[Proj] Snyder ISEA
zhangli at supermap.com
Wed Oct 19 07:57:26 EDT 2005
Many thanks for your reply.
The acronym ISEA stands for icosahedral Snyder equal area.
I got to know ISEA at the website: http://www.sou.edu/cs/sahr/dgg/isea/isea.html
I am doing some work on hierarchical spatial partitioning method on the ellipsoid suface with equal erea.
So ,the paper An equal-area map projection for polyhedral globes maybe is very important for me.
Is there any resource code that implemented Snyder's equal-area map projection ?
======= 2005-10-18 23:46:25£º=======
>Snyder described at least three methods for creating customizable equal-area
>projections, as well as an equal-area projection for arbitrary polyhedral
>faces. I'm not aware of any of them called "ISEA".
>"Optimizing equal-area map projections using least squares", American
>Congress on Surveying and Mapping, Reno, ASPRS-ACSM 1987 Fall Convention, ACSM
>Technical Papers, p. 5-13.
>"An equal-area map projection for polyhedral globes," Cartographica, Vol. 29,
>No. 1, Spring 1992, pp. 10-21.
>"New equal-area map projections for noncircular regions," The American
>Cartographer, Vol. 15, No. 4, October 1988, pp. 341-355.
>"Minimum-error equal-area map projections," (with John A. Dyer), The American
>Cartographer, Vol. 16, No. 1, 1989, pp. 39-43.
>In a message dated 10/18/05 09:53:13, zhangli at supermap.com writes:
>> Does someone know?Snyder Equal Area (ISEA) projection? Or where can I
>> find some information about this projection ?
>> Any suggestions is appreciated.
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