All Questions
113 questions
4
votes
1
answer
88
views
Showing lines as stacked bars side-by-side in QGIS
In QGIS 3.38 I am working on a project for a nonprofit, and I'm visualizing value data joined to a line feature by segment. There are three lines across the route, with left ditch, road, and right ...
- 43
0
votes
0
answers
45
views
Extracting data from Danish open data dump file in QGIS
For an interactive map, I need to create a list of all settlements, even very small ones, of Denmark (except Greenland) including name, longitude and latitude.
At first, I thought I'd extract that ...
- 101
1
vote
0
answers
66
views
Grouping data points based on proximity and minimal count of attribute in QGIS
I am using QGIS to map animal counts on farms in the Midwest US and using a circle polygon to show where there are more than 30,000 animals between all the farms in that specific area. Each data point ...
- 11
0
votes
1
answer
90
views
ESRI Land Cover 2050 download
I need a 2050 land cover map for Central and South Americas. I found ESRI's 2050 Land Cover raster but was not able to download it.
They have an online interactive map, but with no download option. I ...
- 45
0
votes
0
answers
60
views
Importing CSV in QGIS results in inverted Y coordinates
I recently did a surveying job using 2 Emlid Reach M2 receivers (a base and a rover). All points were taken using the NAD83 MTM 7 projection. When I try to import a CSV file in QGIS, the Y coordinates ...
0
votes
0
answers
50
views
Issues with QGIS map projection and symbolizing point data
First off, I am using version 3.28 QGIS-LR on a Macbook 2015. I am currently taking an introduction course to GIS. One of the assignments was learning to project maps and visualize point data using ...
7
votes
1
answer
72
views
Finding out date format in the list of house numbers in QGIS
In my dataset, the data which contains house numbers are converted to date format in QGIS. Is there any script or tool to identify and convert them to normal format?
E.g. Case:
Actual Door No format ...
- 849
4
votes
1
answer
332
views
Why GADM state/county shapefile for Kenya does not line up with OpenStreetMap data?
I am fairly new to QGIS and am using XYZ Tiles for OpenStreetMap and shapefile layers from GADM to see boundaries in Kenya (to start).
I have an OpenStreetMap layer and gadm41_Ken_1.shp layer and the ...
- 41
1
vote
0
answers
75
views
Raster data are shown but can't be clipped or changed
I'm struggling with a new problem on QGIS 3.30. Here's what I want to do:
I downloaded raster data from my country in .img and can easily import them from my local driver into QGIS. The problem: After ...
2
votes
1
answer
185
views
Prioritise label by field containing data importance in the data QGIS
I have a file with many labels to show on a map. However, I want to prioritize the label by it's data. Example if my data says 3000 people live in a city, I want to prioritize this over the one that ...
- 21
1
vote
1
answer
104
views
QGIS 3.28.3 Firenze - How to show info in a GeoJSON file imported as a raster next to the concerned points
I'm having problems with GeoJSON files from the renass.unistra.fr/ site. Those contains seismic data build this way:
{"features":[
{"geometry":{"coordinates":[0....
- 13
2
votes
1
answer
204
views
Representing Hydrographic survey in QGIS
I have a depth Layer (soundings) and I would like to represent the labels the same way as in a Hydrographic Map.
As you can see in the image bellow, we have this kind of representation in a ...
- 990
0
votes
1
answer
55
views
Using NASA Above landcover imagery in place with Qgis
Landsat-derived Annual Dominant Land Cover Across ABoVE Core Domain is composite tiled classified imagery dataset covering the years 1984-2014. The format is elegant and clever but hard to use. Each ...
- 28.3k
2
votes
1
answer
454
views
Preparing data for timeline animation in QGIS
I have a data-spreadsheet containing a value-attribute that changes over time for a number of administrative units. I have a polygon layer as well with features for each of the administrative units. ...
- 74.9k
1
vote
2
answers
594
views
QGIS points disappear after changing CSV file location, changing data source doesn't help
I moved my database and shape files, and wanted to relink them to my QGIS project. The shape file worked fine, but the CSV file wasn't reloading properly no matter what I tried. I could see the fields ...
- 113
-3
votes
1
answer
522
views
QGIS and use of Python/R [closed]
I am very new to spatial econometrics. I have two quick questions about QGIS. Is QGIS Python powered? Do I need to learn Python for QGIS or knowledge of R will be sufficient to use QGIS? I don't know ...
