点てん群ぐん

noun

point group

Mathematics term: a set of symmetry operations that leave at least one point fixed, used in crystallography and molecular symmetry.

• 結けっ晶しょう構こう造ぞうは点てん群ぐんによって分ぶん類るいされる。

  Crystal structures are classified by point groups.

noun

point cloud

Computing term: a set of data points in space, often produced by 3D scanners or LiDAR.

• LiDARで取しゅ得とくした点てん群ぐんデータを処しょ理りする。

  Process point cloud data acquired by LiDAR.