Topic: 3d Polylines to TIN Surface?

[DPATTERSON]

Hi everyone,

So here is my problem of the week.  I work with a program called 3D-office and AutoCAD Civil 3d.  Usually I import data (3D poly lines, points, ...etc)  from autocad into 3D-Office and build surfaces (because it is much easier to build complex surface in 3D-Office).  Now for the first time I am trying to bring a Surface from 3D-Office to AutoCAD however the format is strange.  Its as if the TIN surface has been turned into 3 dimensional linework of the surface (like exploding a surface into lines.).   I was wondering if there is a away to turn these lines into a surface again in AutoCAD.  PM me if you want to see the file!

Thank you in advance.


-David

[mjfarrell]

what are you exporting out of Topcon 3d office?

are you exporting the surface ONLY as a TIN? or DTM?

or can you and are you also exporting breaklines ?

prehaps you could export as a FBK or as a Points file (figures)

mfarrell  at  enviroag   dot com  to review your file

[mjfarrell]

seems to lack Land XML export support from quick look at help file PDF - this would pretty much render the software as useless for data exchange between Topcon to other 3d software

although I question that it is easier to build 'complex' surfaces with it.

There has been no surface I can not model in Civil 3d

[mjfarrell]

two options...

create surface add these 3d lines in as break lines

convert them into feature lines and add them to a surface...


This looks like a task best done as corridor model in civil 3d.

and then you have more control and a better model of the roads

[DPATTERSON]

I sent you the wrong file, I resent the correct file!  Is there a difference?

-David

[mjfarrell]

I sent you the wrong file, I resent the correct file!  Is there a difference?

-David

YES

And it confirms that Topcon office NOT supporting XML makes it a less than effective tool.

[DPATTERSON]

Thanks mjfarrell, you saved me once again!