plgdiori: Get plot orientation

plgdiori (p_rot);

Get plot orientation parameter which is multiplied by 90 to obtain the angle of rotation. Note, arbitrary rotation parameters such as 0.2 (corresponding to 18) are possible, but the usual values for the rotation parameter are 0., 1., 2., and 3. corresponding to 0 (landscape mode), 90 (portrait mode), 180 (seascape mode), and 270 (upside-down mode). If plsdiori has not been called the default value pointed to by p_rot will be 0.

p_rot (PLFLT *, output)

Pointer to orientation parameter.

Redacted form: plgdiori(p_rot)

This function is not used in any examples.