org.locationtech.jts.geom.GeometryFactory.createLineString()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.locationtech.jts.geom.GeometryFactory.createLineString()方法的一些代码示例，展示了GeometryFactory.createLineString()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。GeometryFactory.createLineString()方法的具体详情如下：
包路径：org.locationtech.jts.geom.GeometryFactory
类名称：GeometryFactory
方法名：createLineString

GeometryFactory.createLineString介绍

[英]Creates a LineString using the given CoordinateSequence. A null or empty CoordinateSequence creates an empty LineString.
[中]使用给定的坐标序列创建一个线条字符串。空或空的CoordinateSequence创建空的LineString。

代码示例

代码示例来源：origin: graphhopper/graphhopper

private Geometry lineStringFromEdges(List<Label.Transition> transitions) {
  List<Coordinate> coordinates = new ArrayList<>();
  final Iterator<Label.Transition> iterator = transitions.iterator();
  iterator.next();
  coordinates.addAll(toCoordinateArray(iterator.next().edge.edgeIteratorState.fetchWayGeometry(3)));
  iterator.forEachRemaining(transition -> coordinates.addAll(toCoordinateArray(transition.edge.edgeIteratorState.fetchWayGeometry(2))));
  return geometryFactory.createLineString(coordinates.toArray(new Coordinate[coordinates.size()]));
}

代码示例来源：origin: graphhopper/graphhopper

public Shape (GTFSFeed feed, String shape_id) {
    Map<Fun.Tuple2<String, Integer>, ShapePoint> points =
        feed.shape_points.subMap(new Fun.Tuple2(shape_id, null), new Fun.Tuple2(shape_id, Fun.HI));

    Coordinate[] coords = points.values().stream()
        .map(point -> new Coordinate(point.shape_pt_lon, point.shape_pt_lat))
        .toArray(i -> new Coordinate[i]);
    geometry = geometryFactory.createLineString(coords);
    shape_dist_traveled = points.values().stream().mapToDouble(point -> point.shape_dist_traveled).toArray();
  }
}

代码示例来源：origin: graphhopper/graphhopper

public LineString getStraightLineForStops(String trip_id) {
  CoordinateList coordinates = new CoordinateList();
  LineString ls = null;
  Trip trip = trips.get(trip_id);
  Iterable<StopTime> stopTimes;
  stopTimes = getOrderedStopTimesForTrip(trip.trip_id);
  if (Iterables.size(stopTimes) > 1) {
    for (StopTime stopTime : stopTimes) {
      Stop stop = stops.get(stopTime.stop_id);
      Double lat = stop.stop_lat;
      Double lon = stop.stop_lon;
      coordinates.add(new Coordinate(lon, lat));
    }
    ls = gf.createLineString(coordinates.toCoordinateArray());
  }
  // set ls equal to null if there is only one stopTime to avoid an exception when creating linestring
  else{
    ls = null;
  }
  return ls;
}

代码示例来源：origin: prestodb/presto

return GEOMETRY_FACTORY.createMultiLineString();
return GEOMETRY_FACTORY.createLineString();
lineStrings[i] = GEOMETRY_FACTORY.createLineString(readCoordinates(input, partLengths[i]));

代码示例来源：origin: graphhopper/graphhopper

public LineString toLineString(boolean includeElevation) {
  GeometryFactory gf = new GeometryFactory();
  Coordinate[] coordinates = new Coordinate[getSize() == 1 ? 2 : getSize()];
  for (int i = 0; i < getSize(); i++) {
    coordinates[i] = includeElevation ?
        new Coordinate(
            round6(getLongitude(i)),
            round6(getLatitude(i)),
            round2(getElevation(i))) :
        new Coordinate(
            round6(getLongitude(i)),
            round6(getLatitude(i)));
  }
  // special case as just 1 point is not supported in the specification #1412
  if (getSize() == 1)
    coordinates[1] = coordinates[0];
  return gf.createLineString(coordinates);
}

