本文整理匯總了Java中com.vividsolutions.jts.geom.Polygon.getExteriorRing方法的典型用法代碼示例。如果您正苦於以下問題：Java Polygon.getExteriorRing方法的具體用法？Java Polygon.getExteriorRing怎麽用？Java Polygon.getExteriorRing使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.vividsolutions.jts.geom.Polygon的用法示例。
在下文中一共展示了Polygon.getExteriorRing方法的8個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: polyStats
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
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;
}
示例2: toJSON
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
public static JSONArray toJSON(Polygon poly)
{
JSONArray coords = new JSONArray(1 + poly.getNumInteriorRing());
LineString shell = poly.getExteriorRing();
boolean inverse = shell.getNumPoints() > 1 ? !CoordinateSequences.isCCW(shell.getCoordinateSequence()) : false;
coords.put(toJSON(shell, inverse));
if (poly.getNumInteriorRing() > 0)
{
int nRings = poly.getNumInteriorRing();
for (int j = 0; j < nRings; ++j)
{
LineString ring = poly.getInteriorRingN(j);
inverse = ring.getNumPoints() > 1 ? CoordinateSequences.isCCW(ring.getCoordinateSequence()) : false;
coords.put(toJSON(ring, inverse));
}
}
return coords;
}
示例3: testNewPolygon
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
public void testNewPolygon() {
Polygon polygon = ShapeBuilders.newPolygon(new CoordinatesBuilder()
.coordinate(-45, 30)
.coordinate(45, 30)
.coordinate(45, -30)
.coordinate(-45, -30)
.coordinate(-45, 30)).toPolygon();
LineString exterior = polygon.getExteriorRing();
assertEquals(exterior.getCoordinateN(0), new Coordinate(-45, 30));
assertEquals(exterior.getCoordinateN(1), new Coordinate(45, 30));
assertEquals(exterior.getCoordinateN(2), new Coordinate(45, -30));
assertEquals(exterior.getCoordinateN(3), new Coordinate(-45, -30));
}
示例4: testNewPolygon_coordinate
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
public void testNewPolygon_coordinate() {
Polygon polygon = ShapeBuilders.newPolygon(new CoordinatesBuilder()
.coordinate(new Coordinate(-45, 30))
.coordinate(new Coordinate(45, 30))
.coordinate(new Coordinate(45, -30))
.coordinate(new Coordinate(-45, -30))
.coordinate(new Coordinate(-45, 30))).toPolygon();
LineString exterior = polygon.getExteriorRing();
assertEquals(exterior.getCoordinateN(0), new Coordinate(-45, 30));
assertEquals(exterior.getCoordinateN(1), new Coordinate(45, 30));
assertEquals(exterior.getCoordinateN(2), new Coordinate(45, -30));
assertEquals(exterior.getCoordinateN(3), new Coordinate(-45, -30));
}
示例5: testNewPolygon_coordinates
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
public void testNewPolygon_coordinates() {
Polygon polygon = ShapeBuilders.newPolygon(new CoordinatesBuilder()
.coordinates(new Coordinate(-45, 30), new Coordinate(45, 30), new Coordinate(45, -30), new Coordinate(-45, -30), new Coordinate(-45, 30))
).toPolygon();
LineString exterior = polygon.getExteriorRing();
assertEquals(exterior.getCoordinateN(0), new Coordinate(-45, 30));
assertEquals(exterior.getCoordinateN(1), new Coordinate(45, 30));
assertEquals(exterior.getCoordinateN(2), new Coordinate(45, -30));
assertEquals(exterior.getCoordinateN(3), new Coordinate(-45, -30));
}
示例6: smoothLineString
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
private static Geometry smoothLineString(GeometryFactory factory, GeometrySmoother smoother,
Geometry geom, double fit) {
if (geom instanceof LinearRing) {
// Treat as a Polygon
Polygon poly = factory.createPolygon((LinearRing) geom, null);
Polygon smoothed = smoother.smooth(poly, fit);
return smoothed.getExteriorRing();
} else {
return smoother.smooth((LineString) geom, fit);
}
}
示例7: removeCollinearVertices
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
/**
* Removes collinear vertices from the provided {@link Polygon}.
*
* @param polygon the instance of a {@link Polygon} to remove collinear vertices from.
* @return a new instance of the provided {@link Polygon} without collinear vertices.
*/
static Polygon removeCollinearVertices(final Polygon polygon) {
if (polygon == null) {
throw new NullPointerException("The provided Polygon is null");
}
// reuse existing factory
final GeometryFactory gf = polygon.getFactory();
// work on the exterior ring
LineString exterior = polygon.getExteriorRing();
LineString shell = removeCollinearVertices(exterior);
if ((shell == null) || shell.isEmpty()) {
return null;
}
// work on the holes
List<LineString> holes = new ArrayList<LineString>();
final int size = polygon.getNumInteriorRing();
for (int i = 0; i < size; i++) {
LineString hole = polygon.getInteriorRingN(i);
hole = removeCollinearVertices(hole);
if ((hole != null) && !hole.isEmpty()) {
holes.add(hole);
}
}
return gf.createPolygon((LinearRing) shell, holes.toArray(new LinearRing[holes.size()]));
}
示例8: copyConvexHullPoints
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
private void copyConvexHullPoints(Polygon poly)
{
LineString ring = (LineString)poly.getExteriorRing();
if (prevIsoPoints == null)
prevIsoPoints = new ArrayList<Coordinate>(ring.getNumPoints());
else
prevIsoPoints.clear();
for (int i = 0; i< ring.getNumPoints(); ++i)
{
Point p = ring.getPointN(i);
prevIsoPoints.add(new Coordinate(p.getX(), p.getY()));
}
}