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Creates a shadow band, with output 1 where pixels are illumunated and 0 where they are shadowed. Takes as input an elevation band, azimuth and zenith of the light source in degrees, a neighborhood size, and whether or not to apply hysteresis when a shadow appears. Currently, this algorithm only works for Mercator projections, in which light rays are parallel.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[],["The `HillShadow` algorithm generates a shadow band (1 for illuminated, 0 for shadowed pixels) for Mercator projections. It requires an elevation image, light source azimuth and zenith angles, and a neighborhood size. Hysteresis can be optionally applied for potentially improved visuals. The algorithm's inputs include the elevation image, azimuth (degrees), zenith (degrees), neighborhood size, and a boolean for hysteresis, outputting a shadow band image.\n"]]