pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / spatial / src / java / org / apache / lucene / spatial / geometry / shape / LineSegment.java

diff --git a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/shape/LineSegment.java b/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/shape/LineSegment.java
deleted file mode 100644 (file)
index 2fd05e2..0000000
--- a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/shape/LineSegment.java
+++ /dev/null
@@ -1,117 +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.shape;
-
-
-/**
- * 2d line segment.
- *
- * <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 LineSegment {
-  public final Point2D A = new Point2D();
-  public final Point2D B = new Point2D();
-
-  public LineSegment() {
-    A.set(0, 0);
-    B.set(0, 0);
-  }
-
-  public LineSegment(Point2D p1, Point2D p2) {
-    A.set(p1);
-    B.set(p2);
-  }
-
-  /**
-   * Finds the distance of a specified point from the line segment and the
-   * closest point on the segment to the specified point.
-   * 
-   * @param P
-   *            Test point.
-   * @param closestPt
-   *            (Return) Closest point on the segment to c.
-   * 
-   * @return Returns the distance from P to the closest point on the segment.
-   */
-  public double distance(Point2D P, Point2D /* out */closestPt) {
-    if (closestPt == null)
-      closestPt = new Point2D();
-
-    // Construct vector v (AB) and w (AP)
-    Vector2D v = new Vector2D(A, B);
-    Vector2D w = new Vector2D(A, P);
-
-    // Numerator of the component of w onto v. If <= 0 then A
-    // is the closest point. By separating into the numerator
-    // and denominator of the component we avoid a division unless
-    // it is necessary.
-    double n = w.dot(v);
-    if (n <= 0.0f) {
-      closestPt.set(A);
-      return w.norm();
-    }
-
-    // Get the denominator of the component. If the component >= 1
-    // (d <= n) then point B is the closest point
-    double d = v.dot(v);
-    if (d <= n) {
-      closestPt.set(B);
-      return new Vector2D(B, P).norm();
-    }
-
-    // Closest point is along the segment. The point is the projection of
-    // w onto v.
-    closestPt.set(v.mult(n / d));
-    closestPt.add(A);
-    return new Vector2D(closestPt, P).norm();
-  }
-
-  @Override
-  public int hashCode() {
-    final int prime = 31;
-    int result = 1;
-    result = prime * result + ((A == null) ? 0 : A.hashCode());
-    result = prime * result + ((B == null) ? 0 : B.hashCode());
-    return result;
-  }
-
-  @Override
-  public boolean equals(Object obj) {
-    if (this == obj)
-      return true;
-    if (obj == null)
-      return false;
-    if (getClass() != obj.getClass())
-      return false;
-    LineSegment other = (LineSegment) obj;
-    if (A == null) {
-      if (other.A != null)
-        return false;
-    } else if (!A.equals(other.A))
-      return false;
-    if (B == null) {
-      if (other.B != null)
-        return false;
-    } else if (!B.equals(other.B))
-      return false;
-    return true;
-  }
-  
-}