Hi All, As mentioned previously in this post (I think) there is a free program that combines Landsat 8 bands and pansharpens them as well. The program creates a GeoTiff file which can be read by QGIS. See this link "http://www.geosage.com/highview/features_landsat8.html";. All you need to do is download the Landsat 8 data from the USGS and unzip it.
Regards Grant -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, 14 November 2014 4:01 AM To: [email protected] Subject: Qgis-user Digest, Vol 105, Issue 33 Send Qgis-user mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit http://lists.osgeo.org/mailman/listinfo/qgis-user or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of Qgis-user digest..." Today's Topics: 1. Re: Raster postGIS problema visualizar en QGIS (Mike Treglia) 2. Re: Stacking Landsat Bands (Carl) 3. Re: Stacking Landsat Bands (Eric Goddard) 4. Re: Stacking Landsat Bands (Andreas Neumann) 5. Re: Drawing over lapping polygons from postgis vector data table. (Andre Joost) 6. Duplicating a vector layer (Adrian Beasley) 7. Re: Stacking Landsat Bands (Carl) 8. Re: Paths in Processing Options not updated after upgrade to 2.6 (J?rgen E. Fischer) 9. Re: Duplicating a vector layer (Randal Hale) 10. Re: Raster postGIS problema visualizar en QGIS (Juan Miguel Requena) ---------------------------------------------------------------------- Message: 1 Date: Thu, 13 Nov 2014 07:54:54 -0600 From: Mike Treglia <[email protected]> To: Juan Miguel Requena <[email protected]> Cc: QGIS User <[email protected]> Subject: Re: [Qgis-user] Raster postGIS problema visualizar en QGIS Message-ID: <[email protected]> Content-Type: text/plain; charset="utf-8" Is it a large raster? I don't have experience with remote postgis data, but I know that if I'm dealing with very large postgis rasters locally, it takes some time to render. Hope that helps... I don't have a ton of experience with postgis, so I'm not sure what else could be going on. > On Nov 13, 2014, at 7:45 AM, Juan Miguel Requena <[email protected]> wrote: > > Hello, some information more, I can visualize shapes from the same data base. > > Thank you. > > Juanmi > > 2014-11-13 14:42 GMT+01:00 Juan Miguel Requena <[email protected]>: >> Hello again, now I have a new problem. I connect into the data base from other pc without problems (via DB Manager plugin) but when I want to visualize the raster I can not. However, I can see the info and the table of the file but not the preliminar view. >> >> Any idea?? thank in advance. >> >> Juanmi. >> >> 2014-11-13 10:46 GMT+01:00 Juan Miguel Requena <[email protected]>: >>> Hello Michael, thank you very much for your reply. My problem has been solved. Indeed, I was trying to import the postGIS raster from the wrong way, i.e., 'Add PostGIS layer', and when I load it from DB Manager plugin there is no problem, it was very easy but it was my first time. Thank you again. >>> >>> Best regards. >>> >>> Juanmi. >>> >>> 2014-11-13 4:35 GMT+01:00 Michael Treglia <[email protected]>: >>>> Hi Juan, >>>> >>>> To display a PostGIS Raster in QGIS, I think you need to use the Database Manager plugin ("DB Manager"). If you have it installed/activated, you would access it from the "Database" tab in the menu bar at top. (I'm on QGIS 2.6 and 2.4, but I'd imagine its the same for 2.0). >>>> >>>> Is that what you're using to open the PostGIS Raster? Or were you trying to just use the normal "Add PostGIS layer" method? >>>> >>>> If that's not it, try to give more details of the steps youre taking to access the PostGIS layer in QGIS. >>>> >>>> Hope that helps, >>>> Mike >>>> >>>>> On Wed, Nov 12, 2014 at 3:45 PM, Juan Miguel Requena <[email protected]> wrote: >>>>> Hello Alexandre, sorry. >>>>> >>>>> I have used the postGIS command 'raster2pgsql' to import a geotiff file into a postgres data base.The process was successfully finished. Both columns 'rid' and 'rast' were successfully created but when I connect QGIS 2.0 to the data base and load the table, the software is unable to recognize the data type and the geometry type, so that I can not visualize the file