Discover the step-by-step process of editing profiles using grips, focusing on design profiles and tangent sections. Learn to manipulate entire lines or only endpoints, how to maintain tangency, and the importance of vertical curves in controlling your profile.
Key Insights
- The article explains how to select and edit profiles using grips, primarily focusing on design profiles and tangent sections. It demonstrates how to shift entire lines while maintaining the grade, and how to alter just the endpoint of a line.
- Maintaining tangency within the profile is emphasized, especially when moving elements around. This is critical in controlling what occurs within the vertical curve of the profile.
- Various grip edits for the point of vertical intersection and changing the length of tangent sections are discussed. Also mentioned are options for elevating the curve evenly on both sides, or lengthening the curve on one side.
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In this video, we're going to go ahead and talk about how do you edit profiles using grips. So in order to do that, I'm going to stay here focused in on my dev main profile.
And what I'm going to do is I'm going to select my design profile. When I do that, what you'll notice is that we have grip edits that are very similar to our alignment grip edits that we talked about when we were dealing with grip edits for alignments. So from here, what you can see is you have grip edits for the tangent sections here and the tangent section here.
So you have options for shifting the entire line or just shifting the end point of the line. Same thing with this line, you can shift the entire line, maintaining the grade, or you can shift the end point of the line. And while we're moving these around, you'll notice that we are maintaining tangency for our profile.
So that's important because that has a good control over what happens inside of this vertical curve. So inside of the vertical curve, we have the grip edits for the point of vertical intersection. We also have the edits for changing the length of the tangent sections.
We have the options for elevating the curve. So this is going to lengthen the curve equally on both sides. Then you can lengthen the curve on one side or lengthen the curve on the other side.
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So in our instance here, I can tell that this profile has a little bit of cut everywhere. So I may not want to have my profile exactly like this. So what I'm going to go ahead and do is I'm going to grab this PVI grip.
I'm going to drag it around and I'm actually going to go ahead and pick it somewhere so that my curve is going to start to better approximate what's happening on my right-hand side with the terrain. And then on my left-hand side, we'll just have to deal with that a little bit because we're going to make some edits to the end point over here. So what I'm going to do is I'm going to come over here.
I'm going to turn on my ortho mode by hitting F8 so that I'm moving only vertically. Then I'm going to go ahead and move to a point where I think that this profile is starting to fill a little bit and cut a little bit and maybe be a little bit better balanced. So I'm going to pick somewhere in here and this slope, one and a half percent, I'm comfortable with that.
The slope here being at 0.3 percent, not so great, but I know that in a future video we're going to go ahead and elevate this end point right here. So for now though, we're going to go ahead and save and I'll meet you in the next video where we're going to create our profile for our branch alignment.
