1 files changed, 144 insertions, 0 deletions
diff --git a/src/javax/vecmath/Point2d.java b/src/javax/vecmath/Point2d.java
new file mode 100644
index 0000000..0e819d3
--- /dev/null
+++ b/src/javax/vecmath/Point2d.java
@@ -0,0 +1,144 @@
+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Use is subject to license terms.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+package javax.vecmath;
+
+import java.lang.Math;
+
+/**
+ * A 2 element point that is represented by double precision floating 
+ * point x,y coordinates.
+ *
+ */
+public class Point2d extends Tuple2d implements java.io.Serializable {
+
+    // Compatible with 1.1
+    static final long serialVersionUID = 1133748791492571954L;
+
+    /**
+     * Constructs and initializes a Point2d from the specified xy coordinates.
+     * @param x the x coordinate
+     * @param y the y coordinate
+     */
+    public Point2d(double x, double y)
+    {
+         super(x,y);
+    }
+
+
+    /**
+     * Constructs and initializes a Point2d from the specified array.
+     * @param p the array of length 2 containing xy in order
+     */
+    public Point2d(double[] p)
+    {
+         super(p);
+    }
+
+
+    /**
+     * Constructs and initializes a Point2d from the specified Point2d.
+     * @param p1 the Point2d containing the initialization x y data
+     */
+    public Point2d(Point2d p1)
+    {
+        super(p1);
+    }
+
+
+    /**
+     * Constructs and initializes a Point2d from the specified Point2f.
+     * @param p1 the Point2f containing the initialization x y data
+     */
+    public Point2d(Point2f p1)
+    {
+        super(p1);
+    }
+
+
+    /**
+     * Constructs and initializes a Point2d from the specified Tuple2d.
+     * @param t1 the Tuple2d containing the initialization x y data
+     */ 
+    public Point2d(Tuple2d t1) 
+    {
+       super(t1);
+    }
+
+
+    /**
+     * Constructs and initializes a Point2d from the specified Tuple2f.
+     * @param t1 the Tuple2f containing the initialization x y data
+     */ 
+    public Point2d(Tuple2f t1) 
+    {
+       super(t1);
+    }
+
+
+    /**
+     * Constructs and initializes a Point2d to (0,0).
+     */
+    public Point2d()
+    {
+       super();
+    }
+
+  /**
+   * Computes the square of the distance between this point and point p1.
+   * @param p1 the other point
+   */
+  public final double distanceSquared(Point2d p1)
+    {
+      double dx, dy;
+
+      dx = this.x-p1.x;  
+      dy = this.y-p1.y;
+      return dx*dx+dy*dy;
+    }
+
+  /**
+   * Computes the distance between this point and point p1.
+   * @param p1 the other point 
+   */    
+  public final double distance(Point2d p1)
+    {
+      double  dx, dy;
+
+      dx = this.x-p1.x;  
+      dy = this.y-p1.y;
+      return Math.sqrt(dx*dx+dy*dy);
+    }
+
+
+  /**
+    * Computes the L-1 (Manhattan) distance between this point and
+    * point p1.  The L-1 distance is equal to abs(x1-x2) + abs(y1-y2).
+    * @param p1 the other point
+    */
+  public final double distanceL1(Point2d p1)
+    {
+      return( Math.abs(this.x-p1.x) + Math.abs(this.y-p1.y));
+    }
+
+  /**
+    * Computes the L-infinite distance between this point and
+    * point p1.  The L-infinite distance is equal to 
+    * MAX[abs(x1-x2), abs(y1-y2)]. 
+    * @param p1 the other point
+    */
+  public final double distanceLinf(Point2d p1)
+    {
+      return(Math.max( Math.abs(this.x-p1.x), Math.abs(this.y-p1.y)));
+    }
+
+}