My Projection Collection:
Compare Projections
Smyth equal-surface vs. Trystan Edwards
Smyth equal-surface | Trystan Edwards | |
---|---|---|
Creator | Charles Piazzi Smyth (1870) | Trystan Edwards (1953) |
Group | Cylindric | Cylindric |
Property | Equal-area | Equal-area |
Other Names |
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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. |
1. Comparison: Physical Map – scaled to fit
2. Comparison: Political Map – scaled to fit
Smyth equal-surface
![Smyth equal-surface](/img/political/smyth.png)
Trystan Edwards
![Trystan Edwards](/img/political/trystan-edwards-snyder.png)
3. Comparison: Silhouette Map – scaled to fit
![Smyth equal-surface Silhouette Map](/img/rot/smyth.png)
![Trystan Edwards Silhouette Map](/img/gruen/trystan-edwards-snyder.png)
4. Comparison: Tissot Indicatrix, 30° – scaled to fit
Smyth equal-surface
![Smyth equal-surface Tissot Indicatrix](/img/tissot-30/smyth.jpg)
Trystan Edwards
![Trystan Edwards Tissot Indicatrix](/img/tissot-30/trystan-edwards-snyder.jpg)
5. Comparison: Physical Map – scaled to same width
Smyth equal-surface
![Smyth equal-surface](/img/jpg-w/smyth.jpg)
Trystan Edwards
![Trystan Edwards](/img/jpg-w/trystan-edwards-snyder.jpg)
6. Comparison: Political Map – scaled to same width
Smyth equal-surface
![Smyth equal-surface](/img/political-w/smyth.png)
Trystan Edwards
![Trystan Edwards](/img/political-w/trystan-edwards-snyder.png)
7. Comparison: Silhouette Map – scaled to same width
![Smyth equal-surface Silhouette Map](/img/rot-w/smyth.png)
![Trystan Edwards Silhouette Map](/img/gruen-w/trystan-edwards-snyder.png)
8. Comparison: Tissot Indicatrix, 30° – scaled to same width
Smyth equal-surface
![Smyth equal-surface Tissot Indicatrix](/img/tissot-30-w/smyth.jpg)
Trystan Edwards
![Trystan Edwards Tissot Indicatrix](/img/tissot-30-w/trystan-edwards-snyder.jpg)
9. Comparison: Tissot Indicatrix, 15° – scaled to fit
Smyth equal-surface
![Smyth equal-surface Tissot Indicatrix](/img/tissot-15/smyth.jpg)
Trystan Edwards
![Trystan Edwards Tissot Indicatrix](/img/tissot-15/trystan-edwards-snyder.jpg)
10. Comparison: Tissot Indicatrix, 15° – scaled to same width
Smyth equal-surface
![Smyth equal-surface Tissot Indicatrix](/img/tissot-15-w/smyth.jpg)
Trystan Edwards
![Trystan Edwards Tissot Indicatrix](/img/tissot-15-w/trystan-edwards-snyder.jpg)