and the attribute table has not the rast column. >>>>> >>>>> Thank you in advance for your help >>>>> >>>>> Juanmi >>>>> >>>>> El 12 de noviembre de 2014, 20:51, Alexandre Neto <[email protected]> escribi?: >>>>> >>>>>> Hello Juan, can I ask you to write your question in English? >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Alexandre Neto >>>>>> >>>>>> Em 12/11/2014 16:25, "Juan Miguel Requena" <[email protected]> escreveu: >>>>>>> Hola, estoy utilizando el comando raster2pgsql de postGIS para importar un archivo geotif a una base de datos (postgresql). Todo el proceso lo ejecuta correctamente. Crea los campos 'rid' y 'rast' bien. Pero al conectarme a la base de datos con QGIS, la tabla postgres correspondiente viene como 'Tipo de dato' : Nada y 'Tipo espacial' : Ninguna geometr?a. Cuando a?ado el archivo y visualizo la tabla de atributos solo existe el campo 'rid' pero no el 'rast'. >>>>>>> >>>>>>> Alguien puede echarme un mano, muchas gracias por adelantado. >>>>>>> >>>>>>> Juanmi. >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Qgis-user mailing list >>>>>>> [email protected] >>>>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user >>>>> >>>>> >>>>> _______________________________________________ >>>>> Qgis-user mailing list >>>>> [email protected] >>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20141113/1aaa9db7/at tachment-0001.html> ------------------------------ Message: 2 Date: Thu, 13 Nov 2014 06:31:30 -0800 (PST) From: Carl <[email protected]> To: [email protected] Subject: Re: [Qgis-user] Stacking Landsat Bands Message-ID: <[email protected]> Content-Type: text/plain; charset=UTF-8 Jonathan I'm not familiar with the Orfeo tool but I use the SAGA Rgb Composite tool under SAGA\Grid-Visualization\ to stack Landsat scenes. It limits you to three bands which is a bummer, but works well. The tool output is rescaled to 8-bit, so you shouldn't use the stacked imagery for change analysis later, but it?s great for visualization. The GRASS Raster tool r.composite will also stack, but the SAGA tool seems to handle Landsat 7 SLC-off data gaps better. I?m new to QGIS, so some of the above might be wrong... Carl -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Stacking-Landsat-Bands-tp5172804p5172838 .html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ------------------------------ Message: 3 Date: Thu, 13 Nov 2014 09:12:40 -0600 From: Eric Goddard <[email protected]> To: Carl <[email protected]> Cc: qgis-user <[email protected]> Subject: Re: [Qgis-user] Stacking Landsat Bands Message-ID: <camm2+yrh6jebr41cnrpdqobh4wjbycvo4-+kdqus2sptspa...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Hi Jonathan, Did you try the GDAL merge tool (Raster -> Miscellaneous -> Merge)? If you check the layer stack box it will create a multiband image with any number of input files. Eric On Thu, Nov 13, 2014 at 8:31 AM, Carl <[email protected]> wrote: > Jonathan > I'm not familiar with the Orfeo tool but I use the SAGA Rgb Composite > tool under SAGA\Grid-Visualization\ to stack Landsat scenes. It limits > you to three bands which is a bummer, but works well. The tool output > is rescaled to 8-bit, so you shouldn't use the stacked imagery for > change analysis later, but it?s great for visualization. > The GRASS Raster tool r.composite will also stack, but the SAGA tool > seems to handle Landsat 7 SLC-off data gaps better. > I?m new to QGIS, so some of the above might be wrong... > Carl > > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Stacking-Landsat-Bands-tp5172804p5 > 172838.html Sent from the Quantum GIS - User mailing list archive at > Nabble.com. > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user ------------------------------ Message: 4 Date: Thu, 13 Nov 2014 16:25:17 +0100 From: Andreas Neumann <[email protected]> To: [email protected] Subject: Re: [Qgis-user] Stacking Landsat Bands Message-ID: <[email protected]> Content-Type: text/plain; charset=UTF-8; format=flowed Hi, If it is just for display you can display the landsat image in QGIS right away. You can freely assign selected bands to