Thread: Reverse Polyine Direction
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Replies:
8
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Last Post:
Jan 5, 2009 6:39 PM
Last Post By: mdkearly
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Posts:
11
Registered:
10/08/07
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Reverse Polyine Direction
Posted:
Jan 5, 2009 5:01 PM
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I'm sure it's a simple procedure, but how does one reverse a polyline direction in Acad? I have a streamline linetype with arrows that invariably is the wrong direction when initially drawn. Without redrawing the line starting at the other end, isn't there some easy command/button that will do this? Thanks.
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 5:11 PM
in response to: mdkearly
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Grading >
edit feature line geometry>
reverse
works on polylines
"mdkearly" wrote in message news:6098374@discussion.autodesk.com...
I'm sure it's a simple procedure, but how does one reverse a polyline
direction in Acad? I have a streamline linetype with arrows that invariably
is the wrong direction when initially drawn. Without redrawing the line
starting at the other end, isn't there some easy command/button that will do
this? Thanks.
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Posts:
322
Registered:
09/04/08
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 5:16 PM
in response to: mdkearly
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In Acad? Are you in Civil 3D?
Grading
Edit Feature line Geometry
Reverse
It works on plain polylines without being feature lines.
If it's plain Acad there are a lot of lisp routines that will do it.
Bruce
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Posts:
11
Registered:
10/08/07
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 5:23 PM
in response to: klugb
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Using C3D. Thanks for the tip, but here's another question for you. The feature line editor works to reverse the polyline direction if it's straight. An arc however, I've had zero luck with changing. The software refuses to show the arrows going the right direction. I can even join the polyline, but the arrows thru the segment are always going backward.
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Posts:
109
Registered:
12/06/07
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 5:47 PM
in response to: mdkearly
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I don't know what happened to it but CADTOWN.COM is where I found a script to reverse polylines. Maybe it would fix the arc issue.
Edited by: dlmanning on Jan 5, 2009 12:48 PM
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Posts:
322
Registered:
09/04/08
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 5:56 PM
in response to: mdkearly
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What version of Civil 3D are you in?
C3D 2009 with all SP & hotfixes
I just created 3 polylines
1- All tangents
2- Tangents & curves
3- Curve only
All there reversed fine using the grading feature line option.
Bruce
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 6:28 PM
in response to: klugb
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If LTGEN is disabled for the pline then the arrows on an arc
will not show correctly...they will always go in a CCW direction. Enabling LTGEN
prevents this from happening.
What
version of Civil 3D are you in?
C3D 2009 with all SP &
hotfixes
I just created 3 polylines
1-
All tangents
2- Tangents & curves
3- Curve
only
All there reversed fine using the grading feature line
option.
Bruce
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Posts:
11
Registered:
10/08/07
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Re: Reverse Polyine Direction
Posted:
Jan 5, 2009 6:39 PM
in response to: klugb
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C3D 2009 SP1, for what that's worth - consistency in software behavior has never been there for us between our build and tech support or even between machines in this office.
Whatever the reason, I finally gave up, shut down completely, rebooted windows and c3d. Reopened the drawing and the arrows were pointing the right way. Thanks.
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