com.vividsolutions.jts.geom.GeometryFactory类的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中com.vividsolutions.jts.geom.GeometryFactory类的一些代码示例，展示了GeometryFactory类的具体用法。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类的具体详情如下：
包路径：com.vividsolutions.jts.geom.GeometryFactory
类名称：GeometryFactory

GeometryFactory介绍

[英]Supplies a set of utility methods for building Geometry objects from lists of Coordinates.

Note that the factory constructor methods do not change the input coordinates in any way. In particular, they are not rounded to the supplied PrecisionModel. It is assumed that input Coordinates meet the given precision.
[中]提供一组实用方法，用于从坐标列表中构建几何体对象。
请注意，工厂构造函数方法不会以任何方式更改输入坐标。特别是，它们没有四舍五入到提供的PrecisionModel。假设输入坐标满足给定精度。

代码示例

代码示例来源：origin: opentripplanner/OpenTripPlanner

private SimpleFeatureCollection makePointFeatures() throws Exception {
  Map<Vertex, Double> points = makePoints();
  /* Stage the point features in memory */
  DefaultFeatureCollection featureCollection = new DefaultFeatureCollection(null, pointSchema);
  SimpleFeatureBuilder fbuilder = new SimpleFeatureBuilder(pointSchema);
  GeometryFactory gf = new GeometryFactory();
  for (Map.Entry<Vertex, Double> entry : points.entrySet()) {
    Vertex vertex = entry.getKey();
    Double travelTime = entry.getValue();
    fbuilder.add(gf.createPoint(vertex.getCoordinate()));
    fbuilder.add(travelTime);
    featureCollection.add(fbuilder.buildFeature(null));
  }
  return featureCollection;
}

代码示例来源：origin: opentripplanner/OpenTripPlanner

if (geoJsonGeom instanceof org.geojson.Point) {
  org.geojson.Point geoJsonPoint = (org.geojson.Point) geoJsonGeom;
  return gf.createPoint(new Coordinate(geoJsonPoint.getCoordinates().getLongitude(), geoJsonPoint
      .getCoordinates().getLatitude()));
  LinearRing shell = gf.createLinearRing(convertPath(geoJsonPolygon.getExteriorRing()));
  LinearRing[] holes = new LinearRing[geoJsonPolygon.getInteriorRings().size()];
  int i = 0;
  for (List<LngLatAlt> hole : geoJsonPolygon.getInteriorRings()) {
    holes[i++] = gf.createLinearRing(convertPath(hole));
  return gf.createPolygon(shell, holes);
    jtsPolygons[i++] = (Polygon) convertGeoJsonToJtsGeometry(geoJsonPoly);
  return gf.createMultiPolygon(jtsPolygons);
  return gf.createLineString(convertPath(geoJsonLineString.getCoordinates()));
    jtsLineStrings[i++] = (LineString) convertGeoJsonToJtsGeometry(geoJsonLineString);
  return gf.createMultiLineString(jtsLineStrings);

代码示例来源：origin: osmandapp/Osmand

final CoordinateSequence coordSeq = geomFactory.getCoordinateSequenceFactory().create(cmdLength, 2);
int coordIndex = 0;
Coordinate nextCoord;
  nextCoord.setOrdinate(0, cursor.x);
  nextCoord.setOrdinate(1, cursor.y);
return coordSeq.size() == 1 ? geomFactory.createPoint(coordSeq) : geomFactory.createMultiPoint(coordSeq);

代码示例来源：origin: opentripplanner/OpenTripPlanner

/**
 * Creates a circle shape, using the JTS buffer algorithm. The method is used when there is no street found within the given traveltime, e.g. when
 * the pointer is placed on a field or in the woods.<br>
 * TODO: Note it is actually not correct to do buffer calculation in Euclidian 2D, since the resulting shape will be elliptical when projected.
 * 
 * @param dropPoint the location given by the user
 * @param pathToStreet the path from the dropPoint to the street, used to retrieve the buffer distance
 * @return a Circle
 */
private Geometry createCirle(Coordinate dropPoint, LineString pathToStreet) {
  double length = pathToStreet.getLength();
  GeometryFactory gf = new GeometryFactory();
  Point dp = gf.createPoint(dropPoint);
  Geometry buffer = dp.buffer(length);
  return buffer;
}

