Join Josh Modglin for an in-depth discussion in this video Editing alignments, part of AutoCAD Civil 3D Essential Training.
- [Instructor] I think you're starting to see now a pattern in how we're creating our exercises. Really the pattern is something that you want to create or follow while you're doing your Civil design. Create something simple and something to start with. Add it and use the power of Civil 3's editing features. Then follow up and make sure all your labels are placed correctly. But at any time as we've seen with alignments the labels are automatic.
We'll cover that in more detail. We've created our alignment. Now let's edit our alignment. We're going to go ahead and open up our exercise for editing. That's the 06_04_AlignEdit we see the alignment already here with the curves in there. We're going to select that alignment. Now when we select that alignment we get a few different types of grips. Let's cover those grips. First are the square grips. Square grips are changing the coordinates of an object.
When you see a triangle that is straight up that is referring to the point of intersection of these two tangents. It's the implied intersection. If we select that we actually are changing the coordinates for the end of this line and the start of this line. We're changing the coordinates for both fixed lines. The grips here for the circle, because they're a free circle, would change the point of curvature or the point of tangency.
So we can slide this along this direction and you notice that it's changing the point of tangency. Ultimately of course we're changing the point of the curvature as well, and the radius itself. This middle circle grip is not a midpoint. It's a point that defines a pass-through point for our curve. It simply means that this curve has to pass through this point. If I pick here what it has done is changed the radius so as to have the curve pass through the point that was selected.
Lastly we have the triangle that's right off the midpoint. If I pick that triangle it allows me to adjust the radius. If you're using dynamic input as you see here in my screen. We can actually type in a radius. It will pick up that information. A lot of different grips that allow us to edit our alignments. But beyond the grips we also have within our geometry editor some features.
As we've already covered we can delete or insert PIs. One of the most powerful methods is using the grid view. So at the very end of my alignment layout tools toolbar you can choose grid view. Grid view opens up the panorama palette and presents all the information about the alignment entities. These are all the different entities that make up the alignment. You can change even the constraint.
So maybe you chose the wrong constraint for an object such as the curve. You can always change that after the fact. Depending on the constraints will make a difference on what information you can change here in the grid view. As I pick these items, notice in the auto cad space the model space is highlighting which items I have selected. You see here that I also have the ability to type in a change of the radius.
We're going to set both radii to 150 feet as our radius selection. We can make that change quickly here. What usually happens is we're going to use the grips to graphically edit and get us close. And then we'll use the grid view to give us nice clean round precise information. Between the two different methods of editing we'll have a very well-defined, clean alignment.
This course gets you up and running with AutoCAD Civil 3D. First, instructor Josh Modglin shows how to model a surface, lay out parcels, and design geometry, including the making of horizontal alignments and vertical profiles. Next, Josh demonstrates how to create corridors, cross sections, pipe networks, and pressure networks. Then, he covers working with feature lines and grading objects, and how to share your data. He wraps up by providing an overview of plan production tools.
- Navigating the Civil 3D interface
- Using point groups and description keys
- Importing survey data
- Managing figures
- Creating and analyzing surfaces
- Creating parcels
- Working with alignments
- Working with profiles and profile views
- Working with assemblies and subassemblies
- Creating Basic and Advanced Corridors
- Using an Intersection Object
- Making sample lines, cross sections, and section views
- Creating a pipe network
- Understanding pressure parts
- Creating and editing feature lines
- Creating and editing grading objects
- Sharing and referencing data
Skill Level Beginner
Some of the exercise files do not properly function.
This course was built to work with the latest release of AutoCAD Civil 3D. If you are not running AutoCAD Civil 3D 2018 there are some exercise files that will not work for you.
AutoCAD Civil 3D: Designing Residential Projectswith Eric Chappell3h 11m Intermediate
AutoCAD Civil 3D: Designing Gravity Pipe Systemswith Eric Chappell3h 33m Intermediate
1. What Is Civil 3D?
What is Civil 3D?4m 43s
2. Civil 3D Interface
3. Establishing Existing Conditions
4. Modeling a Surface
5. Layout of Parcels
6. Design Horizontal Geometry: Alignments
7. Designing Vertical Geometry: Profiles
8. Civil 3D Corridors
10. Gravity Pipe Networks
11. Pressure Part Networks
12. Feature Lines
13. Grading Objects
14. Share Your Data
15. Plan Production Tools
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