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Add support to map ruler based on configured projection

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#1,963 3 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript, python

Research direction

No files, tests, or entry points are named. Start by tracing how Folium configures map projections and renders its maps, then determine how a ruler can follow the projection and expose configurable latitude and longitude tick intervals. Done means the ruler surrounds the map, adapts to the configured projection, and supports separate configurable intervals.

Written by the indexing model from the issue text.

Description

It would be great if we had the possibility to show a ruler around the map. This ruler should change as the projection change as well, and the frequency of the ticks should be configurable as well (eg. show the latitude every 10km and longitude every 5km if we are dealing with an UTM projection or latitude every 2º and longitude every 3º if we are dealing with geographic projection). It should be something like that:
image

Another example:
image

We already have a scale bar, which is great, but it would be very good to be able to see the ruler around the map.

Dominant language
Python
Stars
7.4k
Forks
2.3k
Avg merge
17h 22m
Merged PRs (30d)
11

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