代码示例来源：origin: stackoverflow.com

final GeometryFactory gf = new GeometryFactory();
points.add(new Coordinate(-10, -10));
points.add(new Coordinate(-10, 10));
points.add(new Coordinate(10, 10));
points.add(new Coordinate(10, -10));
points.add(new Coordinate(-10, -10));
final Polygon polygon = gf.createPolygon(new LinearRing(new CoordinateArraySequence(points
  .toArray(new Coordinate[points.size()])), gf), null);
final Coordinate coord = new Coordinate(0, 0);
final Point point = gf.createPoint(coord);

代码示例来源：origin: org.geoserver.extension/wps-core

public void testExecutePoint() throws Exception {
  SimpleFeatureTypeBuilder tb = new SimpleFeatureTypeBuilder();
  tb.setName("featureType");
  tb.add("geometry", Geometry.class);
  tb.add("integer", Integer.class);
  GeometryFactory gf = new GeometryFactory();
  SimpleFeatureBuilder b = new SimpleFeatureBuilder(tb.buildFeatureType());
  DefaultFeatureCollection features = new DefaultFeatureCollection(null, b.getFeatureType());
  for (int i = 0; i < 2; i++) {
    b.add(gf.createPoint(new Coordinate(i, i)));
    b.add(i);
    features.add(b.buildFeature(i + ""));
  }
  Double distance = new Double(500);
  BufferFeatureCollection process = new BufferFeatureCollection();
  SimpleFeatureCollection output = process.execute(features, distance, null);
  assertEquals(2, output.size());
  SimpleFeatureIterator iterator = output.features();
  for (int i = 0; i < 2; i++) {
    Geometry expected = gf.createPoint(new Coordinate(i, i)).buffer(distance);
    SimpleFeature sf = iterator.next();
    assertTrue(expected.equals((Geometry) sf.getDefaultGeometry()));
  }
}

代码示例来源：origin: matsim-org/matsim

@Test
public void testShapeFileWriterWithSelfCreatedContent() throws IOException {
  String outFile = utils.getOutputDirectory() + "/test.shp"; 
  SimpleFeatureTypeBuilder b = new SimpleFeatureTypeBuilder();
  b.setName("EvacuationArea");
  b.setCRS(DefaultGeographicCRS.WGS84);
  b.add("the_geom", MultiPolygon.class);
  b.add("name", String.class);
  SimpleFeatureType ft = b.buildFeatureType();
  GeometryFactory geofac = new GeometryFactory();
  LinearRing lr = geofac.createLinearRing(new Coordinate[]{new Coordinate(0,0),new Coordinate(0,1),new Coordinate(1,1),new Coordinate(0,0)});
  Polygon p = geofac.createPolygon(lr,null);
  MultiPolygon mp = geofac.createMultiPolygon(new Polygon[]{p});		
  Collection<SimpleFeature> features = new ArrayList<SimpleFeature>();
  features.add(SimpleFeatureBuilder.build(ft, new Object[]{mp,"test_name"},"fid"));
  Geometry g0 = (Geometry) features.iterator().next().getDefaultGeometry();
  SimpleFeatureIterator it1 = fts1.features();
  SimpleFeature ft1 = it1.next();
  Geometry g1 = (Geometry) ft1.getDefaultGeometry();
  Assert.assertEquals(g0.getCoordinates().length, g1.getCoordinates().length);

