本文整理匯總了Java中com.vividsolutions.jts.geom.Polygon.getInteriorRingN方法的典型用法代碼示例。如果您正苦於以下問題：Java Polygon.getInteriorRingN方法的具體用法？Java Polygon.getInteriorRingN怎麽用？Java Polygon.getInteriorRingN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.getInteriorRingN方法的4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: 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4: getArea
import com.vividsolutions.jts.geom.Polygon; //導入方法依賴的package包/類
public static double getArea(Geometry geom, Boolean inMeters) throws Exception
{
if (inMeters) {
if (geom instanceof Polygon)
{
Polygon poly = (Polygon) geom;
double area = Math.abs(getSignedArea(poly.getExteriorRing().getCoordinateSequence()));
for (int i = 0; i < poly.getNumInteriorRing(); i++) {
LineString hole = poly.getInteriorRingN(i);
area -= Math.abs(getSignedArea(hole.getCoordinateSequence()));
}
return area;
}
else if (geom instanceof LineString)
{
LineString ring = (LineString)geom;
return getSignedArea(ring.getCoordinateSequence());
}
else
{
if (TRANSFORM_WGS84_SPHERICALMERCATOR == null) {
String wkt = "PROJCS[\"WGS 84 / Pseudo-Mercator\",GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]],PROJECTION[\"Mercator_1SP\"],PARAMETER[\"central_meridian\",0],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],AUTHORITY[\"EPSG\",\"3857\"]]";
CoordinateReferenceSystem crs = CRS.parseWKT(wkt);// CRS.decode("EPSG:3857");
TRANSFORM_WGS84_SPHERICALMERCATOR = CRS.findMathTransform(DefaultGeographicCRS.WGS84, crs, true);
}
Geometry transformedGeometry = JTS.transform(geom, TRANSFORM_WGS84_SPHERICALMERCATOR);
return transformedGeometry.getArea();
}
} else {
return geom.getArea();
}
}