[ncl-talk] Unable to read shapefile attribute table correctly

[Peirong Lin]

Thanks anyway! Hope to hear from you soon.

Best,
Peirong


On Wed, Aug 6, 2014 at 9:50 AM, Rick Brownrigg <brownrig at ucar.edu> wrote:

> Hi Peirong,
>
> I am looking into this issue with the files you sent.  This appears to be
> a serious bug somewhere, but I as of yet can not tell where it is
> originating.  I've verified separately, using GDAL utilities, that the
> COMID field is indeed non-zero.  I will post an update on progress later,
> but this may take much time to track down.
>
> Rick
>
>
>
> On Tue, Aug 5, 2014 at 3:23 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:
>
>> Hi Peirong,
>>
>> Are you able to share those shapefiles, and if so, would you mind sending
>> them to me?  If they are too big to be emailed, there's our ftp site:
>>
>> http://ncl.ucar.edu/report_bug.shtml
>>
>> Thanks,
>> Rick
>>
>>
>>
>> On Tue, Aug 5, 2014 at 3:13 PM, Peirong Lin <peironglinlin at gmail.com>
>> wrote:
>>
>>> Dear NCL,
>>>
>>> I am using the following NCL code to read a shapefile attribute table
>>> (which allows further computation), but when I printed out all the
>>> "COMIDs", they are all "0". But when I open the shapefile in ArcGIS, the
>>> COMIDs can be correctly shown. Can anybody provide some hints to resolve
>>> this?
>>>
>>>
>>> *begin*
>>>
>>> *shp_file        = "./NHDFlowline.shp"*
>>>
>>> *f       = addfile(shp_file,"r")*
>>>
>>> *varnames        = getfilevarnames(f)*
>>>
>>> *print("varnames = "+varnames)*
>>>
>>> *COMIDs  = f->COMID*
>>>
>>> *print(COMIDs)*
>>>
>>> *end*
>>>
>>> I've already made sure the COMID is a variable in the shapefile, but the
>>> values just cannot be read correctly. Thank you in advance for replying!!
>>>
>>> Best,
>>> Peirong
>>>
>>>
>>> --
>>> *Peirong Lin* (Ms.)
>>> Graduate Research Assistant (JGB 5.322)
>>> Jackson School of Geosciences
>>> The University of Texas at Austin
>>> Contact: 512-201-3731
>>> prlin at utexas.edu; peironglinlin at gmail.com
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
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>>>
>>>
>>
>


-- 
*Peirong Lin* (Ms.)
Graduate Research Assistant (JGB 5.322)
Jackson School of Geosciences
The University of Texas at Austin
Contact: 512-201-3731
prlin at utexas.edu; peironglinlin at gmail.com
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