AutoCAD Civil 3D General Discussion

AutoCAD Civil 3D General Discussion

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tonykhoury
Posts: 45
Registered: ‎03-24-2014
Message 1 of 3 (86 Views)
Accepted Solution

Alignment free curve issues

86 Views, 2 Replies
08-11-2014 09:39 AM

Hi,
Is there a way to connect two sperate lines with a tangent curve wihout moving the two ends of the lines where the curve is connecting ?
I cant find a way to do it.

 

Thanks in advance.

 

Tony, 

Hi Tony,

 

There isn't because there is no guarantee that the 2 lines are oriented in such a way that there is a curve solution that is tangent at both ends.

 

You could float a curve off the first line and specify a pass-through point at the start of the second, but the second point may not be tangent.

 

Better to use a Free curve that is "free" to slide at either end to ensure tangency.

 

Regards,

Mike

You can always do it old school. Offset both tangets the radial distance. Draw a circle from the intersection of the two offset tangents to the endpoint of one, either PC or pt doesn't matter. Trim cirle on both tangents. Now you have a tangent curve.
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odoshi
Posts: 238
Registered: ‎06-05-2006
Message 2 of 3 (81 Views)

Re: Alignment free curve issues

08-11-2014 10:02 AM in reply to: tonykhoury

Hi Tony,

 

There isn't because there is no guarantee that the 2 lines are oriented in such a way that there is a curve solution that is tangent at both ends.

 

You could float a curve off the first line and specify a pass-through point at the start of the second, but the second point may not be tangent.

 

Better to use a Free curve that is "free" to slide at either end to ensure tangency.

 

Regards,

Mike

Mike Caruso
Autodesk Certified Instructor
Softdesk/Autodesk Product Support/QA 9 yrs
Carlson Software Engineer 2 yrs
www.civil3d.guru
-------------------------------------------
Rockin' Civil 3D 2015 on a 13-inch MacBook Air | Intel i5 | 4GB RAM | 128GB SSD | Intel HD5000 | Slammed on Chrome 20's
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bobwesterman
Posts: 4
Registered: ‎12-16-2008
Message 3 of 3 (44 Views)

Re: Alignment free curve issues

08-11-2014 05:27 PM in reply to: tonykhoury
You can always do it old school. Offset both tangets the radial distance. Draw a circle from the intersection of the two offset tangents to the endpoint of one, either PC or pt doesn't matter. Trim cirle on both tangents. Now you have a tangent curve.
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