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location Potsdam, Germany
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visits member for 3 years, 3 months
seen 12 hours ago

Feb
27
comment How can I centralize QGIS connections for multiple QGIS installations
Just tried this custom shortcut: C:\OSGeo\bin\qgis.bat --configpath "C:\OSGeo\usrdata\config" --settingspath "C:\OSGeo\usrdata\settings". I did not manually create the folders \settings and \config before. QGIS will create \config on launch, but as written above with a default profile. --settingspath doesn't work at all - no folder \settings, and again the error messages "The layer C:\OSGeo\bin\--settingspath is not a valid layer and can not be added to the map" as well as "The layer C:\OSGeo\usrdata\settings is not a valid layer and can not be added to the map".
Feb
27
comment How can I centralize QGIS connections for multiple QGIS installations
I just tried --settingspath and --optionspath with QGIS 2.0 (osgeo4w) on Win 7, but I think I'm doing something wrong here. Just adding --optionspath "C:\new\user\folder" kind of works, but QGIS will create a new default profile at the designated folder instead of migrating mine. Adding --settingspath "C:\new\user\folder" won't do anything and causes these error messages: "The layer Z:\OSGeo\bin\--settingspath is not a valid layer and can not be added to the map" and "The layer C:\new\user\folder\ is not a valid layer and can not be added to the map".
Feb
5
comment How can I change vector grid extents in QGIS?
Plugins like e.g. MMQGIS makes this a quickand painless task.
Jan
29
answered How to read coordinates with variable Gauß-Krüger zone (meridian) in QGIS?
Jan
23
awarded  Informed
Jan
23
comment How to cut multiple neighboring raster images
Sorry for the delay. It took some time to get OTB up and running in my office QGIS installation. Sadly, the "split image" tool only seems to split a multi-band image in several single-band images with identical extents. It does not offer any options to cut a single raster image into e.g. quarters (which is what I need).
Jan
9
comment How to cut multiple neighboring raster images
Hm, the tutorials I found turned out to be less helpful than expected, and I'm haven't really used scripting before. I'm also not quite sure if I'm using the right terminology in my search. What I'm trying to achieve is more or less "reversed mosaicing", how would you call this process? "Clipping" is almost always used synonymous with "cropping" in my search results, and I don't want to crop anything away... I'm a bit lost right now.
Jan
9
comment How to cut multiple neighboring raster images
I need to cut about 40 raster images (sized 1x1 km) into 160 images (sized 500 x 500 m) without reducing the resolution. Some sort of batch process would really help, I just don't really know where to look. All tutorials I could find just address cutting a single larger image into smaller pieces, e.g. with vector lines.
Jan
8
asked How to cut multiple neighboring raster images
Jan
6
comment How to create labels using 2 columns?
You can also concatenate directly with "field1" || "field2".
Dec
13
comment how to fix greyed out edit button
@Jo Pedder: You can choose to show just a subset of features defined by an expression. You can set this up in the layer properties, "General" tab --> "Feature Subset". Just click on "build query". But I guess this wasn't your problem, then.
Dec
11
comment How to remove vertices or lines within a polygon?
Oh, I didn't mean to create a duplicate answer. Just started to type it, and got distracted for a while, so Alexandre Neto beat me :)
Dec
11
answered How to remove vertices or lines within a polygon?
Dec
10
comment how to fix greyed out edit button
Did you create a feature subset in your layer properties? I think this will grey out all edit buttons.
Nov
29
answered How to change the aspect ratio of a map without the scale changing?
Nov
26
comment QGIS, making a topo map from an excel file
@Eyal Saiet: Did this work for you?
Nov
25
revised QGIS, making a topo map from an excel file
replaced image
Nov
25
answered QGIS, making a topo map from an excel file
Nov
13
comment How to update file locations in QGIS projects?
I didn't know you could update multiple layers with a common directory at once. Thanks!
Oct
18
awarded  Citizen Patrol