Seems to be a drawing software, have to understand the details of the talk, thank you!
You can also select the graphics, the mouse on the lower right corner of the pattern, the mouse becomes a double arrow when you can drag the mouse to zoom in or out of the image.
Carved hollow pattern, it is recommended to use Wentai can, very simple. After the pattern is opened, select the right mouse button, there is a modified graphics parameters, can be used to modify the size of the graphics.
