Thanks for the response Jody! I was able to work past previously doing
exactly as you suggested with one caveat. It was unable to read/understand
the False_Northing and False_Easting parameters so I had to remove these,
but feel like that was a safe change since in both the CRS used in my
project they are 0.0. Any thoughts on this?
On Tue, Mar 4, 2014 at 6:50 PM, Jody Garnett <jody.garn...@gmail.com> wrote:
> Looks like you have a PRJ file:
>
> PROJCS["World_Robinson",GEOGCS["GCS_WGS_1984",DATUM["
> D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]
> ],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION[
> "Robinson"],PARAMETER["False_Easting",0.0],PARAMETER["
> False_Northing",0.0],PARAMETER["Central_Meridian",0.0],UNIT["Meter",1.0]]
>
> If you would like to check if GeoTools can understand your PRJ file you
> can uses CRS.parseWKT( String ) method.
>
> There are examples here:
> http://docs.geotools.org/stable/userguide/library/referencing/crs.html
>
> Jody Garnett
>
>
> On Wed, Mar 5, 2014 at 10:47 AM, Jody Garnett <jody.garn...@gmail.com>wrote:
>
>> CRS detection is provided by the "PRJ" sidecar file. If it is present
>> then GeoTools can read the file and parse a CoordinateReferenceSystem
>> object out.
>>
>> If it is not present you can either set it manually (GeoTools will write
>> out the PRJ file), or in cases where the PRJ file is missing/wrong you can
>> force a CRS as part of your Query.
>>
>> Jody Garnett
>>
>>
>> On Wed, Feb 26, 2014 at 8:35 AM, Thomas Evans
>> <thomasjevan...@gmail.com>wrote:
>>
>>> Thanks for clarifying the terminology Frank. I have 6 Shapefiles all
>>> located in the same directory with the accompanying sidecar files there as
>>> well, is there anything else required to "operate on the as a group"?.
>>> Can anyone explain how the CRS is detected when using the
>>> ShapefileDataStore, or if I always need to manually set it?
>>>
>>>
>>> On Mon, Feb 24, 2014 at 9:30 PM, Frank van der Hulst <
>>> drifter.fr...@gmail.com> wrote:
>>>
>>>> The term "Shapefile" does not refer just to the .SHP file, but also to
>>>> all the other files with the same name (.dbf, .prj. etc). These files
>>>> should always be operated on as a group.
>>>>
>>>>
>>>>
>>>> On Tue, Feb 25, 2014 at 2:32 PM, Thomas Evans <thomasjevan...@gmail.com
>>>> > wrote:
>>>>
>>>>> Hi List,
>>>>>
>>>>> This is my first experience with GISData and GeoTools. I am trying to
>>>>> use the ShapefileDataStore(URL url) to load up a handful of shape files
>>>>> into my Geography. The schema and AttributeType of the GeometryTypeImpl
>>>>> that are created during the ShapefileDataStore construction both contain a
>>>>> null CRS. I believe this info is usually loaded from the .prj file that
>>>>> is
>>>>> located in the same directory with the same filename of the .shp file.
>>>>> Does anyone know of any gotchas here?
>>>>>
>>>>> Code -
>>>>> URL url = data.getFile().toURI().toURL();
>>>>> ShapefileDataStore store = new ShapefileDataStore(url);
>>>>> SimpleFeatureType schema = store.getSchema(store.getTypeNames()[0]);
>>>>> // First attribute at index 0 is always the Geometry
>>>>> AttributeType type = schema.getType(0);
>>>>> CoordinateReferenceSystem dataCRS = ((GeometryType)
>>>>> type).getCoordinateReferenceSystem(); <-- Returns null
>>>>>
>>>>> schema.toString() -
>>>>> SimpleFeatureTypeImpl
>>>>> http://www.opengis.net/gml:SoCALbg2010_TRTP_Extent_DATA_NUMBERSidentified
>>>>> extends
>>>>> polygonFeature(the_geom:MultiPolygon,OBJECTID:OBJECTID,GEOID10:GEOID10,Shape_Leng:Shape_Leng,Shape_Area:Shape_Area,STATEP10_N:STATEP10_N,COUNTRYFP1:COUNTRYFP1,TRACTCE10_:TRACTCE10_,BLKGRPCE10:BLKGRPCE10,GEOID10_NO:GEOID10_NO,INTPLAT10_:INTPLAT10_,INTPLTON10:INTPLTON10,BLKGRP_NAM:BLKGRP_NAM,POP_TOTAL_:POP_TOTAL_,HHI_MEDIAN:HHI_MEDIAN,NOSCHOOL_N:NOSCHOOL_N,NOGED_NO:NOGED_NO,GED_NO:GED_NO,SOMEGOLLEG:SOMEGOLLEG,ASSOCIATE_:ASSOCIATE_,BACHELOR_N:BACHELOR_N,MASTER_NO:MASTER_NO,PROFESSION:PROFESSION,DOCTORATE_:DOCTORATE_,EDUCATION_:EDUCATION_,INCOME_NO:INCOME_NO,POWER_NO:POWER_NO,ALAND10_NO:ALAND10_NO,AWATER10_N:AWATER10_N,AREA_SQMI_:AREA_SQMI_,DENSITY_SQ:DENSITY_SQ)
>>>>>
>>>>> type.toString() -
>>>>> GeometryTypeImpl MultiPolygon<MultiPolygon>
>>>>>
>>>>> prj file content -
>>>>>
>>>>> PROJCS["World_Robinson",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Robinson"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],UNIT["Meter",1.0]]
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
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>>>>>
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>>>>> _______________________________________________
>>>>> GeoTools-GT2-Users mailing list
>>>>> GeoTools-GT2-Users@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
>>>>>
>>>>>
>>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Flow-based real-time traffic analytics software. Cisco certified tool.
>>> Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
>>> Customize your own dashboards, set traffic alerts and generate reports.
>>> Network behavioral analysis & security monitoring. All-in-one tool.
>>>
>>> http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk
>>> _______________________________________________
>>> GeoTools-GT2-Users mailing list
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>>>
>>>
>>
>
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