topic Re: feature line direction arrow label in Civil 3D Forum

feature line direction arrow label

CLG1972 — Mon, 14 Dec 2015 15:27:24 GMT

Is there a way to direction arrow point to the lowest point dynamically. I have labels on my feature line which update automatically, however the direction arrows are all the same direction.

Re: feature line direction arrow label

troma — Mon, 14 Dec 2015 15:42:31 GMT

You need an expression.

Something like this:

Give it a good name like "direction of flow"

Then in your label style composer, for the rotation of the arrow choose "direction of flow".

BTW I use a Block for my flow arrow, not the "Direction Arrow" option within the label. I can't remember if it's possible to rotate that one or not.

Re: feature line direction arrow label

Maine-iac — Fri, 02 Sep 2016 14:29:51 GMT

Thanks Mark this worked great for me. Usually relied on building the surface from feature lines then doing two point surface slope labels. Now I can skip the surface build and label all the segments of a feature line by using the multi segment feature line labeling. Would hope that original poster "CLG1972" would accept this as a solution. I almost didn't view this post as it was not accepted as a solution.

Re: feature line direction arrow label

BrianHailey — Fri, 02 Sep 2016 15:02:38 GMT

For those that aren't aware, the default template that ships with Civil 3D has this expression in it already.

Re: feature line direction arrow label

troma — Fri, 02 Sep 2016 17:29:44 GMT

I did not know that. Which year did that start in?
Had to figure this out for myself (after being informed that it wasn't possible).

Re: feature line direction arrow label

BrianHailey — Sun, 04 Sep 2016 04:19:13 GMT

@troma wrote:
I did not know that. Which year did that start in?
Had to figure this out for myself (after being informed that it wasn't possible).

I don't know, about a decade ago?

Re: feature line direction arrow label

troma — Tue, 06 Sep 2016 02:15:03 GMT

Well maybe our company template was set up wrong. Because it certainly didn't have any expressions in it. The only styles for everything were 'Standard' and 'Basic' until we made our own.

Re: feature line direction arrow label

BrianHailey — Tue, 06 Sep 2016 13:11:46 GMT

Back in the day (I believe prior to 2009/2010 or thereabouts) Civil 3D shipped with multiple templates. Something like "Basic", "Expanded", and "LandDesktop". Later they combined them all into one template. Sounds like your company started with the "Basic".

Re: feature line direction arrow label

CLG1972 — Tue, 06 Sep 2016 13:54:47 GMT

I was finally able to try this out and was able to get it to work. Thanks for the solution and I am sorry I was not able to answer sooner.