FW: Re: New Win32 Release of GrADS v1.9.0-rc1

Wed Apr 9 00:27:31 EDT 2008

On Wed, Apr 9, 2008 at 12:10 AM, Mark Sponsler <msponsler at comcast.net>
wrote:

> Many thanks Arlindo.
>
> I'm not quite sure I understand exactly all that Graziano is saying, but
> it sound like the outlines of areas should work fine, but that the filling
> of those shapes probably will not.  I played with it a bit more, trying to
> fill landmasses that were completely bordered (e.g. the big island of
> Hawaii), but no luck.
>
> Still the hires coastline (and lakes) found in the  '_lines' files are of
> much value.
>
> Thanks again for all your help.
>
> If any one has other suggestions or ideas it would be appreciated.
>

I guess what Graziano was saying is that the free files we get from NOAA do
not define polygons that can be filled. Commercial shapefile files available
from ESRI are more carefully constructed as to permit the polygon fill. I'll
be purchasing the DVD from AGI and report back whether it is worth the price
tag (> $100).

> --
> Thanks,
> Mark
>
>
> -------------- Original message --------------
> From: Arlindo da Silva <dasilva at ALUM.MIT.EDU>
> Mark,
> Graziano who is temporarily unable to post to this list sends the
> following response:
>
> Hi Mark,
> gshhs shapefile contains same data as in the binary file, so we have
> mostly arcs and not so much polygons.
> To fill a shape, it must be closed.
> ESRI data are much more quality checked and with lot of useful geometric
> characteristic, but they are non-free (being the same very diffused).
>
> Does anybody here know about a source of global public GIS data in a
> format supported by gdal?
>
> Graziano.
>
>
> On Tue, Apr 8, 2008 at 12:54 PM, Mark Sponsler <msponsler at comcast.net>
> wrote:
>
> >  Hi Arlindo,
> > I tried downloading the gshhs lake files too and received the same
> > result.  Here's the segment of the script that overlays the shapefiles. I've
> > attached the output (png file)
> >
> >  'set line 33 1 6'
> > 'shp_lines gshhs_land'
> > 'shp_polyf gshhs_land'
> > 'shp_lines hshhs_lake'
> > 'shp_polyf hshhs_lake'
> >
> > Also here is the out put from Grads.  As best I can tell it is reading
> > the shapefile fine and appears to be drawing both the lines and polygons,
> > but the polygons do not appear. Any thoughts would be appreciated.
> >
> >
> > Starting grads under c:\PROGRA~1\PCGRAD~2\win32 ...
> > Grid Analysis and Display System (GrADS) Version 1.9.0-rc1
> > Copyright (c) 1988-2007 by Brian Doty and IGES
> > Center for Ocean-Land-Atmosphere Studies (COLA)
> > Institute for Global Environment and Society (IGES)
> > GrADS comes with ABSOLUTELY NO WARRANTY
> > See file COPYRIGHT for more information
> > Config: v1.9.0-rc1 32-bit little-endian readline sdf/xdf netcdf dap
> > dap-stn lats
> >  athena printim
> > Issue 'q config' command for more information.
> > Error opening user function definition table
> >   File name is: c:\Program Files\PCGrADS19\win32\udf
> > GX Package Initialization: Size = 11 8.5
> > Running in Batch mode
> > Grib = test
> > reg       = sf
> > map_reg = sf
> > map = W140N40
> >  Displaying Beach sf W140N40
> >  Define beach1 complete
> > Beach Overlay Complete
> >  Displaying Relief sf W140N40
> > Using shapefile /dat/gshhs_land
> > Shapefile Type: Arc   # of Shapes: 191811
> > File Bounds: (-180.000, -78.570) to ( 180.000,  83.633)
> > Done shapefile /dat/gshhs_land
> > Using shapefile /dat/gshhs_land
> > Shapefile Type: Arc   # of Shapes: 191811
> > File Bounds: (-180.000, -78.570) to ( 180.000,  83.633)
> > Done shapefile /dat/gshhs_land
> > Using shapefile /dat/hshhs_lake
> > Shapefile Type: Arc   # of Shapes: 7287
> > File Bounds: (-180.000, -67.123) to ( 180.000,  83.327)
> > Done shapefile /dat/hshhs_lake
> > Using shapefile /dat/h shhs_lake
> > Shapefile Type: Arc   # of Shapes: 7287
> > File Bounds: (-180.000, -67.123) to ( 180.000,  83.327)
> > Done shapefile /dat/hshhs_lake
> > Start Print
> >    ** sf Print Complete **
> > End of file
> > Region Loop closed
> > Processing Complete
> > ga->
> >
> > --
> > Thanks,
> > Mark
> >
> >
> > -------------- Forwarded Message: --------------
> > From: msponsler at comcast.net (Mark Sponsler)
> > To: GRADSUSR at LIST.CINECA.IT
> > Subject: Re: New Win32 Release of GrADS v1.9.0-rc1
> > Date: Mon, 07 Apr 2008 20:24:48 +0000
> >
> >  Hi Arlindo,
> > Thanks so much for providing these new capabilities.  This is wonderful
> > stuff!
> >
> > I've been playing with shapefiles from gshhs and ersi
> > using Win32 superpack non-self installing version.  Can get the outline of
> > the coast to display fine from both sources but not the polygons from gshhs.
> > Polygons from ersi works fine though. Also cannot seem to get the coast
> > outline to draw 'thicker'.  Not sure if that is an available option, but
> > here's the code I'm using.
> >
> > 'set line 33 1 6'
> > 'shp_lines gshhs_land'
> > 'shp_polyf gshhs_land'
> >
> > Am I dong something wrong?
> > --
> > Thanks,
> > Mark
> >
> >
> >
> > -------------- Original message --------------
> > From: Arlindo da Silva <dasilva at ALUM.MIT.EDU>
> >
> > All,
> >
> >
> >   I just uploaded to sf.net a new Win32 GrADS release:
> >
> >
> >
> > http://sourceforge.net/project/showfiles.php?group_id=161773&package_id=270750
> >
> > Notice that Win32 GrADS now has its own packaged called "grads-windows".
> > See the ChangeLog for additional info.
> >
> >    This version fixes some bugs with DOS-style text files, and includes
> > Release 2 of the OpenGrADS extensions, with Grib-2 and Shapefile support (as
> > well as an improved "fish"). To quickly checkout the new features:
> >
> > Grib-2:
> >
> >    ga-> g2_open ../data/model_25.gdf
> >    ga-> d g2(tmpprs)
> >
> > or with the % shorthand
> >
> >    ga-> % d tmpprs
> >
> > Shapefile:
> >
> >    ga-> open ../data/model.ctl
> >    ga-> d ts
> >    ga-> shp_polyf admin98
> >
> > Fish:
> >
> >    ga-> set lev 200
> >    ga-> d fish_psi(ua,va)
> >    ga-> clear
> >    ga-> d fish_chi(ua,va)
> >
> >    For documentation,
> >
> >           http://opengrads.org/doc/
> >
> >    Let me know of any problems.
> >
> >       Arlindo
> >
> >
> > --
> > Arlindo da Silva
> > dasilva at alum.mit.edu
> >
> >
>
>
> --
> Arlindo da Silva
> dasilva at alum.mit.edu
>
>

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