pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / spatial / src / java / org / apache / lucene / spatial / tier / projections / CartesianTierPlotter.java

diff --git a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/projections/CartesianTierPlotter.java b/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/projections/CartesianTierPlotter.java
deleted file mode 100644 (file)
index 5e3b48f..0000000
--- a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/projections/CartesianTierPlotter.java
+++ /dev/null
@@ -1,164 +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.tier.projections;
-
-/**
- * <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 CartesianTierPlotter {
-  public static final String DEFALT_FIELD_PREFIX = "_tier_";
-  
-  final int tierLevel;
-  int tierLength;
-  int tierBoxes;
-  int tierVerticalPosDivider;
-  final IProjector projector;
-  final String fieldPrefix;
-  Double idd = Double.valueOf(180);
-  
-  public CartesianTierPlotter (int tierLevel, IProjector projector, String fieldPrefix) {
-  
-    this.tierLevel  = tierLevel;
-    this.projector = projector;
-    this.fieldPrefix = fieldPrefix;
-    
-    setTierLength();
-    setTierBoxes();
-    setTierVerticalPosDivider();
-  }
-  
-  private void setTierLength (){
-    this.tierLength = (int) Math.pow(2 , this.tierLevel);
-  }
-  
-  private void setTierBoxes () {
-    this.tierBoxes = (int)Math.pow(this.tierLength, 2);
-  }
-  
-  /**
-   * Get nearest max power of 10 greater than
-   * the tierlen
-   * e.g
-   * tierId of 13 has tierLen 8192
-   * nearest max power of 10 greater than tierLen 
-   * would be 10,000
-   */
-  
-  private void setTierVerticalPosDivider() {
-    
-    // ceiling of log base 10 of tierLen
-    
-    tierVerticalPosDivider = Double.valueOf(Math.ceil(
-          Math.log10(Integer.valueOf(this.tierLength).doubleValue()))).intValue();
-    
-    // 
-    tierVerticalPosDivider = (int)Math.pow(10, tierVerticalPosDivider );
-    
-  }
-  
-  public double getTierVerticalPosDivider(){
-    return tierVerticalPosDivider;
-  }
-  
-  /**
-   * TierBoxId is latitude box id + longitude box id
-   * where latitude box id, and longitude box id are transposed in to position
-   * coordinates.
-   * 
-   * @param latitude
-   * @param longitude
-   */
-  public double getTierBoxId (double latitude, double longitude) {
-    
-    double[] coords = projector.coords(latitude, longitude);
-    
-    double id = getBoxId(coords[0]) + (getBoxId(coords[1]) / tierVerticalPosDivider);
-    return id ;
-  }
-  
-  
-  private double getBoxId (double coord){
-    
-    
-    return Math.floor(coord / (idd / this.tierLength));
-  }
-  
-  @SuppressWarnings("unused")
-  private double getBoxId (double coord, int tierLen){
-    return Math.floor(coord / (idd / tierLen) );
-  }
-  /**
-   * get the string name representing current tier
-   * _localTier&lt;tiedId&gt;
-   */
-  public String getTierFieldName (){
-    
-    return fieldPrefix + this.tierLevel;
-  }
-  
-  /**
-   * get the string name representing tierId
-   * _localTier&lt;tierId&gt;
-   * @param tierId
-   */
-  public String getTierFieldName (int tierId){
-    
-    return fieldPrefix + tierId;
-  }
-  
-  /**
-   * Find the tier with the best fit for a bounding box
-   * Best fit is defined as the ceiling of
-   *  log2 (circumference of earth / distance) 
-   *  distance is defined as the smallest box fitting
-   *  the corner between a radius and a bounding box.
-   *  
-   *  Distances less than a mile return 15, finer granularity is
-   *  in accurate
-   */
-  public int bestFit(double miles){
-    
-    //28,892 a rough circumference of the earth
-    int circ = 28892;
-    
-    double r = miles / 2.0;
-    
-    double corner = r - Math.sqrt(Math.pow(r, 2) / 2.0d);
-    double times = circ / corner;
-    int bestFit =  (int)Math.ceil(log2(times)) + 1;
-    
-    if (bestFit > 15) {
-      // 15 is the granularity of about 1 mile
-      // finer granularity isn't accurate with standard java math
-      return 15;
-    }
-    return bestFit;
-  }
-  
-  /**
-   * a log to the base 2 formula
-   * <code>Math.log(value) / Math.log(2)</code>
-   * @param value
-   */
-  public double log2(double value) {
-    
-    return Math.log(value) / Math.log(2);
-  }
-}