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Phi Inversion? [message #1138] Mon, 24 September 2007 10:40
Messages: 2
Registered: March 2006
Location: University of Colorado
I'm running slic using a macro.

# isometric angular distribution
/gps/ang/type iso

# phi range
/gps/ang/minphi 90 deg
/gps/ang/maxphi 91.5 deg

I get momentum vectors that look like this:

Direction: (0.0136482,-0.999903,-0.00282306)

Which seems to me like -90 degrees, since a macro file with this command:

/gps/direction 0 1 0

Produces this momentum vector:

Direction: (0,1,0)

I realize this is a fairly arbitrary issue about how you define your coordinate system, but I was wondering if perhaps there was some standard coordinate system I didn't know about, or if this was just a bug.

Jack Gill
University of Colorado
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