Re: [Qgis-user] How to convert ECW using open source packages into something else? [ANSWERED]

2015-08-04 Thread Simon Cropper
Thanks everyone. I got the message "GeoTiff is the preferred alternative file format to ECW and gdal on Windows the method of converting the ECW to GeoTiff". It's lucky I still have access to a Windows machine :-D but wonder what I would do if I only had access to Linux :-\ Again, thanks f

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-04 Thread Enrique
As recommended by Paul Ramsey, tiled schema is a better option, so I add it to gdal_translate command. Thanks! a. Reading ECW and compressing to JPG (set your favourite quality, 80 is a good choice for orthoimages; also CACHEMAX could be increased): gdal_translate --config GDAL_CACHEMAX 1000 --

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-04 Thread Steve Golden
If you have access to Windows XP and can install GDAL, gdal_translate is the way to go to convert ECW to something else and GeoTIFF should be on your list for that something else. There are a lot of webpages out there with sample gdal_translate commands, but I recommend reading about GeoTIFF comp

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-04 Thread Andre Joost
Am 04.08.2015 um 06:20 schrieb Nathan Woodrow: Mainly because on windows the package is all standalone and ECW is included in that package. So you just install and it should just work out of the box. I have had working ECW support since 1.8 or before, only a small time at 2.0 where we (us develo

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-04 Thread Enrique
Summing up my experience with GTIF orthoimages, based on suggestions from other users, if someone is interested in: - GTIF with internal JPEG compression + internal pyramids/overviews also with JPEG compression (see a. and b. commands below as examples). - As you said, required GDAL compiled with

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Nicolas Cadieux
Hi, Have you ask for help on the gdal user or developer lists?  They have help me in the past.  If you can't get it to work in Linux, you should try it in a Windows virtual machine.   Not the best option but it would probably work. Nicolas Cadieux M.Sc. Les Entreprises Archéotec inc.  8548,

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Nathan Woodrow
Mainly because on windows the package is all standalone and ECW is included in that package. So you just install and it should just work out of the box. I have had working ECW support since 1.8 or before, only a small time at 2.0 where we (us developers) got a bit confused with the WCW licence but

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Simon Cropper
> should work out of the box on WIndows Why would this be the case -- the licence agreement applies to Linux as much as Windows. Does your version support ECW files? Use gdalinfo to see supported raster formats. What does it report? On 04/08/15 14:09, Nathan Woodrow wrote: OK ECW support sho

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Nathan Woodrow
OK ECW support should work out of the box on WIndows if you are able to use that. I have never really tied on Linux so can't help there. Regards, Nathan On Tue, Aug 4, 2015 at 2:07 PM, Simon Cropper < cont...@simonchristophercropper.com> wrote: > On 04/08/15 14:05, Nathan Woodrow wrote: > > Is

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Simon Cropper
On 04/08/15 14:05, Nathan Woodrow wrote: Is this for Windows or another platform? Ubuntu 14.04 although I have access to Windows Vista and XP. Regards, On Tue, Aug 4, 2015 at 1:45 PM, Simon Cropper > wrote: Hello, I have recently tried

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Simon Cropper
On 04/08/15 13:59, Nicolas Cadieux wrote: Hi, You could use gdal translate directly I imagine and try to figure out why it's not working from there. I would use a tiff format. Have you tried on another computer? http://www.gdal.org/gdal_translate.html Gdal will only work if it is pre-co

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Nathan Woodrow
Is this for Windows or another platform? Regards, On Tue, Aug 4, 2015 at 1:45 PM, Simon Cropper < cont...@simonchristophercropper.com> wrote: > Hello, > > I have recently tried to get QGIS to work with ECW files. > > Despite several days of multiple > installs/reinstalls/uninstalls/lib-upgrades/

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Simon Cropper
On 04/08/15 13:58, Andre Joost wrote: Am 04.08.2015 um 05:45 schrieb Simon Cropper: My first question is, what is a good alternative to ECW files for use on QGIS? Geotiff should always work on QGIS. BTW, write support for ECW is still limited without a license. OK. GeoTiff sound good.

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Nicolas Cadieux
Hi, You could use gdal  translate directly I imagine and try to figure out why it's not working from there.  I would use a tiff format. Have you tried on another computer? http://www.gdal.org/gdal_translate.html Nicolas Cadieux M.Sc. Les Entreprises Archéotec inc.  8548, rue Saint-Denis Mont

Re: [Qgis-user] How to convert ECW using open source packages into something else?

2015-08-03 Thread Andre Joost
Am 04.08.2015 um 05:45 schrieb Simon Cropper: My first question is, what is a good alternative to ECW files for use on QGIS? Geotiff should always work on QGIS. BTW, write support for ECW is still limited without a license. The second question, how do I convert the ECW file into this for