2013-02-07  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-494

            * controlfiles/artscomponents/faraday/test_faraday.m: A small file
            for further testing of the obtained rotation. The result was found
            to deviate with less than 0.002 deg to the calculation done in
            this file.

            * controlfiles/artscomponents/faraday/TestFaradayRotation.arts:
            Sharpened the compare accuracy for the rotation part.

            * controlfiles/artscomponents/radiolink/TestRadioOccultation.arts:
            Revised, comparsion added, and included as a slow check.

            * controlfiles/artscomponents/radiolink/TestRadioLink2.arts:
            * controlfiles/artscomponents/radiolink/TestRadioLink.arts:
            Changed settings somewhat and activated comparison to references.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8182 aaf1aab0-4228-0410-ad68-8dceda47f409
2013-02-07  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-495

            * controlfiles/artscomponents/radiolink/TestRadioOccultation.arts:
            Changed as cfile below.

            * controlfiles/artscomponents/radiolink/TestRadioLink.arts: Last
            commit gave error for this test, on Hudson. I also tried three
            different platform/compiler combinations and got three different
            results! (though one looked to match Hudson). My only conclusion
            is that compiler differences give slightly different link paths,
            which cause significant errors for the estimation of defocusing.
            The bending angle sensitivity to the compiler differences seems to
            be below 1e-4 deg, but this is not sufficient!

            Now changed to a shorter ray tracing length. And using second
            defocus method (that appears to be more stable). Relative
            difference for defocus between compilers seems to be about 0.5%
            with these settings. High to be just a compiler issue, but OK.

            * src/methods.cc (iyRadioLink): Changed default for defocus_shift
            to 1e-3. Old value too low considering the problems discussed
            above.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8183 aaf1aab0-4228-0410-ad68-8dceda47f409