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[Raster] Avoid undefined behaviour with parallel lines #340

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commented Nov 21, 2018

Trac: https://trac.osgeo.org/postgis/ticket/4249

Avoids division by zero by checking the slopes with a multiplication instead of a division. It also simplifies the operations since you don't need a special case of vertical parallelism.

@strk strk closed this in ae28b2d Nov 21, 2018

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