Now that you have captured the nature of the existing ground along the road centerlines using surface profiles, and you have reshaped it using layout profiles, it’s time to specify how you intend your design to be built. A wavy line in the drawing simply isn’t enough information for a contractor to start building your design. You need to provide specific geometric information about the profile so that it can be re-created in the field. This is done with various types of annotations available in the AutoCAD® Civil 3D® software.
It’s also important that the framework in which the profiles are displayed is properly configured. As you learned in the previous chapter, the grid lines and grid annotations behind your profiles form a profile view. In this chapter, you’ll look at applying different profile view styles to control what information about your profiles is displayed and in what manner.
Finally, it’s often necessary to show other things in a profile view that might impact the construction of whatever the profile represents. Pipe crossings, underground structures, rock layers, and many other features may need to be displayed so that you can avoid them or integrate your design with them. One way of showing these items in your profile view is through a Civil 3D function called object projection.
In this chapter, you’ll learn to
As with any object style, you can use profile styles to show profiles in different ways for different purposes. Specifically, you can use profile styles to affect the appearance of profiles in three basic ways. The first is to control which components of the profile are visible. You might be surprised to know that there are potentially eight different components of a profile. The second is to control the graphical properties of those components, such as layer, color, linetype, and so on. Finally, a profile style enables you to control the display of markers at key geometric points along the profile. Once again, you might be surprised at the number of types of points that can be marked along a profile: there are 11 of them.
In this exercise, you’ll assign different profile styles to a profile and observe the different ways profiles can be represented.
Profile Styles.dwg
located in the Chapter 08
class data folder.
The profile disappears from view.
The profile now shows curves and lines as different colors and includes markers that clearly indicate where there are key geometry points (see Figure 8-1). This might be helpful while you’re in the process of laying out the profile, but it may not work well when you’re using the profile to create a final drawing.
Figure 8-1: The Layout profile style displays lines and curves with different colors as well as markers at key geometric locations.
You can view the results of successfully completing this exercise by opening Profile Styles - Complete.dwg
.
Figure 8-2: Using Prospector to access the Properties command for the Jordan Court EGCL profile
Styles are especially important when you’re working with profile views because of their potential to dramatically affect the appearance of the data that is being presented. Among other things, profile view styles can affect vertical exaggeration, spacing of the grid lines, and labeling.
In this exercise, you’ll assign different profile view styles and observe how they can change the way profile information is presented.
Profile View Style.dwg
located in the Chapter 08
class data folder.
Note the additional grid lines that appear (see Figure 8-3).
With this change, the vertical exaggeration is reduced to 5. This makes the profile appear much flatter.
Figure 8-3: Additional grid lines displayed as a result of applying the Major & Minor Grids 10V profile view style
This is an example of how the graphical standards of a client or review agency can be built into your Civil 3D standard styles, making it easy to meet the requirements of others.
You can view the results of successfully completing this exercise by opening Profile View Style - Complete.dwg
.
Profile view bands can be added to a profile view along the top or bottom axis. You can use these bands to provide additional textual or graphical information about a profile. They can be configured to provide this information at even increments or at specific locations along the profile.
In this exercise, you’ll configure bands for the Jordan Court profile view so that information about stations, elevations, and horizontal geometry can be displayed.
Profile View Bands.dwg
located in the Chapter 08
class data folder.A new entry is added to the list of bands.
Figure 8-4: Assigning Jordan Court EGCL as Profile 1
Across the bottom of the profile view, there is now a band that labels the stations and elevations at even increments (see Figure 8-5).
Figure 8-5: The newly added band showing stations, existing elevations (left), and proposed elevations (right)
The new band is a graphical representation of the alignment geometry. Upward bumps in the band represent curves to the right, and downward bumps represent curves to the left. The beginning and ending of each bump corresponds with the beginning and ending of the associated curve. There are also labels that provide more specifics about the horizontal geometry.
You can view the results of successfully completing this exercise by opening Profile View Bands - Complete.dwg
.
Profile labels are similar to alignment labels. They’re applied to the entire profile or to a range within the profile, and they show up wherever they encounter the things they’re supposed to label. For example, if a vertical curve label is applied to a profile that has three vertical curves, then three vertical curve labels will appear. This approach offers two advantages. The first is that you can label multiple instances of a geometric feature with one command. This becomes significant when you’re working on a long stretch of road with dozens of vertical curves. The other advantage is that labels appear as new geometric features are added. Continuing to use vertical curves as an example, if you apply a vertical curve label to a profile, curve labels will appear or disappear automatically whenever you create or delete vertical curves.
In this exercise, you’ll configure the labels for the Jordan Court design profile so that tangent grades and curve data are labeled.
Profile Labels.dwg
located in the Chapter 08
class data folder.Type | Style |
Sag Curves | Sag Only |
Lines | Percent Grade |
Grade Breaks | Station over Elevation |
The list of labels should appear as shown in Figure 8-6.
Figure 8-6: The list of labels to be applied to the Jordan Court FGCL profile
You can view the results of successfully completing this exercise by opening Profile Labels - Complete.dwg
.
