Re: [Qgis-user] Extract raster cell-value statistics (min, max, count, sum) within a polygone
Hi Johan, On Wed, 22. Apr 2015 at 14:25:32 +0200, Johan Nilsson wrote: Hi. Nyall. Asked for advice to install nightly build on http://lists.osgeo.org/mailman/options/ubuntu, because can't find anything on google, to install nighly build, only on precise (12.04) not on trusty (14.04) See http://qgis.org/de/site/forusers/alldownloads.html#debian-ubuntu So you probably want to add deb http://qgis.org/debian-nightly trusty main to your /etc/apt/sources.list and do apt-get update apt-get install qgis as root to install qgis. Jürgen -- Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31 Dipl.-Inf. (FH) Rheinstraße 13 Fax. +49-4931-918175-50 Software Engineer D-26506 Norden http://www.norbit.de QGIS release manager (PSC) GermanyIRC: jef on FreeNode signature.asc Description: Digital signature ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Solved: Convert Easting/Northing to Lat/Lon
Thank you Chris, that did it (though I had to find EPSG:4326 - in WG 84) ;-) Solved. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] OSM download error
Using QGis 2.0.1. on Ubuntu. It has been discussed several times, yet, I cannot figure out how to download open street maps layer for the sake of using the features (roads, parks etc.). instead, after choosing one of the three options (loading from canvas, manual) the download does not succeed. Anyone who can help me out? ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] GDAL Fill nodata Algorithm
Hello, does someone know if you can use any GDAL-supported raster layer with the Processing Fill nodata Algorithm? Kinde regards, Larissa ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] OSM download error
You can use the QuickOSM plugin. It deals with the overpass API. You can specify which feature you want. QuickOSM can also open an external OSM file if you want to get all the columns available. From the menu Add vector layer, it's not possible. If you don't mind about columns and specific feature, have a look to the OSM downloader plugin. 2015-04-22 16:20 GMT+02:00 Simon Lange simonlang...@web.de: Using QGis 2.0.1. on Ubuntu. It has been discussed several times, yet, I cannot figure out how to download open street maps layer for the sake of using the features (roads, parks etc.). instead, after choosing one of the three options (loading from canvas, manual) the download does not succeed. Anyone who can help me out? ___ 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] OSM download error
On Wed, Apr 22, 2015 at 7:20 AM, Simon Lange simonlang...@web.de wrote: It has been discussed several times, yet, I cannot figure out how to download open street maps layer for the sake of using the features (roads, parks etc.). instead, after choosing one of the three options (loading from canvas, manual) the download does not succeed. Anyone who can help me out? I'm on a later version of QGIS which can download OSM data. A couple of tips. Make sure the area you are selecting is not too large. Try a smaller area. I believe the api max is .5 degrees by .5 degrees. Second, choose a file name. If the download is successful you should have a [yourfile].osm saved. The .osm file can be opened with the Add Vector Layer control. As an alternative, you can install JOSM [1] to download the area. If the area you want is too big for a single download, download a bunch of smaller areas until you have what you need. Then save the data layer to a file with a .osm extension. Hope that helps. Clifford [1] josm.openstreetmap.de -- @osm_seattle osm_seattle.snowandsnow.us OpenStreetMap: Maps with a human touch ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] GDAL Fill nodata Algorithm
