Source code needed!

[GaryM]

Does anyone know where I can find the source code that would print out the g-code for an arc? The g-code would look something like this, "N30 G2 X115 Y113.3 I-43 J25.52". Maybe someone know's the math behind this. My little bitty brain just can't quit get a grasp on it. Any help would be very much appreciated.

Gary

[ger21]

If you know the start pint, endpoint, and radius of the arc, you should be able to google to find the math. You'll also need to know if it's CW or CCW.

[ger21]

Actually, if you know the startpoint, endpoint, and radius, the only math you would need is to find the center.

[GaryM]

That's what I need. The user would put in the startpoint, endpoint, and radius. Then the algorithym would find the center. Correct?

Gary

[JFettig]

do you have a drawing in say autocad? you can dimention off of the arc.


Jon

[ger21]

This should get you in the right direction. http://mathforum.org/dr.math/faq/faq...e.segment.html

[GaryM]

Jon,

The only cad program I have is Turbocad!
Gerry I will check that out, thank you.

Gary

[MetLHead]

Gary,

A while back I posted some Visual Basic source code in the Coding forum. You didn't say what programming language you were looking for, but hopefully you can decipher what you need from it. It includes a function for calculating the arc center from start, end and radius.

Open source geometry stuff

Regards,
Scott

[GaryM]

MetLHead,

Thanks, that's what I have been looking for.

Gary

[widgitmaster]

http://www.datawise.net/~jorenr/cnc/circleprogram.htm

[GaryM]

widgitmaster,

Thanks for the link. I am trying to figure out how to use MetlHead's Geometry module to use in a program I am trying to write. I ain't figured it out yet but I'm trying. Must be nice not to be so darn dumb.

Gary

[widgitmaster]

The best experience is what you learn from major screw ups!

Eric