| 摘要 |
<p>PURPOSE:To attain the designation of an area in two-dimensional space, which has been executed by two operations, by means of one operation by simultaneously inputting the designation of a position in two-dimensional space and an arbitrary physical quantity. CONSTITUTION:A two-dimensional direction moving distance measurement part 203 in the bottom of a mainbody 201 is brought into contact with a plane and the mainbody 201 measures a moving distance by a moving distance measurement function in an X-direction in two-dimensional space and an X-direction information function gives information of it. Then, a moving distance measurement function in a Y-direction measures the moving distance and a Y-direction information function gives information of it. A knob 204 at the upper part of the mainbody 201 inputs a third physical quantity and it is fixed to one groove by the force of a spring in a state where nothing is added to it. Then, it moves to the other groove by adding force and the area to be added is inputted as the third physical quantity.</p> |
