d3/d3-geo

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Geographic projections, spherical shapes and spherical trigonometry.

Is d3/d3-geo beginner-friendly?

We have not seen enough recent pull requests from outside contributors to d3/d3-geo to say how often they are merged. No beginner-friendly issue is open right now; the list below has the other issues we hold for it.

Stars
1.1k
Forks
159
Open beginner issues
0
Indexed issues
28
Avg merge
6h
Merged PRs (30d)
1
Dominant language
JavaScript
License
No license data
Last GitHub push
Nov 3, 2026
Latest indexed
Nov 8, 2026
No contributing guide
No code of conduct
Beginner labels
No beginner labels indexed

How to contribute to d3/d3-geo

  1. There is no contributing guide, so start from the README and a few recently merged pull requests to see how changes are proposed.
  2. Follow the repository to hear when a new beginner-friendly issue opens, or look through the other issues below.
Beginner friendly Everything
Open All

Issues somebody may already be working on are listed last. List everything by date

  • geoCircle produces an open LinearRing
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 57/100

    d3/d3-geo#289 ·

  • path.bounds should return numbers even when input coordinates are strings
    Open
    • Is something wrong?
    question

    Difficulty 2/5 1-3 hours Newbie friendliness 55/100

    d3/d3-geo#278 · 1 reaction ·

  • postclip with polygon path maybe...
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    d3/d3-geo#266 · 10 comments ·

  • single point has no extent
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 25/100

    d3/d3-geo#237 · 1 comment ·

  • Proposal: Add a benchmark.
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 24/100

    d3/d3-geo#235 · 5 comments · 1 reaction ·

  • d3.geoIdentity() doesn't implement projection.center
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    d3/d3-geo#219 · 1 comment ·

  • Missing test coverage in src/clip/circle.js
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 20/100

    d3/d3-geo#213 · 2 comments · 1 reaction ·

  • reflectX results in the wrong winding order
    May be free again Open
    • Is something wrong?

    d3/d3-geo#212 · 1 assignee ·

  • geoPath.width ?
    May be free again Open
    • Is something wrong?
    idea

    d3/d3-geo#200 · 3 comments · 1 assignee ·

  • geoPath.curve ?
    May be free again Open
    • Is something wrong?
    idea

    d3/d3-geo#199 · 2 comments · 4 reactions · 1 assignee ·

  • Clarify the resampleLineTo "midpoint close to an end" condition
    May be free again Open
    • Is something wrong?

    d3/d3-geo#173 · 5 comments · 1 assignee ·

  • d3.geoPath as textPath: flip text
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 25/100

    d3/d3-geo#172 · 2 comments ·

  • projection.prepreclip?
    Open
    • Is something wrong?
    idea

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    d3/d3-geo#170 · 3 comments ·

  • geoTransverseProjection?
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    d3/d3-geo#157 · 5 comments · 1 reaction ·

  • Changing the precision for geoContains for LineStrings?
    Open
    • Is something wrong?
    idea

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    d3/d3-geo#153 · 2 comments ·

  • ref. to geojson.org is obsolete
    Open
    • Is something wrong?

    Difficulty 1/5 Under an hour Newbie friendliness 45/100

    d3/d3-geo#151 ·

  • Clarify definition of "smaller than a hemisphere"
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 35/100

    d3/d3-geo#138 · 17 comments ·

  • Support adaptive resampling for any transform
    Open
    • Is something wrong?
    idea

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    d3/d3-geo#134 · 9 comments · 1 reaction ·

  • projection.copy?
    Open
    • Is something wrong?
    idea

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    d3/d3-geo#123 · 4 comments · 9 reactions ·

  • Convenience “unstitch” for getting back WGS84?
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 35/100

    d3/d3-geo#113 · 1 comment · 1 reaction ·

  • path.contains?
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    d3/d3-geo#109 · 1 comment ·

  • Projection.stream only supports points with x and y (no z)
    Open
    • Is something wrong?
    idea

    Difficulty 4/5 3-5 days Newbie friendliness 25/100

    d3/d3-geo#96 · 4 comments · 1 reaction ·

  • d3.geoGraticule should have a configurable latitude precision.
    May be free again Open
    • Is something wrong?
    idea

    d3/d3-geo#95 · 2 comments · 1 assignee ·

  • New graphics pipeline?
    Open
    • Is something wrong?
    idea

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    d3/d3-geo#78 · 7 comments ·

  • Don’t reassign listener methods?
    Open
    • Is something wrong?
    idea

    Difficulty 4/5 3-5 days Newbie friendliness 15/100

    d3/d3-geo#14 · 7 comments ·

  • d3.geoBounds gives incorrect bounds for one of the polygons in world-atlas countries50, Fiji)
    Possibly taken Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    d3/d3-geo#243 · 1 comment ·

  • Expose Fit Internals
    Possibly taken Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    d3/d3-geo#217 · 7 comments ·

  • Support Puerto Rico in Albers USA projection
    Possibly taken Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    d3/d3-geo#152 · 21 comments · 9 reactions ·

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