True North can be set via Options/Project Preferences/ Project Location…

This can be the exact value coming from the surveyor and no issues of calculation accuracy. Requires calculation or reference from surveyor’s CAD (DWG) file.ĭisplay the PBP, select it and enter the UTM values (Northing and Easting). UTM value will be exported as coordinates of the origin by placing a SP object. Revit uses Lat and Long for simulation purpose. It is approximate as there is no input option for exact value. Lat and Long can be set via Manage/ Project Location/ Location. Lat and Long can be entered via Options /Project Preferences/ Project Location… Note: Archicad’s SP is not equal to Revit’s SP. User can enter any coordinate value (UTM value) from the real world coordinate system. These are flexible reference points that can be moved anytime during the project. The origin is fixed, there is an option to set Lat and Long from Project Location dialog and an option to set the Northing and Easting by placing a Survey Point (SP) object.Ĭoordinate sytem uses survey point (SP) and project base point (PBP). Note: This article is written based on Archicad 21īefore going into how to do the settings we need to understand how both tools work and various coordinate systems available for us to use.Ĭoordinate system is similar to traditional CAD system which is required for CAD (DWG/DGN) exchange.

Archicad 21 bim objects