Join Josh Modglin for an in-depth discussion in this video Sample lines, cross-sections, section views, and relations, part of AutoCAD Civil 3D Essential Training.
- [Instructor] When working with linear design a lot of times we're going to want to see our design or jurisdictions or contractors may require to see the design in cross sectional format. Cross sections are very similar to profiles, in fact, the presentation is pretty much the same. How the information is sampled is different. A profile is going to follow the longitudinal path of the alignment, whereas a cross section is generally perpendicular to the alignment.
You simply provide a swath width or an offset to the left and an offset to the right of that cross section. But the concept's the same, you're still cutting the earth, its just the direction or means of how you're going to cut that earth. To do cross sections, you need a linear path to create those cross sections in a perpendicular way. So an alignment is the parent of cross sections. To create the cross sections, you can have varying widths to the offset to the left and offset to the right and you can have a lot of different sections that you sample, you have within Civil 3D what are called sample lines because, of course, cross sections are children of an alignment, really the sample lines are children of the alignment as well.
Sample lines, there is so many of them that you really have a group of collection of them that you can apply changes to the entire group to speed up the process and, of course, that's a child of the alignment. The means to view cross sections is very similar to profile views. In the sense that you need some type of grid establishing information such as the offset and what is the elevation. And because all a cross section really is is information about offset and elevation for the different lines that are being drawn there, you have, just like with a profile, you have what's called a section view and it's a child of an alignment as well.
That's a lot of items that are connected to an alignment, so in my tool space here under prospector, I go to Alignments, under Centerline Alignments, Osceola Road, we have the profiles, profile views, and notice we have sample line groups. Under sample line groups, I have the sample line group named Osceola Road, under the sample line group, I have sample lines, we know what that dot means. There's a lot of sample lines drawn or a collection listed here as well as sections of all the items that were sampled.
And then all the different views that are children of the sample line group, which is a child of the alignment. So understanding those relationships and realizing really what you are deleting when you delete an alignment. You're connecting or deleting everything connected or a child of that 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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