Custom map overlay?

torhe · February 11, 2026, 9:45am

According to the grampsweb/features it is possible to create a custom map overlay.

How do I do it?

Gramps 6.0.6
Gramps Web API 3.7.1
Gramps Web Frontend 26.1.1

DavidMStraub · February 11, 2026, 9:58am

Good point, this isn’t documented

Add the overlay as a media object, go to edit mode and click “edit coordinates”.

emyoulation · February 11, 2026, 11:51am

The OP posting in the thread has been updated to include the screen capture and been linked to the Feature mention on the GrampsWeb.org site.

@DavidMStraub, would you cross link that feature mention to this thread?

DavidMStraub · February 11, 2026, 12:10pm

I don’t think linking this thread on the feature page is helpful.

But we should add a page to the user documentation about this feature. Ideally less concise than my answer above

@torhe did you succeed?

emyoulation · February 11, 2026, 1:27pm

The suggestion is that this discussion could be used to flesh out that overly concise answer.

And once there was a great example historic image and a clean workflow, then you (or preferably, a contributor) could flow it into your user documentation.

Gramps Web needs to establish a process that encourage users to collaborate on docs. A process that relieves you of some of that burden … so you are free chase targets on your coding wishlist.

DavidMStraub · February 11, 2026, 1:47pm

I agree.

These two things are what have right now:

github.com/gramps-project/gramps-web-docs

CONTRIBUTING.md

main

# Gramps Web Docs Contributing Guide

Thanks for helping to improve the Gramps Web documentation! This guide will help you get started with contributing.

## Finding your way around

The documentation pages are written in Markdown and stored in the `docs/en` directory. Each page on [grampsweb.org](https://www.grampsweb.org/) corresponds to a `.md` file in this directory.

The navigation structure is defined in the `mkdocs.yml` file at the root of the repository. This file controls how the pages are organized and displayed in the sidebar.

There is a automated translation service implemented, which will translate all new/changed files in `docs/en` to the other languages.

## Making changes

To make changes to the documentation, simply change the relevant Markdown files in the `docs/en` directory and submit a pull request.

If you are proficient with git, you can clone the repository, make your changes locally, and push them to your fork. If you're not familiar with git, you can also edit files directly on Github using the web interface.

## Adding new pages

Diese Datei wurde abgeschnitten. Original zeigen

How can we improve it?

emyoulation · February 11, 2026, 8:07pm

The system there is better posting final revisions. It is not like the gramps-project.org MediaWiki platform that allows constant tweaks.

Also, both Markdown and GitHub pull requests are beyond the skills (or patience) of many people who would otherwise contribute.

We should consider this forum to be a place to collaboratively discuss and evolve something to post. (You can also do quick temporarily links to threads here as a stopgap while the revision evolves.) You can even set postings here as ‘wiki’ postings … that anyone can change.

torhe · February 12, 2026, 4:34am

Hi,

I tried it, successfully!

If there any restrictions on the types of images?
Is it possibile to add a date? To make it render dependent on the set date?

DavidMStraub · February 12, 2026, 6:35am

Great!

Any image that works in your browser should also work there (if not, please report - honestly I haven’t tried anything but JPGs).

Assigning a date is currently not possible. It would be tricky as media objects don’t have dates.

emyoulation · February 13, 2026, 12:13am

Is that a difference between Gramps Web and Gramps for Desktops? I set the Media date as a sanity check when using the Photo Tagging addon gramplet. (When I tag a person, I compare their age on that data to that person’s apparent age in the photo. )

DavidMStraub · February 13, 2026, 7:31am

Is that a difference between Gramps Web and Gramps for Desktops?

That was a diplomatic way to say that I’m wrong Indeed I was wrong!

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Custom map overlay?

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