Re: [Qgis-user] Cannot export selected layer
hi roy, you've gone through the correct steps for exporting a selected layer. could you post your data? (sub-sample would do) so i could look at it. what os? cheers, richard -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Cannot-export-selected-layer-tp4998714p4998741.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Cannot export selected layer
In QGIS 1.8 I selected a subset of polygons by attribute from a vector layer I wanted to save only the selected polygons and delete the rest So I chose Layer/Save selection as vector file and saved as SHP, The message box said this was successful, but it did not export any thing. Only empty files were created I tried another way, by saving the selection as CSV. This time the message said it had been saved but in fact no file was created. Strange. In the orginal layer, the selection is clear. I even tried to invert selection and then delete the new selection, leaving me only with the polygons I wanted, but the delete selection button was greyed out ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Ftools and MMqgis behave differently
I made an experiment trying to follow this (http://www.surfaces.co.il/?p=616). I used the suggested ftools option to create the vector grid. I also made a grid using mmqgis, and just to be safe a point layer as csv. Grids are in lat lon. Points were reprojected to a custom lcc CRS (INEGI´s parameters).I loaded the Ponints in ccl, defined that I wanted on the fly reprojection in the project and these are the problems: 1)Vector grid created with ftools just touch the points at the corners 2)MMqgis grid touch the points I wonder why is this happening, grid layers were created using the same interval (15 minutes). Following a suggestion in Stackexchange (see http://gis.stackexchange.com/questions/32353/how-to-display-both-scalebar-in-kilometers-and-grid-in-lat-long-degrees-in-quant/32359#comment43534_32359) I used the densify tool in ftools. I have the same result. The layer created with ftools is closer but do not touch the the points. Here you can see the problems as images http://dl.dropbox.com/u/42543948/problem1.zip here is the data http://dl.dropbox.com/u/42543948/Grids.zip Thanks for any hint. I am using Qgis 1.8, standallone installer, win7 64bits, 8gb of ram Gerardo Jiménez Delgado Instituto de Investigaciones Antropológicas Universidad Nacional Autónoma de México Ciudad Universitaria s/n Coyoacan 04510 Mexico City Mexico 56 22 95 16 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Help cutter raster
Make sure that the mask layer has polygons (features) in it, or if you are editing, make sure that you've saved the polygons you drew. (Asegúrate que la capa que usas como máscara tenga polígonos, o si estás editandola, asegúrate que has guardado los polígonos que dibujaste). Regards, Germán 2012/8/29 lorena Coelho > Hola, probe y no puedo...el error dice ERROR: Did not get any cutline > features. La mascara si la crea...pero no me corta el raster. Muchas Gracias > > > 2012/8/29 Germán Carrillo > >> Hi Lorena, >> >> if you want to clip an image by using a mask layer, you must create first >> that mask layer, which must be a polygon layer. You can do so in >> Layer->New->New Shapefile Layer. Set for the mask layer the same reference >> system of the image. >> >> If you still have troubles please send to this list a detailed >> description of the error you get, e.g., a screenshot or the error message. >> >> I tried this out in QGIS 1.8.0 and it works. >> >> Regards, >> >> Germán >> >> >> 2012/8/28 lorena Coelho >> >>> Hola, Muchas Gracias. >>> Voy a intentar explicarme. Estoy usando Quantum Gis 1.8.0 Lisboa. Para >>> cortar un raster voy a RASTER/EXTRACCIÓN/CLIPPER. entonces se me abre un >>> ventana que en el medio dice; Modo de corte y tengo dos opciones >>> por extensión o por capa de mascara. >>> >>> Por extensión puedo cortar el raster sin problema pero..por capa de >>> mascara no estoy pudiendo. >>> Lo cual no me esta permitiendo realizar cortes irregulares. >>> >>> Espero me puedan ayudar...Gracias >>> >>> >>> 2012/8/28 Germán Carrillo >>> Or post your question in Spanish here, I know there is some people who would understand, and even if they are not able to solve your doubts, they would help you rephrasing your question in English. 