How to use

com.vividsolutions.jts.io.WKTWriter

constructor

/**
 *  Returns the Well-known Text representation of this <code>Geometry</code>.
 *  For a definition of the Well-known Text format, see the OpenGIS Simple
 *  Features Specification.
 *
 *@return    the Well-known Text representation of this <code>Geometry</code>
 */
public String toText() {
 WKTWriter writer = new WKTWriter();
 return writer.write(this);
}

/**
 * Test method for
 * {@link com.impetus.kundera.property.accessor.PointAccessor#toString(java.lang.Object)}
 * .
 */
@Test
public void testToStringObject()
{
  Point point = new Point(4.5, 6.3);
  String pointStr = pa.toString(point);
  WKTWriter writer = new WKTWriter();
  String wktStr = writer.write(point);
  Assert.assertEquals(wktStr, pointStr);
}

/**
 * Test method for
 * {@link com.impetus.kundera.property.accessor.PointAccessor#fromString(java.lang.Class, java.lang.String)}
 * .
 */
@Test
public void testFromString()
{
  Point point = new Point(4.5, 6.3);
  WKTWriter writer = new WKTWriter();
  String wktStr = writer.write(point);
  Point point2 = pa.fromString(com.vividsolutions.jts.geom.Point.class, wktStr);
  Assert.assertNotNull(point2);
  Assert.assertEquals(point.getX(), point2.getX());
  Assert.assertEquals(point.getY(), point2.getY());
}

public VocabWriterGeosparql() {
  this.wktWriter = new WKTWriter();
  this.property = GEOSPARQL.asWKT;//.getURI();
  this.datatype = GEOSPARQL.Geometry;//.getURI();
}

@Override
public void encodeGeometryValue(Geometry value, int srid, StringBuffer sql) throws IOException {
  sql.append("GeomFromText('") .append( new WKTWriter().write( value ) ).append( "',")
    .append(srid).append(")");
}

/**
 * 
 * @param geom JTS geometry representation
 * 
 * @return The WKT representation of the geometry
 * 
 * @throws ParseException error while creating the WKT
 */
public static String toWKT(Geometry geom) throws ParseException {
  WKTWriter wktWriter = new WKTWriter(); //TODO: consider use of GeometryFactory
  return wktWriter.write(geom);
}

  @Override
  public String format(Object value) {
    Point2D point = (Point2D) value;
    return new WKTWriter().write(geometryFactory.createPoint(new Coordinate(point.getX(), point.getY())));
  }
}

@Override
public String toString() {
  String ret = new WKTWriter().write(value);
  if (ret.endsWith(" EMPTY")) {
    // for DBs that do not support any other empty WKT
    ret = "GEOMETRYCOLLECTION EMPTY";
  }
  return ret;
}

@Override
public String toString() {
  String ret = new WKTWriter().write(value);
  if (ret.endsWith(" EMPTY")) {
    // for DBs that do not support any other empty WKT
    ret = "GEOMETRYCOLLECTION EMPTY";
  }
  return ret;
}

/**
 *  Returns the Well-known Text representation of this <code>Geometry</code>.
 *  For a definition of the Well-known Text format, see the OpenGIS Simple
 *  Features Specification.
 *
 *@return    the Well-known Text representation of this <code>Geometry</code>
 */
public String toText() {
 WKTWriter writer = new WKTWriter();
 return writer.write(this);
}

@Override
public String format(Geometry value) {
  if (value == null) {
    return "";
  }
  return new WKTWriter().write(value);
}

  @Override
  public String format(Object value) {
    Point2D point = (Point2D) value;
    return new WKTWriter().write(geometryFactory.createPoint(new Coordinate(point.getX(), point.getY())));
  }
}

  /**
   * Convert a Geometry value into a Well Known Text value.
   * @param geometry Geometry instance
   * @return The String representation
   */
  public static String asWKT(Geometry geometry) {
    if(geometry==null) {
      return null;
    }
    WKTWriter wktWriter = new WKTWriter();
    return wktWriter.write(geometry);
  }
}

@Override
public InputStream generateStream(IData data, String mimeType, String schema)
    throws IOException {
  
  if(data instanceof JTSGeometryBinding){
    Geometry g = ((JTSGeometryBinding)data).getPayload();
    
    String wktString = new WKTWriter().write(g);
    
    InputStream is = new ByteArrayInputStream(wktString.getBytes());
    
    return is;
  }
  
  return null;
}

/**
 * Get the value in Well-Known-Text format.
 *
 * @return the well-known-text
 */
public String getWKT() {
  return new WKTWriter(3).write(getGeometryNoCopy());
}

 @Override
 public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
  return Str.get(new WKTWriter().write(checkGeo(0, qc)));
 }
}

  @Override
  public String convert(final Polygon polygon)
  {
    final Geometry geometry = new JtsPolygonConverter().convert(polygon);
    return new WKTWriter().write(geometry);
  }
}

  @Override
  public String convert(final Location location)
  {
    final Geometry geometry = new JtsPointConverter().convert(location);
    final String wkt = new WKTWriter().write(geometry);
    return wkt;
  }
}

  @Override
  public String convert(final MultiPolyLine multiPolyLine)
  {
    final MultiLineString geometry = new JtsMultiPolyLineConverter().convert(multiPolyLine);
    return new WKTWriter().write(geometry);
  }
}

  private void testParsing(Geometry expectedGeometry) throws ConversionException {
    final WKTWriter wktWriter = new WKTWriter();
    final String geometryWkt = wktWriter.write(expectedGeometry);
    final Geometry geometry = converter.parse(geometryWkt);
    assertTrue(expectedGeometry.equalsExact(geometry));

    assertEquals(null, converter.parse(""));
  }
}