--- /dev/null	2015-04-01 20:20:30.714960462 +0300
+++ new/apps/samples/3DViewer/src/main/java/com/javafx/experiments/utils3d/geom/Vec2f.java	2015-04-01 21:32:18.273401365 +0300
@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2011, 2015, Oracle and/or its affiliates.
+ * All rights reserved. Use is subject to license terms.
+ *
+ * This file is available and licensed under the following license:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the distribution.
+ *  - Neither the name of Oracle Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.javafx.experiments.utils3d.geom;
+
+/**
+ * A 2-dimensional, single-precision, floating-point vector.
+ *
+ */
+public class Vec2f {
+    /**
+     * The x coordinate.
+     */
+    public float x;
+
+    /**
+     * The y coordinate.
+     */
+    public float y;
+
+    public Vec2f() { }
+
+    public Vec2f(float x, float y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public Vec2f(Vec2f v) {
+        this.x = v.x;
+        this.y = v.y;
+    }
+
+
+    /**
+     * Sets the location of this <code>Vec2f</code> to the same
+     * coordinates as the specified <code>Vec2f</code> object.
+     * @param v the specified <code>Vec2f</code> to which to set
+     * this <code>Vec2f</code>
+     */
+    public void set(Vec2f v) {
+        this.x = v.x;
+        this.y = v.y;
+    }
+
+   /**
+     * Sets the location of this <code>Vec2f</code> to the
+     * specified <code>float</code> coordinates.
+     *
+     * @param x the new X coordinate of this {@code Vec2f}
+     * @param y the new Y coordinate of this {@code Vec2f}
+     */
+    public void set(float x, float y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    /**
+     * Returns the square of the distance between two points.
+     *
+     * @param x1 the X coordinate of the first specified point
+     * @param y1 the Y coordinate of the first specified point
+     * @param x2 the X coordinate of the second specified point
+     * @param y2 the Y coordinate of the second specified point
+     * @return the square of the distance between the two
+     * sets of specified coordinates.
+     */
+    public static float distanceSq(float x1, float y1, float x2, float y2) {
+        x1 -= x2;
+        y1 -= y2;
+        return (x1 * x1 + y1 * y1);
+    }
+
+    /**
+     * Returns the distance between two points.
+     *
+     * @param x1 the X coordinate of the first specified point
+     * @param y1 the Y coordinate of the first specified point
+     * @param x2 the X coordinate of the second specified point
+     * @param y2 the Y coordinate of the second specified point
+     * @return the distance between the two sets of specified
+     * coordinates.
+     */
+    public static float distance(float x1, float y1, float x2, float y2) {
+        x1 -= x2;
+        y1 -= y2;
+        return (float) Math.sqrt(x1 * x1 + y1 * y1);
+    }
+
+    /**
+     * Returns the square of the distance from this
+     * <code>Vec2f</code> to a specified point.
+     *
+     * @param vx the X coordinate of the specified point to be measured
+     *           against this <code>Vec2f</code>
+     * @param vy the Y coordinate of the specified point to be measured
+     *           against this <code>Vec2f</code>
+     * @return the square of the distance between this
+     * <code>Vec2f</code> and the specified point.
+     */
+    public float distanceSq(float vx, float vy) {
+        vx -= x;
+        vy -= y;
+        return (vx * vx + vy * vy);
+    }
+
+    /**
+     * Returns the square of the distance from this
+     * <code>Vec2f</code> to a specified <code>Vec2f</code>.
+     *
+     * @param v the specified point to be measured
+     *           against this <code>Vec2f</code>
+     * @return the square of the distance between this
+     * <code>Vec2f</code> to a specified <code>Vec2f</code>.
+     */
+    public float distanceSq(Vec2f v) {
+        float vx = v.x - this.x;
+        float vy = v.y - this.y;
+        return (vx * vx + vy * vy);
+    }
+
+    /**
+     * Returns the distance from this <code>Vec2f</code> to
+     * a specified point.
+     *
+     * @param vx the X coordinate of the specified point to be measured
+     *           against this <code>Vec2f</code>
+     * @param vy the Y coordinate of the specified point to be measured
+     *           against this <code>Vec2f</code>
+     * @return the distance between this <code>Vec2f</code>
+     * and a specified point.
+     */
+    public float distance(float vx, float vy) {
+        vx -= x;
+        vy -= y;
+        return (float) Math.sqrt(vx * vx + vy * vy);
+    }
+
+    /**
+     * Returns the distance from this <code>Vec2f</code> to a
+     * specified <code>Vec2f</code>.
+     *
+     * @param v the specified point to be measured
+     *           against this <code>Vec2f</code>
+     * @return the distance between this <code>Vec2f</code> and
+     * the specified <code>Vec2f</code>.
+     */
+    public float distance(Vec2f v) {
+        float vx = v.x - this.x;
+        float vy = v.y - this.y;
+        return (float) Math.sqrt(vx * vx + vy * vy);
+    }
+
+    /**
+     * Returns the hashcode for this <code>Vec2f</code>.
+     * @return      a hash code for this <code>Vec2f</code>.
+     */
+    @Override
+    public int hashCode() {
+        int bits = 7;
+        bits = 31 * bits + Float.floatToIntBits(x);
+        bits = 31 * bits + Float.floatToIntBits(y);
+        return bits;
+    }
+
+    /**
+     * Determines whether or not two 2D points or vectors are equal.
+     * Two instances of <code>Vec2f</code> are equal if the values of their
+     * <code>x</code> and <code>y</code> member fields, representing
+     * their position in the coordinate space, are the same.
+     * @param obj an object to be compared with this <code>Vec2f</code>
+     * @return <code>true</code> if the object to be compared is
+     *         an instance of <code>Vec2f</code> and has
+     *         the same values; <code>false</code> otherwise.
+     */
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) return true;
+        if (obj instanceof Vec2f) {
+            Vec2f v = (Vec2f) obj;
+            return (x == v.x) && (y == v.y);
+        }
+        return false;
+    }
+
+    /**
+     * Returns a <code>String</code> that represents the value
+     * of this <code>Vec2f</code>.
+     * @return a string representation of this <code>Vec2f</code>.
+     */
+    @Override
+    public String toString() {
+        return "Vec2f[" + x + ", " + y + "]";
+    }
+}