Hi, I believe so but I usually use thenbsp; .tiff format.nbsp; Just make sure the null data value is specified in the raster. You can do that under the save as. Specifying additional null valuenbsp;nbsp; in the layer properties does not work. Nicolas Cadieux M.Sc. Les Entreprises Arch#233;otec inc.#160; 8548, rue Saint-Denis Montr#233;al H2P 2H2 T#233;l#233;phone:#160;514.381.5112 #160;Fax: 514.381.4995 www.archeotec.ca On Apr 22, 2015 9:50 AM, quot;Larissa Junek [via OSGeo.org]quot; lt;ml-node+s1560n5202470...@n6.nabble.comgt; wrote: Hello, does someone know if you can use any GDAL-supported raster layer with the Processing Fill nodata Algorithm? Kinde regards, Larissa ___ Qgis-user mailing list [hidden email] http://lists.osgeo.org/mailman/listinfo/qgis-user If you reply to this email, your message will be added to the discussion below: http://osgeo-org.1560.x6.nabble.com/GDAL-Fill-nodata-Algorithm-tp5202470.html To start a new topic under Quantum GIS - User, email ml-node#43;s1560n4125267h38#64;n6.nabble.com To unsubscribe from Quantum GIS - User, click here . NAML -- View this message in context: http://osgeo-org.1560.x6.nabble.com/GDAL-Fill-nodata-Algorithm-tp5202470p5202536.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] After upgrade none of the TIFF imagery is visible
I was using QGIS 1.8 and upgraded to 2.8.1. When I open an old Project, the image layers are present in the list on the left, but none of the imagery is visible on the map. Not sure how to bring the imagery back. Also, I'm overwhelmed by all of the programs that were installed: Grass, Desktop, Browser, SAGA. Is there a brief description explaining which to use under various circumstances? Thanks! Jon ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] LasTools use in QGIS 2.8.1
I'm new in the QGIS world, and I have to convert a shp point file in las; I have seen that the Lastools is embedded in QGIS 2.8.1 in the folder C:Program FilesQGIS Wienappsqgispythonpluginsprocessingalgslidar; in the Options under Processing menu is required, in the file browser dialog, a file instead of a folder as indicated, in the option program dialog, and thus I don't know how to continue I'm thankful for any Your hint in this matter Regards Luigi Connetti gratis il mondo con la nuova indoona: hai la chat, le chiamate, le video chiamate e persino le chiamate di gruppo. E chiami gratis anche i numeri fissi e mobili nel mondo! Scarica subito l’app Vai su https://www.indoona.com/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS 1.8 / 2.2 load Raster with .wld-File
Hello, I georeferenced an image with the georeferencing-plugin by using linear with world file creation. After that I wanted to display the image with the correct angle etc., but QGIS projects it as normal. When loading it into ArcGIS it takes the world file to rotate it. Is there an option for raster import I have to check? Thanks! Richard ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] trigonometric angle in aspect maps
Hello, I look for a GIS expert who can give a good description of the trigonometric angle that can be produced when using the GDAL aspect algorithm in Processing. I need this description for the user manual 2.8.. Kind regards, Larissa ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] trigonometric angle in aspect maps
Le mercredi 22 avril 2015 12:59:53, Larissa Junek a écrit : Hello, I look for a GIS expert who can give a good description of the trigonometric angle that can be produced when using the GDAL aspect algorithm in Processing. I need this description for the user manual 2.8.. Larissa, from the GDAL manual: http://gdal.org/gdaldem.html aspect This command outputs a 32-bit float raster with values between 0° and 360° representing the azimuth that slopes are facing. The definition of the azimuth is such that : 0° means that the slope is facing the North, 90° it's facing the East, 180° it's facing the South and 270° it's facing the West (provided that the top of your input raster is north oriented). The aspect value - is used as the nodata value to indicate undefined aspect in flat areas with slope=0. The following specifics options are available : -trigonometric: return trigonometric angle instead of azimuth. Thus 0° means East, 90° North, 180° West, 270° South -zero_for_flat: return 0 for flat areas with slope=0, instead of - By using those 2 options, the aspect returned by gdaldem aspect should be identical to the one of GRASS r.slope.aspect. Otherwise, it's identical to the one of Matthew Perry's aspect.cpp utility. Even -- Spatialys - Geospatial professional services http://www.spatialys.com ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Convert Easting/Northing to Lat/Lon
