[Qgis-user] Re: MrSID programs
I saw recently on the list where someone was trying to use .sid files. I found these programs on Lizardtech. Maybe they will be useful to someone... Tom http://www.lizardtech.com/download/dl_options.php?page=geo#12 MrSID SDW Command line utility that generates .sdw file for associated georeferenced .sid file. Latest Release: 09-2003 MrSID Decode Command line utility that allows for decompression of MG2 or MG3 .sid files to .tif, GeoTiff, and other formats. Latest Release: 11-2008 MrSID Info Command line utility that displays metadata information embedded in .sid, .tif, and other formats. Latest Release: 06-2006 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Python scripting
Alessandro et al., > I'm also interested in using python and QGIS for simple scripts > espacially for batch processing, and some examples could be very useful! Attached is a python script for performing some basic geoprocessing functions on vector layers. The header of the file contains usage examples to help get you started... it's probably not the cleanest python code, nor the most pythonistic... but you get the idea ;-) Hope this helps to get you started... The other good resource for python scripting is: http://wiki.qgis.org/qgiswiki/PythonBindings Cheers, Carson Many thanks Carson and Alex, your help has been invaluable, and I am sure not just for myself. Thanks Carson for the example, more than I asked for and much appreciated. regards George -- View this message in context: http://n2.nabble.com/Python-scripting-tp2577010p2577897.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Python scripting
Alessandro et al.,
I'm also interested in using python and QGIS for simple scripts
espacially for batch processing, and some examples could be very useful!
Attached is a python script for performing some basic geoprocessing
functions on vector layers. The header of the file contains usage
examples to help get you started... it's probably not the cleanest
python code, nor the most pythonistic... but you get the idea ;-)
Hope this helps to get you started...
The other good resource for python scripting is:
http://wiki.qgis.org/qgiswiki/PythonBindings
Cheers,
Carson
Thanks
Ale
georgew ha scritto:
ThanKs Alex, the problem is I have not been able to find any example
that is free standing, all seem to be plugins or use QT to generate a
UI. Can you point me to a working example, however simple (e.g. read
shapefile, project,write shapefile) that can set me off on the right
path?
Many thanks
G.
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-user
--
Carson J. Q. Farmer
ISSP Doctoral Fellow
National Centre for Geocomputation (NCG),
National University of Ireland, Maynooth,
Email: carson.far...@gmail.com
Web: http://www.carsonfarmer.com/
http://www.ftools.ca/
from PyQt4.QtCore import *
from qgis.core import *
class GeoprocessingEngine( ):
'''
USAGE:
GeoprocessingEngine( func, layerA, layerB, outPath, encoding, param, merge )
func : geoprocessing function
1: Buffer
2: Convex Hull
3: Difference
4: Dissolve
5: Intersection
6: Union
7: Symetrical Difference
8: Clip
layerA : QgsVectorLayer
layerB : QgsVectorLayer
outPath : string -> "/home/cfarmer/Desktop/test.shp"
encoding : default is 'System'
param : a parameter, may be used for buffer, and dissolve
merge : should the results be merged (buffer)
EXAMPLE:
# import engine
from Geoprocessing import GeoprocessingEngine
layerA = QgsVectorLayer("/path/to/layer.shp", "layerA", "ogr")
layerB = QgsVectorLayer("/path/to/layer.shp", "layerB", "ogr")
# create geo engine
geo = GeoprocessingEngine( 5, layerA, layerB, '/home/cfarmer/Desktop/test.shp')
# compute geoprocessing event, and output result
outlayer = geo.compute() # compute() returns the output layer as a QgsVectorLayer
This alows us to link multiple runs together:
geo1 = GeoprocessingEngine( 5, layerA, layerB, '/home/cfarmer/Desktop/test1.shp')
outlayer = geo1.compute()
geo2 = GeoprocessingEngine( 3, layerA, outlayer, '/home/cfarmer/Desktop/test2.shp')
outlayer = geo2.compute()
...
