Introduction

GRIP (Graphics Interactive Programming) is NX's original macro/automation language. It uses an English-like vocabulary similar in style to interpretive BASIC or FORTRAN. Nearly anything doable interactively in NX can be scripted with GRIP: creating geometric and drafting objects, controlling system parameters, performing file management, and modifying existing geometry.

Guide roadmap (mirrors the book's own chapter list):

• Developing & Executing Programs — how to write, compile/interpret, and run GRIP programs.
• Language & Conventions and Declarations & Functions — core language syntax/grammar.
• Statement reference chapters: Dimension Creation, Drafting, Features, File Management, Point and Curve Creation, Programming, Sheet Body Creation, System Control.
• Symbol reference: Global Parameter Access Symbols (GPA) and Entity Data Access Symbols (EDA) — symbols that modify/query GRIP statements.
• User Exits and Errors — debugging and error handling.
• Word & Symbol Lists — lookup if you can't find a major/minor word or symbol elsewhere.
• Appendix-style summary/index chapters: Statement Format Summary, GPA Symbol Format Summary, EDA Symbol Format Summary, Object Types, ASCII Conversion Table.

Note: the maximum size of a GRIP program can vary depending on the memory and swap size available on the machine doing the compiling and linking.