A nonconformal, equal-area projection which is a special case of the Bonne projection where one of the poles is taken as the standard parallel. Because of its heart shape, this projection is sometimes also called "cordiform."
Werner Projection
See also
Bonne Projection, Map ProjectionExplore with Wolfram|Alpha
References
MathWorks. "Mapping Toolbox: Bonne Projection." http://www.mathworks.com/access/helpdesk/help/toolbox/map/wernerprojection.shtml.Referenced on Wolfram|Alpha
Werner ProjectionCite this as:
Weisstein, Eric W. "Werner Projection." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/WernerProjection.html