...
temp files are created for better usage of memory when using large layers
'''
def __init__( self, function, layerA, layerB, outputName, encoding = 'System', param = 0, merge = False ):
self.myFunction = function
self.success = False
self.layerA = layerA
self.layerB = layerB
self.param = param
self.merge = merge
self.outputName = outputName
self.encoding = encoding
def compute( self ):
check = QFile( self.outputName )
if check.exists():
if not QgsVectorFileWriter.deleteShapeFile( self.outputName ):
return None
self.geoprocessing( self.myFunction, self.layerA, self.layerB, self.param, self.merge, self.outputName, self.encoding )
return QgsVectorLayer( self.outputName, "temp", "ogr" )
def geoprocessing( self, function, myLayerA, myLayerB, myParam, myMerge, myName, myEncoding ):
self.myFunction = function
self.myLayerA = myLayerA
self.myLayerB = myLayerB
self.myParam = myParam
self.myMerge = myMerge
self.myName = myName
self.myEncoding = myEncoding
self.vlayerA = self.myLayerA
if self.myFunction == 1 or self.myFunction == 2 or self.myFunction == 4:
( self.myParam, useField ) = self.checkParameter( self.vlayerA, self.myParam )
if not self.myParam is None:
if self.myFunction == 1:
geos, feature, match = self.buffering( useField )
elif self.myFunction == 2:
geos, feature, match = self.convex_hull( useField )
elif self.myFunction == 4:
geos, feature, match = self.dissolve( useField )
else:
self.vlayerB = self.myLayerB
if self.myFunction == 3:
geos, feature, match = self.difference()
elif self.myFunction == 5:
geos, feature, match = self.intersect()
elif self.myFunction == 6:
geos, feature, match = self.union()
elif self.myFunction == 7:
geos, feature, match = self.symetrical_difference()
elif self.myFunction == 8:
geos, feature, match = self.clip()
def buffering( self, useField ):
GEOS_EXCEPT = True
FEATURE_EXCEPT = True
vproviderA = self.vlaye
Re: [Qgis-user] Python scripting
I'm also interested in using python and QGIS for simple scripts espacially for batch processing, and some examples could be very useful! Thanks Ale georgew ha scritto: ThanKs Alex, the problem is I have not been able to find any example that is free standing, all seem to be plugins or use QT to generate a UI. Can you point me to a working example, however simple (e.g. read shapefile, project,write shapefile) that can set me off on the right path? Many thanks G. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Python scripting
georgew wrote: > > > georgew wrote: >> Hi all, I have not been able to find an answer to this question: Using the >> latest stable version of QGIS from OSGeo4W on WinXP SP3 is it possible to >> write free standing Python programs/scripts that will access QGIS objects >> (vectors, shapefiles, etc) and process them in batch, without the need for >> GUI or user intervention other than to run the script from Python command >> line (or within an IDE)? > > It should be possible, I believe OSGeo4w installs it's own python and > hence all python libraries would be on it's path not on your system > installed python. > > To use the libraries with your regular python install you probably need > to and to the PYTHONPATH environment variable of your system the path to > something like C:\OSGEO4W\QGIS\ > > Then import qgis.core and such should work. > > Alex > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user > > > ThanKs Alex, the problem is I have not been able to find any example that is > free standing, all seem to be plugins or use QT to generate a UI. Can you > point me to a working example, however simple (e.g. read shapefile, > project,write shapefile) that can set me off on the right path? > Many thanks > G. Sorry, I don't have an example. But python is much more flexible than you a giving it credit for. All of the plugins will work as examples for you, just ignore the parts of the code that involve the UI. In python if you import qgis.core and then start writing code that uses functions from the core it will just work. Alex ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Python scripting
