orientation

fun orientation(x: Float, y: Float): Int
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Returns -1 if the point is clockwise (right) from us. Returns +1 if the point is counterclockwise (left) from us. 0 if the point is collinear. https://github.com/locationtech/jts/blob/master/modules/core/src/main/java/org/locationtech/jts/algorithm/CGAlgorithmsDD.java#L47-L53