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Diffstat (limited to 'docs/source/operations/projections/isea.rst')
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1 files changed, 8 insertions, 8 deletions
diff --git a/docs/source/operations/projections/isea.rst b/docs/source/operations/projections/isea.rst index 968d468b..adb703a1 100644 --- a/docs/source/operations/projections/isea.rst +++ b/docs/source/operations/projections/isea.rst @@ -4,16 +4,16 @@ Icosahedral Snyder Equal Area ******************************************************************************** -The Icosaheadra Snyder Equal Area projection is a series of equal-area map -projections. Lines of constant distortion follow approximately oval or -rectangular paths instead of the circles of the Lambert Azimuthal Equal-Area -projection or the straight lines of the Cylindrical Equal-Area projection. The -projection series permits design of equal-area maps of oblong regions with less -overall distortion of shape and scale than equal-area maps on other projections -:cite:`Snyder1988`. +Snyder's Icosahedral Equal Area map projections on polyhedral globes for the +dodecahedron and truncated icosahedron offer relatively low scale and +angular distortion. The equations involved are relatively straight-forward, +and for certain instructional tools and databases, the projections are useful +for world maps. The interruptions remain a disadvantage, as with any low-error +projection system applied to the entire globe :cite:`Snyder1992`. + +---------------------+----------------------------------------------------------+ -| **Classification** | Polyhedral, equal Area | +| **Classification** | Polyhedral, equal area | +---------------------+----------------------------------------------------------+ | **Available forms** | Forward, spherical | +---------------------+----------------------------------------------------------+ |