Die Methode hinzufügen (SimpleFeature) ist nicht definiert für den Typ SimpaleFeatureCollection

Question

Ich versuche, ein Programm für die Vektorisierung zu implementieren, wo ich folgende Kompilierungszeitfehler habe. Ich benutze GeoTools 14.4. Ich kopierte 2 Klassen RasterToVectorFactory.java und RasterToVectorProcess.java und der Rest ist mein GeoTiff 14,4-Code, wo ich unter Fehler haben

private SimpleFeatureCollection assembleFeatures(GridCoverage2D grid, int band, 
     boolean insideEdges, SimpleFeatureType type, ProgressListener monitor) { 
    if (monitor == null) { 
     monitor = new NullProgressListener(); 
    } 

    SimpleFeatureCollection features = FeatureCollections.newCollection(); 

    SimpleFeatureBuilder builder = new SimpleFeatureBuilder(type); 

    Point2D p = new Point2D.Double(); 
    double[] bandData = new double[grid.getNumSampleDimensions()]; 

    polygonizer.add(lines); 
    Collection polygons = polygonizer.getPolygons(); 
    final int size = polygons.size(); 
    try { 
     float progressScale = 100.0f/size; 
     monitor.started(); 

     int index = 0; 
     for (Iterator i = polygons.iterator(); i.hasNext(); index++) { 

      if (monitor.isCanceled()) { 
       throw new CancellationException(); 
      } 
      monitor.progress(progressScale * index); 

      Polygon poly = (Polygon) i.next(); 
      InteriorPointArea ipa = new InteriorPointArea(poly); 
      Coordinate c = ipa.getInteriorPoint(); 
      Point insidePt = geomFactory.createPoint(c); 

      if (!poly.contains(insidePt)) { 
       // try another method to generate an interior point 
       boolean found = false; 
       for (Coordinate ringC : poly.getExteriorRing().getCoordinates()) { 
        c.x = ringC.x + cellWidthX/2; 
        c.y = ringC.y; 
        insidePt = geomFactory.createPoint(c); 
        if (poly.contains(insidePt)) { 
         found = true; 
         break; 
        } 
       } 

       if (!found) { 
        throw new IllegalStateException("Can't locate interior point for polygon"); 
       } 
      } 

      p.setLocation(c.x, c.y); 
      bandData = grid.evaluate(p, bandData); 

      if (!isOutside(bandData[band])) { 
       builder.add(poly); 

       if (insideEdges) { 
        builder.add(bandData[band]); 
       } else { 
        builder.add(INSIDE_FLAG_VALUE); 
       } 
       features.add(builder.buildFeature(null)); 
       // here it gives error "The method add(SimpleFeature) is undefined for the type SimpaleFeatureCollection" 
      } 
     } 
     return features; 
    } finally { 
     monitor.complete(); 
    } 
} 

Der vollständige Quellcode ist here

Eigentlich.

Verfahren add (SimpleFeature) undefiniert ist für den Typ SimpaleFeatureCollection

Answer 1

ich versuchte folgenden Code als Behelfslösung verwenden.

Aber der Autor, der Code auf seiner Website zur Verfügung gestellt, sagt der Code wird nicht funktionieren !!

//features.add(builder.buildFeature(null)); 

//add 
System.out.println("adding..."); 
SimpleFeature feature = builder.buildFeature(null); 
((Collection<SimpleFeature>) features).add(feature); 

Answer 2

ändern Erklärung SimpleFeatureCollection zu DefaultFeatureCollection Klasse

DefaultFeatureCollection features = new DefaultFeatureCollection("your_id",type);