Examples of org.opengis.feature.simple.SimpleFeature

org.opengis.feature.simple.SimpleFeature
An instance of {@link SimpleFeatureType} composed of fixed list values in a known order.
The definition of a "simple feature" can be summed up as the following:
- made up of only non-complex attributes, no associations
- attributes are of multiplicity 1
- attributes are ordered
- attribute names are unqualified (namespaceURI == null)
Attribute Access
The order and multiplicity restrictions on simple feature make attribute values accessible via an index. For example consider the following shapefile entry:
```
 | GEOMETRY   | INT | STRING | | POINT(0 0) |  0  | "zero" | 
```
Accessing attributes via index would look like:
```
 SimpleFeature feature = ...; Geometry g = (Geometry) feature.getAttribute( 0 ); Integer i = (Integer) feature.getAttribute( 1 ); String s = (String) feature.getAttribute( 2 ); 
```
One could also access by name:
```
 SimpleFeature feature = ...; Geometry g = (Geometry) feature.getAttribute( "GEOMETRY" ); Integer i = (Integer) feature.getAttribute( "INT" ); String s = (String) feature.getAttribute( "STRING" ); 
```
Note: Attribute access via getAttribute() methods returns attribute values, and not the attributes themselves. For access to the actual attributes {@link ComplexAttribute#getProperty(String)} can be used.
@see SimpleFeatureType @author Jody Garnett (LISAsoft) @author Justin Deoliveira (The Open Planning Project) @since 2.5 @version 8.0 @source $URL$

        //        
        // final SimpleFeature newFeature = SimpleFeatureBuilder.build(type, attrs, "newFeature"
        // + new Random().nextInt());


        String proposedFid = "newFeature"+"newFeature" + new Random().nextInt();
        final SimpleFeature newFeature = SimpleFeatureBuilder.template(type, proposedFid );


        Class geomType = type.getGeometryDescriptor().getType().getBinding();
        Geometry geom = GeometryBuilder.create().safeCreateGeometry(geomType, coordinates);
        newFeature.setDefaultGeometry(geom);
        fid = newFeature.getID();


        SimpleFeature feature = new AdaptableFeature(newFeature, editLayer);
        
        runFeatureCreationInterceptors(feature);


        map.getEditManagerInternal().addFeature(newFeature, (Layer) editLayer);
    }

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        transform(coordCRS, destinationCRS, coordinates);
        Object[] attrs = new Object[type.getAttributeCount()];
        for( int i = 0; i < attrs.length; i++ ) {
            attrs[i] = setDefaultValue(type.getDescriptor(i));
        }
        final SimpleFeature newFeature = SimpleFeatureBuilder.build(type,attrs,null);
        // Class geomType = type.getDefaultGeometry().getType();


        T geom = GeometryBuilder.create().safeCreateGeometry(geomType, coordinates);
        newFeature.setDefaultGeometry(geom);


        return newFeature;
    }

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                        return false;
                    }
                    public SimpleFeature next() {
                        if (next == null)
                            throw new IndexOutOfBoundsException("No more elements in iterator."); //$NON-NLS-1$
                        SimpleFeature result=next;
                        next=null;
                        return result;
                    }
                    public void remove() {
                        throw new UnsupportedOperationException();

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     * which matches the request.
     *
     * @param request
     */
    public void updateInfo( InfoRequest request ) {
        SimpleFeature selectedFeature = null;
        ILayer selectedLayer = null;


        for( int i = request.layers.size() - 1; i > -1; i-- ) {
            ILayer layer = request.layers.get(i); // navigate the list backwards

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                .getFeatures(filter);


        FeatureIterator<SimpleFeature> reader = results.features();
        try {
            while( reader.hasNext() ) {
                SimpleFeature f = reader.next();
                return f;
            }
        } finally {
            reader.close();
        }

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                !layer.getInteraction(Interaction.EDIT) 
                || !layer.isVisible() )
            return null;
        
