Solid Units
Each model has a basic system of units to ensure all material properties of that model are consistently measured and defined. All models are defined on the basis of the system of units. A part can have only one system of unit.
The following types of quantities govern the definition of units of measurement:
• Basic Quantities—The basic units and dimensions of the system of units. For example, consider the Centimeter GramSecond (CGS) system of unit. The basic quantities for this system of units are:
◦ Length—cm
◦ Mass—g
◦ Force—dyne
◦ Time—sec
◦ Temperature—K
• Derived Quantities—The derived units are those that are derived from the basic quantities. For example, consider the Centimeter Gram Second (CGS) system of unit. The derived quantities for this system of unit are as follows:
◦ Area—cm^2
◦ Volume—cm^3
◦ Velocity—cm/sec
In Creo Object TOOLKIT Java, individual units in the model are represented by the interface pfcUnits.Unit.