我们还通过使用屏幕坐标（请参阅helpcoordinates ，获得关于不同类型坐标系统的讨论）设置原点来控制曲线图显示的位置。
We also control where the graph appears by setting the origin using screen coordinates (see help coordinates for a discussion on the different kinds of coordinate systems).
由于我将立方体的中心点放在坐标系原点位置处，因此立方体的各边长应为 2 个单位。
Remember that I placed the cube's center at the coordinate system's origin; therefore, the cube's edges will be two units long.
这些坐标点的原点是父对象的位置。
The origin for these coordinates is the location of the parent object.
方法：以股骨头、髋臼的中心为原点建立股骨及骨盆的右手正交坐标系，将髋关节周围起于骨盆的肌肉的股骨、骨盆附着点的三维坐标位置进行了测量定位。
Methods: By reference to the right-handed coordinate system, the three-dimensional positions of the femoral and pelvic attachment of the muscles related to the hip joint were all measured.
原点相对于屏幕的位置因指定的是屏幕坐标还是工作区坐标而异。
The location of the origin, relative to the screen, will vary depending on whether you are specifying screen or client coordinates.
特别注意：节点坐标系的原点默认是其左下角位置。
Converts a Point to node (local) space coordinates. The result is in Points.
特别注意：节点坐标系的原点默认是其左下角位置。
Converts a Point to node (local) space coordinates. The result is in Points.
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