/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to
change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this
template
*/
package linearequation;
/**
*
* @author Win-Pro
*/
public class LinearEquation {
double a;
double b;
double c;
double d;
double e;
double f;
public LinearEquation(double a, double b, double c, double d, double e, double
f) {
this.a = a;
this.b = b;
this.c = c;
this.d = d;
this.e = e;
this.f = f;
}
public double getA() {
return a;
}
public void setA(double a) {
this.a = a;
}
public double getB() {
return b;
}
public void setB(double b) {
this.b = b;
}
public double getC() {
return c;
}
public void setC(double c) {
this.c = c;
}
public double getD() {
return d;
}
public void setD(double d) {
this.d = d;
}
public double getE() {
return e;
}
public void setE(double e) {
this.e = e;
}
public double getF() {
return f;
}
public void setF(double f) {
this.f = f;
}
public double getX() {
return (e * d - b * f) / ab_Minus_bc();
}
public double getY() {
return (a * f - e * c) / ab_Minus_bc();
}
public boolean isSolvable(){
return ab_Minus_bc() != 0;
}
private double ab_Minus_bc(){
return a * d - b * c;
}
public static LinearEquation getIntersectingPoint(double x1,double y1,double
x2,double y2,
double x3,double y3,double
x4,double y4) {
double a = (y1 - y2);
double b = (-x1 + x2);
double c = (y3 - y4);
double d = (-x3 + x4);
double e = -y1 * (x1 - x2) + (y1 - y2) * x1;
double f = -y3 * (x3 - x4) + (y3 - y4) * x3;
return new LinearEquation(a,b,c,d,e,f);
}
public static LinearEquation getIntersectingPoint(MyPoint p1, MyPoint p2,
MyPoint p3,MyPoint p4) {
return getIntersectingPoint(p1.x(), p1.y(), p2.x(), p2.y(),
p3.x(), p3.y(), p4.x(), p4.y());
}
public static LinearEquation getIntersectingPoint(MyPoint[] p) {
return getIntersectingPoint(p[0], p[1], p[2], p[3]);
}
public static LinearEquation getIntersectingPoint(double[][] points) {
return getIntersectingPoint(points[0][0],points[0][1],points[1]
[0],points[1][1],
points[2][0],points[2][1],points[3]
[0],points[3][1]);
}
}
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