1,2,3-perspective and cabinet projection

Hey,

I'm really new to autocad and just started to pick up the basics. The
one thing I couldn't find was how to create from existing model:

* two-point perspective (xy perspective)
* three-point perspective (xyz perspective)

The real perspective that autocad uses is the one-point perspective
(railroad closes at horizon).

Second thing I was unable to find was how to make cabinet projection -
angle between xy axis 90 and between yz, xz 135 degrees. How can I
change projection angles between axis.

I'm just hoping these things can be done with autocad because I'm have
to show my works on friday

Thanks in advance,
Taavi

 

The VPOINT (View Point) command has some of the features you want.
Also, the DVIEW (Dynamic View) command will enable perspective view
when ever you enter anything for the Distance value. Also, the
sub-command zoom sets the angle of view by entering a value for a 35mm
cameral lense equivalent.

One more method is to start the ORBIT command, then right click
inside the circle to bring up a menu which will let you set some of
these things.

Joe Dunfee

 

You can't make a cabinet drawing in autocad and that's because a
cabinet drawing (or cavalier drawings) aren't created from real
projections geometry.

Autocad's perspective is real multipoint perspective. Two point
perspective & three point perspective are just simplified systems that
were developed for drafting boards.

For trimetric projection do the following:

Use the VPOINT command followed by the "R" option to enter the azimuth
angle and the elevation angles that you want to use to view the model.

Use these values as starting points: 300 degrees & 30 degrees.

If you want isometric looking views use 315 & 35.26439.

If you want to view the object from below use a negative elevation
angle.

The orbit command is handy but I find the vpoint approach faster and
more easily repeatable.

Use the DVIEW command to get into the prespective mode.

Have fun.

Art