[gradsusr] How to output contour to a txt/dat file

[leila amini]

hi
I need to change wrfout***.nc   to data file for exel
can you help me
thanks leila

On Fri, Sep 16, 2016 at 1:04 AM, Jennifer M Adams <jadams21 at gmu.edu> wrote:

> Hi, Mike —
> I’m glad you got what you need from the KML output. The lat/lon values for
> the contour line vertices are buried in the shape file, but you have to use
> ‘shpdump’ (a stand-alone utility that is built along with the shapfile
> library) to print them out.
> —Jennifer
>
>
> On Sep 15, 2016, at 4:19 PM, Mike Fiorino - NOAA Federal <
> michael.fiorino at noaa.gov> wrote:
>
> hi again -- 'set gxout kml' does the trick:
>
> 'set gxout kml'
> 'set kml -ln kmltest'
> 'set clevs 0'
> 'd temp'
>
> the file kmltest.kml has the lon/lat/z (0) for each contour in
> <coordinates>
> lon0,lat0,0 lon1,lat1,0 ...
> lonN,latN,0
> </coordinates>
>
> thanks /R Mike
>
> hi Jennifer -- I have a similar problem...  I can generate and display the
> shp file and the 'q shp' works as advertised, but what I really need are
> the actually lat(Y)/lon(X) of the vertices not just the bounds, e.g.,
>
> 37:  ArcM  parts=1  vertices=553  XBounds=0:360  YBounds=41.4058:74.4189
> ZBounds=0:0  MBounds=5700:5700
>
> tells me there are 553 vertices and that the lon bound is 0-360 and lat
> bound is 41.4-74.4.  do I have to use some GIS s/w to get the lat/lons? or
> is there a way to mod grads to output?
>
> thanks!  best /R Mike
>
> On 9/7/16 10:37 AM, Jennifer M Adams wrote:
>
> GrADS can write out the shapefile for you. Use ‘set gxout shp’ and ‘set
> shp’ to control the output. Documentation is at http://cola.gmu.edu/grads/
> gadoc/shapefiles.html.
>
> ‘set gxout shp'
> ‘set shp -line shptest'
> ’set clevs 0’
> ‘d temp'
>
> —Jennifer
>
>
> On Sep 6, 2016, at 8:47 PM, Taixia <wutxcn at GMAIL.COM> wrote:
>
> Thanks for your reply. Exactly.  I'd like get a *.shp file of the 0
> contour's. It should be get the lat/lon of the contour's position first,
> and then using Arcgis software to generate the .shp file.
>
> On Wednesday, September 7, 2016, Jennifer M Adams <jadams21 at gmu.edu>
> wrote:
> > I guess I did not fully understand the question. You have drawn the
> 0-degree temperature contour; what exactly do you want to output to a text
> file? The lat/lon of the contour’s position? —Jennifer
> >
> > On Sep 3, 2016, at 7:19 PM, Taixia <wutxcn at GMAIL.COM> wrote:
> >
> > Hi Jennifer,
> > Thanks a lot for your reply.
> > Problem still exists,forgive a Grads beginner. The data I used is the
> NECP 5 years average air temperature, I'd like get the zero degree
> temperature line. After "set clevs 0", I got the contours graphic (see
> attachment). But I still cannot get the output file as your steps. Could
> you please have a look at the attachments and help?
> > ---Tim
> > On Fri, Sep 2, 2016 at 7:20 PM, Jennifer M Adams <jadams21 at gmu.edu>
> wrote:
> >>
> >> After drawing a plot, you can check the contour levels used with ‘q
> shades’ or ‘q contours’. For line contours, the output looks like this
> (first column is color number, second column is contour value):
> >> Number of levels = 11
> >> 9 50000
> >> 14 55000
> >> 4 60000
> >> 11 65000
> >> 13 70000
> >> 3 75000
> >> 10 80000
> >> 12 85000
> >> 8 90000
> >> 2 95000
> >> 6 100000
> >> If you want to write this to a file, here is a script fragment:
> >> ‘q contours’
> >> rc=write(“contourinfo.txt”,result)
> >> rc=close(“contourinfo.txt”)
> >> —Jennifer
> >> On Sep 1, 2016, at 9:57 PM, Taixia <wutxcn at GMAIL.COM> wrote:
> >>
> >> Anybody knows how to output the contour value (such as set clevs 0) to
> .txt or .dat file (not graphic)? Thanks.
> >> _______________________________________________
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> >>
> >> --
> >> Jennifer Miletta Adams
> >> Center for Ocean-Land-Atmosphere Studies (COLA)
> >> George Mason University
> >>
> >>
> >>
> >>
> >> _______________________________________________
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> >> http://gradsusr.org/mailman/listinfo/gradsusr
> >>
> >
> > <air1115.nc><snap.bmp>_______________________________________________
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> > --
> > Jennifer Miletta Adams
> > Center for Ocean-Land-Atmosphere Studies (COLA)
> > George Mason University
> >
> >
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>
> --
> Jennifer Miletta Adams
> Center for Ocean-Land-Atmosphere Studies (COLA)
> George Mason University
>
>
>
>
>
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> --
> Jennifer Miletta Adams
> Center for Ocean-Land-Atmosphere Studies (COLA)
> George Mason University
>
>
>
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