Hello, I may be totally stupid, but I have tried to find information, but all I do fails. Upon their kind referral I have downloaded the Scottish Government Data Zone centroids 2011 from http://sedsh127.sedsh.gov.uk/Atom_data/ScotGov/StatisticalUnits/subfeed_DataZoneCent2011.atom.en.xml I have loaded the file into QGIS (first Brighton, meanwhile Wien) and was able to add the OpenStreetMap layer. Then I tried to export the data for using it with a software that uses digital lat/lon, but all I get is Eastings and Northings. So I read I may have to change the CRS, tried with WGS84 Mercator, but that results in the same. I also tried to toggle edit and recalculate, but the result when adding geometry $x is again the Eastings/Northings (no matter which of the CRS I use), not the expected longitude/latitude. I have installed MMQGIS and plugins upon research on the web to no help. So yesterday I went three hours (oneway) to a local OSM stammtisch, where I was told to use PostgreSQL for the task - tried and failed (I am used to use MySQL, might be my fault). I was also told, more than half the map-experts wouldn't know how to do this ;-) Unfortunately I need those data quickly. Anyone able to help me, possibly also referring me to an existing howto I did not find for a step-by-step to convert that data and export to CSV that the CSV contains lat/lon as needed? If this is not the proper mailing list to address QGIS-questions, please also advise. Any advise, even reference to somewhere else IS appreciated! Thank you for any possible help! Juergen * preferably a descriptive title for your email Convert Easting/Northing to Lat/Lon * which Operating System and version Windows 8.1 * which QGIS version you used at that moment (exact) QGIS 2.8.1 Wien * how you installed it (osgeo4w? standalone-installer? own build?) Installer from Website * at what time did it break (reinstall, new install, system update, project??) Did not break but doesn't do what I want ;-) * what exactly is the error (if possible: screendump, stacktrace, copy of errortext) Unable to convert Easting/Northing to Lat/Lon. See above. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS on rollApp
Very cool. Thanks for sharing. It would be interesting to learn more from whoever put this together. What's the process, level of effort, long term plans, support, etc. From: Larry Shaffer lar...@dakotacarto.com To: QGIS Developer List qgis-develo...@lists.osgeo.org; QGIS User List qgis-user@lists.osgeo.org Sent: Tuesday, April 21, 2015 12:16 PM Subject: [Qgis-user] QGIS on rollApp Hi, I don't normally cross-post to dev/user lists (sorry for the extra noise), but I found this to be quite an interesting advancement for QGIS. https://www.rollapp.com/app/qgis QGIS in the cloud, and almost fully functional, e.g. Python, etc. Seems browser's filesystem integration is broken (maybe it needs a cloud drive attached). Who did this awesome port? Was it rollApp folks themselves? Regards, Larry Shaffer Dakota Cartography Black Hills, South Dakota ___ 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] FGDC Geology Symbology for QGIS
Thank you, Stefan, I expected the import function for the *.xml files also in the layer style setting dialog. It's in project settings, now I know. However, I have format problems related to the various line definitions for folds, faults etc. I see a lot of question marks. Is there something I have to do in addition? Torsten Am 22-Apr-2015 02:55:47 +0200 schrieb s.rev...@bigpond.com: From: Torsten Lange Hi, 1. Stefan, thank you for uploading the symbology. 2. A first time load symbology question: How do I import a new symbolgy or in what folder I have to put it? Thanks, Torsten Hello Torsten, You can import new symbology via the Style Manager, using the Share button and then the Import choice. That allows you to navigate to wherever you put the various relevant .xml files (in the FGDC geology case, these are the contacts.xml, faults.xml, folds.xml, and joints.xml): it does not really matter where you keep these files (my personal preference is to have a dedicated qgis_projects folder in which I can assemble and organise projects as well as any support files I feel I may need). Once the symbology has been imported, it will be available for any project you care to pursue. Best wishes, Stefan From: Lester Anderson Hi Stefan, Thanks for compiling the symbology managed to load all fine. The only issue I spotted is with dashed or dotted line types. These do not seem to contain the simple line component at the base (for line type etc) and so these dashed/dotted versions show the markers on a blank space and not following the line as when one adds a marker to a