Version: 2018.1

GeometryUtility.TryCreatePlaneFromPolygon

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public static bool TryCreatePlaneFromPolygon (Vector3[] vertices, out Plane plane);

Parameters

verticesAn array of vertex positions that define the shape of a polygon.
planeIf successful, a valid plane that goes through all the vertices.

Returns

bool Returns true on success, false if the algorithm failed to create a plane from the given vertices.

Description

Creates a plane from a given list of vertices. Works for concave polygons and polygons that have multiple aligned vertices.

Does not work for self intersecting polygons since the direction of the plane would be ambigious. Must have at least 3 vertices and non zero area to work.