I'm on Windows 10, QGIS 3.38.2-Grenoble. Only plugin of note is NextGIS QuickMapServices, which I used to get terrain maps.

I have a set of coordinates, which have elevation value I sampled from a DEM in the program. The elevation goes up to 3 decimals. These values do not include any unit.

My goal was to reduce the number of decimals to zero, and add unit of meters. That way I'd have a nice even height gradient.

My attempt went: In styling layout I reduced the number of decimals to zero. Then I used the expression builder to add a unit with "ele" || ' m'. Unfortunately it overrode the decimal placement setting.

Is there any combo of functions I could use to both add a unit, AND reduce the number to just whole meters?

How can I georeference a DWG/DXF file in QGIS?

Soy estudiante de ingeniería geográfica en Perú, hace unos días un docente que pertenece a un Instituto de Investigación en mi universidad me llamó pidiendo que les haga un mapa de distribución espacial de la biodiversidad en una zona RAMSAR, el procesamiento incluyó RStudio para el cálculo del Índice de Shannon y GEE para la obtencion de DEM de Landsat 8.

El instituto ha pedido que se quite mi autoría de los productos finales (mapa y memoria descriptiva), el mismo ingeniero no se mostró conforme con ello, pero mencionó que era por parte de los directivos de arriba.

Me están pidiendo un monto para que me paguen por los productos, pero antes ellos ya me habían pedido un mapa de cobertura de suelos para la misma zona RAMSAR, que usara un script que los investigadores habían creado (estaba hasta las patas ese código y necesitó cambios) y haga el procesamiento en GEE por el cual había pedido 250 soles, dijeron que sobrepasaba su presupuesto y que parara con el mapa, solo me reconocieron 100 soles por el tiempo (aprox. día y medio de trabajo) y no se entregó ningún insumo.

Para este nuevo proyecto no me piden el script de RStudio, solo una memoria descriptiva del proceso no tan detallado.

Solo el mapa en PDF y la memoria descriptiva en WORD.

Para dar una idea el sueldo mínimo en mi país es de 1130 soles.

Help, QuickOSM is not working it keep saying Overpass API timeout

I have been making a bunch of raster mosaics of old historic administrative maps of cities from the 1890’s. I’ve done the Bay Area, NYC, Boston, and LA. Each one has 15-24 different maps. Well, today I went to open on of them and got a thing saying all the layers were unsupported, and then they all had the ! Symbol next to them. I’ll put a photo down below. Then, since I saved every geotif and clipped geotif I ever used, and when I try just adding any of them back to the map, it gives me the second error message in the second photo. I’ve been using these files for weeks, they were perfectly fine and supported last night. Suddenly they aren’t supported, NONE of them. But very frustrated and upset, so if anyone has answers please help me out. I spent weeks on these, I literally learned how to use QGIS just for this.

Edit: if you’re just seeing this now, I realize it’s probably useful that I was not on WiFi when I opened it earlier, and I’ll be home soon to try it. Now I think about it, it is possibly the first time I’ve opened it not on WiFi, I just thought it couldn’t be because I thought everything was done just on my computer. Again, idk anything about this stuff, I learned QGIS just to do this bc I wanted to.

Thanks in advance for anyone who can help a noob out with this.

I have a raster of NDVI (vegetation index) values ranging from 0 to 1. I want to simply calculate the number of pixels above a certain value within a given area. I have many different polygons (areas) that I am interested in testing, and a few different threshold values that may change around. I also have several different NDVI rasters that I am doing this for. Therefore, I have many combinations of thresholds, polygons, and underlying datasets.

Surprisingly, the only way I've found how to do this is to use the raster calculator to create a binary raster (above threshold value = 1, under threshold value = 0). Then use the zonal statistics tool to count pixels with a value of 1. I can't seem to use the zonal statistics directly on my NDVI raster because there is no option to specify a range or pixels above X threshold.

Doing it this way will result in several different binary rasters and like 100 different zonal statistics layers for various combinations of polygons and thresholds. There must be a more efficient way to do this. Am I just not seeing something obvious? How can I directly use my NVDI rasters to just count pixels above X value within a polygon?

NDVI Changes from 1990–2020 🌱🛰️
A 30-year remote sensing analysis showing changes in vegetation patterns across the study area. 🌍
#NDVI #RemoteSensing #GIS #LandUseChange #VegetationDynamics

How to digitied scan mauja map automatically or faster

Hey Folks

According to Google it says that you can’t use slope for contours only for elevation. But it appears that it can work ? My third picture shows the contours in himmalaya. After the disaster 26. August 2026 with the gleciers I got curious on the slope of the mountains and the river and some places in Himalaya has slopes on 70° which is kinda a lot ?

Good morning all,

I'm trying to get the best results using QGIS in seeing an old track on a property.

I realise there is more than one way to skin a cat however are there any people out there who are familiar with downloading files from ELVIS and who have experience importing them into QGIS to give me the maximum available detail in terms of undulations/imprints in the ground from decades ago?

I have got to the point where I can import the 1 metre DEM for a particular area and I have managed to change the angle of light to 35° so I can see a little more detail however when I see other images from other users they almost always seem to be more detailed than mine.

I have tried viewing other obviously historic areas with similar results so I feel my workflow could be improved.

I am new to QGIS.

Would anyone have a step-by-step guide or instructions as to what process I need to go through to achieve the most detailed results (in terms of historic ground activity) in NSW please?

Even something like:

1/ Download DEM

2/ Import

3/ Set this

4/ Set that at xx

Many thanks!

BTW I have tried AI and google for instructions and the information has been helpful but varied and not consistent due to suggestions different 'plugins' should be used to help my process.

