ST_ForceCollection
戻る 8.6. ジオメトリエディタ 次へ

名前

ST_ForceCollection — Orients all exterior rings clockwise and all interior rings counter-clockwise.

概要

geometry ST_ForceCollection(geometry geomA);

説明

Forces (Multi)Polygons to use a clockwise orientation for their exterior ring, and a counter-clockwise orientation for their interior rings. Non-polygonal geometries are returned unchanged.

This function supports 3d and will not drop the z-index.

This function supports M coordinates.

関連情報

ST_ForceCollection , ST_Polygonize, ST_Reverse

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ST_ForceCollection ホーム ST_ForceSFS