line. Not a big deal. But thought it worth mentioning. Lester Hello Lester, If I understand you correctly, then the reason you do not see dashed or dotted lines is because they are too fine to be visibly rendered by qgis. When you generate a map, these lines will be visible in the pdf, tiff, or other output you chose. When compiling the symbology, I discovered that qgis is not sufficiently precise with the thickness, lengths and separations between dashes. As a result, I defined a number of svg lines so that the distances and separations defined in the FGDC standard could be implemented. That is also why I have included the various .xml files: these combine the relevant .svg symbols and line segments into the hopefully correct FGDC symbol. Best wishes, Stefan ___ 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] Convert Easting/Northing to Lat/Lon
Works for me. Open in QGIS which picks up the BNG no problem. LayerSave As Rename Assign EPSG:4326 (unprojected/llonlat/geographic) - let's agree to leave Mercator out of it Attribute table Update Easting with Geometry $x for long Update Northing with Geometry $y for lat Chris Berens www.mapland.co.za +27 (0)82 567 9322 On 22 April 2015 at 13:07, Jürgen qgis...@checkin.com wrote: Hello, I may be totally stupid, but I have tried to find information, but all I do fails. Upon their kind referral I have downloaded the Scottish Government Data Zone centroids 2011 from http://sedsh127.sedsh.gov.uk/Atom_data/ScotGov/StatisticalUnits/subfeed_DataZoneCent2011.atom.en.xml I have loaded the file into QGIS (first Brighton, meanwhile Wien) and was able to add the OpenStreetMap layer. Then I tried to export the data for using it with a software that uses digital lat/lon, but all I get is Eastings and Northings. So I read I may have to change the CRS, tried with WGS84 Mercator, but that results in the same. I also tried to toggle edit and recalculate, but the result when adding geometry $x is again the Eastings/Northings (no matter which of the CRS I use), not the expected longitude/latitude. I have installed MMQGIS and plugins upon research on the web to no help. So yesterday I went three hours (oneway) to a local OSM stammtisch, where I was told to use PostgreSQL for the task - tried and failed (I am used to use MySQL, might be my fault). I was also told, more than half the map-experts wouldn't know how to do this ;-) Unfortunately I need those data quickly. Anyone able to help me, possibly also referring me to an existing howto I did not find for a step-by-step to convert that data and export to CSV that the CSV contains lat/lon as needed? If this is not the proper mailing list to address QGIS-questions, please also advise. Any advise, even reference to somewhere else IS appreciated! Thank you for any possible help! Juergen preferably a descriptive title for your email Convert Easting/Northing to Lat/Lon which Operating System and version Windows 8.1 which QGIS version you used at that moment (exact) QGIS 2.8.1 Wien how you installed it (osgeo4w? standalone-installer? own build?) Installer from Website at what time did it break (reinstall, new install, system update, project??) Did not break but doesn't do what I want ;-) what exactly is the error (if possible: screendump, stacktrace, copy of errortext) Unable to convert Easting/Northing to Lat/Lon. See above. ___ 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] Extract raster cell-value statistics (min, max, count, sum) within a polygone
Hi. Nyall. Asked for advice to install nightly build on http://lists.osgeo.org/mailman/options/ubuntu, because can't find anything on google, to install nighly build, only on precise (12.04) not on trusty (14.04) 2015-04-21 0:38 GMT+02:00 Nyall Dawson nyall.daw...@gmail.com: On 19 April 2015 at 19:34, Johan Nilsson joni8...@gmail.com wrote: Zonal statistics work well to extract, numers of cells(counts) , sum of the value (sum) and also average (mean) But I want the minimum AND max-value and also standard error, if possible. Is there another plugin or a tutorial how it may bee done in another way. Try updating to a nightly development version of QGIS. A bunch of extra stats were just added yesterday to zonal stats, including min, max, median, stdev, etc. [1] Nyall [1] https://github.com/qgis/QGIS/commit/ee7b4d2539337f937aec9efae9ad603f8e2014ff ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
