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Crossing Tin Lines

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Message 1 of 5
SSicina
Observer
558 Views, 4 Replies
‎12-03-2013 12:55 PM
‎12-03-2013 12:55 PM

Crossing Tin Lines

I have built a alingment, corridor, and surface of a driveway but I have a few holes in my surface.  I tried to add lines to my TIN surface and some filled in properly but others would not and I had TIN lines that crossed (actually they are 4 different lines that meet at on point).  Why does this happen and how can I fix it?

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Message 2 of 5
Alfred.NESWADBA
Consultant
in reply to: SSicina
‎12-03-2013 01:49 PM
‎12-03-2013 01:49 PM

Hi,

 

welcome @forums.autodesk.com !

 

What version of Civil3D do you have and do you have installed the latest servicepack?

What happens if you export the surface to LandXML and reimport it into a new drawing?

 

- alfred -

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Alfred NESWADBA
Ingenieur Studio HOLLAUS ... www.hollaus.at ... blog.hollaus.at ... CDay 2024
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(not an Autodesk consultant)
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Message 3 of 5
neilyj666
Mentor
in reply to: SSicina
‎12-03-2013 02:08 PM
‎12-03-2013 02:08 PM

TIN lines cannot cross each other - fundamental principle of triangulation.

try drawing a polyline around the gap areas and add to surface as a show boundary

neilyj (No connection with Autodesk other than using the products in the real world)
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Message 4 of 5
mathewkol
Advisor
in reply to: SSicina
‎12-03-2013 03:39 PM
‎12-03-2013 03:39 PM

Tough to say why this happens without your drawing we have no idea how the surface was created. Those "crossing" TIN lines usually happen when you add lines in an area where there are break lines defined.
Matt Kolberg
SolidCAD Professional Services
http://www.solidcad.ca /
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Message 5 of 5
SSicina
Observer
in reply to: SSicina
‎12-04-2013 06:54 AM
‎12-04-2013 06:54 AM

We figured out the issue I had not set a corridor border and I had deleted a line that was used within the surface when I was cleaning up the extra daylighting lines.  I ressolved the issue by using a corridor border. Thanks for the help though

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