外部変形は データのやり取りをテキストファイルで行うので プログラム言語は 自由に選ぶことができます。図形は機能的かつシンプルなため、数多くのユーザーに受け入れられています。
clispで矩形を描く
:clispで矩形を描く
@echo off
if not exist %~dpn0.lisp (
for /f "delims=:" %%n in ('findstr /n "^#!" %0') do (
more +%%n %0 > %~dpn0.lisp
)
)
clisp %~dpn0.lisp
goto:eof
REM #jww
REM #1-%d 矩形の始点を指示してください
REM #2%d 対頂点を指示してください
REM #e
#!この次の行からプログラムを書いてください
(defun to_f (x) ;文字列 "x" を 数値 xd0 (倍精度 double-float) に変換
(if (equal x nil) (setq x "0"))
(if (listp x)
(mapcar #'to_f x)
(progn
(if (typep x 'double-float)
x
(progn
(if (stringp x) nil (setq x (write-to-string x)))
(if (search "e" x)
(progn
(setq s (search "e" x))
(read-from-string
(concatenate 'string (subseq x 0 s) "d" (subseq x (+ 1 s) (length x)))
)
) ;progn (search "e" x)
(if (search "d" x)
x
(read-from-string
(concatenate 'string x "d0")
)
)
)
) ;progn (typep x 'double-float)
)
) ;progn (listp x)
)
)
(defun to_s (x) ;数値 xd0 (倍精度 double-float) を 文字列 "x" に変換
(if (equal x nil) (setq x 0))
(if (listp x)
(mapcar #'to_s x)
(progn
(if (stringp x) nil (setq x (write-to-string x)))
(if (search "d0" x)
(subseq x 0 (search "d" x))
(if (search "d" x)
(progn
(setq s (search "d" x))
(concatenate 'string (subseq x 0 s) "e" (subseq x (+ 1 s) (length x)))
)
x
)
)
) ;progn (listp x)
)
)
(with-open-file (f "jwc_temp.txt" :direction :input)
(loop for line = (read-line f nil) while line do
(setq a (regexp:regexp-split "\\s\\+" line))
(if (regexp:match "^hk" line) (setq hk (cadr a)))
(if (regexp:match "^hp1" line) (setq p1 (cdr a)))
(if (regexp:match "^hp2" line) (setq p2 (cdr a)))
)
(close f)
)
(progn
(setq hk (to_f hk))
(setq x1 (to_f (car p1)))
(setq y1 (to_f (cadr p1)))
(setq x2 (to_f (car p2)))
(setq y2 (to_f (cadr p2)))
(setq co (cos (* hk (/ pi 180))))
(setq si (sin (* hk (/ pi 180))))
(setq ww (+ (* (- x2 x1) co) (* (- y2 y1) si)))
(setq hh (- (* (- y2 y1) co) (* (- x2 x1) si)))
(setq x3 (- x1 (* hh si)))
(setq y3 (+ y1 (* hh co)))
(setq x4 (+ x1 (* ww co)))
(setq y4 (+ y1 (* ww si)))
(setq box (to_s (list x1 y1 x3 y3 x2 y2 x4 y4 x1 y1)))
)
(with-open-file (f "jwc_temp.txt" :direction :output)
(write-line (format nil "~{ ~a ~,a~%~}" box) f)
(close f)
)
