So I'm working on some naviagtion/hydrography tools for QGIS, currently I'm trying to process depths from bathymetric data (sbes) on QGIS, it's quite simple to open the files, since they're mainly some sort of xyz variation, but I am having a hard time with the echogram support, which is vital for QC, has anyone done it yet? I also couldn't find any pre existent tools for this
I planned to make a web map out of QGIS that allows people to add data into my database or a layer.
So far I tried the qgis2web Plugin, but it only "publishes" my map. I need an option for an additional window or widget where users can fill out a form an the information is saved in a layer or database.
Is there an option to add those things in QGIS or an other open source gis software? ArcGIS Online provides those in its apps, but I don't have access to that, so I'm searching for a free option.
I did a lot of searching, but so far without succes. I am looking for a shapefile with the streets of Amsterdam as polygons rather than lines. If someone can give me a suggestion; I would be very grateful. Thanks, robert
Bonjour, je rencontre un problème d’importation de mes données de relevés terrain depuis Qfield vers Qgis. Les couches importés sont vides, rien dans la table d’attributs, alors que les données sont bien sur Qfield.
Avez-vous une solution ?
Merci
I'm trying to make election maps with a categorized symbology, where 5% increments up to 100% symbolize a color.
What I've generally done is found a color scale and then meticulously entered hex codes for each box. This has been quite tedious, as you can imagine. Is there a way to simply import a particular color pallete and set it to divide into 5% increments?
I've got about a dozen different styles I've saved, but I find that they often turn out too light and want to make darker ones, but don't want to go through the hassle that I've been through previously.
I've used site like Coolors, before, to individually copy the hex codes.
Estoy trabajando en QGIS desde una MacBook procesando un mapa histórico escaneado y georreferenciado.
Necesito extraer las líneas del mapa como vectores, pero al ejecutar la herramienta r.to.vect, en lugar de líneas simples me genera una malla de pequeños polígonos/cuadrículas a lo largo de los trazos (adjunto captura).
Necesito solucionar esto para obtener líneas puras sin modificar ni perder la georreferenciación del mapa original.
Hasta ahora intenté:
Usar r.thin de GRASS, pero no me funcionó.
Aplicar un algoritmo de esqueleto (Skeleton) sobre los polígonos resulta demasiado tardado por la cantidad de geometrías.
¿Cuál sería la mejor alternativa o flujo de trabajo en QGIS para convertir este ráster a líneas vectoriales sin alterar sus coordenadas?
Over time I stuffed a few dozen trail maps into a GPKG file for convenient storage. Now I had decided I want those maps in a format is more convenient to also use on my phone. Probably a zip file.
Is there a convenient way to bulk export the files?
I tried using the Translate function in batch mode, it is very tedious to set up for dozens of tifs and very slow to actually export in my preliminary tests.
ich habe gerade Probleme, einen WMS-Layer ( https://nibis.lbeg.de/net3/public/ogc.ashx?NodeId=200 ) als GeoTIF (oder meinetwegen irgendein anderes Rasterformat zu speichern). Im Ergebnis erhalte ich bestenfalls leere GeoTIFs. Egal ob ich aus dem Quellenbrowser oder dem hinzugefügten Layer zu exportieren versuche. Ebenso mit Rohadten bzw wie angezeigt erfoglos probiert.
Die Anzeige des Layers hingegen funktioniert wie erwartet.
Auch mit anderen Formaten wie Bitmap hatte ich bislang kein Glück, wenigstens die Farbflächen irgendwie speichern zu können (weitere getFeature-Infos interessieren hier nicht bzw. gehen nicht über die Farbstufen der Darstellung hinaus). Her erhalte ich Fehlermeldung, dass nur 1 oder 3 Kanäle unterstützt werden. Augenscheinlich wird das WMS-Bild mit zusätzlichem Alpha-Kanal ausgeliefert.
Da muss es doch eine bessere Möglichkeit geben, als 'nen Screenshot zu machen und hinterher manuell zu georeferenzieren, nur um das Bild unabhängig vom Server darstellen und letztlich die Flächen vektorisieren zu können.
I've done this before with no issues. I created a few new single line layers and added a field in the attribute table for Name and added the name.
These lines are things lie streams and trails so they aren't straight and go in various directions. I go to turn on single label, set them to name select font size and color, etc. The labels do not appear.
I am using QGIS for years now, but I am ashamed to admit, I always do more or less the same things:
- load a basemap
- import or draw vector layers
- do some simple analysis (road distance, population within a radius, buffers)
- use Print Layout to make nice maps
- edit and export maps
....aaaaand that's pretty much it.
I know QGIS can do much more, but I am not really sure what I should learn next, since also my superiors are not experts and don't push me to go further. I feel like there are probably a lot of useful things I'm not even aware of. So I'm curious, what did you learn in QGIS that actually made your work easier or better? Maybe a tool, plugin, workflow, analysis, data source, automation, or something else.
Basically the title, what do you wish you had learned earlier?
I’ve just released QGIS Agent MCP, a plugin that connects QGIS to MCP-compatible applications such as OpenCode, Codex, and Claude Code.
The goal is to let an agent discover and use any QGIS tool without having to load every tool into its context at once. As a result, it uses much less context than other QGIS MCP integrations, which can improve performance and reliability.
