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Fil avatar Fil commented on May 22, 2024

Confirmed. And it reminds me that the forward projection is wrong too (#178).

from d3-geo-projection.

Fil avatar Fil commented on May 22, 2024

Related issue: when the connection between lobes is not made on the Equator, the map is wrong. The following video demonstrates an (exaggerated) view of the problem: the connections between the two lobes on the left should be a vertex in projected space, not a segment (like they are on the right).

Enregistrement.de.l.ecran.2021-01-17.a.22.24.54.mov

Remarks:

  • it seems to me that in this case, the "lobes" are not enough to define the projection; if we want to define this properly, we would also need to define an origin.
  • None of the examples in README have this problem, they are all joining lobes on the Equator.
  • The projection in https://observablehq.com/@d3/interrupted-mollweide-oceans uses 5° and the problem is there technically, but doesn't show for such a small angle.

from d3-geo-projection.

Related Issues (20)

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