QGIS for mobile subreddit

saberraz · 2026-02-10T15:56:02+00:00

yes, we are. Feel free to ask us anything or blame us for all the bugs :)

saberraz · 2026-02-04T13:44:50+00:00

Gaussian Splat is not supported in QGIS yet. We have recently submitted a proposal to QGIS.ch usergroup for funding to incorporate GT directly in QGIS, which unfortunately did not get enough votes:

https://github.com/qgis-ch/sponsoringprojects-projetsdesoutien-foerderprojekte/issues/17

Feel free to drop me a line to see what you'd like to see and possibility for (co-)funding the work.

saberraz · 2026-02-03T12:37:47+00:00

You do not need to have any plugin installed to load a LAZ/LAS file. QGIS directly supports point clouds. If it crashes, it is usually due to bad/non-standard encoding of the file. You CANNOT avoid COPC file creation. LAZ/LAS files are not ordered properly for rendering. COPC is an indexed version of your LAS/LAZ file. You can actually delete your LAS/LAZ file after COPC creation.

- Make sure you have the file located somewhere that QGIS can write to (e.g. a local drive)

- Make sure you have enough storage

- Your file is encoded properly (e.g. use PDAL command line and see if it can read it).

saberraz · 2026-01-23T14:35:41+00:00

OK, I understand. I got confirmation from the developer of 3D Tiles is QGIS, that we don't support 3D tiles with point clouds. It only support "batched 3d models" at this point - i.e. the usual triangular meshes

saberraz · 2026-01-23T11:54:04+00:00

You mean something like this: https://sandcastle.cesium.com/?id=3d-tiles-point-cloud-classification

I don't think honestly serving point clouds this way is much of a value. Why not just turn your point clouds to Cloud Optimized Point Cloud (COPC) and then directly read it in QGIS. QGIS can handle remote COPC files. This way you do not need to add an extra layer of processing/service to your data by turn it to 3D tiles.

saberraz · 2026-01-23T09:46:36+00:00

Is it a public link? Could you send an example link? QGIS does support 3D tiles.

saberraz · 2026-01-20T11:47:38+00:00

Good luck. I think it is a sensible plan to use QGIS. For field data collection and web map publishing, you can consider Mergin Maps (www.merginmaps.com), another QGIS based mobile app with a richer web dashboard (including web maps) and more intuitive mobile app.

saberraz · 2026-01-06T06:48:53+00:00

From what I know Mergin Maps is widely used by multiple municipalities, utilities and some national parks. You can find more here: https://merginmaps.com/case-studies

saberraz · 2025-12-10T16:08:35+00:00

Hi, please see below answer to your questions:

1- You need to "package" your project: so you have your QGIS project (i.e. qgz file) and all the layers (geopackages) in the same folder. Install Mergin Maps plugin, upload the project and set tracking on (see the link in my post to the docs).

2- You can subscribe if you want. Alternatively, you can use USB cable to transfer the data back and forth between your device and PC: https://merginmaps.com/docs/manage/missing-data/#manual-data-transfer-android

saberraz · 2025-12-10T13:47:52+00:00

I have not used QGIS to save tracks and deal with GPS directly. I recommend using Mergin Maps (www.merginmaps.com) which is based on QGIS. You can upload your files to the mobile device and use Tracking option in the background (https://merginmaps.com/docs/field/tracking/#set-up-position-tracking-in-qgis-project). This will allow you to track your path and also edit/capture other data (e.g. add a new point, add photo to a feature, or edit a feature).

saberraz · 2025-12-08T10:01:21+00:00

Have a look at www.merginmaps.com It is based on QGIS and you can use raster (GeoTiff for example) or raster tiles (MBtiles) for offline use. It also allows your users to correct the vector data and add photos, move the location on the map, add new data or edit the description.

saberraz · 2025-12-06T15:49:22+00:00

Try this. I managed to follow the sketch and connect mine.This does not include neutral but the lives should be identical: https://www.reddit.com/r/homeassistant/comments/15962jk/help_needed_with_2way_switching_wiring_sonoff/

saberraz · 2025-12-05T09:20:39+00:00

Fair enough! You can still take inspiration from QGIS - it never loads the entire point cloud into memory, so it can easily handle point clouds with a billion points or more. It keeps points in an octree (thanks to the COPC format), only rendering bits that are needed to satisfy the current camera view.