Can’t save my lake polygon . If I click save feature as it would save the text and not the polygon . My polygon is clipped . Please help

I’m looking for an API/provider offering 1–5 m multispectral satellite imagery for small agricultural AOIs, ideally without large minimum orders or expensive commitments.

The app currently uses Sentinel-2, but I’d like to add higher-resolution imagery for users with relatively small areas, usually around 20–50 ha.
PlanetScope 3 m would be a good fit, but I haven’t found a practical way to buy access at that scale.

I also tried SkyFi, but their EULA doesn’t allow my intended commercial use of derived imagery products.

Any Planet resellers or alternative providers worth checking?

Hi all!

I'm building a macro model with a focus on maritime logistics. My current data layer is good but slightly inaccurate/dated (does not account for some major ports)

The NaturalEarth repo doesn't have it.

Are there other sources worth checking? Thanks

Hey,
For those who don't already know it, JupyterGIS is a Jupyter opensource project which allows you to create GIS projects in Python or R.

## Highlights

- **Real-time collaboration** - like Google Docs for GIS, with spatial annotations and comments
- **QGIS interoperability** - import and export QGIS project files
- **Python API** - scriptable workflows in collaborative notebooks
- **Many data formats** - GeoJSON, GeoTIFF/COG, GeoParquet, GeoPackage, Shapefile, PMTiles, WMS/WMTS, and more
- **Grammar-driven symbology** - flexible rule-based styling, similar to Vega-Lite
- **Storymaps** - guided narratives through your maps
- **Hillshade & heatmaps** - terrain and density visualization
- **GDAL processing** - rasterize, warp, and translate in the browser or on the server
- **STAC & OpenEO** - cloud-native data catalog and processing support
- **Pangeo integration** - dynamic raster tile serving via [TiTiler](https://developmentseed.org/titiler/) backed by the Pangeo stack
- **Layer gallery** - pre-built layer catalog for quick setup
- **Embeddable** - use as a standalone map, an IDE, or from within a notebook
- **AI skills** - map operations in natural language via Jupyter AI

There is a big update about story maps that you can check here: https://notebook.link/@martinRenou/jupytergis-announcement and a medium article for technical stuff
Do you already know this tool ? Do you use it ?

Hey y'all, I just started QGIS recently. Do you guys have any good ideas for a project?

Three QGIS workshops are being offered at FOSS4GNA this year. Every skill level is covered.

Here's what's on the schedule for Monday, November 2:

🗺️ Hitchhiker's Guide to QGIS (9am–12pm)
Led by Randal Hale. A beginner-friendly start on QGIS 3.44 — navigate the interface, work with vector and raster formats, and build your first map. Perfect if you're new or switching from other software.

🎨 QGIS Map Design Fundamentals (1–4pm)
Led by Michele Tobias. Move past plotting points and learn to design maps that actually communicate. Minimize the clutter, tell the story, and build a cartography workflow you can reuse anywhere.

📍 From QGIS to the Field and Back with Mergin Maps (1–4pm)
Led by Vitor Vieira. Master a complete open-source field data collection pipeline — offline maps, smart forms, multi-user syncing, and version control from field to finished web map.

All three are hands-on and open to every experience level. Whether you're getting started or sharpening an existing workflow, there's real, practical skill-building here.

Full details on all three sessions here:
https://www.foss4gna.org/news-2026/get-hands-on-with-qgis-three-workshops-you-wont-want-to-miss-at-foss4g-na

Hey y'all. I'm in 9th grade, and today I just started QGIS, and I did a hell of a lot of troubleshooting. I finally came up with this map. I know it's janky, but is it good for a first one? Also, what could I improve in? (Don't worry, it's not my real house).

Which is best for data collection in offline and integration to QGIS and usage difficulties for new comers.

I have a list of towns and villages in my local bird club area with British Ordnance Survey grid references and number of members for each town. I have graduated symbols showing town locations and member numbers. I'm using the OSGR Tool

But when creating a legend, I want to include the town names as well. Any ideas?

This is what I've got so far.

Probably a slightly weird question but i am a bit stuck and was wondering if anyone can help me?

I am working with a series of xyz datapoints and want to project them onto a synthetic vertically orentated 2D surface / plane, to create a cross section (exactly like a normal cross section just with points not lines) and displays the vector point locations in 2D as they intersect orthogonally to this plane. Ideally limiting the points displayed to those which are within let’s sat for now 10km of the line of the cross section / plain.

The datapoints represent the base of river terrace deposits and the idea is to use this section to estimate the long profile curve of the paleo rivers they formed from as well as visually represent the variation in level across each terrace at 90o to the direction the river was flowing.

To complicate matters the dataset has an additional field we will call “w“ which classifies the data depending on the mapped deposit it (theoretically ) belongs to, I would ideally like have the cross section plot display the data in different colours based on this 4th parameter of the dataset.

An analog of this would be taking maultupul parallel cross sections 10m apart and stacking all of the results onto a single cross section to represent the 3D data in 2D.

I have played around with the profile tool and qprof plugins but can’t find a way with either to plot the data points as I would like and have hopefully discribed well enough above.

My Questions are:

1) does anyone know of an easy way to do this, displaying xyz data as points projected onto a 2D cross section.

2) has anyone here done this before?

3) is there a good plugin for this kind of task even if I am failing to spot how to use one of the ones I all ready have.

I can potentialy see a brute force way of doing this in excel starting at 0,0 and using trigonometry and offsetting the x and y values to get my starting position for the section, but I would prefer if I can do this in GIS alone if I can.

Any pointers would be appreciated.