CONSTRUCT COORDSYS CONIC [csyst] defn

  FEMVIEW command only

 

This command is used to define a local conical system for use with RESULTS TRANSFORM LOCAL

csyst = optional name of the local coordinate system

defn = two sets of model coordinates (x, y, z) defining the local origin and local z axis of the system. The angle of the cone is defined by a third set of coordinates or the keyword ANGLE and an angle. OR

= the keyword NODES with two node numbers defining the local origin and local z axis of the system. The angle of the cone is defined by a third node or the keyword ANGLE and an angle.

Each time that a new axis system is created an axis set is drawn at the local origin to indicate the location and orientation of the coordinate system.

When the resulting conical axis system is used with RESULTS LOCAL TRANSFORM the radial (or local x ) direction is normal to the surface of the cone, the local z direction is in the direction of the cone axis projected on to the surface of the cone and the hoop (or local y) direction is normal to the plane defined by the local z and radial directions.

The angle of the cone is constant.

See also the following commands

'RESULTS TRANSFORM LOCAL'
'UTILITY TABULATE '

Examples:

1.

CONSTRUCT COORDSYS CONIC 1.1 1.2 2.1 3.2 2.1 4 ANGLE 45

Creates a conical axis system with the origin at x=1.1, y=1.2 and z=2.1. The local z axis of the conical system is defined by x=3.2, y=2.1 and z=4. The angle of the cone is 45 degrees. A name for the system will be generated automatically.

2.

CONSTRUCT COORDSYS CONIC CONIC1 NODES 1 10 25

Creates a conical axis system called CONIC1 with the origin at node 1, the local z axis defined by node 10 and the angle of the cone defined by node 25.