X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/LatLng.java

diff --git a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/LatLng.java b/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/LatLng.java
deleted file mode 100644
index b2128ab..0000000
--- a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/LatLng.java
+++ /dev/null
@@ -1,160 +0,0 @@
-/**
- * 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;
-
-
-/**
- * Abstract base lat-lng class which can manipulate fixed point or floating
- * point based coordinates. Instances are immutable.
- * 
- * @see FloatLatLng
- *
- * <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 abstract class LatLng {
-
-  public abstract boolean isNormalized();
-
-  public abstract boolean isFixedPoint();
-
-  public abstract LatLng normalize();
-
-  public abstract int getFixedLat();
-
-  public abstract int getFixedLng();
-
-  public abstract double getLat();
-
-  public abstract double getLng();
-
-  public abstract LatLng copy();
-
-  public abstract FixedLatLng toFixed();
-
-  public abstract FloatLatLng toFloat();
-  
-  /**
-   * Convert the lat/lng into the cartesian coordinate plane such that all
-   * world coordinates are represented in the first quadrant.
-   * The x dimension corresponds to latitude and y corresponds to longitude.
-   * The translation starts with the normalized latlng and adds 180 to the latitude and 
-   * 90 to the longitude (subject to fixed point scaling).
-   */
-  public CartesianPoint toCartesian() {
-    LatLng ll=normalize();
-    
-    int lat=ll.getFixedLat();
-    int lng=ll.getFixedLng();
-    
-    return new CartesianPoint(
-        lng+180*FixedLatLng.SCALE_FACTOR_INT,
-        lat+90*FixedLatLng.SCALE_FACTOR_INT
-    );
-  }
-  
-  /**
-   * The inverse of toCartesian().  Always returns a FixedLatLng.
-   * @param pt
-   */
-  public static LatLng fromCartesian(CartesianPoint pt) {
-    int lat=pt.getY() - 90 * FixedLatLng.SCALE_FACTOR_INT;
-    int lng=pt.getX() - 180 * FixedLatLng.SCALE_FACTOR_INT;
-    
-    return new FixedLatLng(lat, lng);
-  }
-  
-  /**
-   * Calculates the distance between two lat/lng's in miles.
-   * Imported from mq java client.
-   * 
-   * @param ll2
-   *            Second lat,lng position to calculate distance to.
-   * 
-   * @return Returns the distance in miles.
-   */
-  public double arcDistance(LatLng ll2) {
-    return arcDistance(ll2, DistanceUnits.MILES);
-  }
-
-  /**
-   * Calculates the distance between two lat/lng's in miles or meters.
-   * Imported from mq java client.  Variable references changed to match.
-   * 
-   * @param ll2
-   *            Second lat,lng position to calculate distance to.
-   * @param lUnits
-   *            Units to calculate distance, defaults to miles
-   * 
-   * @return Returns the distance in meters or miles.
-   */
-  public double arcDistance(LatLng ll2, DistanceUnits lUnits) {
-    LatLng ll1 = normalize();
-    ll2 = ll2.normalize();
-
-    double lat1 = ll1.getLat(), lng1 = ll1.getLng();
-    double lat2 = ll2.getLat(), lng2 = ll2.getLng();
-
-    // Check for same position
-    if (lat1 == lat2 && lng1 == lng2)
-      return 0.0;
-
-    // Get the m_dLongitude difference. Don't need to worry about
-    // crossing 180 since cos(x) = cos(-x)
-    double dLon = lng2 - lng1;
-
-    double a = radians(90.0 - lat1);
-    double c = radians(90.0 - lat2);
-    double cosB = (Math.cos(a) * Math.cos(c))
-        + (Math.sin(a) * Math.sin(c) * Math.cos(radians(dLon)));
-
-    double radius = (lUnits == DistanceUnits.MILES) ? 3963.205/* MILERADIUSOFEARTH */
-    : 6378.160187/* KMRADIUSOFEARTH */;
-
-    // Find angle subtended (with some bounds checking) in radians and
-    // multiply by earth radius to find the arc distance
-    if (cosB < -1.0)
-      return 3.14159265358979323846/* PI */* radius;
-    else if (cosB >= 1.0)
-      return 0;
-    else
-      return Math.acos(cosB) * radius;
-  }
-
-  private double radians(double a) {
-    return a * 0.01745329251994;
-  }
-
-  @Override
-  public String toString() {
-    return "[" + getLat() + "," + getLng() + "]";
-  }
-
-  /**
-   * Calculate the midpoint between this point an another.  Respects fixed vs floating point
-   * @param other
-   */
-  public abstract LatLng calculateMidpoint(LatLng other);
-  
-  @Override
-  public abstract int hashCode();
-
-  @Override
-  public abstract boolean equals(Object obj);
-}