Hi,
We have a number of shapefiles that don’t have .prj files, but do have .xml
files that list a coordinateSystem. Does anyone have a method within GeoTools
that can convert the coordinate system name to a valid CRS so we can reproject?
example: shapefile.xml
<?xml version="1.0" encoding="UTF-8"?>
<data>
<coordinateSystem>
<name>Universal Transverse Mercator - Zone 13 (N)</name>
<datum>North American 1983 (mean for CONUS)</datum>
<system>Transverse Mercator</system>
...
Based on my research, I think the CRS Code should be EPSG:32613
http://spatialreference.org/ref/epsg/wgs-84-utm-zone-13n/
But, how to get there with the info available is stumping me
Files available:
shapefile.shp
shapefile.xml
shapefile.sbn
shapefile.sbx
shapefile.shx
shapefile.shp.xml
shapefile.dbf
I’ve made two attempts:
1. Try and get the CRS from the schema — issue it’s NULL
Map<String, URL> connect = new HashMap<>();
connect.put("url", shapefile.toURI().toURL());
CoordinateReferenceSystem crs =
featureSource.getSchema().getCoordinateReferenceSystem();
// issue crs is null;
2. Try and get the CRS by parsing the name, issue — it appears to be wrong
Set<String> supportedCodes = CRS.getSupportedCodes("Universal
Transverse Mercator - Zone 13 (N)");
CoordinateReferenceSystem decode =
CRS.decode(supportedCodes.iterator().next());
logger.debug("{}", decode);
DEBUG 2016-06-09 11:08:16,104 11958 [main []]
(ShapefileConverterITCase.java:48)
org.tdar.db.conversion.ShapefileConverterITCase - GEOGCS["WGS84(DD)",
DATUM["WGS84",
SPHEROID["WGS84", 6378137.0, 298.257223563]],
PRIMEM["Greenwich", 0.0],
UNIT["degree", 0.017453292519943295],
AXIS["Geodetic longitude", EAST],
AXIS["Geodetic latitude", NORTH]]
Any ideas?
thanks,
adam
--
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Adam Brin
Director of Technology, Digital Antiquity
480.965.1278
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