;+ ;Procedure: rxy_crib.pro ; ;Purpose: A crib showing how to transform data into the RXY coordinate system. This ; coordinate system is a variant of GSM that has the GSM Z axis, but the XY-plane is ; rotated so that the X-axis is on the Earth->Spacecraft line, and more positive values ; are further from the earth. ; ;Notes: ; ; Code heavily based on make_mat_Rxy.pro & transform_gsm_to_rxy.pro by Christine Gabrielse(cgabrielse@ucla.edu) ; ; $LastChangedBy: pcruce $ ; $LastChangedDate: 2013-09-19 10:56:58 -0700 (Thu, 19 Sep 2013) $ ; $LastChangedRevision: 13080 $ ; $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/themis/examples/advanced/thm_crib_rxy.pro $ ;- probe = 'a' timespan,'2008-03-23' thm_load_state,probe=probe,coord='gsm' rxy_matrix_make,'th'+probe+'_state_pos' thm_load_fgm,probe=probe,coord='gsm',level='l2' tvector_rotate,'th'+probe+'_state_pos_rxy_mat','th'+probe+'_fgl_gsm' tplot,['th'+probe+'_fgl_gsm','th'+probe+'_fgl_gsm_rot','th'+probe+'_state_pos'] end