在

javadocs(

unofficial)之后,你需要检查 – 使用instanceof – 每个特征是否是一个地标,如果是投射它并获得几何本身需要检查它是否是一个多边形,如果是,则投射到它.之后,坐标的路径如下(就像它在kml文件中一样)：

getOuterBoundaryIs > getlinearRing > getCoordinates

以下是代码中的样子：

@Test

public void parseKml() {

String src = "misctests/stackoverflow/kml/labasa.kml";

try(InputStream is = getClass().getClassLoader().getResourceAsStream(src)) {

Assert.assertNotNull(is);

Kml kml = Kml.unmarshal(is);

Feature feature = kml.getFeature();

parseFeature(feature);

}

}

private void parseFeature(Feature feature) {

if(feature != null) {

if(feature instanceof Document) {

Document document = (Document) feature;

List featureList = document.getFeature();

for(Feature documentFeature : featureList) {

if(documentFeature instanceof Placemark) {

Placemark placemark = (Placemark) documentFeature;

Geometry geometry = placemark.getGeometry();

parseGeometry(geometry);

}

}

}

}

}

private void parseGeometry(Geometry geometry) {

if(geometry != null) {

if(geometry instanceof Polygon) {

Polygon polygon = (Polygon) geometry;

Boundary outerBoundaryIs = polygon.getOuterBoundaryIs();

if(outerBoundaryIs != null) {

LinearRing linearRing = outerBoundaryIs.getLinearRing();

if(linearRing != null) {

List coordinates = linearRing.getCoordinates();

if(coordinates != null) {

for(Coordinate coordinate : coordinates) {

parseCoordinate(coordinate);

}

}

}

}

}

}

}

private void parseCoordinate(Coordinate coordinate) {

if(coordinate != null) {

System.out.println("Longitude: " + coordinate.getLongitude());

System.out.println("Latitude : " + coordinate.getLatitude());

System.out.println("Altitude : " + coordinate.getAltitude());

System.out.println("");

}

}