rgb channels in the "Style" tab of QGIS. So no need to recalculate images ... Andreas Am 2014-11-13 16:12, schrieb Eric Goddard: > Hi Jonathan, Did you try the GDAL merge tool (Raster -> Miscellaneous > -> Merge)? If you check the layer stack box it will create a multiband > image with any number of input files. > > Eric > > On Thu, Nov 13, 2014 at 8:31 AM, Carl <[email protected]> wrote: >> Jonathan >> I'm not familiar with the Orfeo tool but I use the SAGA Rgb Composite >> tool under SAGA\Grid-Visualization\ to stack Landsat scenes. It >> limits you to three bands which is a bummer, but works well. The tool >> output is rescaled to 8-bit, so you shouldn't use the stacked imagery >> for change analysis later, but it?s great for visualization. >> The GRASS Raster tool r.composite will also stack, but the SAGA tool >> seems to handle Landsat 7 SLC-off data gaps better. >> I?m new to QGIS, so some of the above might be wrong... >> Carl >> >> >> >> >> -- >> View this message in context: >> http://osgeo-org.1560.x6.nabble.com/Stacking-Landsat-Bands-tp5172804p >> 5172838.html Sent from the Quantum GIS - User mailing list archive at >> Nabble.com. >> _______________________________________________ >> Qgis-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user ------------------------------ Message: 5 Date: Thu, 13 Nov 2014 17:36:14 +0100 From: Andre Joost <[email protected]> To: [email protected] Subject: Re: [Qgis-user] Drawing over lapping polygons from postgis vector data table. Message-ID: <[email protected]> Content-Type: text/plain; charset=windows-1252; format=flowed Am 13.11.2014 um 10:34 schrieb Dave Potts: > Hi > > I am trying to display the results of a spatial analysis, the return > form is a set of polygons of increasing size. All located on top of > each other. I want to draw it, so it looks like a target, but all > that happens is that the largest polygon is drawn last which blocks > out all of the others. Is there an easy way of display the result? > > I can not see any way of using an outside function so that the largest > polygon would be drawn firsts with the next polygon drawn on top of it. > > Since its an import from a postgis table every does have an unique id. > In Layer Properties, Style tab you can use a categorized or graduated style based on the unique id, or some other field of the attribute table. Then click on the "Advanced" button beneath the symbol table, and select "Symbol levels". If you check "Enable symbol levels", you can predefine in which order your symbols should be rendered. You can even set all colours equal or a fill style "No Brush" if you only want to see the contours. HTH, Andr? Joost ------------------------------ Message: 6 Date: Thu, 13 Nov 2014 16:38:56 +0000 From: Adrian Beasley <[email protected]> To: "[email protected]" <[email protected]> Subject: [Qgis-user] Duplicating a vector layer Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1" I am new to QGIS, still very much learning how to use it. What I wish to do is generate a number of similar vector layers, to be able to generate slightly different maps from them. The obvious way would seem to be to duplicate an existing layer, renaming the new copy, and editing it. But this seems not to produce a new, distinct layer, as making changes to either the original or the new layer causes the same changes in both. I can find no mention of this facility in the user guide nor in the training documentation. Can anyone help? Thanks in anticipation. Adrian Beasley -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20141113/aea8a7ca/at tachment-0001.html> ------------------------------ Message: 7 Date: Thu, 13 Nov 2014 09:07:45 -0800 (PST) From: Carl <[email protected]> To: [email protected] Subject: Re: [Qgis-user] Stacking Landsat Bands Message-ID: <[email protected]> Content-Type: text/plain; charset=us-ascii Thanks Eric, That is a better tool than what I was using (I like to stack all 7 bands). Carl -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Stacking-Landsat-Bands-tp5172804p5172874 .html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ------------------------------ Message: 8 Date: Thu, 13 Nov 2014 18:08:20 +0100 From: J?rgen E. Fischer <[email protected]> To: [email protected] Subject: Re: [Qgis-user] Paths in Processing Options not updated after upgrade to 2.6 Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1" Hi Victor, On Wed, 12. Nov 2014 at 20:41:26 +0100, Victor Olaya wrote: > Once the paths are set, a new install of Processing wont change them. > PAths are set only the first time, in case they were not set before. > Maybe we should implement a mechanism for that, assuming the install > path will change between QGIS versions, having a separate set of > options for each Processing version Only if GRASS (or other third party things processing is using) comes with QGIS. Common on Windows and OSX, but not on Linux. 2014-11-10 19:33 GMT+01:00 Carl <[email protected]>: > I tried deleting my .qgis folder and reinstalling, but that didn't > help. I reset the paths manually in Processing Options and that did > the trick, but I was wondering if there was a way to avoid going through that process. > Thanks, > Carl On Windows the settings are saved in the registry (HKEY_CURRENT_USER\Software\QGIS\QGIS2) and on Linux (also OSX?) in the user's home directory (~/.config/QGIS/QGIS2.conf). IOW removing ~/.qgis won't reset the settings. J?rgen -- J?rgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31 Dipl.-Inf. (FH) Rheinstra?e 13 Fax. +49-4931-918175-50 Software Engineer D-26506 Norden http://www.norbit.de QGIS release manager (PSC) Germany IRC: jef on FreeNode -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 827 bytes Desc: Digital signature URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20141113/7197e687/at tachment-0001.pgp> ------------------------------ Message: 9 Date: Thu, 13 Nov 2014 12:11:03 -0500 From: Randal Hale <[email protected]> To: Adrian Beasley <[email protected]>, "[email protected]" <[email protected]> Subject: Re: [Qgis-user] Duplicating a vector layer Message-ID: <[email protected]> Content-Type: text/plain; charset="windows-1252"; Format="flowed" Probably the easiest thing for you to do is to right click on the layer and go to "save as". That will save/export your current layer as a new one and allow the edits you want to make. All you would need to do is add it to you qgis session. Hope that helps, Randy On 11/13/2014 11:38 AM, Adrian Beasley wrote: > I am new to QGIS, still very much learning how to use it. > > What I wish to do is generate a number of similar vector layers, to be > able to generate slightly different maps from them. The obvious way > would seem to be to duplicate an existing layer, renaming the new > copy, and editing it. But this seems not to produce a new, distinct > layer, as making changes to either the original or the new layer > causes the same changes in both. > > I can find no mention of this facility in the user guide nor in the > training documentation. Can anyone help? > > Thanks in anticipation. > > Adrian Beasley > > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user -- ----------------- 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/spatial-connect -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20141113/85f3d0b3/at tachment-0001.html> ------------------------------ Message: 10 Date: Thu, 13 Nov 2014 18:43:43 +0100 From: Juan Miguel Requena <[email protected]> To: Mike Treglia <[email protected]> Cc: QGIS User <[email protected]> Subject: Re: [Qgis-user] Raster postGIS problema visualizar en QGIS Message-ID: <CAHDzixAeXkH7YRv+dKid=xv7q1z+ck1sjy1_2nm8e5gcffu...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi Mike, I agree, I think that it is a problem related to the file size because QGIS does not report any failure, just takes too. I am going to try with another smaller file. Thank you. Juanmi. 