2012/8/28 Etienne Tourigny > Hi I'm sorry but I don't understand your question... you mean that it > doesn't work if the raster is a mask? > > By the way, there is a Spanish list at osgeo, although not specific to > qgis > > http://lists.osgeo.org/pipermail/spanish/ > > Etienne > > On Tue, Aug 28, 2012 at 3:39 PM, lorena Coelho > wrote: > > Hi, thanks for your quick response. The add gdaltools what I have > on. In > > fact cut a raster if I can, so I can not cut the raster is a mask. > That is > > asking that the court limit is determined mask. Thanks. Lorena > > > > > > 2012/8/28 Germán Carrillo > >> > >> Believe it or not, names in 'Spanish' are: > Ráster->Extraction->Clipper :) > >> (Ráster->Extracción->Cortador/Cortar) > >> > >> > >> 2012/8/28 Etienne Tourigny > >>> > >>> make sure gdaltools plugins is enabled (plugins->Manage Plugins), > then > >>> go to Raster->Extraction->clipper. Not sure what the names are in > >>> español though. > >>> > >>> On Tue, Aug 28, 2012 at 12:37 PM, lorena Coelho > >>> wrote: > >>> > Hello, > >>> > I am a magister student in Uruguay. I'm working with QGIS. I can > not > >>> > cut a > >>> > raster mask, can someone help. What is the complement need? I'm > using > >>> > Quantum GIS 1.8.0 Lisbon > >>> > thanks > >>> > > >>> > > >>> > ___ > >>> > 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 > >> > >> > >> > >> > >> -- > >> --- > >>|\__ > >> (:>__)( > >>|/ > >> > >> Soluciones Geoinformáticas Libres > >> http://geotux.tuxfamily.org/ > >> http://twitter.com/GeoTux2 > >> > > > -- --- |\__ (:>__)( |/ Soluciones Geoinformáticas Libres http://geotux.tuxfamily.org/ http://twitter.com/GeoTux2 >>> >> >> >> -- >> --- >>|\__ >> (:>__)( >>|/ >> >> Soluciones Geoinformáticas Libres >> http://geotux.tuxfamily.org/ >> http://twitter.com/GeoTux2 >> >> > -- --- |\__ (:>__)( |/ Soluciones Geoinformáticas Libres http://geotux.tuxfamily.org/ http://twitter.com/GeoTux2 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] custom reference system
Thanks Tyler You are right, and thinking a bit about it I found a perfectly appropriate solution with the normal crs Jake From: Tyler Mitchell [mailto:i...@locatepress.com] Sent: Tuesday, August 28, 2012 11:52 AM To: Jake Maier Cc: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] custom reference system On 2012-08-28, at 5:26 AM, Jake Maier wrote: I try to make a blueprint for a stirling engine that I want to build. I think I'll need a custom crs for that. How would I go about it. What would the code look like. Or is it all together a silly idea and I should look for another drawing program to create blueprints? Any opinion and or help with this anyone? Thanks Jake Unless you want to reproject or share the data with others, I doubt there's much reason to define a system. Cool idea for an experiment either way... err I mean stirling engines are a hot idea :) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Embeded layers/groups to 'normal' layers/groups
Hello, I'm having problems with embeded layers in MacOS 10.6.8. The main (master) project does not load and QGIs crashes. This is maybe because I'm trying to load more then 2 external projects with several layers each. I don't get any alert when I build the master project, but once it is saved, closed and reopened the crash happens. That's why embeding can not be a solution to my problem of having several projects, with styles, labels and queries needed to be put together. I know about copying & pasting style but I have lots of layers grouped with lot's of raster images and everything should be loaded one-by-one. I've tried the "Import project" plugin and it crashes too Is there any way transform embeded layers in 'normal' layers? - Julian Bogdani jbogd...@gmail.com http://bradypus.net ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Trouble with overlay in 1.8.0
