Map projections

Tobias Jung – URL: https://map-projections.net

Comparison: Smyth equal-surface vs. Trystan Edwards

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Projection Informations


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

	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.

1. Comparison: Physical Map – scaled to fit

Smyth equal-surface

Smyth equal-surface

Trystan Edwards

Trystan Edwards

Smyth equal-surface CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards CC BY-SA

CC BY-SA

2. Comparison: Political Map – scaled to fit

Smyth equal-surface

Smyth equal-surface

Trystan Edwards

Trystan Edwards

Smyth equal-surface CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards CC BY-SA

CC BY-SA

3. Comparison: Silhouette Map – scaled to fit

Click on projection’s name to hide it
Grey areas: Superimposition of projections

Smyth equal-surface Silhouette Map

Trystan Edwards Silhouette Map

Smyth equal-surface Silhouette Map CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards Silhouette Map CC BY-SA

CC BY-SA

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

Smyth equal-surface

Smyth equal-surface Tissot Indicatrix

Trystan Edwards

Trystan Edwards Tissot Indicatrix

Smyth equal-surface Tissot Indicatrix CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards Tissot Indicatrix CC BY-SA

CC BY-SA

5. Comparison: Physical Map – scaled to same width

Smyth equal-surface

Smyth equal-surface

Trystan Edwards

Trystan Edwards

Smyth equal-surface CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards CC BY-SA

CC BY-SA

6. Comparison: Political Map – scaled to same width

Smyth equal-surface

Smyth equal-surface

Trystan Edwards

Trystan Edwards

Smyth equal-surface CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards CC BY-SA

CC BY-SA

7. 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

Smyth equal-surface Silhouette Map CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards Silhouette Map CC BY-SA

CC BY-SA

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

Smyth equal-surface

Smyth equal-surface Tissot Indicatrix

Trystan Edwards

Trystan Edwards Tissot Indicatrix

Smyth equal-surface Tissot Indicatrix CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards Tissot Indicatrix CC BY-SA

CC BY-SA

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

Smyth equal-surface

Smyth equal-surface Tissot Indicatrix

Trystan Edwards

Trystan Edwards Tissot Indicatrix

Smyth equal-surface Tissot Indicatrix CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards Tissot Indicatrix CC BY-SA

CC BY-SA

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

Smyth equal-surface

Smyth equal-surface Tissot Indicatrix

Trystan Edwards

Trystan Edwards Tissot Indicatrix

Smyth equal-surface Tissot Indicatrix CC BY-SA

CC BY-SA

Tobias Jung Trystan Edwards Tissot Indicatrix CC BY-SA

CC BY-SA