To add to Kens help:
You can also put this together with a #switch. It just gets more lengthy
script-wise but once made saves time. Making a comment line showing a
listing of what's-what for each switchable view helps too.

//BEGIN
#declare CLL = 1; //use one of the numbered sets from below.

 #declare Loc1 = <0,1,-10>;
 #declare Loc2 = <1,1,-10>;
 #declare Loc3 = <0,1,-15>;
 #declare Loc4 = <1,1,-18>;
 #declare Loc5 = <1,1,-17>;
 
 #declare Look1 = <0,1,1>;
 #declare Look2 = <1,1,1>;
 #declare Look3 = <0,1,5>;
 #declare Look4 = <1,1,9>;
 #declare Look5 = <1,1,5>;
 
 camera{
 location
#switch (CLL) //your switchable parameter
#case (1)
 Loc1
#break
#case (2)
 Loc2
#break
#case (3)
 Loc3
#break
#case (4)
 Loc4
#break
#case (5)
 Loc5
#break
#end

 look_at
#switch (CLL)
#case (1)
 Look1
#break
#case (2)
 Look2
#break
#case (3)
 Look3
#break
#case (4)
 Look4
#break
#case (5)
 Look5
#break
#end

}
//END

Ken wrote:
> 
> Mike Metheny wrote:
> >
> > When working through a scene, I usually want to zoom in on various parts of
> > my scene.  Right now I have various camera declarations commented out using
> > /* */, and switch between them as needed.  How do I declare various camera
> > positions/lookats in one easy declaration so i can just change camera_1 to
> > camera_2 or whatever to switch?  I hope I'm making myself clear.
> >
> > Thanks guys!
> >
> > Mike Metheny
> 
> You can do it like this --
> 
> #declare Loc1 = <0,1,-10>;
> #declare Loc2 = <1,1,-10>;
> #declare Loc3 = <0,1,-15>;
> #declare Loc4 = <1,1,-18>;
> #declare Loc5 = <1,1,-17>;
> 
> #declare Look1 = <0,1,1>;
> #declare Look2 = <1,1,1>;
> #declare Look3 = <0,1,5>;
> #declare Look4 = <1,1,9>;
> #declare Look5 = <1,1,5>;
> 
> camera{location Loc1 look_at Look1}
> 
> This way once you have adjusted the numbers in the vectors
> in the #declared statments you need change only two numbers,
> for Loc and Look, and you have a new view.
> 
> --
> Ken Tyler
> 
> tyl### [at] pacbellnet

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
=Bob

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