I have done some more testing and searching. For very simple datasets, it seems that most overlay operations work. The exception is for point datasets. I found Bug #5861 (Vector menu and Sextante -> ftools behaving inconsistently) that seems related. However, with some more complex datasets, I get problems with some line-polygon intersects and polygon-polygon unions. Håvard On 8/29/2012 10:39 AM, Havard Tveite wrote: After moving to QGIS version 1.8.0 (from 1.7.4), I am having trouble with overlay (intersection, union). The intersect function (Vector-> Geoprocessing Tools-> Intersect) gives the following warning: * Warnings: * Feature geometry error: One or more output features ignored due to invalid geometry. * Some output geometries may be missing or invalid. The resulting dataset contains no elements (but has all the attributes from the datasets used in the operation). I have tested with some "normal" and some very simple datasets (point dataset with one point and a polygon dataset with one polygon), and observe the same behaviour for all the cases. I have only tested with Shapefile datasets. I have done most of the testing on Windows XP, but also some testing on Ubuntu 12.04. union seems to have the same problems as intersection. I had no problems with intersection in 1.7.4. Håvard Tveite -- Håvard Tveite Department of Mathematical Sciences and Technology, UMB Drøbakveien 31, POBox 5003, N-1432 Ås, NORWAY Phone: +47 64965483 Fax: +47 64965401 http://www.umb.no/imt/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Qgis 1.8 - Sextante plugin doesn't install - corrupt
Hi I just get qgis in working order without any preset.. I had to delete the .qgis folder under my user documents and settings folder. This deletes all the plugin installed. After that I found a quantumgis registry folder under HKEY_USERS\"your_usersid"\Software\QuantumGIS (your_usersid is an aplhanumerical string identifying your user during login in windows) In this folder you can find many keys that store all the presets for qgis (last visited folders, proxy setting plugin repos ecc ecc) If you delete the whole quantumgis folder you have qgis acting as just installed ;-) (so if you like some plugin repo sign it somewhere - damned me..) -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Qgis-1-8-Sextante-plugin-doesn-t-install-corrupt-tp4997598p4998568.html Sent from the Quantum GIS - 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 1.8 - Sextante plugin doesn't install - corrupt
Am 29.08.12 12:56, schrieb Paolo Cavallini: Il 29/08/2012 12:48, Pietro Rossin ha scritto: Do you know how to completely remove all dirs and settings from my pc that deal with qgis? Hi Pietro, I think the issue is with your user dir, not with the installation. In case you don't know where to look, its: C:\Documents&Steiings\\.qgis on Windows XP C:\users\\.qgis on Windows 7 Just delete or rename the directory *before* installation. Greetings, André Joost ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Qgis 1.8 - Sextante plugin doesn't install - corrupt
Il 29/08/2012 12:48, Pietro Rossin ha scritto: > Do you know how to completely remove all dirs and settings from my pc that > deal with qgis? Hi Pietro, I think the issue is with your user dir, not with the installation. Try to remove it and let us know. All the best. -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Qgis 1.8 - Sextante plugin doesn't install - corrupt
Hello again I have the same plugin installation error also before a fresh complete new installation of Qgis. This happens only on my pc, because some other pc in my company don't have this issue. I completely deleted the osgeo4w installation dir and made a new installation. I saw that qgis still has old presets after installation so it could be that there is some messed information in my somewhere in my machine. Do you know how to completely remove all dirs and settings from my pc that deal with qgis? Thanks Pietro -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Qgis-1-8-Sextante-plugin-doesn-t-install-corrupt-tp4997598p4998556.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] polygons' digitizing direction
