Links

Layout converters:

• Artwork Conversion Software
• LinkCAD
• Whiteley Research

File format descriptions:

• Caltech Intermediate Format (CIF)
• Caltech Intermediate Format (CIF) by Steven M. Rubin
• Calma GDS-II Format by Steven M. Rubin
• GDS-II description by Klaas Holwerda
• Oasis File Format Draft Specification
• AutoCAD 2012 DXF Reference
• A First Guide to PostScript
• The Gerber File Format Specification

Software development:

• TMS software components Especially CleWin 5 could not have existed without these excellent components
• Boolean Up to version 5 of CleWin the polygon operations were based on this algorithm by Klaas Holwerda
• Clipper2 In version 6 of CleWin the Clipper2 library was added in addition to the Boolean library