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/* Copyright (C) 2006-2010 Joan Queralt Molina
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
package biogenesis;
public class Vector2D {
protected double _modulus = 0;
protected double _theta = 0;
Vector2D() {
}
public double getX() {
return _modulus*Math.cos(_theta);
}
public void setPolar(double modulus, double theta) {
_modulus = modulus;
_theta = theta;
}
public void setModulus(double modulus) {
_modulus = modulus;
}
public void setTheta(double theta) {
_theta = theta;
}
public double getY() {
return _modulus*Math.sin(_theta);
}
public double getModulus() {
return _modulus;
}
public double getTheta() {
return _theta;
}
public void addDegree(double theta) {
_theta+=theta;
}
public void invertX() {
_theta=Math.PI-_theta;
}
public void invertY() {
_theta=2.0*Math.PI-_theta;
}
}
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