osm-americana/openstreetmap-americana

Refs with dual numeral systems

Open

#465 opened on Jun 28, 2022

View on GitHub
 (4 comments) (1 reaction) (0 assignees)JavaScript (78 forks)auto 404
bughelp wantedinternationalizationshields

Repository metrics

Stars
 (238 stars)
PR merge metrics
 (PR metrics pending)

Description

Some countries have route shields posted with local numeral systems alongside Western Arabic numerals. These could potentially be displayed side-by-side, or one at a time with language switching (#21).

For example, Iran (#463, #464) posts Persian numerals:

Iran_Freeway_7 Iran_First_Level_Road_44 Iran_Second_Level_Road_122

In the case of Iran, the route relations are tagged with Western Arabic numerals in ref=* and Persian numerals in ref:fa=*. Only ref=* is surfaced in OpenMapTiles, and none of the available fonts have glyphs for Persian numerals. These issues would need to be resolved before support can be added for Persian numerals on Iranian highways.

Contributor guide

Research direction
Investigate how route shields are rendered in the current style, identify where ref tags are read, and explore options for supporting multiple numeral systems (e.g., using CSS font stack with fallback fonts or adding custom glyphs). Consider OSM tags like ref:fa=* and ensure fonts include necessary Unicode ranges.
Tech stack
javascriptcss
Domain
frontend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitJavaScriptCSS
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60