All Questions
113 questions
4
votes
1
answer
2k
views
How to filter and download OSM data by attribute tag?
Is there any online service that allows to download only one thematic layer of the OSM data for a specific geographic region? For example all objects related to vegetation (trees, grassland,...), but ...
- 165
4
votes
7
answers
20k
views
Export 3D data DXF file
I'm trying to export a DXF file from QGIS 1.8.0 Lisboa and can not have a 3D file in AutoCAD or Microstation. It results always in 2D file.
How can I export height data from a shapefile in QGIS?
2
votes
1
answer
1k
views
What is No Data Value?
I'm looking at the transparency window of the layer properties of my "Heat map". How does the No Data Value effect a raster layer. I'm assuming an initial setting of -9999 sets it out of the way, so ...
- 239
1
vote
0
answers
285
views
Heat Map trouble: Is this a data formating problem?
I'm playing with the heat map plugin with QGIS. I've run through QGIS tutorial:
http://docs.qgis.org/html/en/docs/user_manual/plugins/plugins_heatmap.html,
using the airports data set as explained ...
- 239
0
votes
1
answer
2k
views
Is it Possible to Convert a GRD File into an ASC File in QGIS?
Is it possible to convert in QGIS a GRD file (that was created in MapInfo) into an ASC file (that can be imported into SAGA)?
Is it possible to "extract by mask" a section of a GRD file in an other ...
2
votes
4
answers
574
views
Where can I get free New Zealand and Melbourne geodata?
I have just installed QGIS. Do any forum users know where I could download or access files and maps for 1) New Zealand, and/or 2) Melbourne/Victoria, Australia. Preferably it would be good to know ...
- 21
4
votes
2
answers
898
views
Why can't I see all records in my personal GDB in QGIS?
I am running QGIS 1.8. I have a layer from an ESRI Personal GDB. There are 431 features in the layer. When you load the layer into QGIS, and look at the Metadata properties, it shows the number of ...
- 13.3k
7
votes
3
answers
30k
views
Import info from mdb file into a project?
I need to import info on a QGIS project.
The info are in a MDB file (population, mean age, number of cars and so on: one record per region) that is written to be connected with a region shape from an ...
- 1,313
1
vote
0
answers
168
views
How to maintain schema when copying feature from layer 1 to layer 2, where both layers have same schema?
If I load two unique layers, wherein each layer contains unique data, but both layers share the exact same schema, why is it when I copy a feature from layer 1, and paste it into layer 2, the ...
- 11
8
votes
2
answers
67k
views
Adding points to point vector layer using QGIS?
I have a point layer with multiple data points in QGIS, but I want to add some extra data points to it and adjust some info that we missed because the ground was wet and we needed to go around it. I ...
- 81
18
votes
4
answers
30k
views
Saving project with data source path as relative in QGIS?
Is there an option in QGIS to save the project with the data source being a relative path?
I don't see the option here. QGIS Wroclaw1.7.3
- 3,409
5
votes
2
answers
315
views
How to deal with multitype data sources in QGIS?
Today I was trying to import a DXF to Qgis, the result is that qgis displays everything LINES and POINTS but it only displays options for the POINT objects.
When I try to export to a shapefile, it ...
- 9,865
12
votes
2
answers
9k
views
Derive WGS84 Longitude & Latitude from British Northings & Eastings
I'm looking for a fairly simple way to append columns with WGS84 longitude and latitude to a table containing northings and eastings. The source data is Ordnance Survey's CodePoint Open, which I is ...
- 413