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Dec
8
awarded  Popular Question
Nov
25
comment Sharing a QGIS project
In addition to QConsolidate there is also the 'relocator' plug-in.
Nov
16
comment How do I eliminate the black border on a georeferenced map layer?
Assuming you don't want to georeference your scans again, there's an alternative solution to your problem here: gis.stackexchange.com/questions/92458/…
Nov
14
comment What is limit to physical number of raster TIFFS that can be placed in QGIS?
I wonder if there's any mileage in the idea of 'combining' the files into a virtual raster file, a VRT (*.vrt)? Raster -> Miscellaneous -> Build Virtual Raster. You'd have to set some sensible extents before loading the file into QGIS, or QGIS would try to load the lot.
Nov
12
comment What is limit to physical number of raster TIFFS that can be placed in QGIS?
Does it always fall over on the same TIFF?
Nov
12
comment Does anyone know of satellite imagery, such as bing, that I can use to create my own polygons in QGIS by tracing?
If yours is a non-commercial project it's difficult to understand why it would be wrong to trace the polygons in GE and export them as a KML file for loading into QGIS. This is almost certainly the best way to trace GE data and GE provides the tools to do it. Why would Google provide the tools that allow you to do something, if doing it would breach their conditions?
Nov
9
comment increase resolution of generated hillshade on QGIS
One thing to try first. Right click on the hillshade layer in the layers panel, go Properties -> Style -> Resampling. Under 'Zoomed: in' select Bilinear, then set 'Oversampling' to (say) 6.
Nov
9
awarded  Custodian
Nov
9
reviewed Reject VRTs (vector union layers) not working in QGIS
Nov
8
comment Split Polyline QGIS - Too Many Resultant Features
Split Feature works as it should here in QGIS 2.12 under Ubuntu 14.04 and I don't remember it ever not working in any previous versions, Win or Linux. However, you don't appear to be doing anything wrong, perhaps the problem is to do with running QGIS on a Mac? N.
Nov
4
comment Coordinate translation in QGis?
There is a plugin called 'vectGeoref' that might help. (I think it is experimental.) I've never used it so I'm not putting this forward as an answer.
Oct
25
answered Georeferenced Image Rending As Black Shape
Oct
24
comment QGIS Georeferencer returning blank output
What transformation settings are you using? For two-point georeferencing I normally use Helmert/Linear. This needs a good, undistorted scan or image.
Oct
22
revised Convert UK OS grid coordinates to decimal degree WGS84?
edited tags
Oct
22
answered Convert UK OS grid coordinates to decimal degree WGS84?
Oct
22
comment Looking for a colormap for SRTM like OCM Landscape
Still okay here, in QGIS 2.10. Can you produce a hillshade layer from the DEM? When you are making the elevation-coloured layer make sure you are using the DEM and not the hillshade layer, by the way. I've been caught by this.
Oct
19
comment QGIS 2.10.1. GRASS Algorithm Processing
I have 2.10.1 (running under Ubuntu 12.04) as well and none the Processing Toolbox GRASS 7 modules run in this. According to bits and pieces I've read QGIS 2.12 is due out in the next week and this should fix the GRASS problems. In the meanwhile perhaps the 'QChainage' plugin will do what you want?
Oct
11
answered Importing theodolite recordings into QGIS?
Oct
11
comment QGIS poor Geotiff quality after importing?
In the composer what resolution have you chosen for the output raster?
Aug
13
comment QGIS - Adding Raster Data to a Scanned Map
It's very difficult with scanned maps, because it's very unlikely that, for example, all of the pixels in the 'chalk' areas will have identical values. You can spend an awful lot of time trying to do what you propose. It might be quicker to trace the geology objects to vector polygons. N.