Surface Export with LandXML

[Anonymous]

I have a dwg drawn in C3D 2007 that contains a surface. I need to bring that surface into a new dwg that is being drawn in C3D 2009.

I exported the surface using LandXML and imported it into 2009. The surface comes in looking fine but in the tool space there are no breaklines, no point group associated, no edits, etc. The surface is editable (its taste like chicken) and works like a normal surface but its missing all the data.

My question is how does one export the entire surface info?

Thanks

[Matt.Anderson]

A couple of things -

One - a LandXML surface contains the elevations and triangles needed for the surface. You have your surface.

If you question is, how do I get your the data from one drawing into another - insert the drawing (2007) into your 2009 drawing and explode the drawing. Make your edits in the new drawing.

Matthew Anderson, PE

[Anonymous]

Ahh, inserting the dwg as a block and exploding, did bring over all the data.

Thanks!

On a side note, why does exporting LandXML data not contain all the supporting data in the surface file?

[Anonymous]

Because a surface is defined by points and faces/edges. Anything else is
just fluff. LandXML is designed to be the ASCII of the development
world, and just as you don't get the table definitions or page numbers
etc when you save a word doc into .txt, you won't get all the stuff
behind a surface, you just get the surface.

LandXML is primarily for trading between apps. While it has uses moving
C3D to C3D, it's not designed for that, so it won't reflect the full C3D
buildup of a surface.

HTH
--
James Wedding, P.E.
Engineered Efficiency, Inc.
The Site: www.eng-eff.com
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