georgew wrote: > Hi all, I have not been able to find an answer to this question: Using the > latest stable version of QGIS from OSGeo4W on WinXP SP3 is it possible to > write free standing Python programs/scripts that will access QGIS objects > (vectors, shapefiles, etc) and process them in batch, without the need for > GUI or user intervention other than to run the script from Python command > line (or within an IDE)? It should be possible, I believe OSGeo4w installs it's own python and hence all python libraries would be on it's path not on your system installed python. To use the libraries with your regular python install you probably need to and to the PYTHONPATH environment variable of your system the path to something like C:\OSGEO4W\QGIS\ Then import qgis.core and such should work. Alex ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ThanKs Alex, the problem is I have not been able to find any example that is free standing, all seem to be plugins or use QT to generate a UI. Can you point me to a working example, however simple (e.g. read shapefile, project,write shapefile) that can set me off on the right path? Many thanks G. -- View this message in context: http://n2.nabble.com/Python-scripting-tp2577010p2577236.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Python scripting
georgew wrote: > Hi all, I have not been able to find an answer to this question: Using the > latest stable version of QGIS from OSGeo4W on WinXP SP3 is it possible to > write free standing Python programs/scripts that will access QGIS objects > (vectors, shapefiles, etc) and process them in batch, without the need for > GUI or user intervention other than to run the script from Python command > line (or within an IDE)? It should be possible, I believe OSGeo4w installs it's own python and hence all python libraries would be on it's path not on your system installed python. To use the libraries with your regular python install you probably need to and to the PYTHONPATH environment variable of your system the path to something like C:\OSGEO4W\QGIS\ Then import qgis.core and such should work. Alex ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Python scripting
Hi all, I have not been able to find an answer to this question: Using the latest stable version of QGIS from OSGeo4W on WinXP SP3 is it possible to write free standing Python programs/scripts that will access QGIS objects (vectors, shapefiles, etc) and process them in batch, without the need for GUI or user intervention other than to run the script from Python command line (or within an IDE)? -- View this message in context: http://n2.nabble.com/Python-scripting-tp2577010p2577010.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Projection question
Well, I did find out (by asking): the original .sid file (which I converted to geotiff) did not contained any spatial/projection information. No wonder! Sorry for the trouble! Mikhail. >>> On 3/31/09 at 8:25 PM, in message <419243249.20090331202...@gis-lab.info>, Maxim Dubinin wrote: > Privet Mikhail, > > Are you sure both shape and geoTIFF projections are assigned > correctly? I mean is data really in the projection you says it is? > > -- > Maxim > > Вы писали 31 марта 2009 г., 20:08:01: > > MU> Hello — > > MU> I have a problem with rendering layers with different projections. I > MU> have an SHP file with "+proj=longlat +ellps=GRS80 +datum=NAD83 +no_defs" > MU> and a geoTIFF file with "+proj=longlat +ellps=WGS84 +datum=WGS84 > MU> +no_defs". That's all the projection data from "Properties". They cover > MU> exactly the same area but do not even overlap in QGIS. I also noticed > MU> that when geotiff file is rendered the distances that should be 3 > MU> degrees are shown as about 10 degrees (my project options are set to > MU> Decimal Degrees) . I suspect that there is some confusion with > MU> meters/feet somewhere in the reprojection process. > > MU> Is there any way to add "+units" option to the description of the > MU> layer's projection? Would this solve the problem? > > MU> Thank you for your time, > > MU> Mikhail. > MU> ___ > MU> Qgis-user mailing list > MU> Qgis-user@lists.osgeo.org > MU> http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: [Qgis-developer] Venue for next hackfest...Vienna?
