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

Example 71 with Polygon

use of org.locationtech.jts.geom.Polygon in project pigeon by aseldawy.

the class Break method breakGeom.

private void breakGeom(Geometry geom, Vector<Coordinate[]> segments) {
    if (geom == null)
        return;
    if (geom instanceof LineString) {
        LineString linestring = (LineString) geom;
        Coordinate[] coordinates = linestring.getCoordinates();
        for (int i = 1; i < coordinates.length; i++) {
            Coordinate[] segment = new Coordinate[2];
            segment[0] = new Coordinate(coordinates[i - 1]);
            segment[1] = new Coordinate(coordinates[i]);
            segments.add(segment);
        }
    } else if (geom instanceof Polygon) {
        Polygon polygon = (Polygon) geom;
        breakGeom(polygon.getExteriorRing(), segments);
        for (int n = 0; n < polygon.getNumInteriorRing(); n++) {
            breakGeom(polygon.getInteriorRingN(n), segments);
        }
    } else if (geom instanceof GeometryCollection) {
        GeometryCollection geomCollection = (GeometryCollection) geom;
        for (int n = 0; n < geomCollection.getNumGeometries(); n++) {
            breakGeom(geomCollection.getGeometryN(n), segments);
        }
    } else if (geom instanceof Point) {
    // Skip
    } else {
        throw new RuntimeException("Cannot break geometry of type " + geom.getClass());
    }
}

Example 72 with Polygon

use of org.locationtech.jts.geom.Polygon in project pigeon by aseldawy.

the class MakeBox method exec.

@Override
public DataByteArray exec(Tuple input) throws IOException {
    if (input.size() != 4)
        throw new GeoException("MakeBox takes four numerical arguments");
    double x1 = ESRIGeometryParser.parseDouble(input.get(0));
    double y1 = ESRIGeometryParser.parseDouble(input.get(1));
    double x2 = ESRIGeometryParser.parseDouble(input.get(2));
    double y2 = ESRIGeometryParser.parseDouble(input.get(3));
    Coordinate[] corners = new Coordinate[5];
    corners[0] = new Coordinate(x1, y1);
    corners[1] = new Coordinate(x1, y2);
    corners[2] = new Coordinate(x2, y2);
    corners[3] = new Coordinate(x2, y1);
    corners[4] = corners[0];
    Polygon box = geometryFactory.createPolygon(geometryFactory.createLinearRing(corners), null);
    return new DataByteArray(wkbWriter.write(box));
}

Example 73 with Polygon

use of org.locationtech.jts.geom.Polygon in project pigeon by aseldawy.

the class GridCell method exec.

@Override
public DataByteArray exec(Tuple b) throws IOException {
    int cellID = (Integer) b.get(0);
    Geometry gridMBR = geometryParser.parseGeom(b.get(1)).getEnvelope();
    int gridSize = (Integer) b.get(2);
    Coordinate[] gridCoords = gridMBR.getCoordinates();
    double gridX1 = Math.min(gridCoords[0].x, gridCoords[2].x);
    double gridY1 = Math.min(gridCoords[0].y, gridCoords[2].y);
    double gridX2 = Math.max(gridCoords[0].x, gridCoords[2].x);
    double gridY2 = Math.max(gridCoords[0].y, gridCoords[2].y);
    int column = cellID % gridSize;
    int row = cellID / gridSize;
    double cellX1 = column * (gridX2 - gridX1) / gridSize + gridX1;
    double cellX2 = (column + 1) * (gridX2 - gridX1) / gridSize + gridX1;
    double cellY1 = row * (gridY2 - gridY1) / gridSize + gridY1;
    double cellY2 = (row + 1) * (gridY2 - gridY1) / gridSize + gridY1;
    Coordinate[] corners = new Coordinate[5];
    corners[0] = new Coordinate(cellX1, cellY1);
    corners[1] = new Coordinate(cellX1, cellY2);
    corners[2] = new Coordinate(cellX2, cellY2);
    corners[3] = new Coordinate(cellX2, cellY1);
    corners[4] = corners[0];
    Polygon box = geometryFactory.createPolygon(geometryFactory.createLinearRing(corners), null);
    return new DataByteArray(wkbWriter.write(box));
}

Example 74 with Polygon

use of org.locationtech.jts.geom.Polygon in project geo-platform by geosdi.

the class PolygonAdapter method unmarshal.

public Polygon unmarshal(String val) throws ParseException {
    WKTReader wktReader = new WKTReader();
    Geometry the_geom = wktReader.read(val);
    if ((the_geom instanceof Polygon)) {
        if (the_geom.getSRID() == 0) {
            the_geom.setSRID(4326);
        }
        return (Polygon) the_geom;
    }
    throw new ParseException("WKB val is not a Polygon.");
}

Example 75 with Polygon

use of org.locationtech.jts.geom.Polygon in project geo-platform by geosdi.

the class JTSMultiPolygonParser method canParseGeometry.

/**
 * @param jtsGeometry
 * @return {@link MultiPolygon}
 * @throws ParserException
 */
@Override
protected MultiPolygon canParseGeometry(org.locationtech.jts.geom.MultiPolygon jtsGeometry) throws ParserException {
    MultiPolygon multiPolygon = gmlObjectFactory.createMultiPolygonType();
    for (int i = 0; i < jtsGeometry.getNumGeometries(); i++) {
        Polygon polygon = (Polygon) jtsGeometry.getGeometryN(i);
        multiPolygon.addPolygonMember(polygonParser.parseProperty(polygon));
    }
    return multiPolygon;
}