Distance from given reference

[awnil]

Hello guys!

I am trying to get the distance from one point to another, then add it to the given reference as part of a text in the drawing. (The text format is "Ref. 364.80", for example).

I have searched over the other topics and this is what I found:

and

 

 

Also, my drawings are all scaled 1:100, so the distance must be divided by 10 before adding the reference cote.

 

Here is the screenshot:

 

Thank you!

[hosneyalaa]

Can you attached example drawing 

[BIGAL]

This is what you want it is metric.

 

;Calculates level of a point in cross or long sections
; BY alanh 2014


(setvar "cmdecho" 0)

(princ "\n To run just type SRL")

;;-------------------=={ Parse Numbers }==--------------------;;`
;;                                                            ;;
;;  Parses a list of numerical values from a supplied string. ;;
;;------------------------------------------------------------;;
;;  Author: Lee Mac, Copyright © 2011 - www.lee-mac.com       ;;
;;------------------------------------------------------------;;
;;  Arguments:                                                ;;
;;  s - String to process                                     ;;
;;------------------------------------------------------------;;
;;  Returns:  List of numerical values found in string.       ;;
;;------------------------------------------------------------;;

(defun LM:ParseNumbers ( s )
  (
    (lambda ( l )
      (read
        (strcat "("
          (vl-list->string
            (mapcar
              (function
                (lambda ( a b c )
                  (if
                    (or
                      (< 47 b 58)
                      (and (= 45 b) (< 47 c 58) (not (< 47 a 58)))
                      (and (= 46 b) (< 47 a 58) (< 47 c 58))
                    )
                    b 32
                  )
                )
              )
              (cons nil l) l (append (cdr l) (list nil))
            )
          )
          ")"
        )
      )
    )
    (vl-string->list s)
  )
)


(defun c:SRL ()
(setq olddimzin (getvar "dimzin"))
(setvar "dimzin" 0)
(if (= dwgscale nil)
(setq dwgscale (/ 1000.0 (getreal "\n enter vertical scale ")))
)
;(setq datum (getreal "\n Enter datum level "))
(setq datum (car (LM:ParseNumbers (cdr (assoc 1 (entget (car (entsel "\nPick datum text"))))))))



(setq test 1)
(setq pt1 (cadr (getpoint "\npick datum")))
(while (= test 1)

(setq pt2 (cadr (getpoint "\npick point")))

(setq dist (/(abs (- pt1 pt2)) dwgscale))

      (setq en1 (car (entsel "\nSelect text number:" )))
      (if (/= en1 nil)
        (progn
        (setq tent (entget en1))
        (setq a (+ dist datum))
        (setq a (rtos a 2 3))
        (setq el (subst (cons 1 a) (assoc 1 tent) tent))
        (entmod el)
	  );progn
       (princ "\nplease pick again"); else
     );if
); while t

(setq el nil
 en nil
a nil
en1 nil
test nil)

(setvar "cmdecho" 1)
(setvar "dimzin" olddimzin)
(princ)
)	;ends main defun
  

 

[awnil]

Thank you!

And thank you for the scale selection. I have tested  and it works very fine. Have a look.

 

It worked perfectly with a 100 scale.

Big hugs.

legatura -transversale pt lsp.dwg

[awnil]

Suchlike, I would like to find a point from the reference up, with the distance I need. I attach the drawing.

legatura -transversale pt lsp.dwg

[BIGAL]

Look at the code and make a new function, you know the datum XY and RL 133.0 you know the scale so the distance is add to datum the difference * scale etc, if you enter a chainage can work out a X offset point from say 0.0 line. You have the Y value so draw circle etc. 

 

Have a think about the select sequence,

datum point

datum rl text

0.0 line maybe use as datum point

Need Hor and Ver scales.

 

Have a go a good learning exercise the Surface rl.lsp has all the code you need. Make a copy of it and start there.