/*
* $Id$
* This file is a part of the Arakhne Foundation Classes, http://www.arakhne.org/afc
*
* Copyright (c) 2000-2012 Stephane GALLAND.
* Copyright (c) 2005-10, Multiagent Team, Laboratoire Systemes et Transports,
* Universite de Technologie de Belfort-Montbeliard.
* Copyright (c) 2013-2016 The original authors, and other authors.
*
* 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 org.arakhne.afc.math.discrete.object2d;
import org.arakhne.afc.math.MathConstants;
import org.arakhne.afc.math.MathUtil;
import org.arakhne.afc.math.continous.object2d.Vector2f;
import org.arakhne.afc.math.generic.Point2D;
import org.arakhne.afc.math.generic.Tuple2D;
import org.arakhne.afc.math.generic.Vector2D;
/** 2D Vector with 2 integers.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @deprecated see {@link org.arakhne.afc.math.geometry.d2.i.Vector2i}
*/
@Deprecated
@SuppressWarnings("all")
public class Vector2i extends Tuple2i<Vector2D> implements Vector2D {
private static final long serialVersionUID = -4528846627184370639L;
/**
*/
public Vector2i() {
//
}
/**
* @param tuple is the tuple to copy.
*/
public Vector2i(Tuple2D<?> tuple) {
super(tuple);
}
/**
* @param tuple is the tuple to copy.
*/
public Vector2i(int[] tuple) {
super(tuple);
}
/**
* @param tuple is the tuple to copy.
*/
public Vector2i(float[] tuple) {
super(tuple);
}
/**
* @param x
* @param y
*/
public Vector2i(int x, int y) {
super(x,y);
}
/**
* @param x
* @param y
*/
public Vector2i(float x, float y) {
super(x,y);
}
/**
* @param x
* @param y
*/
public Vector2i(double x, double y) {
super((float)x,(float)y);
}
/**
* @param x
* @param y
*/
public Vector2i(long x, long y) {
super(x,y);
}
/** {@inheritDoc}
*/
@Override
public Vector2i clone() {
return (Vector2i)super.clone();
}
/**
* {@inheritDoc}
*/
@Override
public float angle(Vector2D v1) {
double vDot = dot(v1) / ( length()*v1.length() );
if( vDot < -1.) vDot = -1.;
if( vDot > 1.) vDot = 1.;
return((float) (Math.acos( vDot )));
}
/**
* {@inheritDoc}
*/
@Override
public float dot(Vector2D v1) {
return (this.x*v1.getX() + this.y*v1.getY());
}
/**
* {@inheritDoc}
*/
@Override
public float length() {
return (float) Math.sqrt(this.x*this.x + this.y*this.y);
}
/**
* {@inheritDoc}
*/
@Override
public float lengthSquared() {
return (this.x*this.x + this.y*this.y);
}
/**
* {@inheritDoc}
*/
@Override
public void normalize(Vector2D v1) {
float norm;
norm = (float) (1./Math.sqrt(v1.getX()*v1.getX() + v1.getY()*v1.getY()));
this.x = (int)(v1.getX()*norm);
this.y = (int)(v1.getY()*norm);
}
/**
* {@inheritDoc}
*/
@Override
public void normalize() {
float norm;
norm = (float)(1./Math.sqrt(this.x*this.x + this.y*this.y));
this.x *= norm;
this.y *= norm;
}
/**
* {@inheritDoc}
*/
@Override
public float signedAngle(Vector2D v) {
assert(v!=null);
Vector2f a = new Vector2f(this);
if (a.length()==0) return Float.NaN;
Vector2f b = new Vector2f(v);
if (b.length()==0) return Float.NaN;
a.normalize();
b.normalize();
float cos = a.getX() * b.getX() + a.getY() * b.getY();
// A x B = |A|.|B|.sin(theta).N = sin(theta) (where N is the unit vector perpendicular to plane AB)
float sin = a.getX()*b.getY() - a.getY()*b.getX();
float angle = (float)Math.atan2(sin, cos);
return angle;
}
/**
* {@inheritDoc}
*/
@Override
public void turnVector(float angle) {
float sin = (float)Math.sin(angle);
float cos = (float)Math.cos(angle);
float x = cos * getX() + sin * getY();
float y = -sin * getX() + cos * getY();
set(x,y);
}
@Override
public void add(Vector2D t1, Vector2D t2) {
this.x = (int)(t1.getX() + t2.getX());
this.y = (int)(t1.getY() + t2.getY());
}
@Override
public void add(Vector2D t1) {
this.x = (int)(this.x + t1.getX());
this.y = (int)(this.y + t1.getY());
}
@Override
public void scaleAdd(int s, Vector2D t1, Vector2D t2) {
this.x = (int)(s * t1.getX() + t2.getX());
this.y = (int)(s * t1.getY() + t2.getY());
}
@Override
public void scaleAdd(float s, Vector2D t1, Vector2D t2) {
this.x = (int)(s * t1.getX() + t2.getX());
this.y = (int)(s * t1.getY() + t2.getY());
}
@Override
public void scaleAdd(int s, Vector2D t1) {
this.x = (int)(s * this.x + t1.getX());
this.y = (int)(s * this.y + t1.getY());
}
@Override
public void scaleAdd(float s, Vector2D t1) {
this.x = (int)(s * this.x + t1.getX());
this.y = (int)(s * this.y + t1.getY());
}
@Override
public void sub(Vector2D t1, Vector2D t2) {
this.x = (int)(t1.getX() - t2.getX());
this.y = (int)(t1.getY() - t2.getY());
}
@Override
public void sub(Point2D t1, Point2D t2) {
this.x = (int)(t1.getX() - t2.getX());
this.y = (int)(t1.getY() - t2.getY());
}
@Override
public void sub(Vector2D t1) {
this.x = (int)(this.x - t1.getX());
this.y = (int)(this.y - t1.getY());
}
/** Replies the orientation vector, which is corresponding
* to the given angle on a trigonometric circle.
*
* @param angle is the angle in radians to translate.
* @return the orientation vector which is corresponding to the given angle.
*/
public static Vector2i toOrientationVector(float angle) {
return new Vector2i(
(float)Math.cos(angle),
(float)Math.sin(angle));
}
@Override
public float getOrientationAngle() {
float angle = (float)Math.acos(getX());
if (getY()<0f) angle = -angle;
return (float) MathUtil.clampCyclic(angle, 0, MathConstants.TWO_PI);
}
@Override
public void perpendicularize() {
// Based on the cross product in 3D of (vx,vy,0)x(0,0,1), right-handed
//set(y(), -x());
// Based on the cross product in 3D of (vx,vy,0)x(0,0,1), left-handed
set(-y(), x());
}
}