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Topic ClosedMULTIPLE LINE LENGTHS SUMMATION
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Ikenna View Drop Down
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Points: 6 		Direct Link To This Post Topic: MULTIPLE LINE LENGTHS SUMMATION
    Posted: 13.May.2016 at 15:36
Halo Forum Members, good afternoon.
 
Please I need to know if there is a single command I can use to get the total summation of the lengths of different, separate lines. For example, if I have five separate lines measuring 5,10, 10, 5 and 3 meters each. My question now is: Is there a way I can select the five lines at once and issue a command and the AutoCAD application will simply give me the total lengths as 33 metres!
Thanks.
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 13.May.2016 at 15:44
There are lisp routines that will give you the total length of a series of lines.  One of them is called TLEN.lsp and it is from Tee Square Graphics.  You can also look for Lee Mac's Total Length program; it's on his website.


Edited by John Connor - 13.May.2016 at 15:52
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Kent Cooper View Drop Down
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Points: 686 		Direct Link To This Post Posted: 23.May.2016 at 22:20
Here's another one.  Some Searching will probably find several others.
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Ikenna View Drop Down
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Points: 6 		Direct Link To This Post Posted: 27.May.2016 at 11:39
Thanks so much John. Let me check it out.
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Ikenna View Drop Down
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Points: 6 		Direct Link To This Post Posted: 27.May.2016 at 11:58
Thanks very much Kent. I just tried this method and it worked! But the issue is that it gives the summations in feet and inches. Secondly, it doesn't select arcs for summation.
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 27.May.2016 at 12:14
You should have tried Lee Mac's program.

http://www.lee-mac.com/totallengthandarea.html
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Ikenna View Drop Down
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Points: 6 		Direct Link To This Post Posted: 27.May.2016 at 14:35
John, thanks very much. I tried it and it worked perfectly. Everything was calculated - lines and arcs!, and the summation was given in metres!! Thanks again.Smile
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Ikenna View Drop Down
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Points: 6 		Direct Link To This Post Posted: 27.May.2016 at 14:53
Sorry, I meant 'summation was given in metric units'. Yes, I got it in millimetres.
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 27.May.2016 at 15:09
You're welcomed.  Glad to hear you found something that suits your needs.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Kent Cooper View Drop Down
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Points: 686 		Direct Link To This Post Posted: 27.May.2016 at 16:51
Originally posted by Ikenna Ikenna wrote:

... the issue is that it gives the summations in feet and inches. Secondly, it doesn't select arcs for summation.
It's odd that the description at the linked page mentions Arcs, but in fact the routine isn't written to accept them.  You can change that to include them, and far more entity types, by changing this line:
  (setq sset (ssget '((0 . "LINE,LWPOLYLINE")))
to this:
 
  (setq sset (ssget '((0 . "LINE,*POLYLINE,ARC,CIRCLE,ELLIPSE,SPLINE")))
 
BUT since not all of those entity types have the same "length" VLA property [some have one but under a different name], you would also have to change this line:
 
   (vla-get-length (vlax-ename->vla-object (ssname sset num)))
 
to this:
 
   (vlax-curve-getDistAtParam (setq ent (ssname sset num)) (vlax-curve-getEndParam ent))
 
which will find the length of any (vlax-curve-...)-compatible entity, open or closed.
 
And you can have it report in whatever Units you like.  Change this:
 
     llen (rtos llen 4)
which reports in Architectural units [the 4] to just:
 
     llen (rtos llen)
 
if you want it to report in whatever your current Units and Precision settings are, or use other values for units and precision in the (rtos) function, to suit your requirements.
[Also, I would change the (alert) to use a word like "object" instead of "line."]


Edited by Kent Cooper - 27.May.2016 at 16:52
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