代码示例来源：origin: geotools/geotools

/**
 *
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 *
 * @generated modifiable
 */
public Object parse(ElementInstance instance, Node node, Object value) throws Exception {
  CoordinateSequence coordinates =
      (CoordinateSequence) node.getChildValue(KML.coordinates.getLocalPart());
  return geometryFactory.createLineString(coordinates);
}

代码示例来源：origin: org.elasticsearch/elasticsearch

static ArrayList<LineString> decomposeS4J(GeometryFactory factory, Coordinate[] coordinates, ArrayList<LineString> strings) {
  for(Coordinate[] part : decompose(+DATELINE, coordinates)) {
    for(Coordinate[] line : decompose(-DATELINE, part)) {
      strings.add(factory.createLineString(line));
    }
  }
  return strings;
}

代码示例来源：origin: geotools/geotools

private LineString parseLineString(int dimension, CoordinateReferenceSystem crs)
    throws XmlPullParserException, IOException, NoSuchAuthorityCodeException,
        FactoryException {
  parser.require(START_TAG, GML.NAMESPACE, GML.LineString.getLocalPart());
  crs = crs(crs);
  Coordinate[] coordinates = parseLineStringInternal(dimension, crs);
  parser.require(END_TAG, GML.NAMESPACE, GML.LineString.getLocalPart());
  LineString geom = geomFac.createLineString(coordinates);
  geom.setUserData(crs);
  return geom;
}

代码示例来源：origin: geotools/geotools

/**
 * Creates a LineString using a LiteCoordinateSequence with 2 3D coordinates.
 *
 * @return a 3D LineString
 */
public static LineString lineStringLite3D() {
  return liteGF.createLineString(liteCSF.create(new double[] {1, 2, 100, 3, 4, 200}, 3));
}

代码示例来源：origin: geotools/geotools

public static Geometry reverseGeometry(Geometry geom, boolean modify) {
  if (geom instanceof Point) return (geom);
  if (geom instanceof LineString) {
    Coordinate[] reversed = reverseCoordinates(geom.getCoordinates(), modify);
    if (modify) return (geom);
    else return (gf().createLineString(reversed));
  }
  return (null);
}

代码示例来源：origin: geotools/geotools

@Override
  public Geometry build(final int pointNode) throws CQLException {
    // Retrieve the linestirng points
    Stack<Coordinate> pointStack = popCoordinatesOf(pointNode);
    // now pointStack has the coordinate in the correct order
    // the next code creates the coordinate array used to create
    // the lineString
    Coordinate[] coordinates = asCoordinate(pointStack);
    LineString line = getGeometryFactory().createLineString(coordinates);

    return line;
  }
}

代码示例来源：origin: geotools/geotools

/**
 * Creates a line from the specified (<var>x</var>,<var>y</var>) coordinates. The coordinates
 * are stored in a flat array.
 */
public LineString line(int[] xy) {
  Coordinate[] coords = new Coordinate[xy.length / 2];
  for (int i = 0; i < xy.length; i += 2) {
    coords[i / 2] = new Coordinate(xy[i], xy[i + 1]);
  }
  return gf.createLineString(coords);
}

代码示例来源：origin: geotools/geotools

@Test
public void testCoordinateDimensionLineString1D() {
  Geometry geom =
      gf.createLineString(
          new Coordinate[] {
            new Coordinate(1, Coordinate.NULL_ORDINATE),
            new Coordinate(3, Coordinate.NULL_ORDINATE)
          });
  assertEquals(1, CoordinateSequences.coordinateDimension(geom));
}

代码示例来源：origin: geotools/geotools

public void testIntersectsFilterFunctionUnreferencedGeometry() throws Exception {
  GeometryFactory gf = new GeometryFactory();
  LineString ls =
      gf.createLineString(
          new Coordinate[] {new Coordinate(10, 15), new Coordinate(20, 25)});
  Function intersects = ff.function("intersects", ff.property("geom"), ff.literal(ls));
  Function clone = (Function) intersects.accept(reprojector, null);
  assertNotSame(intersects, clone);
  assertEquals(clone.getParameters().get(0), intersects.getParameters().get(0));
  assertEquals(clone.getParameters().get(1), intersects.getParameters().get(1));
}