In the previous exercise, you used several types of profile labels to annotate the design profile for Jordan Court. Each one had to be selected and added to the list of labels, making this a multistep process. A profile label set enables you to store a list of labels for use on another profile. The settings for each label—such as weeding, major station, minor station, and so on—can also be stored in the label set. This is quite helpful if you use the same profile labels for multiple profiles. A label set can even be stored in your company template so it’s always there for you to use.
In this exercise, you’ll use a label set to capture the label configuration for Jordan Court and apply it easily to Logan Court.
Profile Label Set.dwg
located in the Chapter 08
class data folder.Figure 8-7: Logan Court FGCL profile after the newly created profile label set has been applied
Two grade-break labels and a grade label have been added to the Logan Court FGCL profile (see Figure 8-7).
You can view the results of successfully completing this exercise by opening Profile Label Set - Complete.dwg
.
You have just seen how useful profile labels can be because they are applied to the entire profile and continuously watch for new geometric properties to label. However, this dynamic nature may not be ideal in certain situations, or you may need to provide annotation in your profile view that isn’t related to any profiles in that view. Profile view labels are the solution in this case.
Profile view labels are directly linked to the profile view: the grid, grid labeling, and bands that serve as the backdrop for one or more profiles. Because of this, you can use labels that are independent of any profiles. For example, you might use a station and offset label to call out the location of a pipe crossing through the profile view. Because the pipe crossing isn’t directly affected by any profile in the drawing, it wouldn’t make sense to associate this label with a profile. Instead, you would use a profile view label that is specifically intended for the pipe crossing.
Three types of profile view labels are available in Civil 3D: station elevation, depth, and projection. You’ll work with the first two in the next exercise, and the third will be covered later in this chapter.
In this exercise, you’ll use profile view labels to label the location where Jordan Court ties in to Emerson Road, including the identification of the ditch area.
Profile View Labels.dwg
located in the Chapter 08
class data folder.
This drawing is zoomed in to the left end of the Jordan Court FGCL profile. At this location, there is a PVI where the new road ties to the edge of the existing road. There is also a V shape in the existing ground profile that shows the existence of a roadside drainage ditch (see Figure 8-8).
Figure 8-8: The beginning of the Jordan Court FGCL profile, where there is a tie to the edge of the existing Emerson Road as well as a V-shaped drainage ditch
A new label appears, but it’s overlapping the grade label to the left.
The Text Component Editor dialog box should now look like Figure 8-9.
The label now clearly calls out the station and elevation where the new road should tie to the existing road.
Figure 8-9: Additional text added to a label in the Text Component Editor dialog box
Both the station-elevation label and the depth label can be seen in Figure 8-10.
Figure 8-10: The station-elevation label and depth label added to the Jordan Court profile view
You can view the results of successfully completing this exercise by opening Profile View Labels - Complete.dwg
.
At times, it may be necessary or helpful to show more in a profile view than just the existing and finished profiles of your design. Features such as underground pipes, overhead cables, trees, fences, and so on may be obstacles that you need to avoid or features that you need to integrate into your design. Whatever the case, Civil 3D object projection enables you to quickly represent a variety of objects in your profile view and provide the accompanying annotation.
When you project an object to a profile view, different things can happen depending on the type of object you have chosen. For linear objects such as 3D polylines, feature lines, and survey figures, the projected version of the object is still linear, but it will appear distorted unless it’s parallel to the alignment. This can be a bit tough to envision, but just imagine a light being shone from behind the object in the direction of the alignment. The projection of this object seen in a profile view would be somewhat like the shadow cast by the object. The parts of it that are parallel to the alignment would appear full length, and the parts that aren’t parallel would appear shortened.
Based on the settings you choose, the elevations that are applied to a projected linear object can vary. For linear objects that are already drawn in 3D, you can choose to use the object elevations as they are. For 2D objects that need to have elevations provided, the elevations can be derived from a surface or profile.
Objects that indicate location—such as AutoCAD points, Civil 3D points, and blocks—are handled a bit differently than linear objects. They are represented with markers or as a projected version of the way they are drawn in plan view. This can lead to a distorted view of such objects because of the common practice of applying a vertical exaggeration to the profile view. The options for assigning elevations to these types of projections are the same as the options for linear objects, with one addition: the ability to provide an elevation manually. This allows you to specify the elevation graphically or numerically; independent of a surface, a profile, or the actual elevation of the object you’ve selected.
In this exercise, you’ll use object projection to show a water line on the Jordan Court profile view.
Object Projection.dwg
located in the Chapter 08
class data folder.The projected version of the water line is shown in the profile view (see Figure 8-11). Note the strange bends in the line around station 12+00 (0+360). These are caused by the alignment turning away from the water pipe at this location, which produces some odd projection angles and distorts the projected appearance of the water pipe.
Figure 8-11: A 3D polyline representing a water pipe has been projected into the Jordan Court profile view.
As you can see, the points are inserted with a marker and a label that indicates the station and ground-surface elevation of the test boring (see Figure 8-12).
Figure 8-12: A Civil 3D point projected to the Jordan Court profile view
It looks similar to the projected Civil 3D points, even though the source object in this case is a block with no elevation assigned to it.
You can view the results of successfully completing this exercise by opening Object Projection - Complete.dwg
.