How to export 3D contours and 3D TIN to dxf?

[unearthed]

I have a very simple site model - made from 3D loci. I'm trying to export the resulting contours from the site model as 3D. But result is always 2D - hopefully there is a method.

 

I have tried just exporting the site model

 

and have tried via Edit Existing Site Model COntours and selected and exported - but same 2D result.

 

Using VW2018 on Windows.

 

 

[Jeff Prince]

I’m assuming this will work in 2018…
 

1. Change the 3D display of your model to “3D contours”.
2. set your view to a 3D view, not top/plan.

3. Make a copy of your model so you don’t lose your original site model.

4. ungroup the copy.

 

This will give you 3D polys that can be exported nicely.  This method is also helpful for reindexing contours… like when you are provided 2’ contours, but want 1’.

[unearthed]

Thanks Jeff, that did the trick and nice contours come out the other end

- but it's cumbersome - is it more streamlined in later versions? 

 

[Jeff Prince]

2 hours ago, unearthed said:

but it's cumbersome - is it more streamlined in later versions? 

Not that I’m aware of.

[unearthed]

Just coming back to this as a note to my future self. In some earlier versions of VW (2018 at moment) setting the flyover tool reliably works before exporting, whereas View>Set 3D view is unreliable.