Thursday 02 April 2009 15:25:28 Jürgen E. Fischer napisał(a): > Hi Werner, > > On Thu, 02. Apr 2009 at 09:09:19 +0200, Werner Macho wrote: > > I were just at the university and asked and got acceptance > > immediately. > > Cool. +1 from me. No problem for me too :-) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Projection question
Thank you for the suggestions, Zoltan — Unfortunately, no luck. I enabled "on the fly" and set project's CRS to WGS84 (same as the GoeTiff's) but no changes in the way they are rendered in QGIS: different size and far from each other. What else can I try? Mikhail. >>> On 4/1/09 at 3:14 AM, in message , Siki Zoltan wrote: > Hi Mikhail, > > Did you enable on the fly projection in the project properties window? > QGIS cannot reproject rasters on the fly, so you must set your project > projection to the same projection of your raster layer. QGIS will > reproject vectors on the fly. > > regards, > Zoltan > > On Tue, 31 Mar 2009, Mikhail Umorin wrote: > >> Hello ̇̇ >> >> I have a problem with rendering layers with different projections. I >> have an SHP file with "+proj=longlat +ellps=GRS80 +datum=NAD83 +no_defs" >> and a geoTIFF file with "+proj=longlat +ellps=WGS84 +datum=WGS84 >> +no_defs". That's all the projection data from "Properties". They cover >> exactly the same area but do not even overlap in QGIS. I also noticed >> that when geotiff file is rendered the distances that should be 3 >> degrees are shown as about 10 degrees (my project options are set to >> Decimal Degrees) . I suspect that there is some confusion with >> meters/feet somewhere in the reprojection process. >> >> Is there any way to add "+units" option to the description of the >> layer's projection? Would this solve the problem? >> >> Thank you for your time, >> >> Mikhail. >> ___ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/qgis-user >> ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Projection question
Privet, Maxim — I am not 100% sure, but I am reasonably certain: I got them from a public Texas agency that provides spatial data (www.tnris.org). How do I find out for sure? Mikhail. >>> On 3/31/09 at 8:25 PM, in message <419243249.20090331202...@gis-lab.info>, Maxim Dubinin wrote: > Privet Mikhail, > > Are you sure both shape and geoTIFF projections are assigned > correctly? I mean is data really in the projection you says it is? > > -- > Maxim > > Вы писали 31 марта 2009 г., 20:08:01: > > MU> Hello — > > MU> I have a problem with rendering layers with different projections. I > MU> have an SHP file with "+proj=longlat +ellps=GRS80 +datum=NAD83 +no_defs" > MU> and a geoTIFF file with "+proj=longlat +ellps=WGS84 +datum=WGS84 > MU> +no_defs". That's all the projection data from "Properties". They cover > MU> exactly the same area but do not even overlap in QGIS. I also noticed > MU> that when geotiff file is rendered the distances that should be 3 > MU> degrees are shown as about 10 degrees (my project options are set to > MU> Decimal Degrees) . I suspect that there is some confusion with > MU> meters/feet somewhere in the reprojection process. > > MU> Is there any way to add "+units" option to the description of the > MU> layer's projection? Would this solve the problem? > > MU> Thank you for your time, > > MU> Mikhail. > MU> ___ > MU> Qgis-user mailing list > MU> Qgis-user@lists.osgeo.org > MU> http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: [Qgis-developer] Venue for next hackfest...Vienna?
Hi Werner, On Thu, 02. Apr 2009 at 09:09:19 +0200, Werner Macho wrote: > I were just at the university and asked and got acceptance > immediately. Cool. +1 from me. Flights look cheap from here. I'll ignore the train ride from here to the next airport for now - You know why ;) Jürgen -- Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-20 Dipl.-Inf. (FH) Rheinstraße 13Fax. +49-4931-918175-50 Software Engineer D-26506 Norden http://www.norbit.de -- norBIT Gesellschaft fuer Unternehmensberatung und Informationssysteme mbH Rheinstrasse 13, 26506 Norden GF: Jelto Buurman, HR: Amtsgericht Emden, HRB 5502 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] raster projection not recognized
