Topic: [XDrX-PlugIn(163)] Dynamically display the area ect.. information of rectange

[xdcad]

https://www.cadtutor.net/forum/topic/70763-display-the-area-by-picking-rectangle/

Code: [Select]

(defun c:xdtb_dynrecarea (/ #mcolor cen data dynpt height lastpnt mArea nums
    p-1 p2 p-2 pn1 pt1 pt2 pts str txt wid
)
  (defun _callback (dynpt)
    (if (not (and
       (equal pn1 dynpt 1e-3)
       (equal lastpnt dynpt 1e-3)
     )
)
      (progn
(setq lastpnt dynpt
      pt2 (xdrx-getpropertyvalue (list pn1 p-2) "getclosestpointto"
dynpt t
  )
)
(setq pt1 (xdrx-getpropertyvalue (list pn1 p-1) "getclosestpointto"
dynpt t
  )
      wid (distance pt2 dynpt)
      height (distance pt1 dynpt)
      pts (list pt2 dynpt pt1 pn1)
      cen (xdrx-line-midp dynpt pn1)
      mArea (* wid height)

      nums (length data)
      str (xdrx-string-formatex (xdrx-string-multilanguage "宽度= %.1f\r\n高度= %.1f\r\n面积=%.1f" "Width= %.1f\r\nHeight= %.1f\r\nArea=%.1f")
wid height mArea
  )
)
(xd::grdraw:drawtext txt str cen 5 (* (getvar "viewsize") 0.025) 2
     (getvar "ucsxdir") nil 8
)
      )
    )
    str
  )
  (xdrx-begin)
  (xdrx-sysvar-push '("osmode" 8))
  (if (setq pn1 (getpoint (xdrx-string-multilanguage "\n矩形起始点<退出>:" "\nRect Start Point<Exit>:")))
    (progn
      (setq #mcolor 1)
      (setq p-1 (mapcar
  '+
  pn1
  '(1 0 0)
)
    p-2 (mapcar
  '-
  pn1
  '(0 1 0)
)
    txt (xdrx-mtext-make)
      )
      (XD::Drag:CallBackSetMouseMove "_callback")
      (if (setq p2 (xd::doc:getcorner pn1
      (xdrx-string-multilanguage "\n对角点<退出>:" "\ndiagonal point<Exit>:")
      #mcolor '(1 0 0)
   )
  )
(progn
  (xdrx-polyline-make pts t)
  (xdrx-setpropertyvalue (entlast) "color" #mcolor)
  (xdrx-prompt (strcat "\n" str))
)
      )
      (xdrx-pointmonitor)
    )
  )
  (xdrx-end)
  (princ)
)