Compare Map Projections

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Gall Isographic vs. Equirectangular (0°)

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Projection No. 2:

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  Gall Isographic Equirectangular (0°)
Creator James Gall (1855) Marinus of Tyre (about AD 100)
Group Cylindric Cylindric
Property Equidistant Equidistant
Other Names
  • Plate carrée
  • Equidistant cylindrical projection
Remarks Gall Isographic is the equirectangular projection with standard parallels at 45° North/South. Equidistant cylindrical projection with the equator as standard parallel.
recommended comparisons Equirectangular (0°)
Equirectangular (35.6°)
Gall Isographic
This pairing is among the list of recommended pairings – but why?
It’s the same projection, but using different standard parallels.

1. Comparison: Physical Map

Gall Isographic
Gall Isographic
Equirectangular (0°)
Equirectangular (0°)

2. Comparison: Political Map

Gall Isographic
Gall Isographic
Equirectangular (0°)
Equirectangular (0°)

3. Comparison: Silhouette Map

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Grey areas: Superimposition of projections
Gall Isographic Silhouette Map
Equirectangular (0°) Silhouette Map

4. Comparison: Tissot Indicatrix, 30°

Gall Isographic
Gall Isographic Tissot Indicatrix
Equirectangular (0°)
Equirectangular (0°) Tissot Indicatrix

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