2013-01-24  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-466

            * src/m_transmitter.cc (iyRadioLink): Added impact parameter as
            aux variable.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8139 aaf1aab0-4228-0410-ad68-8dceda47f409
2013-01-25  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-467

            * src/m_ppath.cc (ppathFromRtePos2V2): Trying to make a better
            version of the method. Not yet reached the critical part.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8142 aaf1aab0-4228-0410-ad68-8dceda47f409
2013-01-25  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-468

            * src/lin_alg.cc (linreg): Created. 



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8144 aaf1aab0-4228-0410-ad68-8dceda47f409
2013-01-27  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-468

            * src/m_ppath.cc (ppathFromRtePos2V2): Work in progress ...

            * controlfiles/artscomponents/doit/TestDOIT.arts: Adopted call of
            doit_i_fieldUpdateSeq1D.

            * controlfiles/artscomponents/radiolink/TestRadioLink2.arts:
            Adopted call of iyRadioLink.

            * controlfiles/general/general.arts: ppath_lraytarce now set (to 1
            km).

            * src/rte.cc (defocusing_general_sub, defocusing_general)
            (defocusing_sat2sat):
            * src/m_montecarlo.cc (MCGeneral):
            * src/montecarlo.cc (mcPathTraceGeneral):
            * src/m_transmitter.cc (iyRadioLink, iyTransmissionStandard):
            * src/m_rte.cc (iyEmissionStandard, iyMC):
            * src/m_doit.cc (doit_i_fieldUpdate1D, doit_i_fieldUpdateSeq1D)
            (doit_i_fieldUpdateSeq3D):
            * src/m_cloudradar.cc (iyCloudRadar):
            * src/doit.cc (cloud_ppath_update1D, cloud_ppath_update1D_noseq)
            (cloud_ppath_update3D):
            * src/m_ppath.cc:
            * src/ppath.cc (ppath_calc): Adopted calls of ppath_agenda
            and ppath_step agenda. Had to add ppath_lraytrace as input to most
            of the functions.

            * src/agendas.cc: Added ppath_lraytrace as input to ppath_agenda
            and ppath_step agenda, to allow algorithms to adjust this
            variable.

            * src/lin_alg.cc (linreg): Made a bit more robust regarding
            numerical problems, by instead making fit for x' = (x-mean(x)).

            * src/m_transmitter.cc (iyRadioLink): Impact parameter now set
              through
              ppath.constant. Now also handling the case of surface
              intersections (iy retiunred as 0 and iy_aux empty).

              * doc/uguide/ppath.tex: Improved description of ppath.constant,
              and fixed dead section reference.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8145 aaf1aab0-4228-0410-ad68-8dceda47f409