Where do I go wrong ?

I wrote a little something to create flanges with just a few questions. The
code is simple enough, but the holes on the bolt circle are always arrayed
from a center point which is a hole radius away from the diameter center.
Confused ? Good. Here's the code, try it out. It's french, but most of you
shouldn't have a problem with that.


And yes, Bride means flange.

Thanx

Dr Fleau


;;; Bride.lsp
;;; Dessine une bride avec quelques questions
;;; Trace les centres des cercles avant de faire un array
(DEFUN c:bride (/ out in bc num trou cen cen1 cir1 cir2 cir3)
(SETQ out (GETREAL "Donne le diamètre EXTÉRIEUR : ")
in (GETREAL "Donne le diamètre INTÉRIEUR :")
bc (GETREAL "Donne le diamètre de perçage : ")
num (GETINT "Combien de trous : ")
trou (GETREAL "Quel diamètre de trou : ")
cen (GETPOINT "Point d'insertion : ")
) ;_ end of setq
(IF (NOT (AND (TBLSEARCH "layer" "Axe")
(TBLSEARCH "layer" "Pièce")
) ;_ END and
) ;_ END not
(PROGN
(COMMAND "layer" "m" "Axe" "c" "Red" "" "l" "center" "" "") ;_ END
COMMAND
(COMMAND "layer" "m" "Pièce" "c" "Magenta" "" "l" "continuous" "" "")
;_ END COMMAND
) ;_ END progn
)
(SETVAR "OSMODE" 0)
(setvar "CLAYER" "Pièce")
(COMMAND "_.circle" cen "D" out)
(COMMAND "_.circle" cen "D" in)
(SETQ cen1 (POLAR cen (/ PI 2) (/ bc 2)))
(COMMAND "_.circle" cen1 "D" trou)
(setq cir1 (entlast))
(setvar "CLAYER" "AXE")
(command "_.line" (polar cen1 (/ pi 2) (/ trou 2)) (polar cen1 (/ pi -2)
(/ trou 2)) "")
(setq cir2 (entlast))
(command "_.line" (polar cen1 pi (/ trou 2)) (polar cen1 0.0 (/ trou 2))
"")
(setq cir3 (entlast))
(setvar "OSMODE" 0)
(command "_.regen")
(COMMAND "_.array" cir1 cir2 cir3 "" "P" cen num 360 "N")
(setvar "CLAYER" "Pièce")
(SETVAR "OSMODE" 183)
(PRINC)
) ;_ end of defun