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Hec Ras Question Civil 3D 2012


JerryG

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So I went through and created my Alignment from Existing grade.

Then applied my Sample Lines and created a group.

(at least it says its created)

Then I go to "Output" "Export to hec Ras" I select the Surface (existing Grade)

Select my "Reach Alignment" but when I go to select my "Sample Line Groups"

there are no gropus in the pull down menu. But yet I have a group created using the existing Grade.:?

Anyone else run into this? Am I missing something in the creation of the Sample line group?

 

Thanks!

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Jerry, I sympathize with you...sometimes I have had to create the sample line group 2 or 3 times (with unique names each time)...it's almost like the "ExporttoHECRAS" routine needs to be reminded, "oh, yeah! that's what you want to do!".

 

Try re-grouping.

Check to make sure the group is being assigned to the alignment, too (each time).

 

I hate to say it, but I recall having to in order (with no intermediate commands) go through the process of creating the reach alignment, sample line, group, & export.

 

I haven't exported to HECRAS in several months, though, so I could be off-base. But, it has been a finicky routine. (WAY BETTER than manually entering all the cross-sections!!! Been there, done that!!)

 

Good luck!

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Thanks fo rthe reply Bill.

I finally figured it out after much trial and error.

Turns out it was picking up another center of channel alignment that I had fogoten was there.

So even though I was picking "Center Alignment" there were actually two.

So user error on this one.

 

Thanks Again!

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