Display of Pixel Loss and Replication in Reprojecting Raster Data from The Sinusoidal Projection
نویسنده
چکیده
Recent studies show the sinusoidal projection to be a superior planar projection for representing global raster datasets. This study uses the sinusoidal projection as a basis for evaluating pixel loss and replication in eight other planar map projections. The percent of pixels represented accurately as a single pixel when projected from the sinusoidal to one of the other projections ranged from a low of about 58% for the Van der Grinten projection to a high of about 83% for the Mollweide projection. The graphic display of these losses and gains of pixels had revealing patterns, for example, large values of replication in the higher latitudes of cylindrical projections.
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