Method SetAttribute

Common/DataModel/vtkDataSetAttributes.cxx:1634–1674

------------------------------------------------------------------------------ This method lets the user add an array and make it the current scalars, vectors etc... (this is determined by the attribute type which is an enum defined vtkDataSetAttributes)

// scalars, vectors etc... (this is determined by the attribute type
// which is an enum defined vtkDataSetAttributes)
int vtkDataSetAttributes::SetAttribute(vtkAbstractArray* aa, int attributeType)
{
  if (aa && attributeType != PEDIGREEIDS && !vtkArrayDownCast<vtkDataArray>(aa))
  {
    vtkWarningMacro("Can not set attribute "
      << vtkDataSetAttributes::AttributeNames[attributeType]
      << ". This attribute must be a subclass of vtkDataArray.");
    return -1;
  }
  if (aa && !this->CheckNumberOfComponents(aa, attributeType))
  {
    vtkWarningMacro("Can not set attribute " << vtkDataSetAttributes::AttributeNames[attributeType]
                                             << ". Incorrect number of components.");
    return -1;
  }

  int currentAttribute = this->AttributeIndices[attributeType];

  // If there is an existing attribute, replace it
  if ((currentAttribute >= 0) && (currentAttribute < this->GetNumberOfArrays()))
  {
    if (this->GetAbstractArray(currentAttribute) == aa)
    {
      return currentAttribute;
    }
    this->RemoveArray(currentAttribute);
  }

  if (aa)
  {
    // Add the array
    currentAttribute = this->AddArray(aa);
    this->AttributeIndices[attributeType] = currentAttribute;
  }
  else
  {
    this->AttributeIndices[attributeType] = -1; // attribute of this type doesn't exist
  }
  this->Modified();
  return this->AttributeIndices[attributeType];
}

//------------------------------------------------------------------------------
void vtkDataSetAttributes::PrintSelf(ostream& os, vtkIndent indent)