[gradsusr] Info about shape files

[Jennifer Adams]

A shapefile is a set of points, lines, or polygons, not gridded data,  
and there is no way to use the analysis functions in GrADS on the  
graphical elements in a shapefile. --Jennifer


On Jun 29, 2011, at 5:51 AM, Francesco Piani wrote:

> Thanks for the reply.
> But MeteoInfo seems to be a different tool than GrADS. I wonder if  
> GrADS can use shape also for maskout or other statistical operations.
>
> Francesco
>
> Da: "Yaqiang Wang" <yaqiang.wang at gmail.com>
> A: "piani" <piani at lamma.rete.toscana.it>
> Inviato: Martedì, 28 giugno 2011 16:04:14
> Oggetto: Re: [gradsusr] Info about shape files
>
> Hi Francesco,
>
> 1. Shape files could be used as maskout layer in MeteoInfo which is  
> free avaliable at http://www.esnips.com/web/MeteoInfo . You can even  
> use one or more shapes in a shape file as maskout through output the  
> shapes to a .wmp file. In this way, the plot will be masked exactly  
> by the border lines of the shapes.
>
> 2. With MeteoInfo, you can output the shapes of a shape file to a  
> maskout grid data which could be used in maskout() function of GrADS.
>
> The detailed information could be found in the help document of  
> MeteoInfo. Only polygon shape files are valid for above application.
>
> Best Regards!
> Yaqiang Wang
>
> **************************************************
> Dr. Yaqiang Wang
> Chinese Academy of Meteorological Sciences (CAMS)
> 46, Zhong-Guan-Cun South Avenue
> Beijing, 100081
> China
> 　　　　　　　　　　　　　　
> yaqiang.wang at gmail.com
> ***************************************************
> 2011-06-28
>
> ======= 2011-06-28 18:17:36 In your letter：=======
>
> >Hi all.
> >I'm working with shapefiles and I would like to know if it's  
> possible to use them for other operations than draw and write. In  
> particular, is there a way to use with maskout()?
> >
> >
> >Thanks in advance.
> >
> >
> >Francesco
> >_______________________________________________
> >gradsusr mailing list
> >gradsusr at gradsusr.org
> >http://gradsusr.org/mailman/listinfo/gradsusr
> >
>
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>
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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