SRW Elliptical Cylinder Mirror

The elliptical cylinder mirror in Sirepo provides an interface to the SRWLOptMirEl object in the Python interface to SRW in srwlib.py.

The orientation of the mirror may be set by entering the Grazing angle, and then autocomputing the normal vector, either for horizontal or vertical orientation, or the normal vector may be entered directly, by selecting "None" in the Auto-compute Vectors menu.

The outward normal vector determines the parameters _nvx, _nvy, and _nvz, whereas the Central tangential vector determines the parameters _tvx and _tvy.