代码示例来源：origin: geotools/geotools

@Test
public void testDecimate3DLine() throws Exception {
  LineString ls =
      gf.createLineString(
          csf.create(new double[] {0, 0, 1, 1, 2, 1, 3, 3, 4, 4, 5, 5}, 3));
  assertEquals(4, ls.getNumPoints());
  Decimator d = new Decimator(identity, new Rectangle(0, 0, 5, 5), 0.8);
  d.decimateTransformGeneralize(ls, identity);
  assertEquals(4, ls.getNumPoints());
  assertEquals(2, ls.getCoordinateSequence().getDimension());
}

代码示例来源：origin: geotools/geotools

public void testEncode3DLineFromLiteCS() throws Exception {
    LineStringEncoder encoder = new LineStringEncoder(gtEncoder, "gml", GML.NAMESPACE);
    LiteCoordinateSequence cs =
        new LiteCoordinateSequence(new double[] {0, 0, 50, 120, 0, 100}, 3);
    LineString geometry = new GeometryFactory().createLineString(cs);
    Document doc = encode(encoder, geometry);
    // print(doc);
    assertEquals("0 0 50 120 0 100", xpath.evaluate("//gml:posList", doc));
  }
}

代码示例来源：origin: geotools/geotools

public void testEncodeLineMFromLiteCSNoMeasuresEncoded() throws Exception {
  // create a linestring with M values and encode it in GML
  LiteCoordinateSequence cs =
      new LiteCoordinateSequence(new double[] {0, 1, -1.5, 3, 4, -2.5}, 3, 1);
  LineString geometry = new GeometryFactory().createLineString(cs);
  LineStringEncoder encoder = new LineStringEncoder(gtEncoder, "gml", GML.NAMESPACE);
  Document document = encode(encoder, geometry, false, "line");
  // check that we got the expected result
  XpathEngine xpath = XMLUnit.newXpathEngine();
  assertEquals("0 1 3 4", xpath.evaluate("//gml:posList", document));
}

代码示例来源：origin: geotools/geotools

public void testEncodeLineZMFromLiteCSNoMeasuresEncoded() throws Exception {
  // create a linestring with ZM values and encode it in GML 3.1
  LiteCoordinateSequence cs =
      new LiteCoordinateSequence(new double[] {0, 1, 10, -1.5, 3, 4, 15, -2.5}, 4, 1);
  LineString geometry = new GeometryFactory().createLineString(cs);
  LineStringEncoder encoder = new LineStringEncoder(gtEncoder, "gml", GML.NAMESPACE);
  Document document = encode(encoder, geometry, false, "line");
  // check that we got the expected result
  XpathEngine xpath = XMLUnit.newXpathEngine();
  assertEquals("0 1 10 3 4 15", xpath.evaluate("//gml:posList", document));
}

代码示例来源：origin: geotools/geotools

@Test
public void testDisjoint() {
  Coordinate[] coords = new Coordinate[] {new Coordinate(0, 0), new Coordinate(10, 10)};
  LineString lineString = new GeometryFactory().createLineString(coords);
  Filter filter = ff.disjoint(ff.property("name"), ff.literal(lineString));
  Envelope env = (Envelope) filter.accept(visitor, null);
  assertEquals(infinity, env);
}

代码示例来源：origin: geotools/geotools

public void testIntersectsUnreferencedGeometry() throws Exception {
  GeometryFactory gf = new GeometryFactory();
  LineString ls =
      gf.createLineString(
          new Coordinate[] {new Coordinate(10, 15), new Coordinate(20, 25)});
  // see if coordinates gets flipped, urn forces lat/lon interpretation
  Intersects original = ff.intersects(ff.property("geom"), ff.literal(ls));
  Filter clone = (Filter) original.accept(reprojector, null);
  assertNotSame(original, clone);
  assertEquals(original, clone);
}

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