LATS available for GrADS v2.0

Arlindo da Silva dasilva at ALUM.MIT.EDU
Sat Oct 31 21:24:51 EDT 2009


All,

    I just upload to sf.net version *2.0.a7.oga.3 *of the *OpenGrADS
Bundle*. This
OpenGrADS release adds support for *LATS*, a feature of GrADS v1.x which has
been dropped from COLA's GrADS v2.0 codebase. LATS is now implemented as an
OpenGrADS extension (see http://opengrads.org/doc/udxt/lats/) giving users
the ability to write NetCDF-3, NetCDF-4/HDF-5 (with and without
compression), HDF-4 and GRIB-1 from a single GrADS executable. With the LATS
extension, Lats4D <http://opengrads.org/wiki/index.php?title=Lats4D> has the
same capabilities in GrADS v2.0 as it once did in GrADS v1.x.

       This release also adds the extension *ORB* (see
http://opengrads.org/doc/udxt/orb/) which allows you to mask gridded
variables according to several satellite orbits.

      *NOTE:* Unless you are interested in these new extensions, there is no
reason to upgrade from v2.0.a7.oga.2.

For downloading,

*Linux, Mac OS X, sources:*


http://sourceforge.net/projects/opengrads/files/grads2-windows/2.0.a7.oga.3/

*Windows:*


http://sourceforge.net/projects/opengrads/files/grads2-windows/2.0.a7.oga.3/


  The NEWS file is reproduced below. Remember, these extensions should be
considered experimental. Use at your own risk.

  Enjoy and let me know of any problems.

      Arlindo



                    The OpenGrADS Bundle Distribution
                    ---------------------------------

                          http://opengrads.org

                        GrADS Version 2.0.a7.oga.3
                         Released 29 October 2009

This version is based on COLA's 2.0.a7 release which includes a new
interface for the native HDF-5 format, options for templating on Julian Day
and time axis, new funtion eloop, in addition to some bug fixes. See
the ChangeLog for details.

This OpenGrADS release adds support for LATS, a feature of GrADS v1.x
which has been dropped from COLA's GrADS v2.0 codebase. LATS is now
implemented as an OpenGrADS extention giving users the ability to
write NetCDF-3, NetCDF-4/HDF-5 (with and without compression), HDF-4
and GRIB-1 from a single GrADS executable. This release also adds the
extension ORB which allows you to mask gridded variables according to
several satellite orbits. See the included "Documentation.html" for an
in-depth description of these new extensions.

Several other important OpenGrADS additions are available with this version:

- grads is now built with NetCDF v4.0.1beta3 which includes support
  for NetCDF-4/HDF-5 (similar to gradsnc4 in v1.9.0-rc1) and has
  built in OPeNDAP support.

- gradsdap is no longer provided as its functionality is now included
  in the single executable *grads*.

- this is an OpenGrADS Bundle release, a relocatable, minimum
  configuration package that has all that you need to run GrADS. See
  INSTALL for additonal information.

- we have introduced option -C to enable colorized text

- preview release of the OpenGrADS Extensions; the same extensions
  available in GrADS v1.9.0-rc1 are now available with GrADS v2.0.

  Caveat: as COLA is yet to publish the official API for User Defined
          functions in GrADS v2.0 we have adopted here an API that
          is based on our work vith v1.9.0-rc1. This is a very low-level
          API that is *not* endorsed by COLA. As such, it is *not*
advisable
          that users adopt this API to write their own extensions.

- These extensions are still being fully tested. Please report any problems
  you encounter. Use them at your own risk.

- The following extensions are included: see below.


