| 摘要 |
PURPOSE:To execute the operation of picture editing efficiently, by setting and changing an inserting part or a pickup part of picture data to a memory externally. CONSTITUTION:In expanding data with a designated file No. from a disc to an image memory, an index section is obtained with an open processing to obtain an index block of the file No. The address on the image memory is calculated with X0, X1, Y0 and Y1 data of the block to start the transfer from an actual disk to the image memory. If the picture data is expanded to any position of a two-dimensional coordinate space, is determined with two variables of the X0 and Y0. Thus, when the expanded coordinate is desired to be changed, only the index information can arbitrarily be changed with the position change instruction. |