代码示例来源：origin: org.geotools/gt-main

public void testBounds() throws Exception {
  PrecisionModel pm = new PrecisionModel();
  Geometry[] g = new Geometry[4];
  GeometryFactory gf = new GeometryFactory(pm);
  g[0] = gf.createPoint(new Coordinate(0, 0));
  g[1] = gf.createPoint(new Coordinate(0, 10));
  g[2] = gf.createPoint(new Coordinate(10, 0));
  g[3] = gf.createPoint(new Coordinate(10, 10));
  GeometryCollection gc = gf.createGeometryCollection(g);
  SimpleFeatureTypeBuilder tb = new SimpleFeatureTypeBuilder();
  tb.setName("bounds");
  tb.setCRS(null);
  tb.add("p1", Point.class);
  SimpleFeatureType t = tb.buildFeatureType();
  SimpleFeatureCollection fc = FeatureCollections.newCollection();
  SimpleFeatureBuilder b = new SimpleFeatureBuilder(t);
  for (int i = 0; i < g.length; i++) {
    b.add(g[i]);
    fc.add(b.buildFeature(null));
  }
  assertEquals(gc.getEnvelopeInternal(), fc.getBounds());
}

代码示例来源：origin: com.vividsolutions/jts

if (envelope.isNull()) {
 return createPoint((CoordinateSequence)null);
if (envelope.getMinX() == envelope.getMaxX() && envelope.getMinY() == envelope.getMaxY()) {
 return createPoint(new Coordinate(envelope.getMinX(), envelope.getMinY()));
if (envelope.getMinX() == envelope.getMaxX()
    || envelope.getMinY() == envelope.getMaxY()) {
  return createLineString(new Coordinate[]{
   new Coordinate(envelope.getMinX(), envelope.getMinY()),
   new Coordinate(envelope.getMaxX(), envelope.getMaxY())
   });
return createPolygon(createLinearRing(new Coordinate[]{
  new Coordinate(envelope.getMinX(), envelope.getMinY()),
  new Coordinate(envelope.getMinX(), envelope.getMaxY()),

代码示例来源：origin: org.geoserver.script/gs-script-js

public void testBuffer() {
  SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
  builder.setCRS(null);
  builder.add("geometry", Polygon.class);
  builder.add("distance", Float.class);
  builder.setName("schema");
  coords[0] = new Coordinate(0, 0);
  coords[1] = new Coordinate(10, 0);
  coords[2] = new Coordinate(10, 10);
  coords[3] = new Coordinate(0, 10);
  coords[4] = new Coordinate(0, 0);
  GeometryFactory gf = new GeometryFactory(new PrecisionModel());
  LinearRing ring = gf.createLinearRing(coords);
  attributes[0] = gf.createPolygon(ring, null);
  attributes[1] = new Float(100.0);
  SimpleFeature feature = SimpleFeatureBuilder.build(schema, attributes, null);
  Object result = buffer.evaluate(feature);
  assertTrue(result instanceof Polygon);
  assertTrue(((Polygon) result).getArea() > 35314);

代码示例来源：origin: com.vividsolutions/jts

/**
 * Creates an elliptical {@link Polygon}.
 * If the supplied envelope is square the 
 * result will be a circle. 
 *
 * @return an ellipse or circle
 */
public Polygon createEllipse()
{
 Envelope env = dim.getEnvelope();
 double xRadius = env.getWidth() / 2.0;
 double yRadius = env.getHeight() / 2.0;
 double centreX = env.getMinX() + xRadius;
 double centreY = env.getMinY() + yRadius;
 Coordinate[] pts = new Coordinate[nPts + 1];
 int iPt = 0;
 for (int i = 0; i < nPts; i++) {
   double ang = i * (2 * Math.PI / nPts);
   double x = xRadius * Math.cos(ang) + centreX;
   double y = yRadius * Math.sin(ang) + centreY;
   pts[iPt++] = coord(x, y);
 }
 pts[iPt] = new Coordinate(pts[0]);
 LinearRing ring = geomFact.createLinearRing(pts);
 Polygon poly = geomFact.createPolygon(ring, null);
 return (Polygon) rotate(poly);
}
/**

