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Multiple profiles in a view

6 REPLIES 6
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Message 1 of 7
caponio
364 Views, 6 Replies

Multiple profiles in a view

How can I draw in the same view, different profiles related to different alignment?
6 REPLIES 6
Message 2 of 7
Anonymous
in reply to: caponio

Profiles-Superimpose Profiles.

HTH

--
James Wedding, P.E.
Technology Manager &
Associate
Jones & Boyd, Inc.
Dallas, TX
XP/2 on P4-3.4/1G
LDT 2006 & C3D2006/SP1
Message 3 of 7
caponio
in reply to: caponio

Ok, I did it, but something change happens. The start/end stations of the superimposed profiles are different from the main profile ones. How can I do to fit them together?
Thanks
Message 4 of 7
Anonymous
in reply to: caponio

Of course they're different. You're superimposing based on alignments that
don't line up. The only way this would EVER work is two parallel,
single-segment, linear alignments.

If you want to have the 100 from one alignment's profile data match the 100
station on another alignment's profile view, you'll have to draw them
manually. And that really would be incorrect.

--
James Wedding, P.E.
Technology Manager &
Associate
Jones & Boyd, Inc.
Dallas, TX
XP/2 on P4-3.4/1G
LDT 2006 & C3D2006/SP1
Message 5 of 7
caponio
in reply to: caponio

Why do you say the alignments dont' line up?
I draw two alignments of the same lenght, and i draw two profiles, one for each alignment; then i create superimposed profiles. I would expect start/end stations of the two superimposed profiles fit together...
Thanks
Message 6 of 7
Anonymous
in reply to: caponio

Can you post a screen grab, maybe I can help more?

--
James Wedding, P.E.
Technology Manager &
Associate
Jones & Boyd, Inc.
Dallas, TX
XP/2 on P4-3.4/1G
LDT 2006 & C3D2006/SP1
Message 7 of 7
Anonymous
in reply to: caponio

To elaborate some.

Because superimposing works by drawing a line perpendicular from the parent
alignment to the superimposed alignment, then pulling an elevation from the
superimposed profile at the superimposed alignments' station of intersection
with that line, the only time profile will line up is when they are parallel
_over their entire length_. If they are parallel at the start, they will
superimpose as desired, but as soon as you reach a PT, they will shift on
you.

Check out the attached png. These are two parallel alignments, with similar
curve properties. Notice how the stationing has shifted? If you were to
superimpose the profile from the north alignment, you'd get it's elevation
for 33+00 shown at approx 35+00 on the southern alignments profile.

Does that make sense?

--
James Wedding, P.E.
Technology Manager &
Associate
Jones & Boyd, Inc.
Dallas, TX
XP/2 on P4-3.4/1G
LDT 2006 & C3D2006/SP1

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