Hi Mark,
I think (if I am visualizing this correctly) that you're coming up
against a weakness of FME, that we can't yet snap to a line unless a
vertex exists to snap to. 

It's tough to find an alternative solution w/o having data to try it
on. The one transformer I found that works on a tolerance for
points/lines is the PointOnLineOverlayer. You could try dropping one
of the lines to points using a Chopper then run everything through a
PointOnLineOverlayer. This will give you extra vertices at the
required points, and you can now run this and an unchopped copy of the
second line through the Snapper. 

Hope this helps. I'll pass your question around the Pro Services team
here to see if anyone else has some better suggestions.

Regards,

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], "cumpston_mark" <[EMAIL PROTECTED]> wrote:
>
> The nodes/verticies aren't close relative to
> the distance between the lines.  The lines are
> actually less than one ground unit apart and the
> verticies/nodes are around 1000 units apart.
> 
> Thanks for the help,
> Take care,
> 
> Mark C.
> 
> --- In [email protected], Hans van der Maarel <hans@> wrote:
> >
> > cumpston_mark wrote:
> > > 
> > > 
> > > I am trying to clean up a DGN dataset in order
> > > to build polygon features out of lines.
> > > 
> > > I have a case where two lines overlap for a section
> > > near their ends and run parallel to each other. I
> > > would like to figure out how to snap these lines
> > > together to form one continuous line.
> > > 
> > > Lets say they are 1 unit distance apart...their
> > > verticies/nodes are say 1000 units apart so the
> > > Snapping Factory doesn't do anything to them
> > > (for any reasonable size snapping distance).
> > > 
> > > They don't intersect so the Intersector ignores
> > > them.
> > > 
> > > I could densify them to 1 unit and then try to
> > > snap them, but this seems kind of ugly and slow.
> > > 
> > > Is there a more elegant solution that I'm missing?
> > 
> > Probabely not.
> > 
> > Aren't the vertices somewhere near eachother? If they are, a 
> Snapper or 
> > AnchoredSnapper may do the trick.
> > 
> > If they're not, the only reliable option is to densify and then 
> snap them.
> > -- 
> > Hans van der Maarel
> > Red Geographics
> > 
> > Zevenbergsepoort 44b            www.redgeographics.com
> > 4791 AE  Klundert               hans@
> > The Netherlands                 phone: +31-168-401035
> >
>




For insights into what's up at Safe Software and what's on the development 
horizon, visit Safe's blog at spatial-etl.blogspot.com.

Safe Software has also made slides available that outline enhancements planned 
for FME 2007. The slides are from the "Road Ahead" presentation given on Day 2 
of the FME Worldwide Users Conference. To view these slides, visit 
www.safe.com/2006uc.

 
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