代码示例来源：origin: opentripplanner/OpenTripPlanner

GeometryFactory gf = new GeometryFactory();
Coordinate dropPoint = new Coordinate(lon, lat);
pathToStreetCoords[0] = dropPoint;
pathToStreetCoords[1] = origin.getCoordinate();
LineString pathToStreet = gf.createLineString(pathToStreetCoords);
    geometryJSON.write(gf.createMultiPoint(coords), sw);
    LOG.debug("done");
  } else if (output.equals(SIsochrone.RESULT_TYPE_SHED)) {
        geomsArray = new Geometry[coords.length];
        for (int j = 0; j < geomsArray.length; j++) {
          geomsArray[j] = gf.createPoint(coords[j]);
      GeometryCollection gc = gf.createGeometryCollection(geomsArray);
        edges[k++] = ls;
      LOG.debug("create multilinestring from {} geoms", edges.length);
      mls = gf.createMultiLineString(edges);
      LOG.debug("write geom");
      geometryJSON.write(mls, sw);
    Geometry mls = gf.createMultiLineString(edges);
    LOG.debug("write debug geom");
    geometryJSON.write(mls, sw);

代码示例来源：origin: stackoverflow.com

SimpleFeatureTypeBuilder b = new SimpleFeatureTypeBuilder();
b.setName( "LineFeature" );
b.setCRS( DefaultGeographicCRS.WGS84 ); // set crs first
b.add( "line", LineString.class ); // then add geometry
double lonEnd = 9.4;
coordinates[0] = new Coordinate(lonStart, latStart);
coordinates[1] = new Coordinate(lonEnd, latEnd);
LineString line = gFac.createLineString(coordinates );
featureBuilderLines.add(line);
SimpleFeature featureLine = featureBuilderLines.buildFeature(null);
collectionLines.add(featureLine);

代码示例来源：origin: com.vividsolutions/jts

int nSide = nPts / 4;
if (nSide < 1) nSide = 1;
double XsegLen = dim.getEnvelope().getWidth() / nSide;
double YsegLen = dim.getEnvelope().getHeight() / nSide;
 double x = env.getMinX() + i * XsegLen;
 double y = env.getMinY();
 pts[ipt++] = coord(x, y);
 pts[ipt++] = coord(x, y);
pts[ipt++] = new Coordinate(pts[0]);
LinearRing ring = geomFact.createLinearRing(pts);
Polygon poly = geomFact.createPolygon(ring, null);
return (Polygon) rotate(poly);

代码示例来源：origin: matsim-org/matsim

public SimpleFeature createPoint(final Coord coordinate, final Object[] attributeValues, final String id) {
  Point p = this.fac.createPoint(new Coordinate(coordinate.getX(), coordinate.getY()));
  
  this.builder.add(p);
  for (int i = 0; i < attributeValues.length; i++) {
    Object value = attributeValues[i];
    this.builder.add(value);
  }
  return this.builder.buildFeature(id);
}

代码示例来源：origin: org.hibernatespatial/hibernate-spatial

static public Polygon toPolygon(Envelope env, int SRID) {
  Coordinate[] coords = new Coordinate[5];
  coords[0] = new Coordinate(env.getMinX(), env.getMinY());
  coords[1] = new Coordinate(env.getMinX(), env.getMaxY());
  coords[2] = new Coordinate(env.getMaxX(), env.getMaxY());
  coords[3] = new Coordinate(env.getMaxX(), env.getMinY());
  coords[4] = new Coordinate(env.getMinX(), env.getMinY());
  LinearRing shell = geomFactory.createLinearRing(coords);
  Polygon pg = geomFactory.createPolygon(shell, null);
  pg.setSRID(SRID);
  return pg;
}

