Last week, I talked about what True North and Project North is. This week, I am going to walk you through how to setup True North for a Project.
UPDATE: This tutorial is intended for projects that do not have the site model yet, but want to show the plan at a True North orientation in some Views. DO NOT use this method if you already have a site plan model in your project. Please visit my other post for detail explanation – Setting up True North for a Project – Best Practice.
I will talk about linking model in another post. Let’s get back to this simple tutorial. First you need to know where True North (North in the Real World) is in your model, this will determine the orientation of your model on the Site Plan. You can acquire this information from the civil or survey file. With that, you can figure out the degree angle* your model needs to rotate.
For the purpose of this exercise, I have created a simple model and draw a big North arrow (pointing True North) next to it to make it easy to understand. Keep in mind the current view is set to “Project North”.
Locate the Project Base Point
With the First Level Plan opened. Go to Visibility/Graphics Overrides (VG). In the Model Categories > Site > CHECK “Project Base Point”.
A blue icon will now appear on your plan. This is the Project Base Point in your model. The Project Base Point is the origin (0,0,0) coordinates. This is similar to the AutoCAD origin (0,0,0). Select the blue icon, noted the Angle to True North reads “0 degree”. In Properties, enter the degree angle. In our case, it is -30 degree*. Once again, always acquire the degree angle from your civil or survey file!
The “Angle to True North” should read the degree you entered just now (360-30 in our example), but you should see NO change to your plan.
Now go to the Site Plan view, this is where the magic happens. To switch the view to show True North, go to Properties > Orientation, and select “True North”.
You will see the building model immediately rotated with the North arrow pointing straight up in this view. By switching between Project North and True North, Revit is only rotating your view, but not physically rotating your model. If you open up the First Floor Plan, the plan still remains nice and straight as before.
If True North is on the right side of your model, enter a negative degree number. If True North is on the left side of your model, enter a positive degree number.