--- /dev/null
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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 under the License.
+ */
+
+package org.apache.lucene.spatial.geometry;
+
+/**
+ * <p><font color="red"><b>NOTE:</b> This API is still in
+ * flux and might change in incompatible ways in the next
+ * release.</font>
+ */
+public class FixedLatLng extends LatLng {
+ public static final double SCALE_FACTOR=1000000;
+ public static final int SCALE_FACTOR_INT=1000000;
+
+ private int lat, lng;
+ private boolean normalized;
+
+ public FixedLatLng(int lat, int lng) {
+ setLat(lat);
+ setLng(lng);
+ }
+
+ public FixedLatLng(LatLng ll) {
+ this.lat=ll.getFixedLat();
+ this.lng=ll.getFixedLng();
+ }
+
+ protected void setLat(int lat) {
+ if (lat>90*SCALE_FACTOR || lat<-90*SCALE_FACTOR) {
+ throw new IllegalArgumentException("Illegal lattitude");
+ }
+ this.lat=lat;
+ }
+
+ protected void setLng(int lng) {
+ this.lng=lng;
+ }
+
+ public static double fixedToDouble(int fixed) {
+ return (fixed)/SCALE_FACTOR;
+ }
+
+ public static int doubleToFixed(double d) {
+ return (int)(d*SCALE_FACTOR);
+ }
+
+ @Override
+ public LatLng copy() {
+ return new FixedLatLng(this);
+ }
+
+ @Override
+ public int getFixedLat() {
+ return lat;
+ }
+
+ @Override
+ public int getFixedLng() {
+ return lng;
+ }
+
+ @Override
+ public double getLat() {
+ return fixedToDouble(lat);
+ }
+
+ @Override
+ public double getLng() {
+ return fixedToDouble(lng);
+ }
+
+ @Override
+ public boolean isFixedPoint() {
+ return true;
+ }
+
+ @Override
+ public FixedLatLng toFixed() {
+ return this;
+ }
+
+ @Override
+ public FloatLatLng toFloat() {
+ return new FloatLatLng(this);
+ }
+
+ @Override
+ public boolean isNormalized() {
+ return
+ normalized || (
+ (lng>=-180*SCALE_FACTOR_INT) &&
+ (lng<=180*SCALE_FACTOR_INT)
+ );
+ }
+
+ @Override
+ public LatLng normalize() {
+ if (isNormalized()) return this;
+
+ int delta=0;
+ if (lng<0) delta=360*SCALE_FACTOR_INT;
+ if (lng>=0) delta=-360*SCALE_FACTOR_INT;
+
+ int newLng=lng;
+ while (newLng<=-180*SCALE_FACTOR_INT || newLng>=180*SCALE_FACTOR_INT) {
+ newLng+=delta;
+ }
+
+ FixedLatLng ret=new FixedLatLng(lat, newLng);
+ ret.normalized=true;
+ return ret;
+ }
+
+ @Override
+ public LatLng calculateMidpoint(LatLng other) {
+ return new FixedLatLng(
+ (lat+other.getFixedLat())/2,
+ (lng+other.getFixedLng())/2);
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = prime + lat;
+ result = prime * result + lng;
+ result = prime * result + (normalized ? 1231 : 1237);
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (getClass() != obj.getClass())
+ return false;
+ FixedLatLng other = (FixedLatLng) obj;
+ if (lat != other.lat)
+ return false;
+ if (lng != other.lng)
+ return false;
+ if (normalized != other.normalized)
+ return false;
+ return true;
+ }
+
+}