It is unknown on which geometry a cursor will point at a given time.
在一个给定的时刻，无法确定鼠标会指向哪个几何图形。
Determines whether a point or geometry value is within the bounds of the visual object.
确定点或几何图形值是否在可视对象的边界内。
Determines whether a point or geometry value is within the bounds of the visual object.
确定点或几何图形值是否在可视对象的边界内。
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