subassembly

[shashimanandhar1417]

I have to model a corridor along a flood defence system. I have a situation where I have to create subassembly so that I can drag the bottom points along the surface to points defined as shown on attached image clip. The bottom points location varies section to section. Any idea how do I create subassembly which would create corridor according to my requirements.

[Anonymous]

First at all, Hi men,

Then could you please give us more details?

Do you have a polylign as a target or you are looking for a surface as a target?

[shashimanandhar1417]

Haykel,

The attached image is just a sketch. Actually I have Surface as a target. Thanks for your response.

[Anonymous]

How are your bottom points defined in Civil3D?

Do you have two polylines along your axis?

[shashimanandhar1417]

Haykel,

Thanks for response. I can join the bottom points where the corridor meets the surface and make 3d Polylines. The point is can I create a subassembly which will allow to stretch the end of the inclined lines ("daylight") to meet the assigned points section by section basis.

[doni49 · Accepted solution]

Are you saying that the daylight point will vary from section to section?  That sounds like the job for a target alignment.  Create an alignment that has a PI at the daylight location at each section.  Then have your corridor target that alignment.

[shashimanandhar1417]

Doni,

Thanks for your response. You might be right. But I have not yet tested your option. Further to clarify my situation I have attached a file where sections are superimposed at same datum. I think this sketch will tell you clearly what need to be done. Would the concept of creating target alignment solve this problem.

[shashimanandhar1417]

With regards to my previous post. Just to note that attached was just an example sections. I have got the sections at 200m intervals for 30.2 km.

[Yonas89]

If I understand you correctly your slope at different chainage varies and daylight points in plan are fixed. Then I think you just need an offset target for your daylight link.

[Dexterel]

To understand better:
You have 3 surfaces and an left and right offset target (alignment or polyline)
Every 200m you need to target a different surface (by rotation)?
So on station 190 you target first surface and on station 201 you target the next surface?

[shashimanandhar1417]

Doni49,

Thanks for your suggestion. Just today I got opportunity to get back to this problem and I did as you suggested and it worked. I used daylight from "LinkOffsetOnSurface" and targeted that link to the Alignments that I assigned for the Left and Right constrains. Yonaa89 is also right. Thanks to both of you and all participants.