May 2010


If there happens to be any US military veterans or active duty folks that read my blog, I want to take this time to say a quick thank you to all of you. Just recently my grandfather passed away. He was a veteran of the US Army Air Corp during World War II. It was the first time I had ever been to a military funeral and I have to admit, it was very moving, especially when the honor guard fired their rifles and then Taps was played.

Driving through Leavenworth National Cemetery will leave any patriotic American moved to see all the graves of those that have served our country. So, please, on this Memorial Day Weekend, take a moment and say a prayer for our troops, take a moment of silence, or do something to honor those that have given their lives so that we can live the way we do.

Civil 3D is used around the globe but I only use it here in Colorado. The coordinate systems in Colorado, and almost all surveying around here, uses the US Survey foot, not the International foot. If you aren’t aware of the difference, one US Survey Foot is 1200/3937 meters whereas the International Foot is 0.3048 meters. The difference between the two definitions of the foot is only 2 parts per million. In other words, 1,000,000 International Feet is equal to 999,998 US Survey Foot. Now, in most situations, it’s irrelevant but, when you are surveying in state plane coordinate systems, it is important to know which one to use. If you accidentally use International Feet instead of US Survey Feet, you can be off by a considerable distance.

So, all this rambling brings me to the point of this post, when you create a survey database in Civil 3D, it has to set units of some sort and, since it is an “international” program, I guess the developers decided to use “international feet” as the default imperial unit. Now, in Colorado, we use the Survey Foot and I don’t want to have to go and change this setting every time I create a new database because, if I forget, that could be a very bad thing. What I’m going to demo is not just for units but can be used for all the different settings in the database.

The first thing you have to do is create a survey database and set all the settings the way you want them. These settings will be what we are going to use in the next step.

Survey Database Settings

In this example, the only change I’ve made is to set the units to US Survey Foot. Once I have all the settings correct, I export the settings out to an external file. This file can be in a shared network location for all users to have access to if you want. To export the settings, there is a button at the top of the database settings dialog box to export them. If you have projects that use different settings then the default but they are consistently different, you can also import specific settings using the import settings button just to the right of the export button.

Export Survey Database Settings

Now that we have all the settings saved to a file, we need to tell Civil 3D to use these settings the next time we create a survey database. This is done through the Survey User Settings. These settings are found at the top of the survey tab on the prospector. In the user settings, you can specify the file you just saved as the default settings for the next time you create a database.

Survey User Settings

Now the next time you create a survey database, all your settings will be preset for you and you can get straight to work. Hope this helps!

Tomorrow I’m doing a presentation and I was hoping to show off some of my Civil 3D drawing in Navis Works. Open the drawing in Navis Works, and all I get are boxes. Oh yeah! I need the object enabler! Go download it, and it’s not available. Call tech support, just to make sure I wasn’t missing something, and they say, “It’ll be available, with the magic word behind it, ‘soon'”.

This afternoon, I get a follow up message from tech support, “I hope you don’t mind, but it’s available today”. Looks like I asked a couple hours too soon!

If you need it, go get it! http://www.tinyurl.com/C3D2011OE

In the Denver Area? CAD-1 (the reseller I work for) will be hosting a Seize the Opportunity Event on Wednesday, May 12th.

Come see the latest Autodesk 2011 software in action.  You’ll see how Autodesk 2011 software can help you design, visualize and simulate ideas in the digital world – before they’re in the real one.  With faster speed, greater power and more flexibility than ever before.  Catered lunch from Brother’s BBQ is included, free of charge!

Oh yeah, Brother’s BBQ. That’s some good stuff right there. But best of all, you’ll actually get to listen to me talk! If you do stop by, make sure you say hi to me and let me know what you think of my blog. Perhaps I’ll even give out a prize* to the first person at the event that says they saw this!

For more information or to register, follow the link HERE.

*This offer is not guaranteed, non-transferable, and the offerer does not warrant in any fashion the suitability of the said possible prize to be waterproof.

So, the other day, I was reading one of the discussion groups when I saw a post asking if a vertical curve could be created at the start of the profile without having to have a tiny little piece of tangent at the beginning. Someone responded back that you couldn’t do this and you had to have a little tangent piece between them. That seems to be a very common misconception about vertical curves. Read on to find out how to do this. (more…)