Examples of com.vividsolutions.jts.geom.Geometry.buffer()

Class com.vividsolutions.jts.geom.Geometry

Examples of com.vividsolutions.jts.geom.Geometry.buffer()

com.vividsolutions.jts.geom.Geometry.buffer()
Computes a buffer area around this geometry having the given width. The buffer of a Geometry is the Minkowski sum or difference of the geometry with a disc of radius abs(distance).
Mathematically-exact buffer area boundaries can contain circular arcs. To represent these arcs using linear geometry they must be approximated with line segments. The buffer geometry is constructed using 8 segments per quadrant to approximate the circular arcs. The end cap style is CAP_ROUND.
The buffer operation always returns a polygonal result. The negative or zero-distance buffer of lines and points is always an empty {@link Polygon}. This is also the result for the buffers of degenerate (zero-area) polygons. @param distance the width of the buffer (may be positive, negative or 0) @return a polygonal geometry representing the buffer region (which may beempty) @throws TopologyException if a robustness error occurs @see #buffer(double,int) @see #buffer(double,int,int)

    }


    private static void WriteNodesInSubGraph(Subgraph subgraph, PrintWriter islandLog, boolean hadRemoved){
        Geometry convexHullGeom = subgraph.getConvexHull();
        if (convexHullGeom != null && !(convexHullGeom instanceof Polygon)) {
            convexHullGeom = convexHullGeom.buffer(0.0001,5);
        }
        islandLog.printf("%d\t%d\t%d\t%s\t%b\n", islandCounter, subgraph.stopSize(), 
                subgraph.streetSize(), convexHullGeom, hadRemoved);
        islandCounter++;
    }

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    @Override
    protected void processFeature(SimpleFeature feature, Map<String, Object> input) throws Exception {
       Double buffer = (Double) input.get( BufferFeatureCollectionFactory.BUFFER.key );
       
       Geometry g = (Geometry) feature.getDefaultGeometry();
       g = g.buffer( buffer );
       
       if(g instanceof Polygon) {
           g = g.getFactory().createMultiPolygon(new Polygon[] {(Polygon) g});
       }

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    {
      GeometryFactory gf = ((Polygon) polys.get(0)).getFactory();
      gfinal = new MultiPolygon((Polygon[]) polys.toArray( new Polygon[polys.size()]),   gf    );
    }
    
    gfinal = gfinal.buffer(0); // for topologic problems.
    
      
      Object[] values = new Object[5];
      values[ft.find("module")] = MODULE;
      values[ft.find("gen_full")] = gfinal;

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    static public Geometry bufferWithSegments(Geometry arg0, double arg1,
            int arg2) {
        Geometry _this = arg0;


        return _this.buffer(arg1, arg2);
    }


    static public Geometry buffer(Geometry arg0, double arg1) {
        Geometry _this = arg0;

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    }


    static public Geometry buffer(Geometry arg0, double arg1) {
        Geometry _this = arg0;


        return _this.buffer(arg1);
    }


    static public Geometry convexHull(Geometry arg0) {
        Geometry _this = arg0;

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    @Override
    protected void processFeature(SimpleFeature feature, Map<String, Object> input) throws Exception {
       Double buffer = (Double) input.get( BufferFeatureCollectionFactory.BUFFER.key );
       
       Geometry g = (Geometry) feature.getDefaultGeometry();
       g = g.buffer( buffer );
       
       if(g instanceof Polygon) {
           g = g.getFactory().createMultiPolygon(new Polygon[] {(Polygon) g});
       }

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     static public Geometry bufferWithSegments(Geometry arg0, Double arg1, Integer arg2)
     {
           if (arg0 == null || arg1 == null || arg2 == null) return null;
           Geometry _this = arg0;


           return _this.buffer(arg1,arg2);
     }


     static public Geometry buffer(Geometry arg0, Double arg1)
     {
           if (arg0 == null || arg1 == null) return null;

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     static public Geometry buffer(Geometry arg0, Double arg1)
     {
           if (arg0 == null || arg1 == null) return null;
           Geometry _this = arg0;


           return _this.buffer(arg1);
     }


     static public Geometry convexHull(Geometry arg0)
     {
           if (arg0 == null) return null;

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  private void doGeometryTestsOnResults(Envelope bbox, List<SpatialDatabaseRecord> results) {
    System.out.println("Found " + results.size() + " geometries in " + bbox);
    Geometry geometry = results.get(0).getGeometry();
    System.out.println("First geometry is " + geometry);
    geometry.buffer(2);
  }


}

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        null,
        Geometry.class);
    if (geom == null) {
      return infinity();
    }
    geom = geom.buffer(filter.getDistance());


    if (bbox != null) {
      return geom.union(bbox);
    }
    else {

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