Hi Knut,
I think it might be easier to work with the Bufferer and try to copy
the elevations back onto the feature. Do these features have constant
Z values (eg contours or perhaps buildings)? If so, the
ElevationExtractor and 3dForcer transformers would do the job very simply.

Otherwise, I think you'll have to drop the line features into points
(Chopper), extract the Z coord from each point in the original feature
(CoordinateFetcher), copy the Z value to the matching point on the
buffered feature (FeatureMerger) then join the buffered points back
into a line (PointConnector). 

And I'd do the process on one side at a time - ie buffer on the left
hand side and do the above. Then buffer on the right hand side and
repeat - the reason being I'm not sure how well the order of points
will match up with more than 2 features.

Hope this helps,

Mark

Mark Ireland, Senior Product Specialist
Safe Software Inc. Surrey, BC, CANADA
[EMAIL PROTECTED] http://www.safe.com
Solutions for Spatial Data Translation, Distribution and Access


--- In [email protected], "kjetlund" <[EMAIL PROTECTED]> wrote:
>
> Hi
> I'm working on a project where I want to create parallell lines within 
> a certain distance from existing lines, and keep the elevation (Linear 
> referenced objects that i want to move out from the center line). I've 
> tried using the Buffer transformer, which does a good job on creating 
> the parallell lines, but looses the elevations. I can of course drape 
> the new lines on a surface that I build from the old lines, but is 
> there a better way to do this?
> Thanks,
> Knut Jetlund
>




For insights into what's up at Safe Software and what's on the development 
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Safe Software has also made slides available that outline enhancements planned 
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www.safe.com/2006uc.

 
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