| T2049 | WARNING: T2049 | INTERIOR GRID id IS EXTERNAL TO INTERPOLATION ELEMENT |
| Cause: | The specified RSPLINE element is not valid because the Gi Ci pairs are out of order. The order of the pairs should be specified in the same order that they appear along the line that joins the two regions. If this order is not followed, then the RSPLINE will have folds in it that may yield some unexpected interpolation results. | |
| Action: | Correct the Gi Ci pair ordering. | |
| Remarks: | See Autodesk Nastran Reference Guide, Section 4, Bulk Data, for entry format. |