nacse.org        (541) 737-6608
> ************************************************
>
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> Mapserver-users mailing list
> Mapserver-users at lists.gis.umn.edu
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>




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