Re: Why does performer use degrees?

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John Rohlf (jrohlf++at++tubes)
Tue, 8 Nov 94 14:31:35 PST

>
>
> Hello all,
>
> Does anyone know why it is that angles are expressed
> in degrees, as opposed to radians, in Performer apps?

        Degrees are more human-friendly than radians.
>
> While I'm on this issue, why is it that colors are
> sometimes expressed in the 0-255 range and other
> times normalized from 0 to 1?

        All Performer colors should be floats in the range 0-1.
If you have any specific Performer API in mind which violates this,
let me know. I couldn't find any in a cursory search.

> The man pages are
> not always explicit as to which range a particular
> Performer color is to be expressed in either.

        If it's a float, it's 0-1. If it's a char, it's 0-255.

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