pylucene 3.5.0-3

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

diff --git a/lucene-java-3.5.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/shape/Rectangle.java b/lucene-java-3.5.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/shape/Rectangle.java
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+/**
+ * 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;
+
+
+/**
+ * Rectangle shape.  
+ *
+ * <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 Rectangle implements Geometry2D {
+  private Point2D ptMin, ptMax;
+  
+  public Rectangle() {
+    ptMin=new Point2D(-1, 1);
+    ptMax=new Point2D(1, 1);
+  }
+  
+  public Rectangle(Point2D ptMin, Point2D ptMax) {
+    this.ptMin=new Point2D(ptMin);
+    this.ptMax=new Point2D(ptMax);
+  }
+  
+  public Rectangle(double x1, double y1, double x2, double y2) {
+    set(x1, y1, x2, y2);
+  }
+
+  @Override
+  public String toString() {
+    return "[" + ptMin + "," + ptMax + "]";
+  }
+  
+  private void set(double x1, double y1, double x2, double y2) {
+    this.ptMin=new Point2D(Math.min(x1, x2), Math.min(y1, y2));
+    this.ptMax=new Point2D(Math.max(x1, x2), Math.max(y1, y2));
+  }
+  
+  public double area() {
+    return (ptMax.getX() - ptMin.getX()) * (ptMax.getY() - ptMin.getY());
+  }
+
+  public Point2D centroid() {
+    return new Point2D( (ptMin.getX() + ptMax.getX()) / 2,
+                  (ptMin.getY() + ptMax.getY()) / 2);
+  }
+
+  public boolean contains(Point2D p) {
+    return p.getX() >= ptMin.getX() && 
+      p.getX() <= ptMax.getX() &&
+      p.getY() >= ptMin.getY() &&
+      p.getY() <= ptMax.getY();
+  }
+
+  public void translate(Vector2D v) {
+    ptMin.add(v);
+    ptMax.add(v);
+  }
+
+  Point2D MinPt() {
+    return ptMin;
+  }
+
+  Point2D MaxPt() {
+    return ptMax;
+  }
+
+  public IntersectCase intersect(Rectangle r) {
+    throw new UnsupportedOperationException();
+    // TODO
+  }
+
+  public Point2D getMaxPoint() {
+    return ptMax;
+  }
+
+  public Point2D getMinPoint() {
+    return ptMin;
+  }
+
+  @Override
+  public int hashCode() {
+    final int prime = 31;
+    int result = 1;
+    result = prime * result + ((ptMax == null) ? 0 : ptMax.hashCode());
+    result = prime * result + ((ptMin == null) ? 0 : ptMin.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;
+    Rectangle other = (Rectangle) obj;
+    if (ptMax == null) {
+      if (other.ptMax != null)
+        return false;
+    } else if (!ptMax.equals(other.ptMax))
+      return false;
+    if (ptMin == null) {
+      if (other.ptMin != null)
+        return false;
+    } else if (!ptMin.equals(other.ptMin))
+      return false;
+    return true;
+  }
+
+}