Function FunctionValues

Common/Math/vtkFunctionSet.h:38–38

* Evaluate functions at x_j. * x and f have to point to valid double arrays of appropriate * sizes obtained with GetNumberOfFunctions() and * GetNumberOfIndependentVariables. * If you inherit this class, make sure to reimplement at least one of the two * FunctionValues signatures. */

   * FunctionValues signatures.
   */
  virtual int FunctionValues(double* x, double* f) { return this->FunctionValues(x, f, nullptr); }
  virtual int FunctionValues(double* x, double* f, void* vtkNotUsed(userData))
  {
    return this->FunctionValues(x, f);