Tài liệu Drawing in Three Dimensions

​Using DVIEWTo create a perspective view, type dview ↵ on the command line. At the Select
objects or <use DVIEWBLOCK>: prompt, select the objects you want to include
in the process of defining the perspective view.
You should select as few objects as you need to visualize the final result if you have
a complex drawing. If you want to select the entire drawing, type all ↵ even if the
current view doesn’t display the entire drawing.
Press Enter if you don’t want to choose any objects. AutoCAD substitutes a block
called dviewblock, which is a simple house. You can use the house to set your perspective
view.
If you want, you can create your own block and name it dviewblock. Create it with
X, Y, and Z dimensions of 1. When you press Enter at the Select objects or
<use DVIEWBLOCK>: prompt, AutoCAD looks for dviewblock and uses it to display
the results of the perspective view settings.
Understanding the DVIEW options
DVIEW comes with a bewildering array of options that you use to specify the angle
and distance of the view. To use these options, start the DVIEW command and
select the objects you want to view or press Enter. You see the following prompt:
Enter option
[CAmera/TArget/Distance/POints/PAn/Zoom/TWist/CLip/Hide/Off/
Undo]:
You use these options to define the perspective view, as explained in the following
sections