Examples with Point org.locationtech.spatial4j.shape.Point used on opensource projects

Example 26 with Point

use of org.locationtech.spatial4j.shape.Point in project ddf by codice.

the class GeoNamesWebService method getNearbyCity.

@Override
public NearbyLocation getNearbyCity(String locationWkt) {
    notNull(locationWkt, "argument locationWkt may not be null");
    Point wktCenterPoint = createPointFromWkt(locationWkt);
    String urlStr = String.format("%s://%s/findNearbyPlaceNameJSON?lat=%f&lng=%f&maxRows=1&username=%s&cities=cities5000", GEONAMES_PROTOCOL, GEONAMES_API_ADDRESS, wktCenterPoint.getY(), wktCenterPoint.getX(), USERNAME);
    Object result = query(urlStr);
    if (result instanceof JSONObject) {
        JSONObject jsonResult = (JSONObject) result;
        JSONArray geonames = (JSONArray) jsonResult.get(GEONAMES_KEY);
        if (geonames != null && geonames.size() > 0) {
            JSONObject firstResult = (JSONObject) geonames.get(0);
            if (firstResult != null) {
                double lat = Double.valueOf((String) firstResult.get(LAT_KEY));
                double lon = Double.valueOf((String) firstResult.get(LON_KEY));
                String cityName = (String) firstResult.get(PLACENAME_KEY);
                Point cityPoint = new PointImpl(lon, lat, SpatialContext.GEO);
                return new NearbyLocationImpl(wktCenterPoint, cityPoint, cityName);
            }
        }
    }
    return null;
}

Example 27 with Point

use of org.locationtech.spatial4j.shape.Point in project ddf by codice.

the class TestGeoNamesWebService method testCreateGeoPointFromWktParseException.

@Test
public void testCreateGeoPointFromWktParseException() {
    String pointWkt = "i am not well known";
    Point p = webService.createPointFromWkt(pointWkt);
    assertThat(p, nullValue());
}

Example 28 with Point

use of org.locationtech.spatial4j.shape.Point in project ddf by codice.

the class TestGeoNamesWebService method testCreateGeoPointFromWkt.

@Test
public void testCreateGeoPointFromWkt() {
    String pointWkt = CREATE_POINT_FROM_WKT_POINT;
    Point p = webService.createPointFromWkt(pointWkt);
    assertThat(p, notNullValue());
    assertThat(p.getX(), equalTo(-1.0));
    assertThat(p.getY(), equalTo(22.0));
    String polygonWkt = CREATE_POINT_FROM_WKT_POLYGON;
    p = webService.createPointFromWkt(polygonWkt);
    assertThat(p, notNullValue());
}

Example 29 with Point

use of org.locationtech.spatial4j.shape.Point in project ddf by codice.

the class GeoNamesQueryLuceneIndex method doGetNearestCities.

protected List<NearbyLocation> doGetNearestCities(final Shape shape, final int radiusInKm, final int maxResults, final Directory directory) throws GeoEntryQueryException {
    notNull(shape, "GeoNamesQueryLuceneIndex.doGetNearestCities(): argument 'shape' may not be null.");
    if (radiusInKm <= 0) {
        throw new IllegalArgumentException("GeoNamesQueryLuceneIndex.doGetNearestCities(): radiusInKm must be positive.");
    }
    if (maxResults <= 0) {
        throw new IllegalArgumentException("GeoNamesQueryLuceneIndex.doGetNearestCities(): maxResults must be positive.");
    }
    if (directory == null) {
        return Collections.emptyList();
    }
    try (final IndexReader indexReader = createIndexReader(directory)) {
        final IndexSearcher indexSearcher = createIndexSearcher(indexReader);
        final List<NearbyLocation> closestCities = new ArrayList<>();
        final Point center = shape.getCenter();
        final Query filter = createSpatialQuery(center, radiusInKm);
        // Query for all the documents in the index that are cities, then filter those
        // results for the ones that are in the search area.
        final BooleanQuery booleanQuery = new BooleanQuery.Builder().add(PPL_QUERY, BooleanClause.Occur.MUST).add(filter, BooleanClause.Occur.FILTER).build();
        final TopDocs topDocs = indexSearcher.search(booleanQuery, maxResults, SORT);
        if (topDocs.totalHits > 0) {
            for (ScoreDoc scoreDoc : topDocs.scoreDocs) {
                final double lat = Double.parseDouble(indexSearcher.doc(scoreDoc.doc).get(GeoNamesLuceneConstants.LATITUDE_FIELD));
                final double lon = Double.parseDouble(indexSearcher.doc(scoreDoc.doc).get(GeoNamesLuceneConstants.LONGITUDE_FIELD));
                final String name = indexSearcher.doc(scoreDoc.doc).get(GeoNamesLuceneConstants.NAME_FIELD);
                final NearbyLocation city = new NearbyLocationImpl(center, new PointImpl(lon, lat, SPATIAL_CONTEXT), name);
                closestCities.add(city);
            }
        }
        return closestCities;
    } catch (IOException e) {
        throw new GeoEntryQueryException("Error reading the index", e);
    }
}

Example 30 with Point

use of org.locationtech.spatial4j.shape.Point in project ddf by codice.

the class GeoNamesQueryLuceneIndex method doGetCountryCode.

protected String doGetCountryCode(Shape shape, int radiusInKm, Directory directory) throws GeoEntryQueryException {
    notNull(shape, "GeoNamesQueryLuceneIndex.doGetCountryCode(): argument 'shape' may not be null.");
    notNull(directory, "GeoNamesQueryLuceneIndex.doGetCountryCode(): argument 'directory' may not be null.");
    if (radiusInKm <= 0) {
        throw new IllegalArgumentException("GeoNamesQueryLuceneIndex.doGetCountryCode(): radiusInKm must be positive.");
    }
    try (final IndexReader indexReader = createIndexReader(directory)) {
        final IndexSearcher indexSearcher = createIndexSearcher(indexReader);
        final Point center = shape.getCenter();
        final Query filter = createSpatialQuery(center, radiusInKm);
        final BooleanQuery booleanQuery = new BooleanQuery.Builder().add(filter, BooleanClause.Occur.FILTER).build();
        final TopDocs topDocs = indexSearcher.search(booleanQuery, 1, SORT);
        String countryCode = null;
        if (topDocs.totalHits > 0) {
            countryCode = indexSearcher.doc(topDocs.scoreDocs[0].doc).get(GeoNamesLuceneConstants.COUNTRY_CODE_FIELD);
        }
        return countryCode;
    } catch (IOException e) {
        throw new GeoEntryQueryException("Error reading the index", e);
    }
}