LONGLIB is very powerful graphics package for line-graphics. Unfortunately, the desire to maintain compatibility with earilier LONGLIB versions has resulted in less than optimal design decisions. There are, however, some incompatibilities with earlier versions of LONGLIB; notably the color array used in AXIS, AXIS2, and AXIS, the working space specifications of PLT3D and NXTVU, and metafile internal format which results in the fact that previous metafile processing programs will not work with new metafiles and vice versa.
LONGLIB was developed in the VAX VMS environment. With the possible exception of the Ramtek package routines, every attempt has been to keep LONGLIB FORTRAN-77 compatible and machine independent with the exceptions previously noted. No claim is made regarding the transportability of LONGLIB to non-VAX machines. It is felt, however, that only small modifications would be needed.
As with any software system, there may be bugs in either the documentation or software though every attempt to eliminate them has been made.