When you create a project in Revit Architecture, Revit Structure and Revit MEP, specify the project location on the globe using the nearest major city or the latitude and longitude. This project-wide setting is useful for generating location-specific shadows for views that use them, such as solar studies, walkthroughs, and rendered images.
You can also rotate a view to reflect True North (instead of Project North, which is the top of the view). This procedure ensures that natural light falls on the correct side of the building model to produce realistic shadows for solar studies, walkthroughs, and rendered images.
True North and Project North start off the same (pointing straight up). To establish the direction of True North, duplicate one of your floor plans (typically your site plan) and name it appropriately.
Edit the View Properties of the duplicated view and change the Orientation to True North.
Close the dialog and then on the Manage tab> Project Location Panel, click the Position drop-down>choose Rotate True North.
This command works like the normal rotate command. Simply click points on screen to indicate the appropriate rotation or type in the direction on the options bar.
Once you have established the rotation variation between True and Project North, you can see the angle in the Manage Place and Locations dialog from the Manage tab>Project Location tab>Location tool.
If you click the Place tab in this dialog, you can choose your geographic location from the City list. You also can change any plan view from Project to True North and vice-versa and the orientation of geometry shown in the view will change accordingly.
Enable shadows on the View Control bar to see accurate shadows for your location and date and time.
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