/*=========================================================================

  Program:   ParaView
  Module:    vtkCPLinearScalarFieldFunction.cxx

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "vtkCPLinearScalarFieldFunction.h"

#include "vtkObjectFactory.h"

vtkStandardNewMacro(vtkCPLinearScalarFieldFunction);

//----------------------------------------------------------------------------
vtkCPLinearScalarFieldFunction::vtkCPLinearScalarFieldFunction()
{
  this->Constant = 0;
  this->XMultiplier = 0;
  this->YMultiplier = 0;
  this->ZMultiplier = 0;
  this->TimeMultiplier = 0;
}

//----------------------------------------------------------------------------
vtkCPLinearScalarFieldFunction::~vtkCPLinearScalarFieldFunction()
{
}

//----------------------------------------------------------------------------
double vtkCPLinearScalarFieldFunction::ComputeComponenentAtPoint(
  unsigned int component, double point[3], 
  unsigned long vtkNotUsed(timeStep), double time)
{
  if(component != 0)
    {
    vtkWarningMacro("Bad component value");
    }
  double value = this->Constant + point[0]*this->XMultiplier + 
    point[1]*this->YMultiplier + point[2]*this->ZMultiplier +
    time*this->TimeMultiplier;
  return value;
}

//----------------------------------------------------------------------------
void vtkCPLinearScalarFieldFunction::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os, indent);
  os << indent << "Constant: " << this->Constant << endl;
  os << indent << "XMultiplier: " << this->XMultiplier << endl;
  os << indent << "YMultiplier: " << this->YMultiplier << endl;
  os << indent << "ZMultiplier: " << this->ZMultiplier << endl;
  os << indent << "TimeMultiplier: " << this->TimeMultiplier << endl;
}
