Method GetNodeValue

Rendering/Core/vtkColorTransferFunction.cxx:1370–1388

------------------------------------------------------------------------------ For a specified index value, get the node parameters

//------------------------------------------------------------------------------
// For a specified index value, get the node parameters
int vtkColorTransferFunction::GetNodeValue(int index, double val[6])
{
  int size = static_cast<int>(this->Internal->Nodes.size());

  if (index < 0 || index >= size)
  {
    vtkErrorMacro("Index out of range!");
    return -1;
  }

  val[0] = this->Internal->Nodes[index]->X;
  val[1] = this->Internal->Nodes[index]->R;
  val[2] = this->Internal->Nodes[index]->G;
  val[3] = this->Internal->Nodes[index]->B;
  val[4] = this->Internal->Nodes[index]->Midpoint;
  val[5] = this->Internal->Nodes[index]->Sharpness;

  return 1;
}

//------------------------------------------------------------------------------
// For a specified index value, get the node parameters