Directory of Map Projections

What is a projection?

Previous | Next

Putniṇš P6

Classifications

pseudocylindric
equal-area

Graticule

Meridians: Central meridian is a straight line half as long as the equator. Other meridians are equally spaced portions of hyperbolas concave toward the central meridian.
Parallels: Unequally spaced straight parallel lines. Perpendicular to the central meridian.
Poles: Points.
Symmetry: About the central meridian or the equator.

Scale

Correct along 29°42′N/S parallels. Constant along any given latitude; same for the latitude of opposite sign.

Distortion

Free of distortion only at 29°42′N/S on central meridian. Distortion is very low along equator and the central meridian and increasing away from those regions.

Similar projections

Similar to sinusoidal, Craster parabolic, many others, but uses portions of hyperbolic curves.

Origin

Presented by Reinholds V. Putniṇš, 1934.

Description ©2010–2020 Mapthematics LLC.