Use the Generic MultiLink, specify 3 links, enter your parameters for
offsets and delta z's.... dW1=5, dW2=6, dW3=20, dZ1=0, dZ2=2, dZ3=2. Then
add a generic link slope to surface with a 3:1 slope. Mirror these to the
other side. Make sure you have a surface to target the outer links to.
If you get stuck let me know, I have a sample 2010 dwg ready to post if you
need it.
"youngEIT" wrote in message news:6385039@discussion.autodesk.com...
> i would like to apologize before hand for any dumb questions i ask; i am
> trying to get a handle on using the corridor modeling for channels. i have
> a half channel section that looks like this (right side of the
> centerline):
> from CL, 5' flat (towards the right)
> then 3:1 for a depth of 2'
> then a 20' "bench" rising at 10:1
> then, beyond the "bench", it should daylight to existing surface at 3:1
> i started with the OOTB channel subassembly, but realized that i cannot
> target a surface with this. i also had trouble putting in my "bench" area
> in the channel subassembly. i can create a subassembly from polyline, then
> add a LINK SLOPE TO SURFACE subassembly at the end, but then i cannot
> mirror the combo for the left side; finally, when i build the corridor
> with the entire x-section, alignment, profile etc, Civil 3D says its
> built, but i do not see a thing in the VIEW CORRIDOR SECTION, or even in
> plan view. i also do not get a target option, and the corridor property
> target says "no target found in scripts". if anyone has any insight or
> step by step on how to build a corridor for a custom channel cross section
> and is willing to share, i would really appreciate. thanks.