[cairo] Shouldn't Cairo use/offer degrees rather than radians?

[Andreas Lobinger]

Hello colleagues(s),

i checked, i run a 1.13.1, but 1.14.6 gets me the same result.

btw: if i run this arc through cairo_copy_path and readout the path
data (see example in the API), i get:

moveto[20.0,0.503906]
curveto[20.0,7.16797,10.0,7.16797,10.0,0.503906]

rounding of digits is a side effect, the y coordinates on the moveto
and curveto are the same.