Adding Arcs to GCodeCNCDEMO, Atan3 not recognised

[Anonymous]

Hi.
I’ve successfully completed my X,Y compound table controlled by GcodeCNCDEMO and am now trying to impliment the ARCS routines to recognise the GCodes G02 amd G03.

https://www.marginallyclever.com/blog/2014/03/how-to-improve-the-2-axis-cnc-gcode-interpreter-to-understand-arcs/

However when i compile the code i get an error saying error: ‘atan3’ was not declared in this scope. I guess i’m missing an Library but can’t seem to find whats missing.

I’m using an ARDUINO UNO (rev3) and ADAFRUIT Motor Shield (Ver2.3)

The Includes i have are:
#if MOTOR_SHIELD_VERSION == 2

#include
#include
#include “utility/Adafruit_PWMServoDriver.h”

#endif

Any help appreciated.

Ray.

[Anonymous]

Oops, problem solved.
After looking at the Makelangeo code ‘firmware_ams’ i realised i had:

// returns angle of dy/dx as a value from 0…2PI
static float atan3(float dy,float dx) {
float a=atan2(dy,dx);
if(a<0) a=(PI*2.0)+a;
return a;
}

missing.
Back to testing.
Ray.

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