Coordinate Frames

CUBIT allows the user to define coordinate systems (frames) that are written to a mesh file. These coordinate frames are generally used as reference coordinate systems during analysis. In CUBIT, the user may define multiple exodus coordinate frames. When created, a coordinate frame is assigned an id. Coordinate frames can be created using x-y-z coordinates, nodes or vertices with the following commands:

Create Coordinate Frame
<xval> <yval> <zval>//origin
<xval> <yval> <zval> //z-axis
<xval> <yval> <zval> //xz-plane
[tag { 'R' | 'C' | 'S' } ]

Create Coordinate Frame Node
<node_origin_id>
<node_zaxis_id>
<node_xzplane_id>
[tag { 'R' | 'C' | 'S' } ]

Create Coordinate Frame Vertex
<vertex_origin_id>
<vertex_zaxis_id>
<vertex_xzplane_id>
[tag { 'R' | 'C' | 'S' } ]

Using the 'tag' option specifies the type of coordinate frame, i.e., rectangular (R), cylindrical (C) or spherical (S). The default coordinate frame type is rectangular. Exodus coordinate frames may also be listed and deleted using the commands below:

List Coordinate Frame [ids] [ <frame_id>]

Delete Coordinate Frame [ids] [ <frame_id>| all]

Any coordinate frames that exist at the time the exodus file is exported will be written out in the exodus file.

These coordinate frames can also be referenced when exporting an Abaqus file.