How to explode a spline or convert to polyline 1

• Jun 7, 2004

1
• #2

borgunit

Mechanical

Jul 26, 2002

1,153

US

I have a vlx file that converts spline to plines. Just let me know your email and its on its way.

"Whether you think that you can, or that you can't, you are usually right "
.. Henry Ford

 

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• Jun 7, 2004

• #3

Exxit

Computer

Aug 18, 2003

804

DE

Hi,

"flatten", by Express Tools 1-9

Lothar

ADT 2004
ACAD 2002

 

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• Jun 7, 2004

• Thread starter
• #4

meltman

Industrial

Apr 10, 2003

7

US

Thanks to all. Express tools did the job!

 

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• Jul 12, 2004

• Thread starter
• #5

meltman

Industrial

Apr 10, 2003

7

US

I just noticed an odd occurance in the flatten command and I want to know if there is a solution. I am creating a spline in the shape of a toroid by copying "_spline" followed by multiple data points and tangent points from an excel worksheet. The spline is perfect in autocad... but when I flatten the spline using Express tools the resultant polyline is altered. For example if the spline (and spreadsheet for that matter) show a space between turns in the toroid of .2" for several turns, the polyline might have a space of 0.15" between turns 3&4 then .25" between turns 4&5. The average is correct but the individual turns are not exactly correct. Has anyone ever seen this before and is there a solution or am I just making a not so bright mistake? If it would be helpful I can send file for analyses. Thanks

 

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• Jul 12, 2004

• #6

CarlB

Civil/Environmental

Jul 11, 2001

1,194

US

A free vlx file to convert splines to polylines (maybe the same one as Borgunit's?) is available at

http://www.dotsoft.com/freestuff.htm

"spl2pl.vlx"

 

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• Jul 12, 2004

• #7

pardal

Automotive

Oct 17, 2001

444

AR

Hi Borgunit , please send me such file.

devitg@ciudad.com.ar



Pardal

 

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• Jul 16, 2004

• #8

twlincoln

Electrical

Jan 24, 2003

65

US

You can also isloate the spline(s) and SAVEASR12 DXF...

 

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• Jul 20, 2004

• #9

borgunit

Mechanical

Jul 26, 2002

1,153

US

I think the link above to DOTSOFT was the file I am referring to. I found this in my archives that does a decent job...

(defun C:SPLINE2PLINE (/ SPLINES PLINETYPE OSMODE I SPL ED CODEPAIR)
(if
(setq SPLINES (ssget (list (cons 0 "spline"))))
(progn
(if
(zerop (setq PLINETYPE (getvar "plinetype")))
(setvar "plinetype" 1)
) ;if
(setq OSMODE (getvar "osmode"))
(setvar "osmode" 0)
(setq I 0)
(while
(setq SPL (ssname SPLINES I))
(setq I (1+ I)
ED (entget SPL)
) ;setq
(command ".pline")
(foreach
CODEPAIR
ED
(if
(= 10 (car CODEPAIR))
(command (cdr CODEPAIR))
) ;if
) ;foreach
(command "")
(command ".pedit" "l" "s" "")
) ;while
(if PLINETYPE
(setvar "plinetype" PLINETYPE)
)
(setvar "osmode" OSMODE)
) ;progn
) ;if
(princ)
) ;defun

"Everybody is ignorant, only on different subjects." — Will Rogers

 

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