Wicked Cool Stuff

Dominick Gallegos, Civil 3D Technical Marketing Manager for Autodesk, shares his unique perspective and ideas on the functionality and use of Civil 3D for a range of different project types.

About DOMINICK

Previous Posts

  • Editing a Surface. . . from a Cross Section View

    Posted 08/17/07 by DOMINICK GALLEGOS

    Many times, we create Corridor models and the top surfaces look amazing. I know when I used to do it using 3D Polylines or even Templates, I would end up with a vertices that were at 0 elevation or just messed up from either my fat fingers or just dumb luck. As most of us know Civil 3D allows us to create top surfaces very easily with a few clicks but what about those complex intersections or funny contours that go astray even though you know your model is correct. Well boys and girls there is a wonderful answer to these types of problems. In the image below, I have introduced a left hand turn lane and we should be seeing two separate contours instead of one that wraps onto the island. In this type of situation a lot of users don't realize that instead of altering the triangles in plan view we can force the top surface to follow our true design intent from a Cross Section View. . . . yes a Cross Section View. When the View/Edit Corridor Section command was introduced, it was a basic viewer so that a user could see what their cross section looked like without having to create cross section but it has evolved into a full-blown editor.

    Originial Surface.png

    As we dig deeper into this little gem of a tool you can see in cross section view the median has ended but the contour has not tapered down to be completely flat, yet. However, by simply drawing a standard Polyline while you are in the View/Edit Corridor Section command we have essentially created a breakline, in Cross Section View.

    editing Xsection.png

    Which means we can quickly add this simple polyline to the top surface as a Standard breakline and tada. . . .

    Adding Breakline.png

    . . . . when we switch back to plan view (or even if you stay in Cross Section View) we now have a great looking surface that truly looks as it should and if you look closely you can see the polyline that was created on the edge of the curb and gutter for the median.

    Finished Surface.png

    Keep in mind that since this works for polylines. . . . try using Points also. Who would have ever thought we can truly edit a surface from a Cross Section View, imagine the possibilities. By the way. . . . I know someone is going to ask. . . no it will not update if the Corridor changes in Elevation but it was easy enough to do the first time, which means it will be even easier to do the second.

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  • The good news and the bad news…

    Posted 08/17/07 by DOMINICK GALLEGOS

    Well, I’ll start with the bad news, because I never like ending anything on a downside. After much deliberation, consideration, and realization, I have decided to step down from the blog and stop my duties as a full time contributor. It should be pretty obvious from the lack of posts in the last two months that my schedule and time aren’t as free as I thought they would be in my new role. In the end, I just don’t have the bandwidth to commit to adding the value needed to make it not only worth my time, but more importantly, worth the time of my readers.
    As for the good news; this blog will continue. I’m handing over the reins for the primary authorship to Dominick Gallegos, the new Technical Marketing manager at Autodesk. Many of you are already familiar with Dominick from his own Civil 3D blog that he had before coming on board with the team. I’m very happy that Dominick will continue his involvement in the community, and very pleased that he has chosen to do so with Wicked Cool Stuff. So please join me in giving Dominick a warm welcome and we hope to continue to have you back for more great information and tips and tricks on Civil 3D.
    PS – As noted with the last several posts, Nick is still involved as a guest author, and will continue so as long as he can put up with Dominick’s little tricks. 
    Signing off for now, but perhaps not forever,
    Da Govna

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