The second tutorials has this covered:
- http://docs.codehaus.org/display/GEOTDOC/06+CSV2SHP+Lab
Either:
- final SimpleFeatureType TYPE = DataUtilities.createType("Location",
"location:Point,name:String");
- or use a FeatureTypeBuilder
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
builder.setName( "Location" );
builder.setCRS( DefaultGeographicCRS.WGS84 );
//add attributes in order
builder.add( "Location", Point.class );
builder.length(15).add( "Name", String.class );
//build the type
final SimpleFeatureType LOCATION = builder.buildFeatureType();
return LOCATION;
Jody
On 07/08/2009, at 9:09 PM, iceDice wrote:
Hello,
I have array of com.vividsolutions.jts.geom.LineSegment objects and
i want
to create new shapefile from it
to display it on map.
I follow lab on http://docs.codehaus.org/display/GEOTDOC/07+FeatureStore
but
when i try to do following:
FeatureCollection<SimpleFeatureType, SimpleFeature> collection =
FeatureCollections.newCollection();
org.opengis.feature.simple.SimpleFeatureType featureType;
MultiLineString line;
...
collection.add(featureType.create(new Object[] { line }));
i found out that org.opengis.feature.simple.SimpleFeatureType don't
have
method create at all.
I try to cast it to org.geotools.feature.SimpleFeatureType but got
exception:
java.lang.ClassCastException:
org.geotools.feature.simple.SimpleFeatureTypeImpl cannot be cast to
org.geotools.feature.SimpleFeatureType
I hope so someone can help me about this.
Here is my complete code:
public static void writeToShapefile(LineSegment[] lineSegments) {
DefaultTransaction transaction = new DefaultTransaction("Example1");
try {
FileDataStoreFactorySpi factory = new
IndexedShapefileDataStoreFactory();
File file = new File("myShp.shp");
//Map map = Collections.singletonMap("shapefile url",
file.toURI().toURL());
Map map = Collections.singletonMap("url", file.toURI().toURL());
ShapefileDataStore myDataStore =
(ShapefileDataStore)factory.createNewDataStore(map);
myDataStore.forceSchemaCRS(CRS.decode("EPSG:4326"));
SimpleFeatureType featureType =
DataUtilities.createType("best_path",
"geom:MultiLineString");
myDataStore.createSchema(featureType);
/* populate collection from line segments */
FeatureCollection<SimpleFeatureType, SimpleFeature> fc =
populate(featureType, lineSegments);
/* write features to shape file */
FeatureSource<SimpleFeatureType, SimpleFeature> source =
myDataStore.getFeatureSource("best_path");
if (source instanceof FeatureStore) {
// you have write access
FeatureStore<SimpleFeatureType, SimpleFeature> store =
(FeatureStore<SimpleFeatureType, SimpleFeature>) source;
store.setTransaction(transaction);
try {
store.addFeatures(fc);
transaction.commit();
transaction.close();
} catch (Exception eek) {
try {
transaction.rollback();
} catch (IOException e) {
e.printStackTrace();
}
}
} else {
// read-only
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static FeatureCollection<SimpleFeatureType, SimpleFeature>
populate(SimpleFeatureType featureType, LineSegment[] lineSegments) {
FeatureCollection<SimpleFeatureType, SimpleFeature> collection =
FeatureCollections.newCollection();
try {
GeometryFactory gf = new GeometryFactory();
for (int i = 0; i < lineSegments.length; i++) {
LineString[] lsTemp = new LineString[1];
Coordinate c0 = lineSegments[i].p0;
Coordinate c1 = lineSegments[i].p1;
Coordinate[] coords = new Coordinate[2];
coords[0] = c0;
coords[1] = c1;
LineString ls = gf.createLineString(coords);
lsTemp[0] = ls;
MultiLineString line = gf.createMultiLineString(lsTemp);
collection.add(featureType.create(new Object[] { line
}));
}
return collection;
} catch (Exception iae) {
iae.printStackTrace();
return null;
}
}
--
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http://n2.nabble.com/WriteToShapefile-tp3403703p3403703.html
Sent from the geotools-gt2-users mailing list archive at Nabble.com.
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