Edit horizontal data for feature lines

00:06

We're going to talk about editing feature lines.

00:08

Specifically, we're going to talk about editing horizontal data for feature lines.

00:12

So what I'm going to go ahead and do is I'm going to zoom in on this top of bank feature line.

00:16

Ultimately, what we're going to end up doing is probably deleting this feature line,

00:19

because we've already applied these points to our surface, so we don't need this feature line anymore.

00:24

But what I'm going to go ahead and do is I'm going to select my feature line,

00:28

and in the contextual ribbon bar, what you will see is you have an area for Edit Geometry.

00:33

Inside of edit geometry, you have all of the options available to you for how to edit your horizontal data for your feature lines.

00:42

So what you can do is you can insert PIs.

00:44

So you can insert a new vertex or a vertice for your feature line.

00:50

You can also delete your vertices.

00:53

So I can delete out a vertice and now, nowhere we're using that point for my feature line.

01:00

Then we get into the more nuanced commands.

01:03

So we have break, which is just like a polyline break.

01:06

I can select a line and I can break it to a certain point.

01:08

So I have now separated this feature line into two separate feature lines.

01:12

I can then take this point, bring it back to here, and then I can use the Join command, which is right here,

01:21

and I can join it to this feature line here, and hit "Enter".

01:24

Now they're joined again.

01:25

If I wanted to, I could draw a polyline across here,

01:30

and I can select this feature line and do a Trim command using this feature line, and then trim it out.

01:41

Now, I can move on to this.

01:44

Reverse just changes the read order.

01:47

So when I drew this feature line, and I drew it from this direction, across this way,

01:51

so that's the redirection, reverse would change the redirection back to this direction.

01:57

You can edit your curves, if you had a curve. You can fill it.

02:01

So what we're going to go ahead and do is we're going to fill this.

02:05

And so Civil 3D is going to ask me to specify a corner.

02:08

So I'm going to go ahead and specify a corner.

02:11

And what you can see here is that I placed a curve in here.

02:14

So now I can go ahead and edit this.

02:18

So it says, select feature line curve to edit or delete.

02:22

I can select that line and now I can choose a radius for that curve.

02:25

So what I can go ahead and do is I can say, I want that radius to be 350 feet, and hit "Enter" and hit "Apply" and "OK".

02:33

And now I have a 350-foot radius curve running between my two tangents.

02:39

Moving on from there, what you have is you can fit a curve.

02:42

If you didn't have any curves, you could base it off of a number of vertices.

02:47

You can also smooth.

02:49

So if I click Smooth, it would basically create a spline-like feature line.

02:56

Then moving on from there, you can weed.

02:58

So you can weed your feature lines even after you've created them, if for some reason you have too many vertices.

03:05

And then from here, you can create a feature line from a stepped offset.

03:08

So you can do that Stepped Offset command inside of your Edit.

03:11

So what I'm going to go ahead and do is I'm going to do that so that we can see what a stepped offset looks like.

03:16

And then we'll delete both of them.

03:19

So I initiated the stepped offset, it says, specify offset distance.

03:23

So I'm going to say 10 feet.

03:27

Says, specify side to offset, so I can click which side I want to specify my offset for.

03:32

So I'm going to offset down slope.

03:35

Now it's saying, specify elevation difference, grade, slope, elevation, or variable.

03:41

So if I want to do a grade, I can say I want to do a 25% gradient, or I can do a 2-to-1 slope, or I can specify a specific elevation.

03:54

I can say I want do a negative 10 feet.

03:55

So that's what I'm going to go ahead and do, I'm going to say elevation, "e" for elevation.

03:60

And then I am going to specify -- well, actually, elevation will be a specific elevation difference, "d" is an elevation differential.

04:09

So I'm going to say elevation differential of negative 10.

04:13

And so if I go in here, and now I have two feature lines that are offset from each other.

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And this feature line, if I looked at the elevation components of it, would be 10 feet lower than the elevation components of this line here.

04:26

So ultimately, what I'm going to go ahead and do is I'm going to select both of them, I'm going to hit "E" for erase and erase both of them.