Random elevations

Hi guys,

i am a fairly new member in the forum and so far i found some helpful tips already.

I do have a problem that u may be able to help me with.

I am using AutoCad 2007 and usually draw in 2D. In most drawings i have the survey X-refed to the design drawing im working in.

Here is my problem:

When i try to join polylines i constantly get "2 entities are non coplanar" message. I used the flatten-comand successfully, but after a while the polylines got different elevations again. Also the elevations of the polylines seems to be random (e.g.: -7, -328,...)

Plz help me to figure this out. I know i can set the elevation to "0" in properties its just frustrating and it takes alot of extra time to do this to every polyline i wanna join.

When i try to join polylines i constantly get "2 entities are non coplanar" message. I used the flatten-comand successfully, but after a while the polylines got different elevations again. Also the elevations of the polylines seems to be random (e.g.: -7, -328,...)

The FLATTEN command works, but it doesn't always flatten everything.

Try this lisp routine instead, it works better than the Flatten command:

 
(defun c:flat (/ total-nabor) 
 (vl-load-com) 
 (if 
   (setq total-nabor (ssget "x" '((410 . "model")))) 
    (progn 
      (setq total-nabor 
       (mapcar 'vlax-ename->vla-object 
         (mapcar 'cadr 
           (ssnamex total-nabor))) 
      ) 
      (foreach  i '(1e99 -1e99) 
  (mapcar (function (lambda (x) 
          (vla-move x 
              (vlax-3d-point (list 0 0 0)) 
              (vlax-3d-point (list 0 0 i))) 
        )) total-nabor ))) 
 ) 
 (princ) 
) 

In case you don't know how to load a lisp routine: http://www.cadtutor.net/forum/showthread.php?t=2791

Hi,

I suspect that you are using the XREF as reference when drawing and using OSNAPs to do it. I only have 2008 but I suspect that this is applicable to 2007 as well: "In Options" --> "Drafting" --> "Object Snap Options" Activate the option "Replace Z-value with current elevation" and you should be OK!

HTH

/Petri

Thx Petri,

that works perfectly.

I will also look into that lisp Cad64 mentioned. Just need the time lol.

Thx for the fast reply

No problem!

Welcome to the forum! Hope you'll find it as beneficial as I have!

/Petri

OK i looked into lisp routine (Thx for the link how to do this-very helpful). I loaded the lisp like discriped and used the command. everything works perfect - saved the drawing.

Than i closed out AutoCad 2007 and reopend and i had to reload the lisp again.

Is that how it works or do i do something wrong, that i have to reload the lisp every time? (If i dont reload it says "command not found")

On the previous versions of Acad you had to load the lsp into the "Startup Suite" that was right there in the APPLOAD dialogue box.

OK Hi, Etc,

in AutoCAD, command: APPLOAD: Press the Startup Suite Contents -button, Add button --> Find the wanted file (lsp, etc) etc... Should get you going...

/Petri

Thx a bunch APPLOAD worked perfect. Sorry im such a newbie >

I've had a similar problem and i ran your lisp routine, but it set the Z axis to 1.99.

Is there a way that I can change it to set the Z axis to 0?

This is the first time I've ever used Lisp routines.

Thanks Petri..it works perfectly...was looking for this solution from a looong time...thanks bro...

hi guys...

i m new at lisp......and i need solution for the above subject on how to use the code given above...

i am not able to open the link provided..

please, can anyone help....

thanks...........

Thanks Steve.........it worked...

You are welcome!

Thanks for the heads up on the broken link.

CAD64 thanks you've saved me!!

I was getting errors in a drawing, although every objects elevation was 0.00, I wasn´t abble to trim or extend lines and polylines. Running "FLAT" solved the problem!

I am using Autocad 2006. I imported a surevy document to us in developing a site plan. I am experencing problems with my fillet command. I went to express tools to the flatten comand but that did not help. I then went to options,Drafting, object SnapOptions and activated "repalace Z value with current elevation. That did not help. Is there a solution to my problem?