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▲ 399 r/QGIS+4 crossposts

My first GIS map project - Wales' Marine Protected Areas

This is my first GIS project. I'm currently self-learning GIS and hoping to start a degree in Environmental Science (UK) this year, with an aim to work in conservation (preferably marine) in the future.

I live in Wales and wanted to create a portfolio piece to start learning GIS, something relevant to me and the field i'd love to work in.

QGIS was used to make the map with data from JNCC (OGL v3.0), EMODnet Bathymetry 2024, Esri World Imagery, OS Open Data, Natural Resources Wales.

After I imported the map into Affinity Designer to add the details.

As this is my first attempt I'd really appreciate any feedback.

u/SgtScream88 — 1 day ago
▲ 84 r/QGIS

Simplified Contour Map

Hello! I just found this map and liked the simplified contour map aesthetic, and want to learn how to reproduce it! I don't have much experience with QGIS, so I don't know if this is achievable with the software, or if the reference image is just a "freehanded" artistic representation. (Edit: map was made by u/tommakesmaps)

Where I'm currently stuck:
Downloaded the DEM for Japan. First attempt at the contour map was too detailed. Reprojected / Warped Dataset to reduce detail. Second attempt (image) is still too detailed and doesn't render coastline.

Any tips / suggestions are welcome!
Thank you in advance,
Sheepie.

u/sirpfannl — 1 day ago
▲ 164 r/QGIS

AI Edit Update: automatic segmentation feature to convert land cover rasters into vector polygons !

I dropped the AI Edit qgis plugin a month ago. At the beginning, it was only for image generation, but users really just wanted a vectorization tool. It works great now, and I'm happier (:

u/Lilien_rig — 1 day ago
▲ 22 r/QGIS

Qgis2threejs now has a “Publish with Qgis2OnlineMap” button (thanks r/QGIS and r/gis!)

About 3 months ago, I started building Qgis2OnlineMap because I felt publishing QGIS web maps online should be much simpler than it usually is. One of the first things I did was ask for feedback here on Reddit, and many of your comments helped shape the project. So first of all: thank you.

I wanted to share two milestones.

First, Qgis2threejs now includes a built-in “Publish with Qgis2OnlineMap” button directly in the export interface. That means you can export an interactive 3D scene from QGIS and publish it to a shareable link in one step. You just need to install both plugins.

A massive thanks to the Qgis2threejs developer for making the integration happen.

The second milestone is that Qgis2OnlineMap has now passed:

  • 5,200+ downloads
  • 20+ five-star reviews
  • 220+ users who have successfully published maps

It is increasingly being used by people sharing QGIS web maps with clients, students, and colleagues.

None of this would have happened without the feedback and support from this community.

I’m proud of the progress so far, but it is still early, and I’m sure there is much more Qgis2OnlineMap can offer.

What features or improvements would make publishing and sharing maps online even easier for your workflow?

Thanks again for all the support.

u/OldSurround5823 — 1 day ago
▲ 17 r/QGIS

How to delete the outer vector lines/textures outside the boundary when I download the file as svg or pdf?

I couldn't find anything about this issue I am having.. Everytime I download my files as svg or pdf and open them, all the lines inside the canvas extend outside the boundaries. Any way to fix this?

1st picture: it shows how it looks on qgis as template

2nd picture: when I load it on illustrator
When there is also lots of textures as layers they also extend in square shapes outside the boundary as well...

u/cinnamonerin — 2 days ago
▲ 6 r/QGIS

Help: Natural Earth layers keep inverting at random locations

Hi all,
I'm a relative beginner to QGIS, but I've picked up the basics for map making already.

For this project, I'd like to have the main focus be the Pacific Ocean, but whenever I so dare to use a projection not trimmed at 180°, the layers completely forget how to exist.

in this, the red layer is supposed to be the ocean. It gets it right at the north pole, but nowhere else. I've tried the reproject tool to no avail, and that's honestly the only thing I know to try.

Any advice?

EDIT: this is ESRI:53037, it functions fine on EPSG4346, EPSG3395, and ESRI54027 to name a few.

u/JerryRickton — 2 days ago
▲ 4 r/QGIS

Lidar as asc file.

Lidar grey scale pic (1m scale) . So i want to export this as asc files. To import this into Blender.