2
votes
1
answer
387
views
Two persons working on same layer in QGIS [closed]
We are two people who need to edit on the same layer in QGIS. For example one of us will edit locally, the other one via a server connection.
- 39
0
votes
1
answer
148
views
Background data ski areas
I'm trying to visualise a specific ski route. The sample is taken with a gps tracker in Obergurgl & Hochgurgl, Austria. I am using QGIS for this assignment. I could insert the trace using vector ...
- 11
2
votes
1
answer
885
views
How do I convert an elevation shapefile into a CSV file with its XYZ data?
I am new to using QGIS and LeapfrogGeothermal Modeling. I have a shapefile for Elevation and Altitude data and need to extract XYZ coordinates out of it? Can I do that? and how? and what kind of file ...
- 21
5
votes
2
answers
814
views
Calculating green metropolitan urban areas
I need to calculate green spaces in the metropolitan area for 155 cities around the world in QGIS.
Greenery would include everything from parks, trees, playgrounds, golf, vineyards, etc. Any advice ...
- 87
-1
votes
1
answer
54
views
Seeking aerial imagery for small site in VA? [closed]
I am trying to locate the best aerial imagery to use to assess a small area in Virginia using QGIS 3.6. I need to buffer features around water features and overlay onto aerial imagery to show ...
- 1
-1
votes
1
answer
182
views
Using raster for r.sim.sediment?
I'm quite new to QGIS.
What data will I need to use the r.sim.sediment processing tool?
1
vote
1
answer
47
views
Seeking bare streets image of specific neighborhood?
For an infographic project, I would need the bare layout of the streets of a specific neighborhood. What I mean is just the streets "lines", without any name, color or symbol, really just the streets, ...
- 23
0
votes
1
answer
362
views
Converting data from parliamentary constituency code/county code to a mappable format?
I have a spreadsheet detailing fuel poverty in the UK, against a) individual parliamentary constituencies b) county and c) local authority. This can be found here if anyone needs to look: https://www....
- 113
1
vote
2
answers
275
views
Show MapBasic Window equivalent in QGIS, e.g. Python Window
Is there a Show/Hide MapBasic Window (or equivalent) in QGIS such as in MapInfo?
I would like to learn SQL expressions parsing, or a Python Window viewer?
- 904
0
votes
1
answer
191
views
Listing all exact Degrees, Minutes, Seconds for an entire area
Does a database or dataset exist that lists all exact Degrees, Minutes, and Seconds (rounded to nearest decimal) for the continent of South America? What I am seeking is a list of DMS's that covers ...
1
vote
1
answer
1k
views
Stereoscopic Interpretation on QGIS [closed]
I would like to know if anyone has worked with stereoscopic analysis (e.g extracting features such as drainage, forest an so on) using the following softwares: QGis, gvSIG, ILWIS or MicroImages TN ...
1
vote
0
answers
1k
views
Visualizing Weather Data in real-time/online with QGIS [closed]
I have been searching for quite some time now, but I can't seem to find the answer by myself.
I did come across some things that helped me a bit, but many answers on this topic were from quite some ...
- 125
4
votes
1
answer
100
views
QGIS crashes when I try to open the extension tab
As I try to boot up the manager in order to manage my currently installed plugins, QGIS tries to load some of my custom data/plugins repositories from work. Those need some specific credentials to ...
- 471
4
votes
2
answers
6k
views
Source of Contour Lines for QGIS
I am planning to go on multiple days hike and used Wikiloc to download GPX tracks. We will use a GPS for our navigation but I always want a printed map as a backup.
Maps for that area are notoriously ...
- 3,355
2
votes
3
answers
429
views
Format .csv or .txt file so that the following stops happening?
I have a large dataset compiled of point data. Previously, this data was contained in 3 different files that all were successfully made into layers on QGIS, however I just combined them into one large ...
- 31
1
vote
2
answers
4k
views
Displaying different attributes within layer with individual colors in QGIS 3? [duplicate]
I am trying to display different soil types within a geological soil layer with individual colors per each type of soil. As of now it is displaying all as the same color.
- 47
0
votes
1
answer
386
views
Where can I find UK boundary data shapefiles where features have attributes pointing to their parent subdivision?
I know similar questions have been asked before but none have given me exactly what I need. I am trying to find boundary shapefile data for the UK which splits different subdivisons into different ...
