What coordinate system does Juce use? I am used to Cartesian which I thought was standard, so I think either Juce doesn't use Cartesian, or I put the pieces together wrong. I am specifically looking at the Path.addCenteredArc() method. I understand that any coordinate system works, but it is confusing to me to think in terms of the Juce coordinates.

I think Juce starts with 0 at the top and Pi/2 to the right (clockwise). which seems strange to me. If thats correct why? (does England teach math using a different coordinate system than the US does? )

Either Juce doesn't use Cartesian, or It is because windows doesn't or both.

**I would like to do all of my calculations in Cartesian, and use a View matrix to translate when drawing to the OS's Window.**

Cartesian is 0 angle to the right and counter clockwise which means the sign in each quadrant is (x, y):

-+ ++

-- +-

Windows uses:

-- +-

-+ ++

I think Juce uses(which appears to be Cartesian for X and Y, but the direction of Angles seems reversed.)

-+ ++

-- +-

If I create my Path using Cartesian, and do all of my calculations, I can create a matrix(AffineTransform) to convert it to Windows when I draw using Graphics.strokePath(), but then what happens when I compile on one of the other operating systems.

I am hoping that Juce is already aware of the coordinate system it is running on and I can just use an AffineTransform to convert from Cartesian to whatever Juce uses (unless Juce is already Cartesian) and it will apply a transform for each operating system.

Kismet