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Merging two surfaces

7 REPLIES 7
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Message 1 of 8
yoganand.m
30294 Views, 7 Replies

Merging two surfaces

Hai,

 

I have two surfaces with useful information in both of them as in the figure. I need to merge two surfaces into a single surface retaining the points in both of them. 

 

I have tried the solution mentioned in this thread: http://forums.autodesk.com/t5/AutoCAD-Civil-3D/merge-surfaces/td-p/1943072 but the points of inner surface are lost when I did the merger.

 

Can anyone please help me to add the points of inner surface to the bigger surface. 

 

Thank you

Windows 7 x 64
Nvidia Quadro 2000
24 GB Ram
i7 960 @ 3.20 GHz
Civil 3D 2012
7 REPLIES 7
Message 2 of 8
Joe-Bouza
in reply to: yoganand.m

Sounds to me like you have to merge the data to build a new surface

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 8
JessicaPalmer
in reply to: yoganand.m

Make sure that your inner surface is pasted, into the new surface, last. The past order matters, the last surface wins.

 

Thanks,

Jessica Palmer
Message 4 of 8
neilyj666
in reply to: yoganand.m

1. Create a new surface (COMBINED) and paste the large surface into it

2. Extract the boundary of the inner surface and add to the COMBINED surface as a non destructive breakline

3. Paste the inner surface to COMBINED

 

This assumes that the common boundary between the two surfaces are at exactly the same level which is unlikely and if this isn't acceptable then simply omit step 2 and the resultant TIN will replace everything in the outer surface TIN that is covered by the inner surface TIN (again this may not be desirable).

 

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2024 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760
Message 5 of 8
yoganand.m
in reply to: yoganand.m

Thank you everyone ! It worked. 🙂

Windows 7 x 64
Nvidia Quadro 2000
24 GB Ram
i7 960 @ 3.20 GHz
Civil 3D 2012
Message 6 of 8
mheffelfinger5
in reply to: yoganand.m

if your just adding new points to better build the surface rather than adding a surface to another surface to overwrite data in a particular area all you have to do is go to your original surface in toolspace that you are adding to. under the point group add the new points to the tab, this will automatically update the original surface you have built with your new points, you will most likely have to flip some edges to achieve the desired contouring 

Message 7 of 8
mpittsFBB2S
in reply to: yoganand.m

It would be a kindness to other users if you accepted which solution was the one you implemented that worked for you.

 

Just a thought.

 

Marty.

Message 8 of 8
neilyj666
in reply to: yoganand.m

This was marked as solved over 5 years ago...not much point resurrecting it...!!!

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2024 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760

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