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1500 questions
21
votes
7 answers
Stopping writeOGR from abbreviating Field Names when using ESRI Shapefile driver
I'm currently using the following script to add some attribute data from a table to lots of individual shapefiles:
library(rgdal)
specieslist <- read.csv("SpeciesList1.txt", header=F)
attdata <- read.table("TestAtt.csv", sep = ",", header=T)
for (n…
JPD
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21
votes
9 answers
Near real-time sources of lightning strike data
I am wondering if anyone has any suggestions on sources of near real-time lightning strike data available for download? For example, Intellicast.com has a map of strikes, but makes no mention of the source of the data they used.
Key attributes…
RyanKDalton
- 23,068
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21
votes
4 answers
How do I load a .dbf file into QGIS?
I want to use QGIS to extract lat/lng data from the vertices of polygons. There are about 400 polygons, each with maybe 200 vertices. I am having trouble with step one, getting the data into QGIS.
The polygons are viewable in ArcGIS Explorer using…
tomb
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21
votes
7 answers
QGIS 3.0 can't load plugin processing, no module named 'osgeo', on Manjaro Linux
I have installed QGIS3 from the AUR package, as well as all optional dependencies:
https://aur.archlinux.org/packages/qgis/
However, when launching, I receive the following error:
Couldn't load plugin 'processing'
ModuleNotFoundError: No module…
thi_sanna
- 429
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21
votes
2 answers
Creating temporary layer out of selection in QGIS
I want to create a temporary layer out of an existing layer and only get those features from the existing layer, which are selected. I know that ArcGIS has this functionality that you can create a layer from selected features.
However, I could not…
LaughU
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21
votes
3 answers
Geodetic Coordinates And Latitude, Longitude
Would it right to say that geodetic coordinates (phi & lambda) are the same as latitude & longitude?
G.S.Tomar
- 431
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21
votes
7 answers
Recalculating full extent of File Geodatabase feature class?
I have a featureclass in an Esri file geodatabase. When I edit the features using the editor in ArcMap, and I delete most of my features and keeping only the ones in the middle, the zoom to layer command doesn't work as expected. Instead of zooming…
offermann
- 521
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- 15
21
votes
1 answer
Dual-unit scale bar using QGIS?
I would like to create a scale bar for a map displaying a coral atoll. Ideally, showing two different measurements with kilometers being on the top division and nautical miles on the bottom division of the scale bar.
I paused to think whether this…
Beaver
- 357
- 1
- 9
21
votes
5 answers
Splitting vector into equal smaller parts using QGIS
How do I divide a shapefile with many tiles into a lot of smaller tiles using QGIS?
I am searching for a smart solution, because manual edits are out of questions
Curlew
- 8,152
- 5
- 36
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21
votes
6 answers
No module named 'osgeo'
I have installed GDAL and checked on the command line, it is working and when I run the gdal2tiles.py on the command line it works but when I run the same file gdal2tiles.py with python IDLE, I get "No module named 'osgeo'" error. Can you assist.
Asanda
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21
votes
12 answers
How to Geocode 300,000 addresses on the fly?
I have a database which has 300,000 address, which are to be shown on map. I know if I geo-code all the address it will be too expensive for me. So I was wondering if it is possible to geo-code the address on the fly/ realtime, when a user would…
user1089553
- 347
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- 15
21
votes
2 answers
21
votes
10 answers
Broken packages and unmet dependency installation QGIS, PostgreSQL and postgis Ubuntu 14.04
I am aware that this could be a duplicate topic but I am struggling for a several days.
I upgraded QGIS from 2.8 to 2.18 and after that everything get broken. I couldn't use PostGIS extension on pgadmin3.
I figured out that there were a conflict…
Glori P.
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21
votes
3 answers
Finding angle between intersecting features in two feature classes using ArcGIS Desktop and Python
I have two intersecting line featureclasses. I want to find the angle at each point of intersection using ArcGIS 10 and Python.
Can anyone help?
Bikash
- 211
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21
votes
3 answers
Identifying road intersections using PostGIS
I'm trying to identify where roads intersect each other, and to make a point at this intersection, with the number of roads that form the intersection listed.
I was wondering if there was some way of using ST_NumPoints to achieve this but I can't…
djq
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