本文整理了Java中com.vividsolutions.jts.geom.Polygon.getExteriorRing()方法的一些代码示例，展示了Polygon.getExteriorRing()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。Polygon.getExteriorRing()方法的具体详情如下：
包路径：com.vividsolutions.jts.geom.Polygon
类名称：Polygon
方法名：getExteriorRing

Polygon.getExteriorRing介绍

暂无

代码示例

代码示例来源：origin: opentripplanner/OpenTripPlanner

private Ring toRing(Polygon polygon, HashMap<Coordinate, OSMNode> nodeMap) {
  List<OSMNode> shell = new ArrayList<OSMNode>();
  for (Coordinate coord : polygon.getExteriorRing().getCoordinates()) {
    OSMNode node = nodeMap.get(coord);
    if (node == null) {
      throw new RingConstructionException();
    }
    shell.add(node);
  }
  Ring ring = new Ring(shell, true);
  // now the holes
  for (int i = 0; i < polygon.getNumInteriorRing(); ++i) {
    LineString interior = polygon.getInteriorRingN(i);
    List<OSMNode> hole = new ArrayList<OSMNode>();
    for (Coordinate coord : interior.getCoordinates()) {
      OSMNode node = nodeMap.get(coord);
      if (node == null) {
        throw new RingConstructionException();
      }
      hole.add(node);
    }
    ring.holes.add(new Ring(hole, true));
  }
  return ring;
}

代码示例来源：origin: osmandapp/Osmand

private static FeatureStats polyStats(Geometry geom) {
  final FeatureStats featureStats = new FeatureStats();
  for(int i = 0; i < geom.getNumGeometries(); ++i) {
    final Polygon nextPoly = (Polygon) geom.getGeometryN(i);
    // Stats: exterior ring
    final LineString exteriorRing = nextPoly.getExteriorRing();
    featureStats.totalPts += exteriorRing.getNumPoints();
    featureStats.repeatedPts += checkRepeatedPoints2d(exteriorRing);
    // Stats: interior rings
    for(int ringIndex = 0; ringIndex < nextPoly.getNumInteriorRing(); ++ringIndex) {
      final LineString nextInteriorRing = nextPoly.getInteriorRingN(ringIndex);
      featureStats.totalPts += nextInteriorRing.getNumPoints();
      featureStats.repeatedPts += checkRepeatedPoints2d(nextInteriorRing);
    }
  }
  return featureStats;
}

代码示例来源：origin: osmandapp/Osmand

final LineString exteriorRing = nextPoly.getExteriorRing();
for(int ringIndex = 0; ringIndex < nextPoly.getNumInteriorRing(); ++ringIndex) {
  final LineString nextInteriorRing = nextPoly.getInteriorRingN(ringIndex);

代码示例来源：origin: com.vividsolutions/jts

/**
 * Filters out all linework for polygonal elements
 */
public void filter(Geometry g)
{
  if (g instanceof Polygon) {
    Polygon poly = (Polygon) g;
    linework.add(poly.getExteriorRing());
    for (int i = 0; i < poly.getNumInteriorRing(); i++) {
      linework.add(poly.getInteriorRingN(i));
    }
  }
}

代码示例来源：origin: com.vividsolutions/jts

public static void computeDistance(Polygon poly, Coordinate pt, PointPairDistance ptDist)
 {
  computeDistance(poly.getExteriorRing(), pt, ptDist);
  for (int i = 0; i < poly.getNumInteriorRing(); i++) {
   computeDistance(poly.getInteriorRingN(i), pt, ptDist);
  }
 }
}

代码示例来源：origin: com.vividsolutions/jts

private void checkClosedRings(Polygon poly)
{
 checkClosedRing((LinearRing) poly.getExteriorRing());
 if (validErr != null) return;
 for (int i = 0; i < poly.getNumInteriorRing(); i++) {
  checkClosedRing((LinearRing) poly.getInteriorRingN(i));
  if (validErr != null) return;
 }
}

