error: bad argument type: 2D/3D point: nil

P1 is established by user selection, then
(setq locw (getreal "\nEnter location in from lower left corner: "))
(setq locd (getreal "\nEnter location back from lower left corner: "))
(setq d6 (* locw 12)) ;convert inches to feet
(setq d7 (* locd 12)) ;convert inches to feet
(setq insn(getpoint(polar p1(DTR 0.0)d6))) ;establish point in 'x coord
(setq sp(getpoint(polar d6(DTR 90.0)d7))) ;establish actual start point
This returns the error "; error: bad argument type: 2D/3D point: nil".
Can someone tell me what I'm doing wrong? TIA

 

Do you have the DTR function loaded ?
If not, just include these:
;; Degrees to Radians, Radians to Degrees
(defun dtr (d) (* pi (/ d 180.0)))
(defun rtd (r) (* 180.0 (/ r pi)))

Bob

 

Yes I do. It's loaded at the start. Thanks for the reply. Does it look like this should work?

 

Look at P1 (2d point, with x,y,z),
in this line:
(setq insn(getpoint(polar p1(DTR 0.0)d6)))

then check d6 in this line:
(setq sp(getpoint(polar d6(DTR 90.0)d7)))

Maybe d6 needs to be a (list..
Hint
Bob

 

I think I'm confused.........Do I not need to establish a point in the 0 coord at a given distance of d6, then move in the 90 the distance of d7 to locate my starting point? Thanks again.

 

Well,
I don't know - depends on what you are trying to do.
But, you need a (point) not a 'distance' in this line:
(setq sp(getpoint(polar d6(DTR 90.0)d7)))
The d6 has (so far) been set to a 'real', not a point.
You can 'create' the point list like:
(setq P2 (list d6 d7 0.0))
Then use P2 like:
(setq sp(getpoint(polar P2(DTR 90.0)d7)))

Bob

 

Maybe I'm mistaken... but getpoint combined with polar makes no sense on my end.

Joe Burke

 

(polar d6(DTR 90.0)d7); <---d6 should be a point