Winkel tripel projection

The angle - Tripel projection is a 1921 by Oswald angle ( 1874-1953 ) published maps network design for the entire Earth. It represents a good compromise between space and conformality and therefore belongs to the world map projections most used. Compared to similar Robinson projection, it achieves lower distortion, but this is the situation fidelity, so that curved parallels emerge. Compared to equal-area projections as the Mollweide or the Eckert IV projection it avoids their relatively strong shape and angle distortions, but does not ensure complete surface fidelity.

The projection formula is the arithmetic mean of the rectangular planar map and the Aitov projection:

• Is the longitude ( relative to the central meridian )
• Is the latitude
• Is the latitude of the standard parallels the planar map. Angle chose for his projection.
• Is the non- normalized sinus cardinalis.

Angle presented simultaneously before two other cards network designs. These are called angle I called ( the arithmetic mean of the planar map and the Sinusoidal projection) and angle II. The Tripelprojektion is therefore also called angle III.