代码示例来源：origin: com.vividsolutions/jts

protected LineString horizontalBisector(Geometry geometry) {
 Envelope envelope = geometry.getEnvelopeInternal();
 // Assert: for areas, minx <> maxx
 double avgY = avg(envelope.getMinY(), envelope.getMaxY());
 return factory.createLineString(new Coordinate[] {
     new Coordinate(envelope.getMinX(), avgY),
     new Coordinate(envelope.getMaxX(), avgY)
   });
}

代码示例来源：origin: opentripplanner/OpenTripPlanner

GeometryFactory geomFactory = new GeometryFactory();
    Coordinate[] coordinates = new Coordinate[] { edge.getFromVertex().getCoordinate(),
        edge.getToVertex().getCoordinate() };
    edgeGeom = GeometryUtils.getGeometryFactory().createLineString(coordinates);
    hasGeom = false;
  OffsetCurveBuilder offsetBuilder = new OffsetCurveBuilder(new PrecisionModel(),
      bufParams);
  Coordinate[] coords = offsetBuilder.getOffsetCurve(midLineGeom.getCoordinates(),
      lineWidth * 0.4);
  if (coords.length < 2)
    continue; // Can happen for very small edges (<1mm)
  LineString offsetLine = geomFactory.createLineString(coords);
  Shape midLineShape = shapeWriter.toShape(midLineGeom);
  Shape offsetShape = shapeWriter.toShape(offsetLine);
  vvAttrs.color = null;
  vvAttrs.label = null;
  Point point = geomFactory.createPoint(new Coordinate(vertex.getLon(), vertex.getLat()));
  boolean render = evRenderer.renderVertex(vertex, vvAttrs);
  if (!render)
  context.graphics.draw(shape);
  if (vvAttrs.label != null && lineWidth > 6.0f
      && context.bbox.contains(point.getCoordinate())) {
    context.graphics.setColor(Color.BLACK);
    int labelWidth = largeFontMetrics.stringWidth(vvAttrs.label);

代码示例来源：origin: bcdev/beam

@Test
  public void testCreatePlainFeature() {
    SimpleFeatureType sft = PlainFeatureFactory.createPlainFeatureType("MyPoint",
                                      Point.class,
                                      DefaultGeographicCRS.WGS84);

    final GeometryFactory gf = new GeometryFactory();
    final Point point = gf.createPoint(new Coordinate(0.5, 0.6));

    final SimpleFeature feature1 = PlainFeatureFactory.createPlainFeature(sft, "_1", point, "fill:#0033AA");

    assertEquals("_1", feature1.getID());
    assertEquals(point, feature1.getDefaultGeometry());
    assertEquals(point, feature1.getAttribute(PlainFeatureFactory.ATTRIB_NAME_GEOMETRY));
    assertEquals("fill:#0033AA", feature1.getAttribute(PlainFeatureFactory.ATTRIB_NAME_STYLE_CSS));

    SimpleFeature feature2 = PlainFeatureFactory.createPlainFeature(sft, "_2", null, "fill:#0033AA");
    assertNotNull(feature2.getDefaultGeometry());
    assertTrue(gf.createPoint(new Coordinate()).compareTo(feature2.getDefaultGeometry()) == 0);

    final SimpleFeature feature3 = PlainFeatureFactory.createPlainFeature(sft, "_3", point, null);
    assertEquals(null, feature3.getAttribute(PlainFeatureFactory.ATTRIB_NAME_STYLE_CSS));
  }
}

代码示例来源：origin: opentripplanner/OpenTripPlanner

@Override
public String resolve(double x, double y) {
  System.out.println("x="+x+", y="+y);
  FeatureIterator<Feature> iterator = collection.features();
  while( iterator.hasNext() ){
     SimpleFeature feature = (SimpleFeature) iterator.next();
     Geometry geom = (Geometry) feature.getDefaultGeometry();
          GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory();             
     Coordinate coord = new Coordinate(x, y);
     Point point = geometryFactory.createPoint(coord);
          //System.out.println("checking "+point.toString());
     if(geom.contains(point)) {
       return feature.getAttribute(this.nameField).toString();
     }
  }
  return null;
      
  
}

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