Returns the squared distance between a point and an (x,y) coordinate. - Android java.lang

Android examples for java.lang:Math Geometry

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Description

Returns the squared distance between a point and an (x,y) coordinate.

Demo Code

/*//ww  w . ja v  a2s  .  c  om
 * Copyright (C) 2013 Google Inc.
 *
 * Licensed 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 com.java2s;
import android.graphics.PointF;

public class Main {
    /**
     * Returns the squared distance between a point and an (x,y) coordinate.
     *
     * @param p The point.
     * @param x The x-coordinate.
     * @param y The y-coordinate.
     * @return The squared distance between the point and (x,y) coordinate.
     */
    public static float distSq(PointF p, float x, float y) {
        final float dX = (x - p.x);
        final float dY = (y - p.y);
        return ((dX * dX) + (dY * dY));
    }
}

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