block by fil e5b449606ca1e3e120cda8d08a7f3351

Tetrahedral Gnomonic projection Antarctic

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The Tetrahedral Gnomonic projection, published by A. J. Potter in The Geographical Teacher, Vol. 13, No. 1 (SPRING, 1925), pp. 52-56.


Research by Philippe Rivière for d3-geo-projection issue 107.


[](https://github.com/Fil/) Questions and comments welcome on [gitter.im/d3](https://gitter.im/d3/d3), [twitter](https://twitter.com/@recifs) or [slack](https://d3js.slack.com).

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