pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / spatial / src / java / org / apache / lucene / spatial / geometry / FloatLatLng.java

diff --git a/lucene-java-3.5.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/FloatLatLng.java b/lucene-java-3.5.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/FloatLatLng.java
new file mode 100644 (file)
index 0000000..b5ab484
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+++ b/lucene-java-3.5.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/FloatLatLng.java
@@ -0,0 +1,143 @@
+/**
+ * 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 FloatLatLng extends LatLng {
+  private double lat;
+  private double lng;
+  private boolean normalized;
+  
+  public FloatLatLng(double lat, double lng) {
+    if (lat>90.0 || lat<-90.0) throw new IllegalArgumentException("Illegal latitude value " + lat);
+    this.lat=lat;
+    this.lng=lng;
+  }
+  
+  public FloatLatLng(LatLng ll) {
+    this.lat=ll.getLat();
+    this.lng=ll.getLng();
+  }
+  
+  @Override
+  public LatLng copy() {
+    return new FloatLatLng(this);
+  }
+
+  @Override
+  public int getFixedLat() {
+    return FixedLatLng.doubleToFixed(this.lat);
+  }
+
+  @Override
+  public int getFixedLng() {
+    return FixedLatLng.doubleToFixed(this.lng);
+  }
+
+  @Override
+  public double getLat() {
+    return this.lat;
+  }
+
+  @Override
+  public double getLng() {
+    return this.lng;
+  }
+
+  @Override
+  public boolean isFixedPoint() {
+    return false;
+  }
+
+  @Override
+  public FixedLatLng toFixed() {
+    return new FixedLatLng(this);
+  }
+
+  @Override
+  public FloatLatLng toFloat() {
+    return this;
+  }
+  
+  @Override
+  public boolean isNormalized() {
+    return 
+      normalized || (
+          (lng>=-180) &&
+          (lng<=180)
+          );
+  }
+
+  @Override
+  public LatLng normalize() {
+    if (isNormalized()) return this;
+    
+    double delta=0;
+    if (lng<0) delta=360;
+    if (lng>=0) delta=-360;
+    
+    double newLng=lng;
+    while (newLng<=-180 || newLng>=180) {
+      newLng+=delta;
+    }
+    
+    FloatLatLng ret=new FloatLatLng(lat, newLng);
+    ret.normalized=true;
+    return ret;
+  }
+
+  @Override
+  public LatLng calculateMidpoint(LatLng other) {
+    return new FloatLatLng(
+        (lat+other.getLat())/2.0,
+        (lng+other.getLng())/2.0);
+  }
+
+  @Override
+  public int hashCode() {
+    final int prime = 31;
+    long temp;
+    temp = Double.doubleToLongBits(lat);
+    int result = prime  + (int) (temp ^ (temp >>> 32));
+    temp = Double.doubleToLongBits(lng);
+    result = prime * result + (int) (temp ^ (temp >>> 32));
+    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;
+    FloatLatLng other = (FloatLatLng) obj;
+    if (Double.doubleToLongBits(lat) != Double.doubleToLongBits(other.lat))
+      return false;
+    if (Double.doubleToLongBits(lng) != Double.doubleToLongBits(other.lng))
+      return false;
+    if (normalized != other.normalized)
+      return false;
+    return true;
+  }
+
+}