Intends for digitization of orthogonal charts (from books, papers). The input graph image file should be in bmp, jpg, tif or gif format. Image of the graph can be scanned or pasted from clipboard. A bad image map can be edited and rotated. A tie to real coordinates of chart implements by setting of two points. There are three modes of digitization. Automatic digitization - you define curve color and area of search. Semi-automatic digitization - when you move cursor on (along) a curve. Manual digitization - you click in curve, the value is recorded in the table. Data Y(X) from the table may be displaed as a graph or saved in data-file format.