| 摘要 |
<p>PURPOSE:To independently move a cursor for specifying a start point even if the other cursor is moved in order to specify an end position by constituting a display screen so that the start and end positions can be independently specified by two different cursors. CONSTITUTION:Two cursors are displayed on one screen and respective cursors Ps1, Pe1 are moved by individual pointing device 2, 3 so that both the cursors Ps1, Pe1 are simultaneously moved to simultaneously determine both cursor positions. When an operator is to plot a straight line L4, respective mouses 2, 3 are moved by the left and right hands to move the start cursor Ps1 and the end cursor Pe1 to positions Ps2, Pe2. Thereby, both the cursors Ps1, Pe1 are simultaneously moved, a straight line to be plotted is moved and the necessary straight line is finally obtained. Consequently, the input efficiency of coordinates can be improved and the operability and using procedure of the device can be improved.</p> |
