Re: hdf plotting error

Jinqing,

This is a satellite image, we have to tune to make things look right.
Attached are a script, and a plot generated.
You probably need to consult with a satellite image expert to see
what those parameters mean.

Regards,

Wei



On Tue, Jun 10, 2014 at 8:50 AM, 刘金卿 <liujq_0912@12=
6.com> wrote:

> Hi, Wei,
> Thanks for your reply, but the picture still seems wrong compared with th=
e
> image from website quick view (attachment).
> And I add
> res@mpDataSetName = "Earth..4"
> res@mpDataBaseVersion = "MediumRes"
> res@mpOutlineSpecifiers = (/"China:states","India","Taiwan”=
/)
> in the script, but it dose not work. Is there anyway to turn on the
> boundaries for this data?
>
>
>
>
> On Jun 10, 2014, at 0:41, Wei Huang <huangwei@ucar.edu> wrote:
>
> Jinqing,
>
> My may try this script:
>
> ;************************************************
> fn = "FY2C_TBB_IR1_NOM_20070816_1200.hdf.h5"
> f = addfile(fn, "r")
> vNam = getfilevarnames(f) ; all variables names on =
file
> print(vNam)
> ;************************************************
> ;pltType = "x11"
> pltType = "png"
> pltName = "T"
> ;************************************************
> ; plotting parameters
> ;************************************************
> wks = gsn_open_wks (pltType,pltName) ; open workstation
> ;gsn_define_colormap(wks,"amwg") ; choose colormap
> ;gsn_define_colormap(wks,"gsdtol")
> ;****************************************************
> res = True ; plot mods desired
> res@gsnMaximize = True ; make ps/eps/pdf large
> res@gsnSpreadColors = True
>
> res@cnFillOn = True
> ;res@cnLinesOn = True
> ;res@cnLineLabelsOn = True
> res@cnFillMode = "RasterFill" ; faster
> ;res@cnRasterSmoothingOn = True
> ;****************************************************
> x=f->FY2C_TBB_Hourly_Product(:,:)
>
> x = where(x.lt.150.0, -999.0, x)
> x@_FillValue = -999.0
>
> printVarSummary(x)
> plot = gsn_csm_contour(wks, x, res)
>
>
> Wei
>
>
>
> On Mon, Jun 9, 2014 at 4:56 AM, 刘金卿 <liujq_0912@1=
26.com> wrote:
>
>> Hi, I try to plot a hdf file, but got the following warnings:
>> warning:_NhlCreateSplineCoordApprox: Attempt to create spline
>> approximation for X axis failed: consider adjusting trXTensionF value
>> warning:IrTransInitialize: error creating spline approximation for
>> trXCoordPoints; defaulting to linear
>>
>> The picture seems wrong too. The data has been transferred on the ftp,
>> and the script is in attachment. Any suggestions will be appreciate.
>> ftp> put FY2C_TBB_IR1_NOM_20070816_1200.hdf
>>
>> -Liu
>>
>>
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> T.png(458K)极速下载
> <http://preview.mail.126.com/xdownload?filename=T.png&mid=1tbi1xqlc0g=
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Received on Tue Jun 10 05:07:42 2014