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The problem only occurs if you re-open the modified image that Georeferencer saved as a geotiff, rather than opening the original (unmodified, not georeferenced) image file used initially. There are …

In QGIS, I am getting an error message every time I edit a node. Also, there is a lot of lag in performance. … I saved those layers as SHP files (resetting the projection to GDA94) to see if QGIS works better with SHP. And it did, for a few hours. Now the error messages are back. What is wrong? …

(QGIS 2.6, Windows 64 bit). In Georeferencer, I create a number of GCPs (i.e. control points) by referencing to objects in the map canvas. … However, they do appear correctly on the map canvas (the main QGIS screen). In the Georeferencer window, they have in fact displayed, but half a world away to the south. …

I want to read and copypaste the error log for the crashes I am experiencing in QGIS 2.0. The error I am getting freezes QGIS so I have to ctrl-alt-del. … When I re-open it, the log message panel has reset to zero (QGIS starting, etc), so all the transform error messages I want are gone. Are the older log messages written to disk somewhere? …

While I could make a jpeg of the cadastral regions and drape that (never done it in QGIS, but I think you can call GRASS to do it), is there a way to directly drape and hillshade the vectors? … The screenshot below provides me with a solution to my initial question, "is there a way to hillshade vector polygons with a DEM in QGIS". …

The QGIS Numerical Vertex Edit plug-in used to work fine, but stopped working for me around about QGIS 2.6. I now use QGIS 2.8.1 Windows 64 bit. …

In QGIS, the Georeferencer tool found under the Raster menu is the way to properly register an aerial photograph (or a scanned map, etc.) to your GIS mapping. Georeferencer is not automatic. …

I want to give feedback to the developer of a non-core QGIS plugin. …

I am new to QGIS, and this is a very basic question. I made a new polygon layer, to trace cadastral boundaries off a raster map. I want the polygon nodes on adjoining acreages to snap together. …

To close this off. I'll provide my own answer as per commentator's suggestion. To recap, I could not get nodes on adjacent polygons to snap together when I hovered one node over the other. It turns o …

In QGIS, I want to make polygons from a set of intersecting lines. … I have 64-bit QGIS 2.01 installed to Windows 7 from the installer package, QGIS-OSGeo4W-2.0.1-3-Setup-x86_64.exe. …

If neither these processes are possible, can someone suggest another workflow to achieve the same thing within QGIS, or else confirm that QGIS is unable to do this. … Polygons created by QGIS ‘Lines to polygon’ command …

Open your command line terminal (Ctrl + Alt + T), and then type sudo apt-get update && sudo apt-get install qgis python-qgis or if you want to install Grass as well, sudo apt-get update && sudo apt-get … install qgis python-qgis qgis-plugin-grass …

I cannot get QGIS to recognise my SRTM geotiff as having any grayscale elevation data. … The screenshot from QGIS further below, where I have opened the same geotiff file and checked the properties histogram, shows that none of this elevation data is apparently recognised by QGIS. …

How can I do this efficiently in QGIS? I have added a screenshot of the shapefile (from MapInfo, but I want to use QGIS for the disaggregation). …