Viewport 浮动视口

Each viewport acts as a display portal from the paper layout to the geometry in model space

Creating multiple viewports in a single layout, can display different aspects of the model geometry at different scales on the same page

Create viewports on a unique layer and set the properties to No Plot

Viewport Scale Factor

Specific scale compared to the paper units to display the geometry within it

Moving, Copying, and Resizing Viewports

Move:   change a viewport's position on the paper

Copy:    duplicate the viewport and its display settings to another location on the layout

Resize:  use the grips at its corners

Erasing Viewports

Since it only displays a view of the geometry from model space, deleting the viewport does not delete the geometry

Freeze Current Viewport

Display the same area of model space in different ways in each viewport

Double-click inside the viewport to make it active (current)

1. Freeze the layer in current viewport

The layer will frozen in current viewport only and remain thaw in other viewport

Viewport Override

Override layer properties in each viewport to have them appear differently in a viewport than they do in model space

Four properties can control are VP Color, VP Linetype, VP Lineweight, and VP Plot Style