Hi all. When loading a jpg raster, the shell says: Critical: QgsCoordinateReferenceSystem::createFromWkt -- theWkt is uninitialised, operation failed Hi - I am still novice in use of qgis (previously used 0.11), but recently installed qgis1.0.1 as per apt-get for linux (ubuntu hardy) (did remove previous qgis as per instructions) During install process, there were a lot of other dependencies that were suggested, I did (nearly) all of them. when I then started to use qgis, got a similar msg as above when loading a jpg raster (msg when starting qgis in terminal). Checked up with GUI Synaptic Package Manager, added in what looked like another dependency i'd missed, and I can now load the jpg, but I still get the same message... if I wait a bit, the image loads... Beyond me, but just thought the feedback may be useful or at least of interest to someone out there?! -- View this message in context: http://n2.nabble.com/raster-projection-not-recognized-tp2503003p2574797.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS windows v's linux from a newbie perspective
so in my opinion you should contact the companies involved with MrSID and ecw to change their licence in some sort of dual licence like other companies did (e.g. Trolltech, MySQL). After all they are interested in widespread use of their technology - so they should open up and change their licence so it can become a regular component of gdal/ogr. Otherwise I don't see an easy solution. An alternative would be to ask the data providers for their original data. I am sure they have their data somehwer available with lossless compression - they wouldn't throw their originals away - would they? Both MrSID and ECW are lossy compressions ... Andreas On Thu, April 2, 2009 10:44 am, Agustin Lobo wrote: > I absolutely disagree. I'm not the question, I can compile (provided > the appropriate directions are there). The problem is that if my 30 > students twice a year have to > compile or, worse, have to hire someone to do it in order to > be able to use mrsid/ecw, they will just keep using windows. Or not > using qgis. > > Linux cannot be a system for which you have to either become > able of compiling QGIS or hire someone to do it. If this were the case, > binaries should not be distributed. > > Agus > > Craig Leat wrote: >> >>> ECW is easy to compile on Linux. I never tried to compile MrSid. >>> >> >> MrSid seems to becoming the standard format for government raster data >> here, so I self compile. Compiling on Ubuntu with MrSid libs is no big >> deal and the performance of the MrSid SDK is excellent, in my >> experience. Those that need ECW and MrSid and feel strongly against >> compiling themselves, should hire someone to do it for them. >> >> Craig >> ___ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/qgis-user >> >> > > -- Andreas Neumann http://www.carto.net/neumann/ http://www.svgopen.org/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] AW: [Qgis-developer] Venue for next hackfest...Vienna?
Hi all It's a great idea to meet in Vienna. +1 Horst Dr. Horst Düster Stv. Amtschef / GIS-Koordinator Kanton Solothurn Bau- und Justizdepartement Amt für Geoinformation SO!GIS Koordination Rötistrasse 4 CH-4501 Solothurn Telefon ++41(0)32 627 25 32 Telefax ++41(0)32 627 22 14 mailto:horst.dues...@bd.so.ch http://www.agi.so.ch -Ursprüngliche Nachricht- Von: Tim Sutton [mailto:li...@linfiniti.com] Gesendet am: Donnerstag, 2. April 2009 01:10 An: qgis-user List; qgis-developer; Werner Macho Betreff: [Qgis-developer] Venue for next hackfest...Vienna? -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all Werner Macho has secured a location for a hackfest in Vienna in Oct 2009. Martin and others potentially attending - how would you like to proceed? I am happy to go to Vienna this time and Prague the next and would like to suggest that since Werner is so enthusiastic, we let him run with it and we can start planning for the event. Please vote +1 if you are happy to go to Vienna +1 from me Venue details etc will go here: http://wiki.qgis.org/qgiswiki/QgisHackfest2009_2 Regards - -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAknT9DYACgkQqk07qZdiYjeOowCfYsFFsq68UDz9G/WGZ6/oVBp3 fsIAoLmVceN+eHJo+XyIQFWV1lgg4F20 =6TjQ -END PGP SIGNATURE- ___ Qgis-developer mailing list qgis-develo...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
AW: [Qgis-user] Re: [Qgis-developer] Venue for next hackfest...Vienna?
