1. Before drawing, decide a scaling ratio according to the actual size of the drawn object (it can be completely printed on the drawing, and if there is GB, choose an appropriate scaling standard from GB). Menu-Format-Label Style, click Modify, click Primary Unit, and set the scale factor in the measurement unit scale to 1.

The graphic boundary set is a little larger than the drawing (because the border and title bar of the drawing should be added, and a standardized drawing should leave room for the secretary to review the opinions of signature and joint review).

2. Setting method of graphic boundary: Format/graphic boundary command, enter absolute coordinate values of 0.000 and 0.000 in the command bar under the interface (it can also be determined directly, because the default coordinate value in the lower left corner is this value. If it is a 3D map, add Z coordinate values) /OK/ Enter absolute coordinate values in the upper right corner, such as 6000.000,4000.000/ok. This setting can draw graphics equal to or less than 6000mm * 4000mm, including borders.

Third, when modifying the drawing scale, first cover the drawing with a rectangular box close to the normal drawing scale (420,297), and then divide the length or width of the rectangular size by 20 to know the drawing format. Then, in turn, make a corresponding drawing frame and title bar, enlarge it 20 times and cover the drawing. However, before printing, you must be OK.