CIS: CIS/2 Interoperability Library

Ver. 3.1.02 2020/03/05 Corrected rotation import/export for several section classes.

Ver. 3.1.01 2020/02/25 Element rotations are now imported from the STEP file. Material properties now imported from the STEP file.

Ver. 3.1.00 2020/02/18 Corrected the export of area units to the STEP file.

Ver. 2.6.01 2013/12/10 Produced a slightly malformed Frame Analysis data file, corrected.

Ver. 2.6.00 2013/12/02 First release.