[ncl-talk] shapefile woes

[Matt Flournoy]

Hi Rick,

Thanks! I'm absolutely sure it's the correct path, and I now get a file
extension error as well:

---

fatal:["FileSupport.c":4159]:(/home/matt.flournoy/PECAN/overview/July06/new_shp/USA_county_shps/USA_adms2.shp)
has no file extension, can't determine type of file to open

(0) Error: gsn_add_shapefile_polylines: Can't open shapefile
'/home/matt.flournoy/PECAN/overview/July06/new_shp/USA_county_shps/USA_adms2.shp'

(0)       No shapefile information will be added.

---

The .shp, .shx, and .dbf files are all in the same directory
(.../USA_county_shps/), and all of them have the "USA_adm2" prefix.

Thanks,

Matt

On Thu, Jun 2, 2016 at 4:29 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:

> Hi Matt,
>
> The error says "...can't open shapefile...", so I'm not sure its a
> projection issue. Are you absolutely positive you've got the correct path?
> And you have the requisite 3 files at that path -- the .shp, the .shx, and
> the .dbf file,  all with the same "USA_adm2" prefix.
>
> Rick
>
> On Thu, Jun 2, 2016 at 2:56 PM, Matt Flournoy <mflournoy37 at gmail.com>
> wrote:
>
>> Hi Kacie!!
>>
>> Thanks for the suggestions. I tried gsn_add_shapefile_polygons, but got
>> the same error as when I used polylines. I'm not sure how to check the map
>> projections for the shapefiles, but I'll look into that.
>>
>> Thanks!
>> Matt
>>
>> On Thu, Jun 2, 2016 at 3:37 PM, Kacie Shourd <Kacie.Shourd at dri.edu>
>> wrote:
>>
>>> Hi Matty (<3),
>>>
>>>
>>>
>>> I’ve never plotted shapefiles in NCL before, so bear with me. Looking at
>>> your code, I would suggest you try using gsn_add_shapefile_polygons like
>>> you use gsn_add_shapefile_polylines. Similar to how you are attempting to
>>> add the road polylines, try to add the polygons in this way as well?? The
>>> map you are calling in the create_SD_map function you have defined doesn’t
>>> draw these as far as I can tell.
>>>
>>>
>>>
>>> Another thing to check would be that your map projections are matching
>>> between the shapefiles and the map you have called using NCL.
>>>
>>>
>>>
>>> Hopefully this helps, or someone else can guide you further.
>>>
>>>
>>>
>>> Best,
>>>
>>> Kacie
>>>
>>>
>>>
>>> ---
>>>
>>> Kacie N. Shourd
>>>
>>> 드림
>>>
>>>
>>>
>>> Graduate Research Assistant
>>>
>>> Desert Research Institute
>>>
>>> Kacie.Shourd at dri.edu
>>>
>>> Work: (775) 674-7049
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *From:* ncl-talk-bounces at ucar.edu [mailto:ncl-talk-bounces at ucar.edu] *On
>>> Behalf Of *Matt Flournoy
>>> *Sent:* Thursday, June 02, 2016 12:59 PM
>>> *To:* ncl-talk at ucar.edu
>>> *Subject:* [ncl-talk] shapefile woes
>>>
>>>
>>>
>>> Hi all,
>>>
>>>
>>>
>>> I'm trying to plot a simple map of a few counties and roads in South
>>> Dakota using NCL 6.3.0. To do this, I've downloaded USA county shapefiles
>>> (from "http://www.gadm.org/country") and SD road network shapefiles
>>> (from "http://download.geofabrik.de/north-america.html"). Then, I use
>>> gsn_add_shapefile_polylines to add the USA counties to an existing map in
>>> my code, but I get this error message:
>>>
>>>
>>>
>>> (0) Error: gsn_add_shapefile_polylines: Can't open shapefile
>>> '/home/matt.flournoy/PECAN/overview/July06/new_shp/USA_adm_shp/USA_adm2.shp'
>>>
>>> (0)       No shapefile information will be added.
>>>
>>>
>>>
>>> I get the same error if I try inputing the road network shapefile,
>>> except that the directory in the first error message is the directory where
>>> the road network shapefile is. The map is plotted when I run the code, but
>>> the shapefile information is not on them.
>>>
>>> Does anyone know what may be causing this issue? I've attached the code
>>> that I'm using, which is very similar to the NCL example online about
>>> reading in USA county shapefiles from the same site as above.
>>>
>>> Thank you,
>>>
>>> Matt
>>>
>>>
>>>
>>> --
>>>
>>> Matthew Flournoy
>>>
>>> M.S. Meteorology Student, University of Oklahoma
>>>
>>> B.S. Meteorology, Penn State University
>>>
>>> PUBLIC RECORDS NOTICE: In accordance with NRS Chapter 239, this email
>>> and responses, unless otherwise made confidential by law, may be subject to
>>> the Nevada Public Records laws and may be disclosed to the public upon
>>> request.
>>>
>>
>>
>>
>> --
>> Matthew Flournoy
>> M.S. Meteorology Student, University of Oklahoma
>> B.S. Meteorology, Penn State University
>>
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>


-- 
Matthew Flournoy
M.S. Meteorology Student, University of Oklahoma
B.S. Meteorology, Penn State University
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