Extend sample lines until surface border/polyline

[Anonymous]

HI.

Civil3D 2021.

Windows 10.

I have created some sample lines on an alignment with the "Pick points on screen" method.

 

Is there a way to extend them to the surface border shown (in red)?

I tried:

-Editing them to use the "By range of stations..." method that allows extension until an alignment, but I can only use that method at creation moment. I could just delete the sample lines and create them again with this method, but I'd have to specify the distances between stations. I can't do that, because I have to create them by clicking them at certain intersections in the drawing.

-Convert the surface border to 3d/2d polyline and extend the sample line with the grip, using the snaps. I don't know why, but the tool doesn't snap to the intersection.

Any suggestions? 

Thanks in advance. 

[Jeew-m]

Hi,

you can extend all sample lines to the maximum swath width at once. Is it OK for you?.

[Anonymous]

In that case, some sample lines would be larger than the surface and part of the section views would be blank:

 

So, that wouldn't work (unless there's an automatic way that the section views adapt to show only the intersections with surfaces and not the blank parts).

[m_kingdon]

I don't think this is possible.  Sample lines are usually the same size so multiple section views can be arranged for plan production.

[jmayo-EE · Accepted solution]

This is what I would do.

Extract the surface boundary.

Explode the sample lines, explode again and copy these lines to the clipboard with a base point of 0,0

Undo twice to get the sample lines back if you need them.

Paste the lines from the clipboard into your file and extend to the surface boundary

Select one of the lines, right-click and Select Similar to select all the lines.

Use Join to make them plines.

Create new sample lines from objects.

Sounds like a better job for Dynamo if you need to do this often.

[Joe-Bouza]

By the looks of your screen capture , grip edit should take a few minutes.

it is too bad you missed the left and right offset distance while your were picking 

[Anonymous]

I gave up and just manually extended the sample lines using the grips, until near the border.

I marked your post as solution because I think that would work, though with a lot of work. XD

Thanks to all

[TerryDotson]

This has been added to DotSoft's C3DTools as SampleLine Extend, simply pick an alignment and specify an option of surface (pick one), objects (pick multiple) or enter absolute, increment, or percent (scale).

[Jeew-m]

This reply is late. But It should work.

Extract surface boundary.

Create a corridor with two simple generic link subassemblies. Add custom frequency lines to the corridor where you need the sample lines. (See Video)

They should target the surface boundary. We are dealing with point codes here. Then extract the point codes from the corridor. (See video)

Then use the offset point report to get a report of the extracted points. (See video)

It will contain station and offset of the points at the surface boundary. 

Filter the stations you need to add the sample line and delete others.

Then go to create sample lines. Create sample lines at desired stations with the desired offset. (See video)