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* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.elasticsearch.test.geo;
import org.apache.lucene.spatial.util.GeoUtils;
import org.elasticsearch.common.geo.GeoPoint;
import java.util.Random;
/**
* Random geo generation utilities for randomized {@code geo_point} type testing
* does not depend on jts or spatial4j. Use {@link org.elasticsearch.test.geo.RandomShapeGenerator}
* to create random OGC compliant shapes.
*/
public class RandomGeoGenerator {
public static void randomPoint(Random r, double[] pt) {
final double[] min = {-180, -90};
final double[] max = {180, 90};
randomPointIn(r, min[0], min[1], max[0], max[1], pt);
}
public static void randomPointIn(Random r, final double minLon, final double minLat,
final double maxLon, final double maxLat, double[] pt) {
assert pt != null && pt.length == 2;
// normalize min and max
double[] min = {GeoUtils.normalizeLon(minLon), GeoUtils.normalizeLat(minLat)};
double[] max = {GeoUtils.normalizeLon(maxLon), GeoUtils.normalizeLat(maxLat)};
final double[] tMin = new double[2];
final double[] tMax = new double[2];
tMin[0] = Math.min(min[0], max[0]);
tMax[0] = Math.max(min[0], max[0]);
tMin[1] = Math.min(min[1], max[1]);
tMax[1] = Math.max(min[1], max[1]);
pt[0] = tMin[0] + r.nextDouble() * (tMax[0] - tMin[0]);
pt[1] = tMin[1] + r.nextDouble() * (tMax[1] - tMin[1]);
}
public static GeoPoint randomPoint(Random r) {
return randomPointIn(r, -180, -90, 180, 90);
}
public static GeoPoint randomPointIn(Random r, final double minLon, final double minLat,
final double maxLon, final double maxLat) {
double[] pt = new double[2];
randomPointIn(r, minLon, minLat, maxLon, maxLat, pt);
return new GeoPoint(pt[1], pt[0]);
}
}