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Surfaces

12 REPLIES 12
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Message 1 of 13
teflon
605 Views, 12 Replies

Surfaces

Is there a way to control in which order the contours or breaklines are used in building a surface? Default the breklines are used in this order: 1-2-3-5-4 as the image on the right. The only way to produce the surface on the left following the order 1-2-3-4-5 is to make two different surfaces 1-2-3-4 and 4-5.  

12 REPLIES 12
Message 2 of 13
Joe-Bouza
in reply to: teflon

I would recommend not making the surface on the left as a single surface. In variable you will have a common xy with different z value and Delaunay Triangulation algorithm with have a hiss fit.

http://en.wikipedia.org/wiki/Delaunay_triangulation

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 3 of 13
teflon
in reply to: teflon

Thank you for your answer!

I even tried to paste two surfaces together but they rebuild and turn to the one on the right!

But I think the order in which one picks the breaklines should matter and be there as an option!

Message 4 of 13
Joe-Bouza
in reply to: teflon

I never really answered your question: Surface properties>> definition tab you can reorder the breakline data
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 5 of 13
teflon
in reply to: teflon

I have five sets of breaklines.

Doing the way you suggested does not do it!

I moved them up and down rebuilding the surface without any effect!

Sorry!

Message 6 of 13
Joe-Bouza
in reply to: teflon

I showed you how to re-order the build.

Whats in your sets I don't know. But I'll say it again - I wouldn't try to build a surface with redundant xy data. civil3d surfaces are different than a solids model it will try to triangulate from the bottom and what happens is anyones guess
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 7 of 13

You can't make a TIN Surface in Civil 3D that looks like the image on the left no matter how you pick or order the breaklines. TIN Surfaces are not allowed to have vertical edges or overhangs.

 

You could make an AutoCAD Solid or Mesh that looks like that, but that surface can't be used with the civil engineering commands in Civil 3D.

 

Regards,

 

Peter Funk

Autodesk, Inc.



Peter Funk
Autodesk, Inc.

Message 8 of 13

Thank you for the reinforcement Peter.
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 9 of 13
doni49
in reply to: peterfunkautodesk


@peterfunkautodesk wrote:

You can't make a TIN Surface in Civil 3D that looks like the image on the left no matter how you pick or order the breaklines. TIN Surfaces are not allowed to have vertical edges or overhangs.

 

You could make an AutoCAD Solid or Mesh that looks like that, but that surface can't be used with the civil engineering commands in Civil 3D.

 

Regards,

 

Peter Funk

Autodesk, Inc.


Peter,

 

I've looked at his image twice and I don't think that's a vertical surface.  It looks like it is steep but not vertical.  If it IS vertical, maybe he can adjust point 5 a little so that it wouldn't be.



Don Ireland
Engineering Design Technician




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Message 10 of 13
Jeff_M
in reply to: doni49


doni49 wrote:

Peter,

 

I've looked at his image twice and I don't think that's a vertical surface.  It looks like it is steep but not vertical.  If it IS vertical, maybe he can adjust point 5 a little so that it wouldn't be.


It's not vertical. Peter just noted that C3D can't have vertical OR overlapping faces (overhangs). The OP's desired surface does have overlapping faces.

Jeff_M, also a frequent Swamper
EESignature
Message 11 of 13
Joe-Bouza
in reply to: doni49

nfg_surface.png

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 12 of 13
randcdavidson
in reply to: Joe-Bouza

NFG....Help me out here..I have NFC what that means? Smiley Wink

Message 13 of 13
Joe-Bouza
in reply to: randcdavidson

NO F&*^ING GOOD

{\:D
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS

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