代码示例来源：origin: com.vividsolutions/jts

public boolean intersects(Coordinate intPt) {
  if (Location.EXTERIOR == locate(intPt, poly.getExteriorRing()))
    return false;
  
  for (int i = 0; i < poly.getNumInteriorRing(); i++) {
    if (Location.INTERIOR == locate(intPt, poly.getInteriorRingN(i)))
      return false;
  }
  return true;
}

代码示例来源：origin: com.vividsolutions/jts

public static void computeDistance(Polygon poly, Coordinate pt, PointPairDistance ptDist)
 {
  computeDistance(poly.getExteriorRing(), pt, ptDist);
  for (int i = 0; i < poly.getNumInteriorRing(); i++) {
   computeDistance(poly.getInteriorRingN(i), pt, ptDist);
  }
 }
}

代码示例来源：origin: com.vividsolutions/jts

private void addPolygon(Polygon p)
{
 addPolygonRing(
     (LinearRing) p.getExteriorRing(),
     Location.EXTERIOR,
     Location.INTERIOR);
 for (int i = 0; i < p.getNumInteriorRing(); i++) {
   LinearRing hole = (LinearRing) p.getInteriorRingN(i);
   
  // Holes are topologically labelled opposite to the shell, since
  // the interior of the polygon lies on their opposite side
  // (on the left, if the hole is oriented CW)
  addPolygonRing(
      hole,
    Location.INTERIOR,
    Location.EXTERIOR);
 }
}

代码示例来源：origin: com.vividsolutions/jts

public static boolean containsPointInPolygon(Coordinate p, Polygon poly)
{
 if (poly.isEmpty()) return false;
 LinearRing shell = (LinearRing) poly.getExteriorRing();
 if (! isPointInRing(p, shell)) return false;
 // now test if the point lies in or on the holes
 for (int i = 0; i < poly.getNumInteriorRing(); i++) {
  LinearRing hole = (LinearRing) poly.getInteriorRingN(i);
  if (isPointInRing(p, hole)) return false;
 }
 return true;
}

代码示例来源：origin: com.vividsolutions/jts

/**
 * Compute distance between a polygon and the rings of another.
 * 
 * @param poly
 * @param ringPoly
 * @param geomIndex
 */
private void computeMinDistancePolygonRings(PlanarPolygon3D poly, Polygon ringPoly,
    boolean flip) {
  // compute shell ring
  computeMinDistancePolygonLine(poly, ringPoly.getExteriorRing(), flip);
  if (isDone) return;
  // compute hole rings
  int nHole = ringPoly.getNumInteriorRing();
  for (int i = 0; i < nHole; i++) {
    computeMinDistancePolygonLine(poly, ringPoly.getInteriorRingN(i), flip);
    if (isDone) return;
  }
}

代码示例来源：origin: com.vividsolutions/jts

private int locate(Coordinate p, Polygon poly)
{
 if (poly.isEmpty()) return Location.EXTERIOR;
 LinearRing shell = (LinearRing) poly.getExteriorRing();
 int shellLoc = locateInPolygonRing(p, shell);
 if (shellLoc == Location.EXTERIOR) return Location.EXTERIOR;
 if (shellLoc == Location.BOUNDARY) return Location.BOUNDARY;
 // now test if the point lies in or on the holes
 for (int i = 0; i < poly.getNumInteriorRing(); i++) {
  LinearRing hole = (LinearRing) poly.getInteriorRingN(i);
  int holeLoc = locateInPolygonRing(p, hole);
  if (holeLoc == Location.INTERIOR) return Location.EXTERIOR;
  if (holeLoc == Location.BOUNDARY) return Location.BOUNDARY;
 }
 return Location.INTERIOR;
}

代码示例来源：origin: com.vividsolutions/jts

private void checkInvalidCoordinates(Polygon poly)
{
 checkInvalidCoordinates(poly.getExteriorRing().getCoordinates());
 if (validErr != null) return;
 for (int i = 0; i < poly.getNumInteriorRing(); i++) {
  checkInvalidCoordinates(poly.getInteriorRingN(i).getCoordinates());
  if (validErr != null) return;
 }
}

代码示例来源：origin: com.vividsolutions/jts

private void add(Polygon poly)
{
 addShell(poly.getExteriorRing().getCoordinates());
 for (int i = 0; i < poly.getNumInteriorRing(); i++) {
  addHole(poly.getInteriorRingN(i).getCoordinates());
 }
}