2014-11-13 14:54 GMT+01:00 Mike Treglia <[email protected]>: > Is it a large raster? I don't have experience with remote postgis > data, but I know that if I'm dealing with very large postgis rasters > locally, it takes some time to render. > > Hope that helps... I don't have a ton of experience with postgis, so > I'm not sure what else could be going on. > > > > On Nov 13, 2014, at 7:45 AM, Juan Miguel Requena > <[email protected]> > wrote: > > Hello, some information more, I can visualize shapes from the same > data base. > > Thank you. > > Juanmi > > 2014-11-13 14:42 GMT+01:00 Juan Miguel Requena <[email protected]>: > >> Hello again, now I have a new problem. I connect into the data base >> from other pc without problems (via DB Manager plugin) but when I >> want to visualize the raster I can not. However, I can see the info >> and the table of the file but not the preliminar view. >> >> Any idea?? thank in advance. >> >> Juanmi. >> >> 2014-11-13 10:46 GMT+01:00 Juan Miguel Requena <[email protected]>: >> >>> Hello Michael, thank you very much for your reply. My problem has >>> been solved. Indeed, I was trying to import the postGIS raster from >>> the wrong way, i.e., 'Add PostGIS layer', and when I load it from DB >>> Manager plugin there is no problem, it was very easy but it was my >>> first time. Thank you again. >>> >>> Best regards. >>> >>> Juanmi. >>> >>> 2014-11-13 4:35 GMT+01:00 Michael Treglia <[email protected]>: >>> >>>> Hi Juan, >>>> >>>> To display a PostGIS Raster in QGIS, I think you need to use the >>>> Database Manager plugin ("DB Manager"). If you have it installed/activated, >>>> you would access it from the "Database" tab in the menu bar at top. (I'm >>>> on QGIS 2.6 and 2.4, but I'd imagine its the same for 2.0). >>>> >>>> Is that what you're using to open the PostGIS Raster? Or were you >>>> trying to just use the normal "Add PostGIS layer" method? >>>> >>>> If that's not it, try to give more details of the steps youre >>>> taking to access the PostGIS layer in QGIS. >>>> >>>> Hope that helps, >>>> Mike >>>> >>>> On Wed, Nov 12, 2014 at 3:45 PM, Juan Miguel Requena < >>>> [email protected]> wrote: >>>> >>>>> Hello Alexandre, sorry. >>>>> >>>>> I have used the postGIS command 'raster2pgsql' to import a geotiff >>>>> file into a postgres data base.The process was successfully >>>>> finished. Both columns 'rid' and 'rast' were successfully created >>>>> but when I connect QGIS >>>>> 2.0 to the data base and load the table, the software is unable to >>>>> recognize the data type and the geometry type, so that I can not >>>>> visualize the file and the attribute table has not the rast column. >>>>> >>>>> Thank you in advance for your help >>>>> >>>>> Juanmi >>>>> >>>>> El 12 de noviembre de 2014, 20:51, Alexandre Neto < >>>>> [email protected]> escribi?: >>>>> >>>>> Hello Juan, can I ask you to write your question in English? >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Alexandre Neto >>>>>> Em 12/11/2014 16:25, "Juan Miguel Requena" >>>>>> <[email protected]> >>>>>> escreveu: >>>>>> >>>>>>> Hola, estoy utilizando el comando raster2pgsql de postGIS para >>>>>>> importar un archivo geotif a una base de datos (postgresql). >>>>>>> Todo el proceso lo ejecuta correctamente. Crea los campos 'rid' >>>>>>> y 'rast' bien. Pero al conectarme a la base de datos con QGIS, >>>>>>> la tabla postgres correspondiente viene como 'Tipo de dato' : Nada y 'Tipo espacial' : >>>>>>> Ninguna geometr?a. Cuando a?ado el archivo y visualizo la tabla >>>>>>> de atributos solo existe el campo 'rid' pero no el 'rast'. >>>>>>> >>>>>>> Alguien puede echarme un mano, muchas gracias por adelantado. >>>>>>> >>>>>>> Juanmi. >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Qgis-user mailing list >>>>>>> [email protected] >>>>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user >>>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> Qgis-user mailing list >>>>> [email protected] >>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user >>>>> >>>> >>>> >>> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20141113/1c161c8e/at tachment-0001.html> ------------------------------ _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user End of Qgis-user Digest, Vol 105, Issue 33 ****************************************** _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
