JPS6451580A - Drawing input system - Google Patents

Abstract

PURPOSE:To efficiently correct a drawing at high speed by providing a graphic changing part for enlarging/reducing and rotating the data of the required element of drawing data to be displayed on a display part and a library for storing the data of the element in a drawing input device. CONSTITUTION:Raster data is displayed on the screen of a CRT 11 through an image buffer 4 and a display memory 7. An operator inspects the presence and the absence of the corrected part of the raster data on the screen. If the corrected part exists, the operator depresses the function key of a keyboard 30 and displays the element data stored in the library 7-1 on the lower column of the display screen of the CRT 11. The operator uses the cursor of the keyboard 30 or designates an element number to select a required element, for instance, a resistance. When the cursor is moved and to an unclear part, the unclear part is erased from the display memory 7 and the unclear part is replaced by the resistance of the selected element. At before and after this replacement, the graphic deforming part 8 is operated as necessary to enlarge/reduce and rotate the graphic of the element.