how to do the distance exchange on sperical surfacegreenspun.com : LUSENET : Global Grids: Issues and Applications : One Thread
On planar,we often use distance exchange to deal with Raster data. The rasters are square (regular). But the spherical surface can not be regular tessellation, such as QTM, etc. How to do distance exchange to deal with spherical grid (QTM) data like planar.
-- Zhao Xuesheng (firstname.lastname@example.org), November 18, 1999