| 摘要 |
A coordinate input apparatus, such as a mouse, having a hand-operated body to input coordinate information of a work plane. The body includes a bottom portion having first, second, third and fourth input planes which are not all located in the same plane. The first, second and third input planes correspond, respectively, to an X-Y coordinate plane, a Y-Z coordinate plane and an X-Z coordinate plane of a three-dimensional coordinate space. The X-Y coordinate plane, the Y-Z coordinate plane and the X-Z coordinate plane are individually selectable by selecting the corresponding input plane. Coordinate information of a work plane is input in a respective coordinate plane by selecting the coordinate plane. The fourth input plane includes a plane inclination detection unit for inputting an inclination of a work plane with respect to a selected coordinate plane.
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