| 摘要 |
<p>PURPOSE:To easily and exactly input graphic data loaded on a cross-ruled lattice by providing a device equipped with a function to round input coordinates on the cross-ruled lattices of a cross-ruled sheet and a device equipped with a function to match the display onto this cross-ruled sheet. CONSTITUTION:The coordinates directly inputted from a transparent sheet 11 fixed on a tablet 2a by a graphic input instructor 3 are read by coordinate value read part 14, converted to the cross ruled sections of the transparent sheet 11 by a coordinate input conversion part 15 and returned to a command control part 12 as values rounded to the coordinate values for the unit of one cross-ruled section corresponding to the rate of enlarging the display by an input coordinate unit part 16. This control part 12 prepares the graphic data from the inputted coordinates, registers this graphic data base 18 by a data base control part 17 and sends the data to a drawing coordinate transformation part 19. In such transformation part 19, the coordinates are transformed so that the cross-ruled sections of the sheet 11 can be coincident with the coordinate system of a display screen 2b, and the data is drawn through a drawing command transmission part 20 onto the display screen 2b. Thus, the coordinates are exactly rounded into those on the cross-ruled sections and drawn.</p> |
