private double doubleVectorAbs(Vector<Vector<Double>> doubleVector) {
double totalX = 0;
for (Vector<Double> vector : doubleVector) {
totalX += Math.pow(vectorAbs(vector), 2);
}
return Math.sqrt(totalX);
}
private static Point2D evalParametric(CubicCurve2D curve, double t) {
if (null == curve) {
return null;
}
// B(t) = (1-t)^3 P_0 + 3(1-t)^2t C_1 + 3(1 - t)t^2 C_2 + t^3 P_1
// do nothing fancy, just calculate it.
double rx =
((Math.pow((1 - t), 3) * curve.getX1()))
+ (3 * Math.pow((1 - t), 2) * t * curve.getCtrlX1())
+ (3 * (1 - t) * t * t * curve.getCtrlX2())
+ (t * t * t * curve.getX2());
double ry =
((Math.pow((1 - t), 3) * curve.getY1()))
+ (3 * Math.pow((1 - t), 2) * t * curve.getCtrlY1())
+ (3 * (1 - t) * t * t * curve.getCtrlY2())
+ (t * t * t * curve.getY2());
return new Point2D.Float((float) rx, (float) ry);
}
private double vectorAbs(Vector<Double> vector) {
double totalX = 0;
for (Double x : vector) totalX += Math.pow(x, 2);
return Math.sqrt(totalX);
}