Documentation and Additional Information
----------------------------------------

Consult
           OpenGrADS Website: http://opengrads.org
               GrADS Website: http://grads.iges.org/grads

                      ---------------------
                      User Defined Commands
                      ---------------------


   Command            Environment Variables               Function at Library
 ----------- ---------------------------------------
 --------------------------
 printenv    Expand environment variables             c_xenv@^env.gex
 runenv      Expand env vars and run command          c_env@^env.gex
 @           Expand env vars and run command          c_env@^env.gex
 getenv      Get value of environment variable        c_getenv@^env.gex
 setenv      Set value of environment variable        c_setenv@^env.gex

   Command           GxYAT: Image Generation              Function at Library
 ----------- ---------------------------------------
 --------------------------
 gxyat       Save images in PNG/SVG/PDF/PS            c_gxyat@^gxyat.gex
 set_rgba    Set color red/green/blue/alpha           c_rgba@^gxyat.gex

   Command           Simple Extension Example             Function at Library
 ----------- ---------------------------------------
 --------------------------
 hello       Hello, World! sample command             c_hello@^libhello.gex

   Command          Interprocess Communication            Function at Library
 ----------- ---------------------------------------
 --------------------------
 ipc_verb    IPC verbose toggle                       c_Verb@^libipc.gex
 ipc_open    Open stream for save/load                c_Open@^libipc.gex
 ipc_close   Close stream                             c_Close@^libipc.gex
 ipc_save    Save expression to stream                c_Save@^libipc.gex
 ipc_define  Define variable (obsolete)               c_Define@^libipc.gex
 ipc_error   Print IPC error message                  c_Error@^libipc.gex

   Command    LATS: File Reformatting and Subsetting      Function at Library
 ----------- ---------------------------------------
 --------------------------
 set_lats    Set LATS parameters                      c_lats_set@
^liblats.gex
 query_lats  Query LATS parameters                    c_lats_query@
^liblats.gex
 lats_grid   Define LATS grid                         c_lats_grid@
^liblats.gex
 lats_data   Write data to LATS file                  c_lats_data@
^liblats.gex
 reinit_lats Re-init LATS parameters                  c_lats_reinit@
^liblats.gex

   Command          Mike Fiorino's Extensions             Function at Library
 ----------- ---------------------------------------
 --------------------------
 mfhilo      Find max/min or H/L in 2D field          c_mfhilo@^libmf.gex
 tcprop      Properties radinf from central lon/lat   c_tcprop@^libmf.gex
 grhist      histogram of expr                        c_grhist@^libmf.gex

   Command          Satellite Orbit Extensions            Function at Library
 ----------- ---------------------------------------
 --------------------------
 set_orb     Set ORB parameters                       c_set@^orb.gex
 orb_track   Satellite ground tracks                  c_track@^orb.gex

   Command             Shapefile Extensions               Function at Library
 ----------- ---------------------------------------
 --------------------------
 shp_lines   Draw lines    from shapefile             c_lines@^shape.gex
 shp_polyf   Draw polygons from shapefile             c_polyf@^shape.gex


                      ----------------------
                      User Defined Functions
                      ----------------------

  Function         Ben-Jei Tsuang's Extensions            Function at Library
 ----------- ---------------------------------------
 --------------------------
 lt          Local time                               f_bjt@^libbjt.gex
 jd          Julian day                               f_bjt@^libbjt.gex
 cosz        Cosine solar zenith angle                f_bjt@^libbjt.gex
 dayratio    Daylight ratio                           f_bjt@^libbjt.gex
 if          Conditional function                     f_bjt@^libbjt.gex
 maxv        Maximum value                            f_bjt@^libbjt.gex
 minv        Minimum value                            f_bjt@^libbjt.gex
 which       Label gridpoints                         f_bjt@^libbjt.gex
 ftest       F-test                                   f_bjt@^libbjt.gex
 ttest       T-test                                   f_bjt@^libbjt.gex
 tfit        Point  linear regression                 f_bjt@^libbjt.gex
 fit         Global linear regression                 f_bjt@^libbjt.gex
 tcorr2      Time correlation                         f_bjt@^libbjt.gex
 tregr2      Point linear regression                  f_bjt@^libbjt.gex
 tmave2      Time averaging w/masking                 f_bjt@^libbjt.gex
 madvu       Calculates -d(u*EXPR)/dx                 f_bjt@^libbjt.gex
 madvv       Calculates -d(V*EXPR)/dy                 f_bjt@^libbjt.gex
 madvw       Calculates -d(W*EXPR)/dp                 f_bjt@^libbjt.gex
 muadv       Zonal advection                          f_bjt@^libbjt.gex
 mvadv       Meridional advection                     f_bjt@^libbjt.gex
 mwadv       Vertical advection                       f_bjt@^libbjt.gex
 satvap      Saturated vapor pressure                 f_bjt@^libbjt.gex
 dew         Dew point temperature                    f_bjt@^libbjt.gex
 lw          Thermal infrared fluxes                  f_bjt@^libbjt.gex
 lw2         Thermal infrared fluxes v2               f_bjt@^libbjt.gex
 pinterp     Pressure interpolation                   f_bjt@^libbjt.gex
 zinterp     Height interpolation                     f_bjt@^libbjt.gex
 line        Draws a line                             f_bjt@^libbjt.gex
 vint2       Mass-weighted vertical integral          f_bjt@^libbjt.gex

