Examples with Polygon org.locationtech.jts.geom.Polygon used on opensource projects

Example 36 with Polygon

use of org.locationtech.jts.geom.Polygon in project presto by prestodb.

the class JtsGeometrySerde method writePolygon.

private static void writePolygon(Geometry geometry, SliceOutput output, boolean multitype) {
    int numGeometries = geometry.getNumGeometries();
    int numParts = 0;
    int numPoints = geometry.getNumPoints();
    for (int i = 0; i < numGeometries; i++) {
        Polygon polygon = (Polygon) geometry.getGeometryN(i);
        if (polygon.getNumPoints() > 0) {
            numParts += polygon.getNumInteriorRing() + 1;
        }
    }
    if (multitype) {
        output.writeByte(GeometrySerializationType.MULTI_POLYGON.code());
    } else {
        output.writeByte(GeometrySerializationType.POLYGON.code());
    }
    output.writeInt(EsriShapeType.POLYGON.code);
    writeEnvelope(geometry, output);
    output.writeInt(numParts);
    output.writeInt(numPoints);
    if (numParts == 0) {
        return;
    }
    int[] partIndexes = new int[numParts];
    boolean[] shellPart = new boolean[numParts];
    int currentPart = 0;
    int currentPoint = 0;
    for (int i = 0; i < numGeometries; i++) {
        Polygon polygon = (Polygon) geometry.getGeometryN(i);
        partIndexes[currentPart] = currentPoint;
        shellPart[currentPart] = true;
        currentPart++;
        currentPoint += polygon.getExteriorRing().getNumPoints();
        int holesCount = polygon.getNumInteriorRing();
        for (int holeIndex = 0; holeIndex < holesCount; holeIndex++) {
            partIndexes[currentPart] = currentPoint;
            shellPart[currentPart] = false;
            currentPart++;
            currentPoint += polygon.getInteriorRingN(holeIndex).getNumPoints();
        }
    }
    for (int partIndex : partIndexes) {
        output.writeInt(partIndex);
    }
    Coordinate[] coordinates = geometry.getCoordinates();
    canonicalizePolygonCoordinates(coordinates, partIndexes, shellPart);
    writeCoordinates(coordinates, output);
}

Example 37 with Polygon

use of org.locationtech.jts.geom.Polygon in project arctic-sea by 52North.

the class GmlDecoderv321 method parseCompositeSurfaceType.

private Geometry parseCompositeSurfaceType(CompositeSurfaceType xbCompositeSurface) throws DecodingException {
    SurfacePropertyType[] xbCurfaceProperties = xbCompositeSurface.getSurfaceMemberArray();
    int srid = -1;
    ArrayList<Polygon> polygons = new ArrayList<>(xbCurfaceProperties.length);
    if (xbCompositeSurface.getSrsName() != null) {
        srid = CRSHelper.parseSrsName(xbCompositeSurface.getSrsName());
    }
    for (SurfacePropertyType xbSurfaceProperty : xbCurfaceProperties) {
        AbstractSurfaceType xbAbstractSurface = xbSurfaceProperty.getAbstractSurface();
        if (srid == -1 && xbAbstractSurface.getSrsName() != null) {
            srid = CRSHelper.parseSrsName(xbAbstractSurface.getSrsName());
        }
        if (xbAbstractSurface instanceof PolygonType) {
            polygons.add((Polygon) parsePolygonType((PolygonType) xbAbstractSurface));
        } else {
            throw new DecodingException("The FeatureType %s is not supportted! Only PolygonType", xbAbstractSurface);
        }
    }
    if (polygons.isEmpty()) {
        throw new DecodingException("The FeatureType: %s does not contain any member!", xbCompositeSurface);
    }
    srid = setDefaultForUnsetSrid(srid);
    GeometryFactory factory = new GeometryFactory();
    Geometry geom = factory.createMultiPolygon(polygons.toArray(new Polygon[polygons.size()]));
    geom.setSRID(srid);
    return geom;
}

Example 38 with Polygon

use of org.locationtech.jts.geom.Polygon in project dhis2-core by dhis2.

the class GeoUtils method checkPointWithMultiPolygon.

/**
 * Check if the point coordinate falls within the polygon/MultiPolygon Shape
 *
 * @param longitude the longitude.
 * @param latitude the latitude.
 * @param geometry the GeoJSON coordinates of the MultiPolygon
 */
public static boolean checkPointWithMultiPolygon(double longitude, double latitude, Geometry geometry) {
    try {
        boolean contains = false;
        Point point = getGeoJsonPoint(longitude, latitude);
        FeatureType featureType = FeatureType.getTypeFromName(geometry.getGeometryType());
        if (point != null && point.isValid()) {
            if (featureType == FeatureType.POLYGON) {
                Polygon polygon = (Polygon) geometry;
                contains = polygon.contains(point);
            } else if (featureType == FeatureType.MULTI_POLYGON) {
                MultiPolygon multiPolygon = (MultiPolygon) geometry;
                contains = multiPolygon.contains(point);
            }
        }
        return contains;
    } catch (Exception ex) {
        return false;
    }
}

Example 39 with Polygon

use of org.locationtech.jts.geom.Polygon in project yyl_example by Relucent.

the class JtsGeometryExample2 method withinGeo.

/**
 * 判断以x,y为坐标的点point(x,y)是否在geometry表示的Polygon中
 * @param x 坐标
 * @param y 坐标
 * @param 表达式
 * @return 是否包含
 */
public static boolean withinGeo(double x, double y, String geometry) throws ParseException {
    Coordinate coord = new Coordinate(x, y);
    Point point = GEOMETRY_FACTORY.createPoint(coord);
    WKTReader reader = new WKTReader(GEOMETRY_FACTORY);
    Polygon polygon = (Polygon) reader.read(geometry);
    return point.within(polygon);
}

Example 40 with Polygon

use of org.locationtech.jts.geom.Polygon in project yyl_example by Relucent.

the class JtsGeometryExample1 method createGeoCollect.

/**
 * create GeometryCollection contain point or multiPoint or line or multiLine or polygon or multiPolygon
 * @return 图形集
 * @throws ParseException
 */
public static GeometryCollection createGeoCollect() throws ParseException {
    LineString line = createLine();
    Polygon poly = createPolygonByWKT();
    Geometry g1 = GEOMETRY_FACTORY.createGeometry(line);
    Geometry g2 = GEOMETRY_FACTORY.createGeometry(poly);
    Geometry[] garray = new Geometry[] { g1, g2 };
    GeometryCollection gc = GEOMETRY_FACTORY.createGeometryCollection(garray);
    return gc;
}