The following list of attributes drives the Cart3D geometric definition.

Body level attributes

• capsAIM This attribute is a CAPS requirement to indicate the analysis the geometry representation supports.
• capsReferenceArea This attribute may exist on any Body. Its value will be used as the Reference_Area entry in the Cart3D input.
• capsReferenceChord This attribute may exist on any Body. Its value will be used as the Reference_Length entry in the Cart3D input.
• capsReferenceX This attribute may exist on any Body. Its value will be used in the Moment_Point entry in the Cart3D input.
• capsReferenceY [Optional: Default 0.0] This attribute may exist on any Body. Its value will be used in the Moment_Point entry in the Cart3D input.
• capsReferenceZ [Optional: Default 0.0] This attribute may exist on any Body. Its value will be used in the Moment_Point entry in the Cart3D input.
• cart3d_BBox [Optional] This attribute may exist on any Body. If present, the bounding box of the body is used to define a BBox region in the preSpec.c3d.cntl file (the body it self is ignored). The BBox refinement level is given by the cart3d_BBox value. Note: This will replace the preSpec.c3d.cntl file generated by autoInputs.
• cart3d_Sensor [Optional] This attribute may exist on any Line Wire or Node Body. Indicates the body is used to construct a Line or Point sensor. The string value of the attribute is the name of the sensor.
  Note: The sensor name must be unique from all other Sensor names and capsGroup names.
  • cart3d_EqArea [Optional] Additional attribute to convert a line sensor to an equivalent area. The value is the radius.

Face level attributes

• capsGroup The capsGroup attribute defines the geometric components. The loads for each component are available as Dynamic Outputs.