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Smyth equal-surface vs. Trystan Edwards

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Projections markes with asterisks [*] lack silhouette and Tissot maps.
Marked with hash [#]: Additional image of projection (useful for certain comparisions).

  Smyth equal-surface Trystan Edwards
Creator Charles Piazzi Smyth (1870) Trystan Edwards (1953)
Group Cylindric Cylindric
Property Equal-area Equal-area
Other Names
  • Craster rectangular
Remarks Cylindrical equal-area with standard parallels at 37°04′17″ north and south (= ±37,07139°).
Cylindrical equal-area with standard parallels at 37°24′ North/South (= ±37.4°).


recommended comparisons Hobo-Dyer
Trystan Edwards
Hobo-Dyer
Smyth equal-surface
This pairing is among the list of recommended pairings – but why?
These two projections nearly identical, so you might spot the differences in direct comparision only.
Remark: On these two projections, »scaled to fit« and »scaled to same width« will be quite identical!

1. Comparison: Physical Map – scaled to fit

Smyth equal-surface
Smyth equal-surface
Trystan Edwards
Trystan Edwards

2. Comparison: Silhouette Map – scaled to fit

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Grey areas: Superimposition of projections
Smyth equal-surface Silhouette Map
Trystan Edwards Silhouette Map

3. Comparison: Tissot Indicatrix, 30° – scaled to fit

Smyth equal-surface
Smyth equal-surface Tissot Indicatrix
Trystan Edwards
Trystan Edwards Tissot Indicatrix

4. Comparison: Physical Map – scaled to same width

Smyth equal-surface
Smyth equal-surface
Trystan Edwards
Trystan Edwards

5. Comparison: Silhouette Map – scaled to same width

Click on projection’s name to hide it
Grey areas: Superimposition of projections
Smyth equal-surface Silhouette Map
Trystan Edwards Silhouette Map

6. Comparison: Tissot Indicatrix, 30° – scaled to same width

Smyth equal-surface
Smyth equal-surface Tissot Indicatrix
Trystan Edwards
Trystan Edwards Tissot Indicatrix

7. Comparison: Tissot Indicatrix, 15° – scaled to fit

Smyth equal-surface
Smyth equal-surface Tissot Indicatrix
Trystan Edwards
Trystan Edwards Tissot Indicatrix

8. Comparison: Tissot Indicatrix, 15° – scaled to same width

Smyth equal-surface
Smyth equal-surface Tissot Indicatrix
Trystan Edwards
Trystan Edwards Tissot Indicatrix
 

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