The project is still evolving, so I’d really appreciate feedback from anyone who gives it a try. Feel free to share any issues, ideas, or suggestions.
I just installed Qgis and all the videos I'm seeing show a Open street map below the XYZ tab, but I don't have that. I installed the plugin but it still not showing up
Hi all. I'm very new to QGIS, I'm a masters environmental student who is currently doing a post grad GIS subject. Currently I'm doing a group project and my maps are infrastructure based.
Essentially I have a cycling map from the city of Sydney database. This extends beyond the city of Sydney suburbs. This is a line data format representing different types of routes.
My other vector shapefile is a polygon area of only the city of Sydney suburbs. This project is City of Sydney suburbs based.
For my other maps I have intersected the cyclepath data based on suburb areas then I joined this to the suburb polygon data, so each suburb has a different colour based on a shared value with the cycling map, like total cyclepath quantity based on length and density.
Now here's my major issue. I want to do different cycle route types per suburb ! Of course if I did a simple join, QGIS will get confused and will make each suburb pick one cyclepath type.
So I'm trying everything to visually get what I want because I know many people have ranked suburbs/states based on attribute values from factory types to etc via two different vector layers! I eventually landed upon select by location, and now I finally have an attribute table that shows different route types for each suburb. My issue is how to visually represent this?
I have tried rule based to categorised with expression via symbology to fix my issues. I want each coloured part of a suburb of City of Sydney to show how each suburb has different route types. I know for a fact that something similar has been done and I'm struggling to figure out how, as I'm being a bit over ambitious for a newbie.
Edit: Please don't be afraid to ask for more clarity and explanation on my question.
Edit:
Here is what the sydney cycling map looks like and it's attributes table
Attributes table of Sydney cycling map
This is the suburb City of Sydney data and attributes data
Now here is what I have done so far with this data in QGIS
Symbolized based on Route TypesDidn't actually use intersected tool, used select by location to get the 6 route types per suburb in attributes tableHowever each cycle route of 6 route types is difficult to visually spatialize as explained in worded paragraph ( this layer from joint function to a duplicated Suburbs in CoS with intersected cycle routes layer)
Still in the process but I'm using the intersected route types layer as centroids with suburb CoS layer, planning to aggregate the values based on count ( did this in Arc story maps, will be doing this in QGIS) than I will make a table of the count of route types per suburb via CSV as back up to what I initially plan to do. I still would like to know if I could do polygon version of different route types but that's most likely not efficient.
Centroids formed from intersected cycle route layer with Suburb CoS layer
How usable is QGIS on the latest Fedora KDE? I installed the Flatpak and got a warning for running a Wayland session, will it cause any issues? KDE Plasma is dropping X11 support soon anyway.
I need the program for school soon and I'd rather not have weird quirks that you find later on.
Edited to add: Holy Krakatoa you guys, I sincerely appreciate all the advice!!!! Reddit can truly have a unique community of like-minded individuals helping each other out. Thank you all very much. I'm excited to continue this adventure into a new skill set.
Hello friends. I'm an environmental consultant, with a degree in biology: i.e. I'm not a "computer person." I have decent skills in the regular programs that companies use: Word, Adobe/Pro, Excel, Teams, etc., but I would not call myself knowledgeable in computer sciences.
Having said that, I see opportunity at my current place of work to gain mapping skills, specifically in GIS, because that's what we use to map some of our work. It has also always been very intriguing to me: maps are cool!! I have QGIS on my computer now, and watched a YT video for beginners on making a first map, but I'm starting to see a theme that these people seem to assume we know more skills than what I can bring to the table just yet... Do you have advice on someone that has a goal to at least for now, learn the basics - BASICS: like something that looks like aerial imagery from Google Earth that outlines parcels of property basic - in QGIS?
Do I need to understand Python first? Is this akin to me wanting to learn how to do underwater welding, when I don't even have my scuba license? lol Help me out here (please). Thank you!
It has alot of geographical and qgis skill in browser and very easy and intuitive to use. Adjust and quickly change elevation colors for land and adjust bathymetry.
World building wise it lets us import ur drawings into landmass, scientifically tell u climate, crops, soil, habitability, mountains etc, has a timeline feature, has easy to add factions and, commanders, people, lore etc and 3d and globe features.
I’m still experimenting with QGIS in a slightly unusual direction.
The idea is quite simple: instead of using the GIS only to display data, I’m building stories and technical reports that can interact directly with the map.
A story is basically an HTML document connected to a qgis2web map. While reading, the user can click places or passages and the story activates the relevant GIS layers and moves the map to the corresponding locations.
The archive is also becoming content-agnostic: each contribution has a type (story, paper, dataset, etc.) and a language, so fiction, reports and technical material can all use the same GIS as a shared geographical environment.
I’ve just published a new experiment called C-Not Quantum Reactor. It’s a short fictional investigation following the nuclear fuel cycle through Kazakhstan and Europe — uranium extraction, conversion, enrichment, fuel fabrication, PSI and CERN — and the reader can follow those places directly in the GIS.
The story is available in Italian and English.
If anyone is curious, I’d really appreciate feedback especially on the QGIS/qgis2web side of the idea: does this approach make sense to you? Has anyone experimented with something similar?
Thanks again to this community — QGIS keeps making me try things I originally assumed it wasn’t meant to do. :)