Dear All, AFAIK it is a general rule that walking along a polygon's edge in digitizing direction the inside of the polygon is to the right, that means that the polygon's exterior boundary ist to be digitized clockwise (cw) and any hole counter clockwise (ccw). When digitizing polygons in QGIS I can do it either cw or ccw, same for holes. When working in a shape file saving a polygon digitized ccw the boundary is reversed and the polygon thus corrrectly saved. If working in a PostGIS layer the direction is saved as is, i.e. either cw or ccw. Is this on purpose or a bug? Bernhard __ Information from ESET Mail Security, version of virus signature database 7426 (20120829) __ The message was checked by ESET Mail Security. http://www.eset.com ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] 0, null values and color table GRASS/QGIS
-- Message: 3 Date: Tue, 28 Aug 2012 10:45:22 +0200 From: Paolo Cavallini To:qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] 0, null values and color table GRASS/QGIS Message-ID:<503c8522.5050...@faunalia.it> Content-Type: text/plain; charset=ISO-8859-1 Il 28/08/2012 09:24, Patrick Giraudoux ha scritto: Hi, I am using QGIS 1.7.0 Wroclaw (and GRASS 6.4.1 inside). This is old, please upgrade to 1.8. Thanks. -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario Absolutely, right. It works OK in 1.8.0-Lisboa. Thanks. Patrick Le 28/08/2012 09:24, Patrick Giraudoux a écrit : Hi, I am using QGIS 1.7.0 Wroclaw (and GRASS 6.4.1 inside). I have some troubles with map displays in QGIS with 0 and null values. I just want to extract a particular habitat category from a Global Land Cover 2000 raster into a raster of presence/absence (and NULL value for ocean and waterbodies) This makes the following: r.mapcalc "V7_01=if(AsiaGLC2000==7,1,0)" So far so good, I get a raster V7_01 with null values and 1 for pixel of category 7, 0 for the others and null values stay NULL. All is correctly displayed by QGIS. Now, I would like to transform V7_01 into a floating point map, and then use r. neighbors for a neigborhood analysis. r.mapcalc "V7=1.0*V7_01" I get a raster named V7 BUT strangely for any color table, 0 value is considered NULL (transparent) when displayed by QGIS. However, the original NULL values are well kept and distinct in this raster (e.g. NULL pixels are informed as NULL and 0 pixels are 0, respectively, which is correctly displayed within GRASS). An indication about what happen is that the metadata inform that null values(nodata) are -2.14748e+09 in AsiaGLC2000 and V7_01, but become 2.22507e-308 in V7 (so close to 0). Any suggestion welcome, I am stuck... Patrick ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] which elements to consider to improve Qgis Server performances?
I'm testing Qgis Server deeply in these days, with the aim to propose it as the platform to publish a research project. The project is quite heavy. We need to publish lot of layers, some local and some picked from external WMS services, so the qgis_mapserv.fcgi is under heavy load! I'm running it under Apache mod_fcgid. Excluding load balancing, what are the prior elements that could affect the overall performance? I mean, at the level of Apache, of the fcgi module layer, and the qgis_mapserv application itself? Are there good practices on this topic? giovanni ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Trouble with overlay in 1.8.0
