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The Waterman "Butterfly" World Map is a map projection created by Steve Waterman. Waterman first published a map in this arrangement in 1996. The arrangement is an unfolding of a polyhedral globe with the shape of a truncated octahedron, evoking the butterfly map principle first developed by Bernard J.S. Cahill (1866–1944) in 1909
Waterman butterfly projection: Polyhedral Compromise Steve Waterman: Projects the globe onto a truncated octahedron with symmetrical components and contiguous land masses that may be displayed in various arrangements. 1973 Quadrilateralized spherical cube: Polyhedral Equal-area F. Kenneth Chan, E. M. O'Neill 1943 Dymaxion map: Polyhedral Compromise
In the same work as the hemisphere-in-a-square projection, Adams created maps depicting the entire globe in a rhombus, hexagon, and hexagram. [7] [8] Bernard J. S. Cahill invented the "butterfly map", based on the octahedron, in 1909. This was generalized into the Cahill–Keyes projection in 1975 and the Waterman butterfly projection in 1996.
Equal Earth projection; Equal-area projection; G. ... Waterman butterfly projection; Well-known text representation of coordinate reference systems; Winkel I projection;
Waterman Butterfly map of the world – coastlines, graticule, and indicatrices: Image title: A map of the world, showing all landmasses with 10° graticule and Tissot's indicatrices of diameter 1,000 km and spacing 30°. Coastlines precise to 110 km. Width: 1600: Height: 897.998
So, as a hint, the butterfly you need to look out for has a lot more whitespace on its wings than the other butterflies in the photo. (Meaning, less dark spots appear on the wings on the targeted ...
With that in mind, we’ve included some keto, vegan, and low-carb recipes here, like our keto fudge, our vegan brownies, and our gluten-free strawberry shortcakes.
Cahill butterfly, conformal version of the projection. 15° graticule, 157°30′E central meridian. From cover of 1919 pamphlet by Cahill, "The Butterfly Map" , 8 p. Bernard Joseph Stanislaus Cahill ( London , January 30, 1866 - Alameda County , October 4, 1944 [ 1 ] [ 2 ] ), American cartographer and architect , was the inventor of the ...