But while exporting file i have Error.

https://preview.redd.it/s4qlt2ork22h1.png?width=1327&format=png&auto=webp&s=9deb2070c9742b167e85dc01f16d34bf61fd210b

QGIS version: 3.34.4-Prizren
Qt version: 5.15.13
Python version: 3.12.2
GDAL version: 3.8.4
GEOS version: 3.12.1-CAPI-1.18.1
PROJ version: Rel. 9.4.0, March 1st, 2024
Algorithm started at: 2026-05-19T12:10:32
Algorithm 'Translate (convert format)' starting…
Input parameters:
{ 'COPY_SUBDATASETS' : False, 'DATA_TYPE' : 0, 'EXTRA' : '', 'INPUT' : 'wms://crs=EPSG:2180&dpiMode=7&format=image/jpeg&layers=Cieniowanie&styles=default&tileMatrixSet=EPSG:2180&tilePixelRatio=0&url=https://mapy.geoportal.gov.pl/wss/service/PZGIK/NMT/GRID1/WMTS/ShadedRelief?Service%3DWMTS%26Request%3DGetCapabilities', 'NODATA' : -999999999, 'OPTIONS' : 'COMPRESS=NONE|BIGTIFF=IF_NEEDED', 'OUTPUT' : '/home/g0nz0/Złotypotok/PotokASC.asc', 'TARGET_CRS' : QgsCoordinateReferenceSystem('EPSG:4326') }
GDAL command:
gdal_translate -a_srs EPSG:4326 -a_nodata -999999999.0 -of AAIGrid -co COMPRESS=NONE -co BIGTIFF=IF_NEEDED "crs=EPSG:2180&dpiMode=7&format=image/jpeg&layers=Cieniowanie&styles=default&tileMatrixSet=EPSG:2180&tilePixelRatio=0&url=https://mapy.geoportal.gov.pl/wss/service/PZGIK/NMT/GRID1/WMTS/ShadedRelief?Service%3DWMTS%26Request%3DGetCapabilities" /home/g0nz0/Złotypotok/PotokASC.asc
GDAL command output:
ERROR 4: crs=EPSG:2180&dpiMode=7&format=image/jpeg&layers=Cieniowanie&styles=default&tileMatrixSet=EPSG:2180&tilePixelRatio=0&url=https://mapy.geoportal.gov.pl/wss/service/PZGIK/NMT/GRID1/WMTS/ShadedRelief?Service%3DWMTS%26Request%3DGetCapabilities: No such file or directory
Process returned error code 1
Execution completed in 0.06 seconds
Results:
{'OUTPUT': '/home/g0nz0/Złotypotok/PotokASC.asc'}
Loading resulting layers
The following layers were not correctly generated.
• /home/g0nz0/Złotypotok/PotokASC.asc
You can check the 'Log Messages Panel' in QGIS main window to find more information about the execution of the algorithm.
reddit.com
u/Distinct-Bend-5830 — 2 days ago
▲ 173 r/QGIS+3 crossposts

The Ghost of the Polish-Lithuanian Commonwealth

Hi everyone!
I’d be curious to know how to make a cross-border maps of the former territory of the Polish-Lithuanian republic using economic/social/linguistic data from subdivisions of the contemporary countries that make up the area.
If you have advises about the platforms, methods, data to that you think would be interesting, would love to discuss it! This is a purely personal project, I think it could be fun to try and investigate the persistence of ghost territories, especially in places where borders moved a lot over time.
Cheers

u/3615-minitel-1992 — 4 days ago
▲ 2 r/QGIS

Why distance measured using Profile Tool plugin or Elevation Profile is approximately 1.5 greater than in Google Maps?

  1. Add Google map as base map to the project.

  2. Create line shapefile feature and measure its length using $length function in attribute table.

  3. Add DEM using SRTM Downloader and reproject it to project coordinate system.

  4. Build an elevation profile using Profile Tool plugin and Elevation Profile native function of QGIS.

  5. Distance in attribute table of the line and measured in Google Maps is for example 10 km, but Profile Tool and Elevation Profile show 15 km. Why so?

Elevation seems to be OK though.

Why the difference?

reddit.com
u/EnergyExcellent8514 — 3 days ago
▲ 0 r/QGIS

First time user

This weekend was the first time ever I’ve had to use the software and it’s absolutely terrible!

I really do appreciate the open source community for building it for people who need it. And you can tell it was a pieced project, but that doesn’t take away from how terrible it us

I know people use it daily in some instances but hopefully they’ve found better ways to do their jobs and not use that software.

I got frustrated enough to write this.

reddit.com
u/Puzzleheaded-Rent296 — 4 days ago
▲ 0 r/QGIS

how can I to create a 'partial' map?

Hello,

I'm wondering, is it possible to create a partial map of a specific country?

Basically what I mean is to just have a map of a desired country without the surrounding countries beyond the it's borders.

