| 摘要 |
PURPOSE:To improve the appearance of an outputted diagram by constituting a device so that the regularity of the pattern of a drawn picture at polygonal point can be maintained when polygonal graphic (two-dimensional line graphic) is outputted by the pattern of the drawn picture with regularity. CONSTITUTION:The titled device is provided with a pattern memory 3 storing the prescribed pattern of the drawn picture expressed by one-dimensional line graphic intermitting with regularity as binary data being the unit of picture elements, and a write and read circuit 5 which reads out the patterns stored in the pattern memory 3 sequentially from read start address and writes them at addresses in an image memory 1 specified by an address specification circuit 2. Everytime one two-dimensional vector graphic is drawn, the patterns are not read from the leading addresses in the pattern memory, but they are read out from the read start address set appropriately from an address setting part 4, whereby the regularity of the pattern of the drawn picture at the polygonal point can be maintained. |
