Use the mouse to zoom in or out in the 3D viewer.
1. Click Zoom in the Tools toolbar or select Zoom from the Interaction pop-up menu. The mouse pointer changes into a double arrow.
2. Do one of the following:
— Scroll the mouse wheel up to zoom in or down to zoom out.
— Click the left mouse button and hold. Drag the mouse up to zoom in [+] or down to zoom out [-].
Tip
To change between interaction or rotation mode and zoom mode, press [Shift]. The cursor changes into the zoom cursor. Zoom by dragging the mouse or using the mouse wheel or keyboard shortcuts. You remain in zoom mode as long as you keep holding down [Shift].