Grading from AutoCorridor Feature line

Grading from AutoCorridor Feature line

adw1975
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Message 1 of 8

Grading from AutoCorridor Feature line

adw1975
Enthusiast
Enthusiast

I have set up a corridor from a simple assembly and am grading from auto corridor featureline created from the corridors Marker point. Both sides of an embankment crest hinge created exactly the same way but one side seems to be creating a enormous amount of triangles, the other side seems fine. What am I doing wrong?

I might add that on outer large triangulation I am grading to a LiDAR surface and the simple triangulation is grading to a very simple 2 breakline surface.

 

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Message 2 of 8

Joe-Bouza
Mentor
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My guess is a combination of the corridor frequency and the grading tessellation value

Joe Bouza
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Message 3 of 8

ecfernandez
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Mentor

Hi guys, I think that feature line may have lots of vertices. Weeding it before creating the grading could be a good idea.

Regards!

Camilo Fernández

Civil engineer | Specialist in design, construction, and maintenance of roadways

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Message 4 of 8

adw1975
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Enthusiast

Hi Camilo,

yeah it has a crazy amount of vertices, but won't I lose the auto corridor feature if I weed it?. and the corridor is set to 20m increments, so that it not what is causing it.

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Message 5 of 8

adw1975
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Enthusiast

Thanks Joe, 

its definitely not the corridor frequency and that is set to 20m. I've ditched the corridor and gone to straight featureline modeling and its still doing the same thing. So will look at the tessellation, what is a suitable value for tessalation?

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Message 6 of 8

m_kingdon
Advisor
Advisor

I personal don't use corridor auto feature lines. From experience I found that they break often and won't update if your corridor moves. Incorporate your grading into your corridor or use an alignment instead. 

Mike Kingdon
Civil 3D Zealot

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Message 7 of 8

adw1975
Enthusiast
Enthusiast

Hi Mike, 

by "Incorporate your grading into your corridor" do you mean as part of your assembly?

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Message 8 of 8

m_kingdon
Advisor
Advisor
Yes, if possible. Alternatively, I've used offset alignments.

Corridor auto featurelines are one of those tools that are good in theory, but from my real world experience they are currently too unstable.

Mike Kingdon
Civil 3D Zealot

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