One, all the drawings are drawn in the model space at 1;1,
Two, in the layout space to place the frame (you want to be out of how big the drawing on how big the frame)
Three, to create a viewport adjusted to the same size as the area of your frame out of the drawing.
Four, adjust the viewport ratio can be.
Computer Aided Design (CAD-Computer Aided Design) refers to the use of computers and their graphics equipment to help designers design work. In the design usually use the computer to carry out a large number of calculations, analysis and comparison of different programs to determine the optimal program; a variety of design information, whether digital, text or graphics, can be stored in the computer's memory or external memory, and can be quickly retrieved; the designers usually start the design with sketches, sketches into a working drawing of heavy work can be given to the computer to complete; by the computer automatically produces the design results, can quickly make graphics, so that designers make timely judgments and modifications to the design; use of computers can be edited with graphics, zoom in, zoom out, pan, copy and rotate and other related graphic data processing work.