PROCEDURE: thm_part_getanbins PURPOSE: Create 3 arrays used by THM_PART_MOMENTS2 to turn on/off energy/angle bins Generates a [number of energy channels]x[number of angle bins] array (en_an_bins), an array [number of angle bins]x1 array (an_bins), and an array [number of energy channels]x1 array (en_bins) of 1's and 0's used by THM_PART_MOMENTS2 to turn on/off energy and angle bins based on the theta/phi/pitch angles, energy ranges, and data types requested by the user in THM_PART_GETSPEC. THM_PART_MOMENTS2 will also call this function if there's a mode change since modes have different angle maps. NOTE: pitch angles not yet implemented KEYWORDS: phi = Angle range of interest (2 element array) in degrees relative to probe-sun direction in the probe's spin plane. Specify angles in ascending order (e.g. [270, 450]) to specify the 'daylight' hemisphere in DSL coordinates. Default is all (e.g. [0, 360]). theta = Angle range of interest (2 element array) in degrees relative to spin plane, e.g. [-90, 0] or [-45, 45] in the probe's spin plane. Specify in acending order. Default is all (e.g. [-90, 90]). pitch = NOT IMPLEMENTED YET Angle range of interest (2 element array) in degrees relative to the magnetic field. Default is all (e.g. [0, 180]). erange= Energy range (in eV) of interest (2 element array). Default is all. data_type = The type of data to be loaded. Energy/angle bins are now derived from dat structure in THM_PART_MOMENTS2. SEE ALSO: THM_PART_MOMENTS2, THM_PART_GETSPEC, THM_CRIB_PART_GETSPEC CREATED BY: Bryan Kerr HISTORY: v0.1 11/21/07: Initial release. v0.2 11/28/07: Added ability to handle eESA and *SST data types. v0.3 12/04/07: Improved ability to better handle phi input from THM_PART_GETSPEC. v0.4 12/13/07: Added check and warning if no energy bins fall within ERANGE. v0.6 01/09/08: Added reduced mode (peir) capability. v0.6.01 01/09/08: Corrected peir phi bin map v0.6.3 01/15/08: All reduced modes implemented. Generalized to arbitrary angle maps and energy ranges. v0.7 01/31/08: Added en_bins reference v0.8.12 02/26/08: Fixed bug that fails to properly handle cases when no phi bins occur within PHI range. v1.0 05/09/08: Ready for Release v4.0. VERSION: 1.0 $LastChangedBy: aaflores $ $LastChangedDate: 2012-02-13 09:59:58 -0800 (Mon, 13 Feb 2012) $ $LastChangedRevision: 9719 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/themis/spacecraft/particles/thm_part_getanbins.pro $