(defun rtd (a) (* a (/ 180 pi))) ; radians to degrees
(defun getarc (/ no_arc e0 e1)
(setq no_arc T)
(while no_arc
(if (setq e0 (entsel "\nSelect arc: "))
(if (= (cdr (assoc 0 (setq e1 (entget (car e0))))) "ARC")
(setq no_arc nil)
(princ (strcat (cdr (assoc 0 e1)) ", Not an arc."))
) ; end IF
(princ " No object found.")
) ; end IF
) ; end WHILE
(setq c1 (cdr (assoc 10 e1)) ; center point
r1 (cdr (assoc 40 e1)) ; radius
a0 (cdr (assoc 50 e1)) ; start arc angle
a1 (cdr (assoc 51 e1)) ; end arc angle
i1 (if (> a1 a0) ; included angle
(- a1 a0)
(+ a1 (- (* pi 2) a0))
) ; end IF
p1 (osnap (cadr e0) "_end") ; start point pick
p2 (polar c1 a1 r1) ; end point arc
) ; end SETQ
) ; end DEFUN
(defun getset (/ h1 t1 n1 a2 _ce _hl _bm)
(setq h1 ; check current text style height
(if (zerop (cdr (assoc 40 (tblsearch "style" (getvar "textstyle")))))
(getdist p1 "\nHeight: ") ; text height
nil ; height defined by STYLE
) ; end IF
t1 (getstring T "\nText: ") ; text string
n1 1 ; counter
a2 (/ i1 (1- (strlen t1))) ; angle increment
) ; end SETQ
(if (< (distance p1 p2) 1.0E-8) ; clockwise?
(setq o1 ' ; clockwise
(setq o1 '+ ; counter-clockwise
a1 a0
) ; end SETQ
) ; end IF
(setq _ce (getvar "cmdecho"))
(setq _hl (getvar "highlight"))
(setq _bm (getvar "blipmode"))
(setvar "cmdecho" 0) ; suppress command echo
(setvar "highlight" 0) ; suppress hightlighting
(setvar "blipmode" 0) ; suppress blips
(repeat (strlen t1) ; for each character
(command "_text" "_c" "_none" p1) ; TEXT command
(if h1 (command h1))
(command ((eval o1) (rtd a1) 90) (substr t1 n1 1))
(setq a1 ((eval o1) a1 a2) ; increment angle
n1 (1+ n1) ; increment counter
p1 (polar c1 a1 r1) ; increment text point
) ; end SETQ
) ; end REPEAT
(setvar "cmdecho" _ce) ; enable command echo
(setvar "highlight" _hl) ; enable hightlighting
(setvar "blipmode" _bm) ; enable blips
) ; end DEFUN
(defun c:atext()
(princ "\n *** Draws text on arcs ***") ; banner
(getarc) ; get the arc
(getset) ; get the settings and draw text
(prin1) ; quiet exit
)
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