
Android example source code file (Vector3.java)
The Vector3.java Android example source code/* * Copyright (C) 2010 The Android Open Source Project * * 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/LICENSE2.0 * * 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.android.heightmapprofiler; /** * Simple 3D vector class. Handles basic vector math for 3D vectors. */ public final class Vector3 { public float x; public float y; public float z; public static final Vector3 ZERO = new Vector3(0, 0, 0); public Vector3() { } public Vector3(float xValue, float yValue, float zValue) { set(xValue, yValue, zValue); } public Vector3(Vector3 other) { set(other); } public final void add(Vector3 other) { x += other.x; y += other.y; z += other.z; } public final void add(float otherX, float otherY, float otherZ) { x += otherX; y += otherY; z += otherZ; } public final void subtract(Vector3 other) { x = other.x; y = other.y; z = other.z; } public final void multiply(float magnitude) { x *= magnitude; y *= magnitude; z *= magnitude; } public final void multiply(Vector3 other) { x *= other.x; y *= other.y; z *= other.z; } public final void divide(float magnitude) { if (magnitude != 0.0f) { x /= magnitude; y /= magnitude; z /= magnitude; } } public final void set(Vector3 other) { x = other.x; y = other.y; z = other.z; } public final void set(float xValue, float yValue, float zValue) { x = xValue; y = yValue; z = zValue; } public final float dot(Vector3 other) { return (x * other.x) + (y * other.y) + (z * other.z); } public final float length() { return (float) Math.sqrt(length2()); } public final float length2() { return (x * x) + (y * y) + (z * z); } public final float distance2(Vector3 other) { float dx = x  other.x; float dy = y  other.y; float dz = z  other.z; return (dx * dx) + (dy * dy) + (dz * dz); } public final float normalize() { final float magnitude = length(); // TODO: I'm choosing safety over speed here. if (magnitude != 0.0f) { x /= magnitude; y /= magnitude; z /= magnitude; } return magnitude; } public final void zero() { set(0.0f, 0.0f, 0.0f); } } Other Android examples (source code examples)Here is a short list of links related to this Android Vector3.java source code file: 
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