Re: [Qgis-user] QGIS and ECW and MrSid formats
Micha, As for GDAL, I'd expect you will want to add the support for ECW and MrSID directly thru GDAL, not as some separate image support library. Yes, correct. Marco ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
Hi Marco: Marco Pasetti wrote: Hi Martin, In MrSID and ECW licenses they let developers to distribute software with MrSID/ECW libraries in binary form, so I don't see any legal problem here. Well, good to hear. The binary redistribution is in fact the key for me. That because in MS-Windows we can't build applications with some dependencies/libraries enabled and then redistribute the application binaries without those libraries bundled (that is consider them as optional features, to be separately downloaded and installed by users): if built with that libraries enabled, the application binaries will never work if some DLL (the optional features) is missing. If these are the facts, in my future development list I'll defitely add MrSID and ECW support compiling. Just a question: do we need those supports also in GDAL necessarily? That's very good news. It will be a significant boost to the QGIS feature list. As for GDAL, I'd expect you will want to add the support for ECW and MrSID directly thru GDAL, not as some separate image support library. Or maybe I don't understand something? In any case, GDAL offers its own toolbox which is useful outside of QGIS, and it would be best, in my opinion to have ECW and MrSID support right at the base. Cheers, Micha Regards, Marco ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user This mail was received via Mail-SeCure System. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
Hi Jacolin Camptocamp created such gdal package with ECW. More information here: http://cartoweb.org/cwiki/DebianPackages I thought I would give your repo a try on my etch server but I had some problems with the pgp key: sudo gpg --keyserver subkeys.pgp.net --recv-keys A37E4CF5 gpg: requesting key A37E4CF5 from hkp server subkeys.pgp.net ?: subkeys.pgp.net: Connection refused gpgkeys: HTTP fetch error 7: couldn't connect: Connection refused gpg: no valid OpenPGP data found. gpg: Total number processed: 0 Also do you have a mrsid library too? Thanks! Regards -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Visit http://linfiniti.com to find out about: * QGIS programming services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
Hi, ... Not only in Spain, in France, IGN is working with ecw, and all orthophotos are in ecw. It's really a major drawback ! JC Agustin Lobo a écrit : Hi! Could we clarify the situation for ecw and Mrsid formats in QGIS? (and perhaps put a note somewhere in the qgis web pages). I think that not being able to read these formats is a major drawback in practice. At least in Spain, a lot of public available raster layers are in these formats. Also, for example, the imagery at https://zulu.ssc.nasa.gov/mrsid/ (I know the original landsat images for those are available in not compressed formats, but that site is very convenient for many people) If there is a compiled version of gdal including support for these formats, why QGIS cannot? In any case, is there any workaround so that users can get to have ecw/Mrsid support out of their compiled version? Perhaps through a plugin? I really think that the final QGIS1.0 should be able to read in those formats, somehow. This is probably seen as a minor concern for developers, but a significant problem for users. Agus ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS and ECW and MrSid formats
Hi! Could we clarify the situation for ecw and Mrsid formats in QGIS? (and perhaps put a note somewhere in the qgis web pages). I think that not being able to read these formats is a major drawback in practice. At least in Spain, a lot of public available raster layers are in these formats. Also, for example, the imagery at https://zulu.ssc.nasa.gov/mrsid/ (I know the original landsat images for those are available in not compressed formats, but that site is very convenient for many people) If there is a compiled version of gdal including support for these formats, why QGIS cannot? In any case, is there any workaround so that users can get to have ecw/Mrsid support out of their compiled version? Perhaps through a plugin? I really think that the final QGIS1.0 should be able to read in those formats, somehow. This is probably seen as a minor concern for developers, but a significant problem for users. Agus -- Dr. Agustin Lobo Institut de Ciencies de la Terra Jaume Almera (CSIC) LLuis Sole Sabaris s/n 08028 Barcelona Spain Tel. 34 934095410 Fax. 34 934110012 email: [EMAIL PROTECTED] http://www.ija.csic.es/gt/obster ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
Hi Agus: Agustin Lobo wrote: Hi! Could we clarify the situation for ecw and Mrsid formats in QGIS? (and perhaps put a note somewhere in the qgis web pages). The situation is, unfortunately, clear: The QGIS project can't allow itself to distribute software with support for formats which they themselves can not be further distributed. And that seems to be the case with ecw. If there is a compiled version of gdal including support for these formats, why QGIS cannot? In any case, is there any workaround so that users can get to have ecw/Mrsid support out of their compiled version? Perhaps through a plugin? While I'm not a developer, the with my (very) little understanding of how QGIS and gdal interact, I don't think this is possible with a plugin. I really think that the final QGIS1.0 should be able to read in those formats, somehow. This is probably seen as a minor concern for developers, but a significant problem for users. I totally agree. My guess is that this will eventually be resolved if some kind soul will produce a QGIS+gdal pair of binaries with the ecw and/or mrSid libraries compiled in. Last time we exchanged our frustration with this situation, I even gave a name to the new gdal binaries: we need a gdal-good gdal-bad and gdal-ugly in the same fashion that licence encumbered audio codecs are released as binaries outside of the standard distro repositories. Agus Regards, Micha ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
