Creo Simulate > Getting Started with Creo Simulate > Planning and Modeling Considerations > Using Effective Modeling Techniques > Using Coordinate Systems
Using Coordinate Systems
Many modeling entities reference coordinate systems, either implicitly or explicitly. Reference coordinate systems are used to determine such functions as the direction of a load, the placement of a load, the orientation of a material, and so forth.
When you start your Creo Simulate session, the software adds a default coordinate system to your model. This coordinate system is known as the World Coordinate System (WCS). The WCS is a Cartesian coordinate system with an origin at 0 0 0. At the time that it comes up, the WCS is defined as the current coordinate system and the WCS is the coordinate system used when creating modeling entities.
If you want to apply your modeling entities relative to a different coordinate system, you can set that coordinate system as current by clicking Home > Set Up > Current Coordinate System. Making a coordinate system current means that Creo Simulate will base the creation of certain modeling entities on that coordinate system.
To create a new coordinate system click Refine Model > Coordinate System command. You can define coordinate systems you create in Creo Simulate as Cartesian, cylindrical, or spherical, enabling a more flexible and accurate realization of mechanical behavior. For example, cylindrical coordinate systems can be handy when defining cyclic symmetry constraints.
* If you select a 2D model type, you must choose a Cartesian coordinate system that you want Creo Simulate to use as the reference coordinate system.
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