        ILayer editLayer = context.getEditManager().getEditLayer();
        SimpleFeature editFeature=context.getEditManager().getEditFeature();
        String editFeatureID=null;
        if( editFeature!=null )
            editFeatureID=editFeature.getID();
        
        Envelope bbox = context.getBoundingBox(
                new java.awt.Point(centerPoint.getX(), centerPoint.getY()),
                PreferenceUtil.instance().getSnappingRadius() * 2);
        try {
            Coordinate tmp = context.pixelToWorld(centerPoint.getX(), centerPoint.getY());
            Coordinate layerCenter = JTS.transform(tmp, new Coordinate(), layer
                    .mapToLayerTransform());
            FeatureCollection<SimpleFeatureType, SimpleFeature>  features = context.getFeaturesInBbox(layer, bbox);
            FeatureIterator<SimpleFeature> iter = null;
            try {
                Coordinate closest = null;
                double minDist = Integer.MAX_VALUE;
                for( iter = features.features(); iter.hasNext(); ) {
                    SimpleFeature feature = iter.next();
                    if( feature.getID().equals(editFeatureID) && layer==editLayer )
                        continue;
                    Coordinate[] result = new Coordinate[1];
                    EditUtils.instance.getClosest((Geometry) feature.getDefaultGeometry(), layerCenter, result);
                    double x = layerCenter.x - result[0].x;
                    double y = layerCenter.y - result[0].y;
                    double distNew = Math.sqrt(x * x + y * y);


                    if (distNew < minDist) {

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    return Messages.PrecisionParallelReferenceFeature;
  }


  public void run(IProgressMonitor monitor) throws Exception {


    SimpleFeature feature = PrecisionToolsUtil.getFeatureUnderCursor(handler, event);
    // at this time, before running this commands it has checked there is a
    // feature under the cursor, so
    // this will return a feature.
    assert feature != null;

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            FeatureCollection<SimpleFeatureType, SimpleFeature>  features = featureSource.getFeatures(query);
            FeatureIterator<SimpleFeature> featureIterator = features.features();
            if (!featureIterator.hasNext()) {
                throw new IllegalStateException("At least one feature must be selected in the farm layer. "+features.size()+ " found.");
            }
            SimpleFeature selectedFarmFeature = featureIterator.next();
            String prov = (String)selectedFarmFeature.getAttribute(0);
            String id = (String)selectedFarmFeature.getAttribute(1);
            
            //put layer info on the mapgraphic's style blackboard
            URL detailsResId = new URL(null, "mapgraphic://localhost/mapgraphic#org.locationtech.udig.tutorial.mapgraphic.TitleArea", CorePlugin.RELAXED_HANDLER);
            IGeoResource detailsRes = localCatalog.getById(IGeoResource.class, new ID(detailsResId), new NullProgressMonitor());

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                        List<SimpleFeature> features = new ArrayList<SimpleFeature>();
                        for( Iterator iter = s.iterator(); iter.hasNext(); ) {
                            Object element = iter.next();


                            if (element instanceof SimpleFeature) {
                                SimpleFeature feature = (SimpleFeature) element;
                                features.add(feature);
                            }
                        }
                        if (features.size() == 0)
                            return;

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  public void changed(EditManagerEvent event) {
    int type = event.getType();
    if(type == EditManagerEvent.EDIT_FEATURE){
      
      EditGeom currentGeom = handler.getCurrentGeom();
      SimpleFeature newValue = (SimpleFeature) event.getNewValue();
      if( currentGeom==null && newValue!=null ){
        setCurrentGeom(newValue);
      } else if( currentGeom!=null && newValue==null ) {
        handler.setCurrentShape(null);
      } else {
        String fid = handler.getCurrentGeom().getFeatureIDRef().get();
        if( !fid.equals(newValue.getID()) ){
          setCurrentGeom(newValue);
        }
      }
    }

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Examples of org.opengis.feature.simple.SimpleFeature

Attribute Access

Related Classes of org.opengis.feature.simple.SimpleFeature