if (xLen == 0 || yLen == 0 || z.length == 0 || f.length == 0 || f[0].length == 0) {
throw new NoDataException();
}
if (xLen != f.length) {
throw new DimensionMismatchException(xLen, f.length);
}
if (xLen != dFdX.length) {
throw new DimensionMismatchException(xLen, dFdX.length);
}
if (xLen != dFdY.length) {
throw new DimensionMismatchException(xLen, dFdY.length);
}
if (xLen != dFdZ.length) {
throw new DimensionMismatchException(xLen, dFdZ.length);
}
if (xLen != d2FdXdY.length) {
throw new DimensionMismatchException(xLen, d2FdXdY.length);
}
if (xLen != d2FdXdZ.length) {
throw new DimensionMismatchException(xLen, d2FdXdZ.length);
}
if (xLen != d2FdYdZ.length) {
throw new DimensionMismatchException(xLen, d2FdYdZ.length);
}
if (xLen != d3FdXdYdZ.length) {
throw new DimensionMismatchException(xLen, d3FdXdYdZ.length);
}
MathUtils.checkOrder(x);
MathUtils.checkOrder(y);
MathUtils.checkOrder(z);
xval = x.clone();
yval = y.clone();
zval = z.clone();
final int lastI = xLen - 1;
final int lastJ = yLen - 1;
final int lastK = zLen - 1;
splines = new TricubicSplineFunction[lastI][lastJ][lastK];
for (int i = 0; i < lastI; i++) {
if (f[i].length != yLen) {
throw new DimensionMismatchException(f[i].length, yLen);
}
if (dFdX[i].length != yLen) {
throw new DimensionMismatchException(dFdX[i].length, yLen);
}
if (dFdY[i].length != yLen) {
throw new DimensionMismatchException(dFdY[i].length, yLen);
}
if (dFdZ[i].length != yLen) {
throw new DimensionMismatchException(dFdZ[i].length, yLen);
}
if (d2FdXdY[i].length != yLen) {
throw new DimensionMismatchException(d2FdXdY[i].length, yLen);
}
if (d2FdXdZ[i].length != yLen) {
throw new DimensionMismatchException(d2FdXdZ[i].length, yLen);
}
if (d2FdYdZ[i].length != yLen) {
throw new DimensionMismatchException(d2FdYdZ[i].length, yLen);
}
if (d3FdXdYdZ[i].length != yLen) {
throw new DimensionMismatchException(d3FdXdYdZ[i].length, yLen);
}
final int ip1 = i + 1;
for (int j = 0; j < lastJ; j++) {
if (f[i][j].length != zLen) {
throw new DimensionMismatchException(f[i][j].length, zLen);
}
if (dFdX[i][j].length != zLen) {
throw new DimensionMismatchException(dFdX[i][j].length, zLen);
}
if (dFdY[i][j].length != zLen) {
throw new DimensionMismatchException(dFdY[i][j].length, zLen);
}
if (dFdZ[i][j].length != zLen) {
throw new DimensionMismatchException(dFdZ[i][j].length, zLen);
}
if (d2FdXdY[i][j].length != zLen) {
throw new DimensionMismatchException(d2FdXdY[i][j].length, zLen);
}
if (d2FdXdZ[i][j].length != zLen) {
throw new DimensionMismatchException(d2FdXdZ[i][j].length, zLen);
}
if (d2FdYdZ[i][j].length != zLen) {
throw new DimensionMismatchException(d2FdYdZ[i][j].length, zLen);
}
if (d3FdXdYdZ[i][j].length != zLen) {
throw new DimensionMismatchException(d3FdXdYdZ[i][j].length, zLen);
}
final int jp1 = j + 1;
for (int k = 0; k < lastK; k++) {
final int kp1 = k + 1;