  Function     Streamfunction & Velocity Potential        Function at Library
 ----------- ---------------------------------------
 --------------------------
 fish        Poisson solver                           f_fish@^fish.gex
 fish_psi    Compute streamfunction                   f_psichi@^fish.gex
 fish_chi    Compute velocity potential               f_psichi@^fish.gex
 fish_vor    Compute vorticity                        f_psichi@^fish.gex
 fish_div    Compute divergence                       f_psichi@^fish.gex

  Function       Saakeskus Wx Function Collection         Function at Library
 ----------- ---------------------------------------
 --------------------------
 dewpt       Dew-point temperature                    f_gsudf@^gsudf.gex
 ept         Equivalent potential temperature         f_gsudf@^gsudf.gex
 epi         Potential Instability                    f_gsudf@^gsudf.gex
 plcl        Pressure at LCL                          f_gsudf@^gsudf.gex
 shear       Wind Shear                               f_gsudf@^gsudf.gex
 srh1km      Storm-relative Helicity 0-1km'           f_gsudf@^gsudf.gex
 srh3km      Storm-relative Helicity 0-3km'           f_gsudf@^gsudf.gex
 tlcl        Temperature at LCL                       f_gsudf@^gsudf.gex
 tsindex     Chance of T-storm Initiation             f_gsudf@^gsudf.gex
 ttindex     Total Totals Index                       f_gsudf@^gsudf.gex
 wchill      Wind Chill Index (New)                   f_gsudf@^gsudf.gex

  Function           Simple Extension Example             Function at Library
 ----------- ---------------------------------------
 --------------------------
 hello       Hello, World! sample function            f_hello@^libhello.gex

  Function          Interprocess Communication            Function at Library
 ----------- ---------------------------------------
 --------------------------
 ipc_save    Save expression to stream                f_Save@^libipc.gex
 ipc_load    Load variable from file                  f_Load@^libipc.gex

  Function          Mike Fiorino's Extensions             Function at Library
 ----------- ---------------------------------------
 --------------------------
 smth2d      Shuman smoother/de-smoother              f_smth2d@^libmf.gex
 uv2trw      Find radial/tangential velocity          f_uv2trw@^libmf.gex
 re2         General interpolator (regrid2)           f_re2@^libmf.gex
 esmrf       Saturation vapor pressure (old MRF)      f_esmrf@^libmf.gex
 linreg      Linear regression: mx + b                f_linreg@^libmf.gex

  Function          Satellite Orbit Extensions            Function at Library
 ----------- ---------------------------------------
 --------------------------
 orb_mask    Satellite orbit masking                  f_mask@^orb.gex

  Function             Regridding Functions               Function at Library
 ----------- ---------------------------------------
 --------------------------
 re          General interpolator                     ffre@^re.gex
 re_         General interpolator (verbose)           ffre_dbg@^re.gex
 regrid2     regrid2-like wrapper for re()            f_gsudf@^gsudf.gex
 geos        Interpolation to GEOS-5 Grids            f_gsudf@^gsudf.gex
 reimg       Interpolation for Image Generation'      f_gsudf@^gsudf.gex

  Function         Spherical Harmonic Analysis            Function at Library
 ----------- ---------------------------------------
 --------------------------
 sh_filt     Spherical harmonic filter                f_shfilt@^shfilt.gex
 sh_power    Spherical harmonic spectra               f_shpowr@^shfilt.gex



--
Arlindo da Silva
dasilva at alum.mit.edu
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