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A sphere world is a mathematical concept used in robotic motion planning. Essentially, if the environment is represented as a sphere, and the robot and obstacles within the environment are represented as spheres, then it is possible to construct navigation functions which create paths from a start position to a goal position. Although the real world is rarely composed of spheres, sphere worlds are still useful for motion planning, as they are topologically equivalent to star worlds. ==See also== *Navigation function *Sphere-world *Star world *Forest of stars *Topology 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sphere world」の詳細全文を読む スポンサード リンク
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