Re: how to plot this contour map

Hi Zhuangshi and Dennis,

Thanks for your kind responses, I'll be able to try this by tomorrow.

Have a good day
Hongyan
On Tue, Oct 12, 2010 at 6:16 AM, Dennis Shea <shea@ucar.edu> wrote:

> Look at the Application/Examples page
>
> In particular,
> http://www.ncl.ucar.edu/Applications/HiResPrc.shtml
>
> There are several ways to handle this. Two approaches:
>
> [1] Set the zero or very small values to the background
> color or a color 'near' the back ground color.
> EG: cmorph_3.ncl
>
> [2] Use a trick. Say "x" is the variable to be plotted
>
> x@_FillValue = 0.0
> x@_FillValue = 1e20
>
> You must use both lines in the above order.
>
>
>
> On 10/11/10 4:10 PM, H.Dang wrote:
> > Hi dear all,
> >
> > I have some data to plot, but got no idea which function I should use.
> > The data is like V(100,100), but the value on most grids are zero, I
> > want to plot contours on those non-zero area, say, V(30:40, 30:40). So
> > What command should I use? Thank you!
> >
> > --
> > Cordially,
> > Hongyan
> > ºèÑã
> >
> >
> >
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-- 
Cordially,
Hongyan
ºèÑã

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Received on Tue Oct 12 08:01:02 2010