If you want to you can download the MrSid SDK and uncompress the sids on
your linux workstation: http://www.lizardtech.com/downloads/category/
(MrSID SDK)
I downloaded the SDK (placed it in /home/rjhale/apps and wrote a very
small messy script that does the following:
#!/bin/bash
#set library path
export LD_LIBRARY_PATH=/home/rjhale/apps/sidgeodecode/bin
#fix the extension
file=$1
newname=`echo $file | sed 's/\(.*\.\)sid/\1tif/'`
#run the Geodecode program
/home/rjhale/apps/sidgeodecode/bin/mrsidgeodecode -wf -i $file -o $newname
It usually takes just a minute or two to uncompress them on my
workstation - for me a sid that is 400 mb usually uncompresses to 6 GB -
with a small amount of work (tiling, pyramid layers) it's renders very
nicely.
I agree - building sid support into QGIS is not for the faint of heart.
I did it once but decided against - I would rather just uncompress them
using this route and be done with it.
Randy
On 08/20/2015 06:06 PM, Bernd Vogelgesang wrote:
Hi
Am 20.08.2015, 17:41 Uhr, schrieb Joachim Bergerhoff <[email protected]>:
Dears, I guess the message title is explicit enough ?
BTW, I have downloaded the SDK 9.1.0 from Imtech. The ReadMe says:
"INSTALLATION:
No specific installation is required to use the MrSID SDK beyond
copying the SDK contents to your local machine.
After installing, we suggest building and running the example
program to assure correct installation and behaviour."
But copying the SDK download (unpacked) somewhere on my disk
obviously is not enough and I am lost when it comes to "building" etc.
Thanks,
Joachim
As far as I know, there is no way, but building your own gdal with
mrsid support und Linux. The instructions can be found somewhere in
the qgis-maze, but I don't how up-to-date they are.
I tried once, but as the instructions were not really idiot-proof and
I prefer to use repositories, and as there was no clear instruction to
be found how to deal with incompatibilities, I gave up so far.
I think the masterbrains just compile everything, and the stupid
masses use a virtual Windows machine to transform to geoTIFF (like me).
There was an article mentioned in the list how to produce quite small
geoTIFF some weeks ago:
http://blog.cleverelephant.ca/2015/02/geotiff-compression-for-dummies.html
That's all I can tell
Bernd
--
Bernd Vogelgesang
Siedlerstraße 2
91083 Baiersdorf/Igelsdorf
Tel: 09133-825374
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Randal Hale
North River Geographic Systems, Inc
http://www.northrivergeographic.com
423.653.3611 [email protected]
twitter:rjhale http://about.me/rjhale
http://www.northrivergeographic.com/introduction-to-quantum-gis
Southeast OSGEO: http://wiki.osgeo.org/wiki/Southeast_US
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