Hi Werner Thank you for the organisation. In my opinion Vienna is a very nice place for a hackfest, so +1 from my side. I think the expensiveness is not so bad (at least compared to Zurich). And the location in the center of Europe makes it easily accessible for most community members (and Tim is used to long distance flights anyway :-) ) Regards, Marco -Ursprüngliche Nachricht- Von: qgis-user-boun...@lists.osgeo.org im Auftrag von Werner Macho Gesendet: Do 02.04.2009 09:09 An: Jachym Cepicky Cc: qgis-user List; qgis-developer Betreff: Re: [Qgis-user] Re: [Qgis-developer] Venue for next hackfest...Vienna? Hi to all! I already mentioned .. It seems that there's no _must_ to do the hackfest at this date in vienna.. If there are other (and better) places I'm open to come there too. I were just at the university and asked and got acceptance immediately. I told them that I've to ask first and if Vienna is accepted I'll contact them with further plans. I think theres enough time to think about it - and all I can say is: "Vienna is ready for it" I'll continue with arrangements and search for hotels .. At least I can use this information later on.. Can someone initiate something like a "voting-page?" regards Werner ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS windows v's linux from a newbie perspective
Craig Leat ha scritto: > I struggle to understand why some people are so willing to pay for a > Windows OS, but are repulsed by the idea of paying for a free software > service??? (May be a bit harsh - I hope you understand what I > mean...). This discussion is all hypothetical and obviously requires a > willing and able builder. I think we all agree more than it appears here: the question is, without resources (preferably human, otherwise financial), free software cannot exist. When a majority of the happy QGIS users will put some of their time|money in it, we will be able to solve these and other problems easily. So come and join our sponsorship and donation programme! http://www.qgis.org/sponsorship.html All the best. -- Paolo Cavallini: http://faunalia.it/pc ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS windows v's linux from a newbie perspective
Agustin Lobo : > I absolutely disagree. I'm not the question, I can compile (provided > the appropriate directions are there). The problem is that if my 30 students > twice a year have to > compile or, worse, have to hire someone to do it in order to > be able to use mrsid/ecw, they will just keep using windows. Or not using > qgis. > > Linux cannot be a system for which you have to either become > able of compiling QGIS or hire someone to do it. If this were the case, > binaries should not be distributed. Why would each student need to pay for a build service? Surely they don't all run different OS variants on campus? In this hypothetical arrangement, the consultant gets paid once (by the university?) for his build service and you distribute the binary to your students, family and friends (after all it's a GPL app). I struggle to understand why some people are so willing to pay for a Windows OS, but are repulsed by the idea of paying for a free software service??? (May be a bit harsh - I hope you understand what I mean...). This discussion is all hypothetical and obviously requires a willing and able builder. Craig ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS windows v's linux from a newbie perspective
I absolutely disagree. I'm not the question, I can compile (provided the appropriate directions are there). The problem is that if my 30 students twice a year have to compile or, worse, have to hire someone to do it in order to be able to use mrsid/ecw, they will just keep using windows. Or not using qgis. Linux cannot be a system for which you have to either become able of compiling QGIS or hire someone to do it. If this were the case, binaries should not be distributed. Agus Craig Leat wrote: ECW is easy to compile on Linux. I never tried to compile MrSid. MrSid seems to becoming the standard format for government raster data here, so I self compile. Compiling on Ubuntu with MrSid libs is no big deal and the performance of the MrSid SDK is excellent, in my experience. Those that need ECW and MrSid and feel strongly against compiling themselves, should hire someone to do it for them. Craig ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Problem in compilation of source
Hi, you'll have to upgrade GEOS to version 3.0 (or later) to compile svn trunk. Regards Martin On Wed, Apr 1, 2009 at 8:16 PM, wrote: > When I try to build from source, I get: > > /home/mccue/system/dev/cpp/qgis/src/core/qgsgeometry.cpp: In member function > ‘QgsGeometry* QgsGeometry::simplify(double)’: > /home/mccue/system/dev/cpp/qgis/src/core/qgsgeometry.cpp:5348: error: > ‘GEOSSimplify’ was not declared in this scope > make[2]: *** [src/core/CMakeFiles/qgis_core.dir/qgsgeometry.o] Error 1 > make[1]: *** [src/core/CMakeFiles/qgis_core.dir/all] Error 2 > make: *** [all] Error 2 > > This is revision 10449 > > Ken McCue > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] Mrsid business