On Fri, Oct 31, 2008 at 11:20 AM, Micha Silver [EMAIL PROTECTED] wrote: Hi Agus: Agustin Lobo wrote: Hi! Could we clarify the situation for ecw and Mrsid formats in QGIS? (and perhaps put a note somewhere in the qgis web pages). The situation is, unfortunately, clear: The QGIS project can't allow itself to distribute software with support for formats which they themselves can not be further distributed. And that seems to be the case with ecw. I think that things are not really that bad. Today I've took a brief look at the licenses for ECW and MrSid and it seems that it's okay to build and distribute qgis with their pieces of software if we distribute only the binaries (i.e. not their SDKs). They additionaly request to add their copyright text to about box / readme. MrSid SDK allows only decoding, ECW also encoding, but only up to 500mb. And I think they also require that user accepts their EULA before using those formats. If there is a compiled version of gdal including support for these formats, why QGIS cannot? In any case, is there any workaround so that users can get to have ecw/Mrsid support out of their compiled version? Perhaps through a plugin? While I'm not a developer, the with my (very) little understanding of how QGIS and gdal interact, I don't think this is possible with a plugin. For all work with raster data (except WMS) we use GDAL. So, support for ecw/mrsid must be compiled against gdal. I really think that the final QGIS1.0 should be able to read in those formats, somehow. This is probably seen as a minor concern for developers, but a significant problem for users. I totally agree. My guess is that this will eventually be resolved if some kind soul will produce a QGIS+gdal pair of binaries with the ecw and/or mrSid libraries compiled in. Last time we exchanged our frustration with this situation, I even gave a name to the new gdal binaries: we need a gdal-good gdal-bad and gdal-ugly in the same fashion that licence encumbered audio codecs are released as binaries outside of the standard distro repositories. From what I've written above, I think everything is just a matter of packaging (and some more annoyances with license statements and copyright notices). - for windows we create the whole toolchain by ourselves so including these formats in GDAL is a matter of compiling GDAL with appropriate SDKs - for linux the situation is more complicated. users usually use gdal packages from their distribution, so we would need to produce alternative packages for several distributions which would be compatible with original ones. Or create qgis-with-gdal-ugly packages with GDAL inside (but that would be nasty solution) - for mac I have no idea Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
Hi, Le Friday 31 October 2008 13:17:48 Martin Dobias, vous avez écrit : - for linux the situation is more complicated. users usually use gdal packages from their distribution, so we would need to produce alternative packages for several distributions which would be compatible with original ones. Or create qgis-with-gdal-ugly packages with GDAL inside (but that would be nasty solution) Camptocamp created such gdal package with ECW. More information here: http://cartoweb.org/cwiki/DebianPackages Regards, Y. -- Yves Jacolin --- http://softlibre.gloobe.org ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
On Oct 31, 2008, at 11:57 AM, Tom Elwertowski wrote: GDAL provides a configure script to add GRASS support as a plugin rather then built-in. There are no configure scripts for ECW and MrSID but it should be possible to copy and modify the GRASS plugin build script. William must have either done this or written his own build routine since he has created working Mac GDAL plugins. Yes, I originally started with a configured GRASS plugin makefile to create makefiles for other plugins. They're almost unrecognizable now, and are tailored to compiling for the OSX framework (universal, framework-only, no configure step), but could be easily extended to support other systems. Generally, get the OBJ list from the driver's GNUmakefile, and discover the CFLAGS and LDFLAGS (include paths and external libraries) needed for the format for your system by running configure as if you wanted to build the formats into GDAL (values will be in gdalmake.opt). Someone who knows autotools (or cmake) could make configurable standalone source packages like the GRASS plugin. - William Kyngesburye kyngchaos*at*kyngchaos*dot*com http://www.kyngchaos.com/ Mon Dieu! but they are all alike. Cheating, murdering, lying, fighting, and all for things that the beasts of the jungle would not deign to possess - money to purchase the effeminate pleasures of weaklings. And yet withal bound down by silly customs that make them slaves to their unhappy lot while firm in the belief that they be the lords of creation enjoying the only real pleasures of existence - the wisdom of Tarzan ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS and ECW and MrSid formats
Martin Dobias ha scritto: - for linux the situation is more complicated. users usually use gdal packages from their distribution, so we would need to produce alternative packages for several distributions which would be compatible with original ones. Or create qgis-with-gdal-ugly packages with GDAL inside (but that would be nasty solution) It is possible to compile ECW support in GDAL as a plugin: http://wiki.gfoss.it/index.php/Come_abilitare_il_supporto_ai_file_ECW_in_GDAL_e_visualizzarli_in_GRASS_e_QGIS#Creare_un_plugin_GDAL_per_il_supporto_ECW_.28DRAFT.29 (in Italian, sorry, but bash commands are international). All the best. pc -- Paolo Cavallini, see: * http://www.faunalia.it/pc * ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
