Abstract: It is significant to accurately print out text height, line width and drawing scales of figures
in textbooks on engineering drawing and courseware. In order to precisely print illustrations in these
documents, features of displaying figures, line width of drawing objects, and character height in
drawings are studied from several concepts about plotting based on analysis of the making course of
drawings by means of AutoCAD software embedded in scientific and technological documents whose
components of pages are predominantly words and characters. The study shows that preliminary
dimensions of figures measured by Word software should be regarded as physical paper size of
drawings and canvas for painting, and printing scale of drawings and properties of line weight and
height of text characters in drawings ought to be exactly set, by which accurate drawings up to the
national standards about engineering drawings in documents can be printed out.

Key words: computer application, precise plotting of drawings, analysis of methods of making figures;
AutoCAD drawing