- 19
3
votes
1
answer
774
views
Adding vector layer to QGIS?
I am learning QGIS from scratch. Downloaded the software and data. I am following their manual uploaded in PDF format. I am stuck in the first step to add the vector layer. The layers panel show a ...
- 39
8
votes
2
answers
10k
views
Extracting Derived Z-coordinate data
I am trying to extract the z coordinate value from the derived attributes, similar to How to re-calculate area, perim, p2a,width and length in QGIS? but I cannot see a dedicated operator for finding ...
- 327
4
votes
1
answer
329
views
how to visualize csv data every 10 rows in QGIS
I have imported a csv file in QGIS. The file contains 1 column with 43000 rows of data. I want to apply a filter to visualise data only every 10 rows in order to make more clear the graphics.
Please ...
- 41
2
votes
0
answers
63
views
Dissolve in QGIS to merge several processes in different regions into one process with all values
I am working on a dataset where I combined geographical information of cities in Europe and changes of landcover in these regions. I am working with the CORINE Dataset and I would like to know about ...
- 242
2
votes
1
answer
446
views
Extending selections based on value of selected features in QGIS?
I have a layer with lots of features. Every feature has the data attribute. I could select some features by Select by location based on other layer(s) or just by free hand (yellow points as example).
...
- 752
2
votes
1
answer
1k
views
QGIS simple link to external data
I have a set of sensors at fixed locations across a landscape. Each is connected to an Arduino Uno board which is coupled to a WiFi board. New sensors get added occasionally and old ones stop working. ...
- 21
0
votes
1
answer
456
views
Getting data from World Bank in topics like economics, human rights or environment into QGIS?
The World Bank has a lot of data on their website that is shown on maps.
Is there is a way to download this data and use it in Qgis, preferably via shapefiles?
- 2,867
6
votes
1
answer
653
views
(X,Y,Z) Coordinate tracking in QGIS
I am working on a Python script which will give me the x,y and depth coordinates in QGIS. I have depth as an attribute of the raster layer. My objective is to get a status bar which shows x,y and the ...
- 197
0
votes
1
answer
104
views
Is there GIS data for Electrical Cables under ground in US? [closed]
Where is GIS data for electrical cables under the ground in US ?
AABSyS seems to provide data, but I couldn't find out it after all.
The data might not be in public. In that case,
substitute to it, ...
- 305
5
votes
2
answers
266
views
How can I constrain this filtering even more?
I'm using QGIS and I am trying to filter a dataset using the advanced filter. My dataset contains earthquakes in the U.S., Canada and Mexico, however I would like to exclude Canada & Mexico for ...
- 201
1
vote
1
answer
1k
views
Opening data from NSIDC in QGIS?
i download data from here https://nsidc.org/data/SPL2SMP/versions/3#, but i can not open it in QGIS.
Do you know how to open this data in QGIS?
- 391
3
votes
1
answer
9k
views
Need basemap with just state outlines?
I am very new to QGIS. I am working from work so there is extra security which is why I think I have problems accessing OpenLayers plugins. The only one that seems to load is Google Maps. Google maps ...
- 41
3
votes
4
answers
3k
views
Downloading Scotland's national power grid from OpenStreetMap
I've been tasked with finding a complete dataset of Scotland's electricity grid network. This comprises a series of cables carrying 132 to 400 kV. I'm assuming that many of these cables are above ...
- 221
0
votes
1
answer
426
views
Mapping Australian election results using QGIS? [closed]
I am interested in mapping Australian election results. There is a good tutorial here using British elections as an example. However, it relies on him joining two datasets using vlookup. I can't work ...
- 461
2
votes
2
answers
414
views
Creating a palette for categorized data displays
I regularly categorize data as follows:
Prehistoric = blue
Roman = red
Anglo-saxon = green
Medieval = yellow
Post-medieval = brown
Modern = grey
Undated = white
Is there any way to save this palette ...
- 211
4
votes
1
answer
341
views
Connect data from two different layers
I'm trying to connect data from two different layers to combine them in one new layer and continue working with them.
Let me explain that a bit more detailed: The first layer contains data (and ...
- 41
3
votes
1
answer
900
views
Importing large .asc files into QGIS
I've been given two .asc files containing a 1m raster data from a LiDAR survey. I only have access to QGIS.2.14.1 (which I'am using for the 1st time only having previous experience with ArcGIS) and I ...
- 31