+(+) It identifies a program label by matching a :, a$ or the Letter O. The first match expression that matches programs looks like this. Regular Expressions helped me get the time down from "Go get a coffee" to about 10 seconds on my 97,000-line dataset. This helps us get the best performance if the match expression does not change very often.īecause it's not unusual for some CNC programs to exceed 100,000 lines of code, performance is important. NET implementation of Regular Expressions also has an option to be compiled. Regular expressions seemed perfect for the job of breaking the file into programs, breaking the programs into blocks and then finally breaking the blocks into individual words. These procedures or "sub programs" have a specific beginning and end label. They are commonly used for a set of hole locations that will be used for a number of tools. CNC programs can have callable procedures as well. Each line has a number of words that begin with a letter and is always followed by a number. It's a plain ASCII text file made up of lines or "blocks" as they are sometimes called. Combination of a back-buffer and real-time drawing was the answer. Tool filtering to hide and show specific tools.A nimble display list is created with a geometry transformation. These were my requirements for this project. It's part of a larger project that I am currently rewriting in VB.NET 2005. It ended up being an exercise in GDI+ and a total rewrite of the parser using Regular Expressions.
Cnc file viewer online upgrade#
My big plan was to simply use the Upgrade Wizard on an old CNC viewer program that I had written in VB6 and then "Give it away give it away give it away now" when I was finished.
Cnc file viewer online code#
A CNC Programmer would use this type of program to verify code ( G-code) before sending it to a machine to cut a part. Wikipedia has information on CNC if you are not familiar with it. This plain text code is used by machine tools to cut metal and other materials.
This program will process and graphically display CNC code.
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