Modified lsp-demo files

[HPW]

Hello,

A few improvments to the demo lsp files

gear.lsp

Code: [Select]

(defun c:gear(/ R cp np t h a0 aoff tmpecho)
 (setq tmpecho (getvar "cmdecho"))
 (setvar "cmdecho" 0)
 (setq cp (getpoint "Specify gear center: ")
       R (getdist "Specify radius: ")
       t (getint "Enter number of teeths: ")
       h (getdist "Specify teeth height: ")
 )
 (command "circle" cp R)
 (setq R (+ R h ))
 (command "circle" cp R)
 (setq R (+ R (* 2 h)))
 (print R)
 (setq aoff (/ (* pi 2) t)
       a0 0
       np (polar cp a0 R)
 )
 (print np)
 (repeat t
  (command "pline" cp np "")
  (setq a0 (+ a0 aoff)
        np (polar cp a0 R)
  )
  (print "")
 )
 (setvar "cmdecho" tmpecho)
 (princ)
)
(princ "Gear.lsp by Mirza Coralic. Type GEAR to start.")
cmdecho seems not to be supported really.

DrawExtent.lsp

Code: [Select]

(defun c:drawextent(/ en ext)
 (setq en (car (entsel))
       ext (bc-entext en)
 )
 (command "rectangle" (list (car ext) (cadr ext)) (list (nth 2 ext)(nth 3 ext)))
 (print "Entity extent: ")
 (princ ext)
 (princ)
)
(princ "DrawExtent.lsp by Mirza Coralic. Type DRAWEXTENT to start.")

chcolor.lsp

Code: [Select]

(defun c:chcolor (/ colr ss en ind)
 (setq colr (getint "Enter color index number (0-255): ")
       ss (ssget)
       ind 0
 )
 (while (setq en (entget (ssname ss ind)))
  (setq en (append en (list (cons 62 colr))))
  (entmod en)
  (setq ind (+ ind 1))
 )
 (princ)
)
(princ "chcolor.lsp by Mirza Coralic. Type chcolor to start.")

Joining multiple setq to one should increase performance.