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Test line relations depending on layer


lastknownuser

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lastknownuser

Need help with line relations. I attached a photo of example of final result I need.
White lines are in layer1 and red in layer2. I need lisp to add text to each point between lines depending on the layer. Lines on layer1 get symbol M, on layer2 Z. That I managed to do, but I can't figure out how to add symbol M-Z on point where lines from layer1 and layer2 are connected.

I tried with 3 ssget functions: points, lines from layer1 and lines from layer3. And then nested while that compares points and stard/end of lines, if the same then add symbol M or Z.
Any idea about how to test the condition to get M-Z on point where white and red lines are connected?

 

testt3.png

Edited by lastknownuser
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On 10/14/2021 at 9:31 AM, lastknownuser said:

I tried with 3 ssget functions: points, lines from layer1 and lines from layer3. And then nested while that compares points and stard/end of lines, if the same then add symbol M or Z.
Any idea about how to test the condition to get M-Z on point where white and red lines are connected?

 

Your on the right path with this. except I would do it a bit different. just create all the M and Z text like normal but add them to SS3 as you go

(ssadd SS3 (entlast))

 

Then once all the text are created compare them to each other if the have the same point set that to a variable then delete both text and use that point to create M-Z text.

(defun C:Foo (/ SS3 tlst pt)
  (setq SS3 (ssget '((0 . "TEXT") '(410 . "Model")))) ;this is for my testing.
  (setq tlst (vl-remove-if 'listp (mapcar 'cadr (ssnamex SS3))))
  (setq tlst (vl-sort tlst '(lambda (a b) (if (equal (assoc 10 (entget a)) (assoc 10 (entget b)) 1e-6)
                                      (progn
                                        (setq pt (assoc 10 (entget a)))
                                        (entdel a)
                                        (entdel b)
                                        (vl-cmdf "_.Text" pt "" "" "M-Z")
                                      )
                                    )
                            )
             )
  )
  (princ)
)

 

looks like your creating text with bottom left so thats 10 but if its something else you need to use 11.

 

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