1. Enter scale at the bottom command line and press Enter.

2. Select the graph to be scaled, and then click Enter again.

3. Specify the base point of scaling (scaling at this point).

4. Enter the scaling factor for the graphics scaling.

CAD (Chinese name: Computer Aided Design, English full name: Computer Aided Design) refers to the technology that uses computer software to make and simulate physical design to show the appearance, structure, color, texture and other characteristics of newly developed goods.

The earliest application of CAD was in automobile manufacturing, aerospace and electronic industry production of large companies. Later, with the evolution of CAD technology and the change of computer price, its application scope gradually widened and it was widely used in printing, publishing and many other fields.