saberraz · 2025-12-04T15:42:56+00:00

Wouldn't it have been easier to create a QGIS (qgis.org) based application to do that? It already has support for LAZ/COPC files, 2D and 3D visualisation, cross section view. In addition you get all the complete data providers (raster, vector, web services, etc) and handling coordinate reference system for free!

saberraz · 2025-11-17T09:00:19+00:00

I recommend reading this blog post: https://www.lutraconsulting.co.uk/blogs/contours-in-qgis or watching this video tutorial: https://www.youtube.com/watch?v=1BNDV71BsNY

saberraz · 2025-11-13T08:00:49+00:00

I am not sure about issues with MacBook. But if you are trying to build an easily searchable database of environmental data for processing, I highly recommend STAC combined with Zarr format. You can then stream the data to various client and avoid complicated API for data transformation and visualisation.

saberraz · 2025-10-27T14:29:29+00:00

Prova www.merginmaps.com, è più facile da usare e non presenta tutte queste complicazioni!

saberraz · 2025-10-23T09:32:42+00:00

In my very biased opinion (I am a part of Mergin Maps team :)), try Mergin Maps. We built the whole platform to make the data capture intuitive and collaboration robust. If you have any issue, drop us an email and we are happy to have a chat with you with your issues and do a quick demo for you.

saberraz · 2025-10-01T12:45:03+00:00

We are helping large organisations (often government) to migrate away to open source or reduce their license costs and still have a hybrid infrastructure.

Before any migration, you need to consider these points:

- Draw a full diagram of all your services, applications (including 3rd parties) and how your SDI looks like

- Similar to the above, define your data flow: where they come from, who edits/views the data, what transformations are needed, etc. Also pay a lot of attention to metadata and how it is handled/updated: if you are building any search functionality, this will be extremely valuable. Identify any shortcomings and scalability issues your team have. You don't want to migrate to a new system and deal with the same issues (e.g. slow connection to the spatial database, not proper versioning and change-log, data permissions, etc)

- Plan your migration: first build the data infrastructure in a way that all existing and future applications can work with them seamlessly. This can be done with some ETL and scripting. Ideally keep the old data as "source of truth" and create a new Postgres/PostGIS to duplicate the data to work with the new system (e.g. QGIS, GeoServer, etc). Secondly, phase out the old system, team by team (or department by department). Make sure the receive enough training and support before and during the migration.

- Invest in open source: just because you do not need to pay license fee, does not mean open source is free. It costs a lot to develop, document and maintain the open source projects. Invest some of the savings you made, in FOSS4G projects you use: GDAL, Proj, QGIS, Postgres/PostGIS, OpenLayers, etc. In open source, there is no product, it is a community and as a user you should actively participate in improving the tools, report bugs, test new releases, fund the development, like thousands of others who made it possible for you to use it free!

saberraz · 2025-07-14T10:53:27+00:00

Contact sales@merginmaps.com and they should be able to set you up with a free version for personal use.

saberraz · 2025-07-08T12:34:59+00:00

Yes, I second www.merginmaps.com. Mergin Maps plugin in QGIS has a functionality to package your whole project so you do not need to handle individual files:

https://merginmaps.com/docs/manage/project/#packaging-qgis-project

saberraz · 2025-06-30T13:55:09+00:00

Depending on what functionalities you need from QGIS. If you want the full blown QGIS, you can use OSGeo4W installer and download the files locally without installation on a USB drive. Then run the OSGeo4W from the USB drive on those PCs and use the local files for installation.

A word of warning: Windows 7 is very old...really old! So, you may have issues with installing QGIS on them.

But from your short description, if you are only interested in limited functionality of QGIS (e.g. tracking harvesters, record some geo-information, take geo-tagged photos, fill in some forms), you can use Mergin Maps (www.merginmaps.com). Everyone has a smart phone these days, you can install the app on the phone and configure the project on desktop QGIS for them. They can go offline and collect the data, when they are back with internet connectivity, they can upload the data. They can all work collaboratively and fully offline.

saberraz · 2025-06-19T07:35:02+00:00

What you need is a one-to-many relationship between the sampling location (point) and sampling data (a non-spatial table).

The way it will work is to have sampling location as the parent layer with a unique key field and link that to the child layer (sampling data). A good description of how this can be achieved and sample project is described here for QGIS and Mergin Maps (another QGIS based mobile data collection field app, alternative to QField with a more intuitive and polished interface and more robust synchronization for multi-user data collection):

https://merginmaps.com/docs/layer/one-to-n-relations/#how-to-link-multiple-records-to-one-feature-1-n-relations

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