Question

编写一个AutoLISP程序,画出一个边长为A的正方形,以及该正方形的内切圆,正方形的底边与正X轴的夹角为ANG

Answer 1

(defun c:zfx(/ A ANG p1 p2 p3 p4 p5 os cmd)

(SETQ CMD (GETVAR "cmdecho"))

(SETVAR "cmdecho" 0)

(setq os (getvar "osmode"))

(setq A (getreal"n:输入边长"))

(setq ANG (getreal"n:输入角度"))

(setq p1 (getpoint"n:指定起点"))

(setvar "osmode" 0)

(setq p2 (polar p1 (* pi (/ ANG 180)) A))

(setq p3 (polar p2 (* pi (+ 0.5 (/ ANG 180))) A))

(setq p4 (polar p1 (* pi (+ 0.5 (/ ANG 180))) A))

(command "pline" p1 p2 p3 p4 "c")

(SETQ p5 (polar p1 (+ (* pi (/ ANG 180)) (* 0.25 pi)) (* A (sin (/ pi 4)))))

(command "circle" p5 (* 0.5 A))

(setvar "osmode" os)

(SETVAR "cmdecho" CMD)

(PRINC)

)