代码示例来源：origin: com.vividsolutions/jts

private boolean hasRepeatedPoint(Polygon p)
{
 if (hasRepeatedPoint(p.getExteriorRing().getCoordinates())) return true;
 for (int i = 0; i < p.getNumInteriorRing(); i++) {
  if (hasRepeatedPoint(p.getInteriorRingN(i).getCoordinates())) return true;
 }
 return false;
}
private boolean hasRepeatedPoint(GeometryCollection gc)

代码示例来源：origin: com.vividsolutions/jts

/**
 *  Converts a <code>Polygon</code> to &lt;Polygon Text&gt; format, then
 *  appends it to the writer.
 *
 *@param  polygon  the <code>Polygon</code> to process
 *@param  writer   the output writer to append to
 */
private void appendPolygonText(Polygon polygon, int level, boolean indentFirst, Writer writer)
 throws IOException
{
 if (polygon.isEmpty()) {
  writer.write("EMPTY");
 }
 else {
  if (indentFirst) indent(level, writer);
  writer.write("(");
  appendLineStringText(polygon.getExteriorRing(), level, false, writer);
  for (int i = 0; i < polygon.getNumInteriorRing(); i++) {
   writer.write(", ");
   appendLineStringText(polygon.getInteriorRingN(i), level + 1, true, writer);
  }
  writer.write(")");
 }
}

代码示例来源：origin: com.vividsolutions/jts

private Shape toShape(Polygon p) 
{
  PolygonShape poly = new PolygonShape();
  
  appendRing(poly, p.getExteriorRing().getCoordinates());
  for (int j = 0; j < p.getNumInteriorRing(); j++) {
   appendRing(poly, p.getInteriorRingN(j).getCoordinates());
  }
  return poly;
}

代码示例来源：origin: com.vividsolutions/jts

protected Geometry transformPolygon(Polygon geom, Geometry parent) {
 boolean isAllValidLinearRings = true;
 Geometry shell = transformLinearRing((LinearRing) geom.getExteriorRing(), geom);
 for (int i = 0; i < geom.getNumInteriorRing(); i++) {
  Geometry hole = transformLinearRing((LinearRing) geom.getInteriorRingN(i), geom);
  if (hole == null || hole.isEmpty()) {
   continue;

代码示例来源：origin: com.vividsolutions/jts

private void writePolygon(Polygon poly, OutStream os) throws IOException
{
 writeByteOrder(os);
 writeGeometryType(WKBConstants.wkbPolygon, poly, os);
 writeInt(poly.getNumInteriorRing() + 1, os);
 writeCoordinateSequence(poly.getExteriorRing().getCoordinateSequence(), true, os);
 for (int i = 0; i < poly.getNumInteriorRing(); i++) {
  writeCoordinateSequence(poly.getInteriorRingN(i).getCoordinateSequence(), true,
    os);
 }
}

代码示例来源：origin: com.vividsolutions/jts

private Polygon editPolygon(Polygon polygon,
              GeometryEditorOperation operation) {
 Polygon newPolygon = (Polygon) operation.edit(polygon, factory);
 // create one if needed
 if (newPolygon == null)
  newPolygon = factory.createPolygon((CoordinateSequence) null);
 if (newPolygon.isEmpty()) {
  //RemoveSelectedPlugIn relies on this behaviour. [Jon Aquino]
  return newPolygon;
 }
 LinearRing shell = (LinearRing) edit(newPolygon.getExteriorRing(), operation);
 if (shell == null || shell.isEmpty()) {
  //RemoveSelectedPlugIn relies on this behaviour. [Jon Aquino]
  return factory.createPolygon(null, null);
 }
 ArrayList holes = new ArrayList();
 for (int i = 0; i < newPolygon.getNumInteriorRing(); i++) {
  LinearRing hole = (LinearRing) edit(newPolygon.getInteriorRingN(i), operation);
  if (hole == null || hole.isEmpty()) {
   continue;
  }
  holes.add(hole);
 }
 return factory.createPolygon(shell,
                (LinearRing[]) holes.toArray(new LinearRing[] {  }));
}