Might some of these help: http://trac.osgeo.org/gdal/wiki/MrSID http://trac.osgeo.org/gdal/wiki/ECW http://trac.osgeo.org/gdal/ticket/2385 http://trac.osgeo.org/gdal/ticket/2683 http://ubuntuforums.org/showthread.php?t=515046 http://wiki.gfoss.it/index.php/Come_abilitare_il_supporto_ai_file_ECW_in_GDAL_e_visualizzarli_in_GRASS_e_QGIS I'm also starting to ask in the gdal list, but a developer would know better how to handle this issue. My point is that this is not "just a gdal issue". For qgis users, this is a qgis issue. Maybe this type of support is not seen as urgent in the gdal community, but our requests might make them change their mind. Agus Andreas Neumann wrote: Hi Alex, Thanks for clarification. I had a look at the LizardTech webpage (http://www.lizardtech.com/download/) and couldn't find a source code release to download and compile for gdal support. Would I have to download a SDK (requires registration first?) Does it also properly support 64bit Linux? The problem with many of those free/but closed source apps is that they usually only support mainstream platforms (usually 32 bit Intel Linux) - they wouldn't support PowerPC/ARM, 64 bit/AMD Linux support. For the same reason I don't like Flash and Acrobat. They usually also support only mainstream platforms. Andreas On Thu, April 2, 2009 6:14 am, Alex Mandel wrote: Reading threw several threads it kept coming up and I thought I'd try to clarify from what I know. MrSID is free to use, as with many linux distro's it's not part of the defualt build of say gdal because it's not open source. But it is indeed free just like acrobat or flash or an of those "non-free" apps. This is what I understand from listening to MPG who I believe works for lizardtech (which is an OSGeo sponsor). Maybe we can offer up a 2nd build via launchpad for the "non-free" version of gdal build with support turned on. Alex ___ Qgis-developer mailing list qgis-develo...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] Mrsid business
The question is not whether we like those formats, the question is that in Catalonia we have 303 1:25000 RC orthoimages + 303*4 1:5000 RC orthoimages, acquired at least twice in most of the country, actually 4 times in many cases, + additional cover in 1:25000 CIR for most of the country, some of it twice. All this is freely distributed by our mapping agency as MrSid format. Therefore, there is simply no room for a system not being able to read this imagery here. I do not know for the rest of Spain, but at least for Andalucia the situation is similar. I can look into it in more detail. I'm not sure which is the situation in other European countries, can try to look into that as well. And the data in the zulu server are 2 worldwide coverages of landsat images. Not insignificant either. Agus Andreas Neumann wrote: I try to avoid ecw and MrSid as you never know what these companies are up to. Tomorrow they may charge you more to access your image data. It is never good to store your data in formats you have no control of. Storage space is so cheap nowadays that I store all of my data in tiffs. ECW is easy to compile on Linux. I never tried to compile MrSid. Back when I tried it was also slower than tiff (with pyramids) and interoperability with other GIS software was poor. Andreas On Wed, April 1, 2009 6:51 pm, Agustin Lobo wrote: Darren, If you need ECW/Mrsid support (which is important here as most official imagery is freely distributed as MrSid and many (excellent) hiking maps as ECW, that in addition to the Landsat imagery in the https://zulu.ssc.nasa.gov/mrsid/), then, I must sadly state that you face the following alternative: You either use windows and qgis or use linux and not qgis (unless you are able to make an special compilation of gdal libraries and the compile qgis with those libraries in linux) Also, as far as I have seen, using grass under windows is not as straightforward as using it in linux, although it seems that this is improving. Agus (an ubuntu user forced to often use windows) Alex Mandel wrote: Reading threw several threads it kept coming up and I thought I'd try to clarify from what I know. MrSID is free to use, as with many linux distro's it's not part of the defualt build of say gdal because it's not open source. But it is indeed free just like acrobat or flash or an of those "non-free" apps. This is what I understand from listening to MPG who I believe works for lizardtech (which is an OSGeo sponsor). Maybe we can offer up a 2nd build via launchpad for the "non-free" version of gdal build with support turned on. Alex ___ Qgis-developer mailing list qgis-develo...@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: [Qgis-developer] Venue for next hackfest...Vienna?
Hi to all! I already mentioned .. It seems that there's no _must_ to do the hackfest at this date in vienna.. If there are other (and better) places I'm open to come there too. I were just at the university and asked and got acceptance immediately. I told them that I've to ask first and if Vienna is accepted I'll contact them with further plans. I think theres enough time to think about it - and all I can say is: "Vienna is ready for it" I'll continue with arrangements and search for hotels .. At least I can use this information later on.. Can someone initiate something like a "voting-page?" regards Werner ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