After moving to QGIS version 1.8.0 (from 1.7.4), I am having trouble with overlay (intersection, union). The intersect function (Vector-> Geoprocessing Tools-> Intersect) gives the following warning: * Warnings: * Feature geometry error: One or more output features ignored due to invalid geometry. * Some output geometries may be missing or invalid. The resulting dataset contains no elements (but has all the attributes from the datasets used in the operation). I have tested with some "normal" and some very simple datasets (point dataset with one point and a polygon dataset with one polygon), and observe the same behaviour for all the cases. I have only tested with Shapefile datasets. I have done most of the testing on Windows XP, but also some testing on Ubuntu 12.04. union seems to have the same problems as intersection. I had no problems with intersection in 1.7.4. Håvard Tveite -- Håvard Tveite Department of Mathematical Sciences and Technology, UMB Drøbakveien 31, POBox 5003, N-1432 Ås, NORWAY Phone: +47 64965483 Fax: +47 64965401 http://www.umb.no/imt/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Help cutter raster
Hi Lorena, if you want to clip an image by using a mask layer, you must create first that mask layer, which must be a polygon layer. You can do so in Layer->New->New Shapefile Layer. Set for the mask layer the same reference system of the image. If you still have troubles please send to this list a detailed description of the error you get, e.g., a screenshot or the error message. I tried this out in QGIS 1.8.0 and it works. Regards, Germán 2012/8/28 lorena Coelho > Hola, Muchas Gracias. > Voy a intentar explicarme. Estoy usando Quantum Gis 1.8.0 Lisboa. Para > cortar un raster voy a RASTER/EXTRACCIÓN/CLIPPER. entonces se me abre un > ventana que en el medio dice; Modo de corte y tengo dos opciones > por extensión o por capa de mascara. > > Por extensión puedo cortar el raster sin problema pero..por capa de > mascara no estoy pudiendo. > Lo cual no me esta permitiendo realizar cortes irregulares. > > Espero me puedan ayudar...Gracias > > > 2012/8/28 Germán Carrillo > >> Or post your question in Spanish here, I know there is some people who >> would understand, and even if they are not able to solve your doubts, they >> would help you rephrasing your question in English. >> >> >> 2012/8/28 Etienne Tourigny >> >>> Hi I'm sorry but I don't understand your question... you mean that it >>> doesn't work if the raster is a mask? >>> >>> By the way, there is a Spanish list at osgeo, although not specific to >>> qgis >>> >>> http://lists.osgeo.org/pipermail/spanish/ >>> >>> Etienne >>> >>> On Tue, Aug 28, 2012 at 3:39 PM, lorena Coelho >>> wrote: >>> > Hi, thanks for your quick response. The add gdaltools what I have on. >>> In >>> > fact cut a raster if I can, so I can not cut the raster is a mask. >>> That is >>> > asking that the court limit is determined mask. Thanks. Lorena >>> > >>> > >>> > 2012/8/28 Germán Carrillo >>> >> >>> >> Believe it or not, names in 'Spanish' are: >>> Ráster->Extraction->Clipper :) >>> >> (Ráster->Extracción->Cortador/Cortar) >>> >> >>> >> >>> >> 2012/8/28 Etienne Tourigny >>> >>> >>> >>> make sure gdaltools plugins is enabled (plugins->Manage Plugins), >>> then >>> >>> go to Raster->Extraction->clipper. Not sure what the names are in >>> >>> español though. >>> >>> >>> >>> On Tue, Aug 28, 2012 at 12:37 PM, lorena Coelho >>> >>> wrote: >>> >>> > Hello, >>> >>> > I am a magister student in Uruguay. I'm working with QGIS. I can >>> not >>> >>> > cut a >>> >>> > raster mask, can someone help. What is the complement need? I'm >>> using >>> >>> > Quantum GIS 1.8.0 Lisbon >>> >>> > thanks >>> >>> > >>> >>> > >>> >>> > ___ >>> >>> > 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 >>> >> >>> >> >>> >> >>> >> >>> >> -- >>> >> --- >>> >>|\__ >>> >> (:>__)( >>> >>|/ >>> >> >>> >> Soluciones Geoinformáticas Libres >>> >> http://geotux.tuxfamily.org/ >>> >> http://twitter.com/GeoTux2 >>> >> >>> > >>> >> >> >> >> -- >> --- >>|\__ >> (:>__)( >>|/ >> >> Soluciones Geoinformáticas Libres >> http://geotux.tuxfamily.org/ >> http://twitter.com/GeoTux2 >> >> > -- --- |\__ (:>__)( |/ Soluciones Geoinformáticas Libres http://geotux.tuxfamily.org/ http://twitter.com/GeoTux2 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
