The position of a FRED entity can be set to any location and any rotation using the location primitives. In addition, each Location Primitive’s operation, i.e. linear transformation, can be made relative to the global coordinate system or the coordinate system of any defined FRED entity (Surface, Curve, Custom Element, Element, or Sub-Assembly). The coordinate system of the Location Primitive is called the Parent coordinate system.
NOTE: The Location Primitives operate relative to the origin of the Parent coordinate system, which is not always the center of the object. If uncertain of where the origin of a coordinate system is, make the Coordinate Axes for that system visible by right mouse clicking on the entity in the object tree and selecting "Coordinate axes" from the list menu.
This feature can be accessed in the following ways: •In a surface dialog select the Location / Orientation tab •Right mouse click on the entity of interest in the object tree and select "Position/Orientation" from the list menu
The Reference Coordinate System can be selected using the entity picker. All valid coordinate systems will be available for selection.
The Reference Coordinate System can also be entered by directly specifying a node number. The entry must be enclosed in square brackets, ex. [13].
Linear transformations can be modified by right mouse clicking in the list spreadsheet and selecting an appropriate action from the list menu (i.e. Insert, Append, Delete). See Positioning Objects for more details.
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