It was not until I started teaching classes on Civil 3D that I fully understood the power of these commands and how they could help me work smarter and not harder.įor example, at one of my past jobs I worked with an older gentleman who was very close to retirement. I know that I did not use them very often in past employment engagements. That got me to wondering how many people actually use the Transparent Commands in Civil 3D. While working on a support call today, I derived a solution for a customer that included using a Transparent Command. Creating user contours can also be beneficial if you are using the stage/storage tool as it will add the elevation into the table when computing the volumes. This will create a polyline from the user contour that we can then list to get the area. In this case we only want the user contours, so we will deselect the other check boxes.
Click on the Icon to initiate the command. On the Surface Tools panel you will see the Extract Objects command. This will open up the contextual surface ribbon. Click on the Modify Tab of the ribbon and then click on Surface. Now, in my opinion, the easiest way to get the area of that contour is to extract a polyline from the surface. You can see in the image above that the user contour is yellow-orange and of a dashed linetype. This should regenerate the surface and show the user-defined contour based on the applied surface style. On the information tab we need to edit the surface style so that the user-defined contour is displayed in the style.Īfter turning on the visibility of the user contours, we can click OK and close the dialog box. When the range is created you may have to manually adjust the elevation for the user-defined contour.Īfter running the analysis and changing the elevation of the contour, go back to the Information tab. On the Surface Analysis tab, change the analysis type to User-Defined Contours, set the number of ranges, or user-defined elevations that you want to create and run the analysis. Open up the Surface Properties and go to the Analysis Tab. Let’s assume that you needed to know the area at a 52.5 elevation.
This surface could represent a pond or ground feature. The first thing to do is create the surface. If you can do a slope or elevation analysis in your surface, you can create User Contours. What if the elevation does not fall on the contour interval? The process is similar, you just have to create a user contour.Ĭreating a User Contour is fairly simple. Extract the contour line from the surface as a polyline and list it. Have you ever created a surface in Civil 3D and wondered how in the world can I calculate the area at a particular elevation? Well, if the elevation falls on the contour interval, that task is rather easy.
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