If there is a tutorial somewhere, please let me know.
I checked the QGIS manual but couldn't find a related entry.

Thanks

QGIS v. 3.44.7 on Linux

reddit.com
u/Dependent-Bridge-740 — 5 days ago
▲ 6 r/QGIS

All I see is 10 red dots...

Hi all

We're installing some signs along a trail and I was given a zip file containing:

  • point.cpg
  • point.dbf
  • point.prj
  • point.shp
  • point.shx

Internet search told me those are for GIS and more internet search told me I can download QGIS for free to view them. But additional internet search has not helped me understand what to do next.

So far, I've tried dragging all 5 files onto the open QGIS area/window -- 2 of them didn't open (and apparently 3 of them did?) but all I see is 10 red dots. I assume that's the location of the signs. But how I do see more information? How do I get a surrounding map?

(This is for a quote that's due TODAY -- nothing like last-minute learning/questions, eh?)

Thanks for any help insights you can give me.

Here's what I see in QGIS:

https://preview.redd.it/hju9xr2uab1h1.png?width=1210&format=png&auto=webp&s=08a258f2bfb690faca486209a3d301d993ce631c

reddit.com
u/Objective-Buyer-4133 — 6 days ago
▲ 18 r/QGIS

QGIS-Plugins master thesis, what plugins are still needed

Hey you all,

I am currently thinking about developing a QGIS-Plugin for my master thesis and am interested on what plugins are still needed. Do you have ideas on what could be useful? I am open to include AI-based solutions but am also a fan of the "oldschool" way.

In my bachelors I developed a plugin that analyses the symbology used and identifies color conflicts for people with color vision deficiency. That was very fun and I am interested in developing a plugin again for my masters

reddit.com
u/FoFo_official — 7 days ago
▲ 44 r/QGIS+1 crossposts

Road Centerline Extractor – New QGIS Plugin

Hi everyone,

I'd like to share a plugin I've been developing called Road Centerline Extractor, now available on the official QGIS Plugin Repository.

What it does

The plugin converts road polygon layers into centerlines, automating a process that is otherwise time-consuming when done manually. It is particularly useful for forest road inventories and rural road networks where roads are represented as polygons rather than lines.

Key features:

  • Extracts centerlines from road polygon layers using Voronoi skeleton analysis
  • Automatically segments the output at T-junctions and intersections, so each road section between two nodes is a separate feature ready for individual classification (primary, secondary, local, etc.)
  • Joins centerlines across adjacent polygons that share a boundary, ensuring continuity along the road network
  • Spur pruning to remove skeleton artefacts and noise
  • Minimum road width filter
  • Length reporting per segment in meters, kilometers, miles or feet

Why I built it

Existing QGIS tools can extract centerlines or calculate skeleton geometries, but none combine centerline extraction with automatic segmentation at junctions in a workflow focused on road polygons. The goal was to produce output that is immediately usable for road classification and length estimation without manual editing.

Installation

Search for Road Centerline Extractor in the QGIS Plugin Manager, or visit: https://plugins.qgis.org/plugins/road_centerline_plugin/

Feedback welcome

This is an early release and I'm actively looking to improve it. I'd love to hear from anyone working with road polygon data:

  • Are there edge cases where the segmentation does not behave as expected?
  • Would support for additional output formats or attributes be useful?
  • Any performance issues with large datasets?
  • Feature requests or workflow suggestions?

All feedback is appreciated. The source code is available on GitHub: https://github.com/Lyghtnyng/road-centerline-extractor

u/Educational-Pool3420 — 7 days ago
▲ 47 r/QGIS+2 crossposts

AI Edit models works surprisingly pretty well with aerial imagery. Here's a demo with the "AI edit" plugin in QGIS

u/Glass-Caterpillar-70 — 7 days ago
▲ 17 r/QGIS

Running QGIS on Mac

Hi everyone, I have been a Windows user all of my life. Now, I am thinking of getting a new Macbook Pro. To those using QGIS in Mac, I would to know if it works well in your Mac computer. I use QGIS almost everyday and this is a basic requirement.

Thanks for answers!

reddit.com
u/nibar1997 — 7 days ago
▲ 63 r/QGIS+1 crossposts

Just released an upgrade on my first QGIS plug-in, TerraLink, it's for landscape connectivity optimization and wildlife corridors. Would love any feedback you can provide

If anyone is doing ecological restoration or landscape level planning for wildlife would love any thoughts you have on my plug-in. There's a web tool and R package available too if that's easier. Many thanks
TerraLink

u/BrotherBringTheSun — 8 days ago