Hi,
I am reading a shapefile using the following code from the User Guide:
File file = new File("/Users/gregederer/servers/geoserver_data/data/
shapefiles/gaul/Africa/g2008_1.shp");//getShapeFile(args);
ShapefileDataStore shapefile = new
ShapefileDataStore(file.toURL());
String typeName = shapefile.getTypeNames()[0];
FeatureSource featureSource = shapefile.getFeatureSource();
FeatureType schema = featureSource.getSchema();
CoordinateReferenceSystem crs =
schema.getGeometryDescriptor().getCoordinateReferenceSystem();
MapContext map = new DefaultMapContext(crs);
Style style = createStyle(file, schema);
map.addLayer(featureSource, style);
showMap(map);
in showMap():
final JMapPane mapPane = new JMapPane(new StreamingRenderer(),
map);
mapPane.setMapArea(map.getLayerBounds());
When I run this code against my shapefile, I get:
Exception in thread "main" java.io.IOException: CRS of this map
context is null. Unable to get bounds.
at
org
.geotools.map.DefaultMapContext.getLayerBounds(DefaultMapContext.java:
544)
at org.esv.SummaryStats.ShapeLab.showMap(ShapeLab.java:187)
at org.esv.SummaryStats.ShapeLab.main(ShapeLab.java:75)
Is it possible that this shapefile has no CRS? If so, is there a
factory method that I can use to get the required
CoordinateReferenceSystem reference? I happen to know that this
particular shapefile is in ESPG:4326. What other parameters will I
need?
Thanks!
Greg
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