Re: [Opengrads-devel] Proof of concept: grads 2.0.a3 100% under JVM

[Arlindo da S. <da...@al...>]

All,
   I just refreshed

       http://opengrads.org/devel/grads2/grads.jar

It is getting quite functional now: grib-1, grib-2, netcdf, hdf, printim.
Still no readline, x11 or opendap; see output of "q config" below. This is
all 100% java (no JNI), it should run anywhere.

Brian:  I know you are thinking about redesigning the graphical engine in
grads. Do you have any thoughts on how one could handle the graphics in
Java? Currently, I have gxX.c stubbed out. I was thinking about implementing
"gxX.c" in java around JPanel.

    Arlindo


ga>  q config
Config: v2.0.a3.oga.2dev big-endian printim grib2 netcdf hdf4-sds
Grid Analysis and Display System (GrADS) Version 2.0.a3.oga.2dev
Copyright (c) 1988-2008 by Brian Doty and the
Institute for Global Environment and Society (IGES)
This program is distributed WITHOUT ANY WARRANTY
See file COPYRIGHT for more information.

Built Sat Dec 13 00:32:59 BRST 2008 for mips-unknown-elf

This version of GrADS has been configured with the following options:
  o Built on a BIG ENDIAN machine
  o Command line editing DISABLED
  o printim command for image output ENABLED
      http://www.zlib.net
      http://www.libpng.org/pub/png/libpng.html
      http://www.libgd.org/Main_Page
  o GRIB2 interface ENABLED
      http://www.ijg.org
      http://www.ece.uvic.ca/~mdadams/jasper
      http://www.nco.ncep.noaa.gov/pmb/codes/GRIB2
      g2clib-1.0.5
  o NetCDF interface ENABLED
      http://www.unidata.ucar.edu/software/netcdf
      netcdf "3.6.2" of Dec 11 2008 22:17:25 $
  o NCSA HDF interface ENABLED
      http://hdf.ncsa.uiuc.edu
      HDF4.2r3
  o Athena Widget GUI DISABLED
  o OPeNDAP gridded data interface DISABLED
  o OPeNDAP station data interface DISABLED





On Thu, Dec 11, 2008 at 12:38 AM, Arlindo da Silva <da...@al...>wrote:

> Hi,
>   I was able to created a prototype build of grads v2 that runs entirely
> under the JVM:
>
>        http://opengrads.org/devel/grads2/grads.jar
>
>   To try it out:
>
>       java -cp grads.jar grads
>
>   Most external libraries have been disabled at this point, even X.
> However, you can do things like
>
>   ga> open model.ctl
>   ga> d ts
>   ga> print ts.eps
>
> It feels quite usable on my MacPro laptop, speed-wise I mean. What do you
> think? Here is the best part of it:
>
>   numer of grads source code lines modified: 0, except for the replacing
> gxX.c with the attached stubs.
>   number of build script lines modified: 0
>
> Jennifer: you may want to carry the gxX.c stubs along with the sources code
> and have a --disbale-X11 during configure. This is very useful to create
> binaries for machines that do not provide X11 (say many computer centers
> disable X11 at the compute nodes).
>
> Here is the tool that I used:
>
>        http://nestedvm.ibex.org/
>
> Building this gcc toolchain on Mac OS X 10.5  is kind of tricky, talk to me
> before attempting to do it yourself. I'll post notes about it at some point.
> It may be simpler on Linux, but I have not tried it myself.
>
> Beware: this is rough, just a proof of concept for now; however I'd be
> interested in hearing about problems. Soon we may be able to run grads on
> cell phones.
>
>   Arlindo
>
>
> --
> Arlindo da Silva
> da...@al...
>



-- 
Arlindo da Silva
da...@al...