Join Jeff Bartels for an in-depth discussion in this video Introducing parcels, part of Civil 3D Essential Training.
- [Voiceover] The most important component of any project is the delineation and annotation of property boundaries. Civil 3D helps us manage property through the use of parcels. Using parcels, we can create intelligent lot geometry that automatically reacts to design changes. The first step in creating parcels is understanding the concept of a site. In this lesson we'll explore the relationship between parcels and sites. Now, I've just opened a drawing called Parcel Intro. You'll find this in the Exercise Files folder. I'd like to create some geometry in this drawing.
I'll do that on the Home tab. I'll move up to the Draw panel, and I'll launch the Rectangle command. I'm going to start my rectangle here in the lower left corner of model space, and then I'll come down and select Dimensions. We'll use a length of 120 and then a width of 60. I'll press Enter, and then I'll click on screen to finish the rectangle. Let's pan this over, and then I'm going to move up and launch the Polyline command, and I'll create a polyline over here to the right. When I'm finished, I'll press Escape. So I have some geometry.
Let's convert this geometry into parcel segments. We'll do that by coming up to the Create Design panel. I'll open the Parcel menu, and I'll choose Create Parcel from Objects. I will then select these objects, and I'll press Enter. And the first thing I'm asked is to select a site. Now, site probably isn't the best word, group would be a better word for this. Parcel segments within the same group, or site, will interact, we'll look at that in just a second. I'm going to create a new site, by clicking this icon over here to the right.
I'm going to call my site Subdivision, then I'll click Okay. I can then select a parcel style. If I open the menu, we can see the default template comes with several. Let's choose Single-Family. Next I can select my object layers. As you can see, parcels will be placed on a layer called C PROP, and parcel segments, or geometry that doesn't create a closed shape, will be placed on a layer called C PROP LINE. Let's keep the defaults. Finally, we can talk about parcel labels.
Parcels are labeled using three different styles, one for the area, one for the straight segments, and one for the curves. I'm going to select an area label style. Let's open the menu, and I'll choose Name Square Foot & Acres. If I wanted to label the geometry, I would check this box and select the appropriate styles. I'm going to keep the default setting and have those turned off for right now. I'm also going to keep the Erase Existing Entities option. This will eliminate the entities on screen, and they'll be swapped out with parcel geometry.
I'll click Okay when finished, and we can see the result on screen. I'm going to hover over this object, notice it says it's a parcel segment. We can see the site name, where it exists. This is in the subdivision site. Let me hover over this object, this is also a parcel segment within the subdivision site. Now, why do they look different? Well, when I turned these into parcel segments, this one happened to create a closed shape, so it created a parcel, and that parcel has a style on it. In fact, it's the Single-Family style.
Knowing that, you may be wondering, how do you select a parcel. I mean, if I click out here, I'm selecting the parcel segment. To select a parcel, you'll select the area label. I'm going to press Escape to deselect. Let's come over to Prospector, and I'm going to expand the Sites category. In here we can see two sites, the default, Site 1, and a site I created called Subdivision. Let me expand this, and then I'll expand the Parcels category. Right here we can see our single site. Now, remember this parcel segment is part of the same site.
I'm going to come up and launch the Move command, I'll select this segment, and I'll press Enter. I will then pick it up from a point over here to the right, I'll move it over, and I'll place it on the lot. Notice what happens. This is the interaction I was talking about. When parcel segments are within the same site, they will interact. In this case, the straight segment is subdividing my original parcel, and now I have two parcels. Just for a second we'll come over to Prospector. Note the parcels area needs to be updated. I'm going to right-click on that, and I'll choose Refresh.
And now we can see Single-Family 1 and 2. If I select this lot line, I can click the grip at the end, and as I move this back and forth, we can see how the areas update. Now, this line is still selected, let's move it into a different site and see what happens. To do that, I'll come up to the contextual ribbon, and I'll choose Move to Site. Let's move this into the other site, Site 1. That one is already selected. I'll come down and click Okay. Notice the difference, we are left with a single parcel. These objects are no longer part of the same site, so they no longer interact.
The entity is still selected. I'm going to come back to Move to Site. We'll choose Subdivision this time. I'll come down and click Okay. Once again, my lot is subdivided. Let's pan this over, and we'll talk for just a second about parcel styles. I'm going to press Escape, and then I'll select this parcel on the right. I'll do that by clicking on the area label. Now, how do we change the style? Same way we change the style on an alignment or a surface. I can do it over here at the Properties pallet. Right here we can see the style is Single-Family. Let me open this up, and I'll choose Open Space.
We can see the difference. I'll choose Property, and I'll choose Road. When I'm finished, I'll move away, and I'll press Escape to deselect. Let's put some labels on here quickly. I'm going to select the parcel on the left by clicking the area label, and then I'll come up to the Add Labels menu, note it's the same workflow we use for labeling an alignment or a surface. I'll open the menu, and I'll choose Multiple Segment. I'll select the area label on the left, and I'll press Enter. And I'll select this one on the right, and I'll press Enter.
When I'm finished, I'll press Escape a couple times to deselect. Once again, I'll select this crossing parcel segment, and I'll click the grip here at the top. And as I move this back and forth, you can see how all of the area labels and property labels update automatically. Just for a second, imagine how easy it would be to create a plat of subdivision using parcels. So when it comes to the concept of sites, it's easier to think of them as groups. Parcel segments within the same group will interact, and it's this interaction that creates intelligent parcels, capable of updating automatically when a design changes.
- Exploring the design data in drawings
- Creating, connecting, and grouping points
- Customizing label styles
- Defining existing ground surfaces
- Designing horizontal alignments
- Controlling alignment properties
- Creating profiles and profile views
- Sharing design data
- Creating and managing parcels
- Building assemblies
- Modeling advanced roadways
- Defining gravity-based pipe and pressure pipe networks
- Creating sections and section views
- Analyzing designs
- Generating plan sheets
Skill Level Intermediate
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AutoCAD: Tips, Tricks, and Industry Secretswith Jeff Bartels3h 48m Intermediate
Up and Running with Civil 3Dwith Jon Michael Roberts2h 31m Beginner
Basic Roadway Design with Civil 3Dwith Eric Chappell2h 47m Beginner
1. Laying the Foundation
2. Creating and Managing Points
3. Defining Existing Ground Surfaces
4. Designing Horizontal Alignments
5. Creating Profiles and Profile Views
6. Sharing Design Data between Drawings
7. Creating and Managing Parcels
8. Creating Basic Roadway Models
9. Exploring Advanced Roadway Modeling Concepts
10. Modeling Gravity-Based Pipe Networks
11. Modeling Pressure Pipe Networks
12. Managing Sample Lines
13. Creating Sections and Section Views
14. Exploring Grading Tools
15. Analyzing Designs
Using the Inquiry Tool6m 7s
16. Generating Plan Sheets
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