Join Josh Modglin for an in-depth discussion in this video Managing points with point groups, part of AutoCAD Civil 3D Essential Training.
- [Instructor] We looked at styles and really to manually manipulate each point and point label style on thousands of points, really it's going to be cumbersome to say the least. So what if you could automate the process? Civil 3D provides multiple ways to do so. The simplest level of automating point styles is to go through point groups. Let's go ahead and open up our exercise file. And that would be our 03_02_PointGroups and we see here our two points that we added in our last exercise.
And so what we're going to do is just take a look briefly at these points. I'm going to select one of them and we're going to choose properties. So notice again that the properties for the style and point label style are set to default. What does this default mean? Well if we go to the home and open up our tool space we'll see in our prospector that there is a section called point groups. And by default, similar to layer zero, any time there is a point in the drawing there will be an all points point group created.
If I right click on the all points point group and go to its properties notice that it has default styles. So any point in the drawing that has its point style and label style set to default and belongs in the all points point group then will contain or have these styles associated. Notice if I change the style for the point label to just elevation and click okay, these both change automatically.
What are point groups? Point groups really are a way of tagging a point. A point can belong to multiple point groups and these groups can be used to stylize the point and the label, the point groups can be used for point selection, and even used for surface creation. Think of point groups more like hashtags than layers. Layers, an object must belong to a layer but it can only belong to one. Whereas a point must belong to a point group but it can belong to many point groups.
Let's create another point group. I'm going to right click here in my prospector on point groups, and choose new. Now we're going to name this group fire hydrant. We're going to set the point style to making the points look like a hydrant, and then we'll set our label style to elevation just description. Now which points to include in the point group? Well we can use different methods to include points in the point group.
We can just select the points manually. But a much more effective method is to automatically add any points that have the raw descriptions matching, and then you can type in any selection of raw descriptions. You can have multiple raw descriptions. You can even add wild cards to the descriptions. And it will include all those points that are associated to those different raw descriptions. So when I click okay, notice that now my two points change to looking like the fire hydrant point style.
These points belong to both point groups. If I select all points and you notice this little dot, that little dot represents there's a collection and you see the collection below. So in prospector when I select this object that has a little dot I can see the collection of all the objects within that specific point group, and point one and two are there. They're also in the fire hydrant. So they belong to both point groups. Which point group controls how it looks? When I select this point notice as I scroll down in the properties, there's such a thing as what's called a primary point group.
And for it, it's fire hydrant. So the first point group that it finds itself in, that's the point group that's primary and that's the style that will be associated. How do we change primary point groups? Again, right click on point groups here in prospector, we'll choose properties, we're going to take our all points, push it up. And so what will happen is it works through this list of point groups. It will find the points in the all points point group first and apply the styles associated to that point group.
So point groups, we're using them in this exercise to stylize the point and label. But they can also be used for point selection and surface creation. So remember a few controls here. Primary point group, the point that will be associated visually must have their style and point label style set to default. Think of default similar to by layer. When you create a line, if its color is set to by layer then it will pick up whatever the layer's color is.
Or you can override it. So there is a few different settings there with the style. Default means it's going to pick up whatever the primary point group style. So we see a way to manage points using point groups.
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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