Method GetAttributeValueAsInt

IO/MINC/vtkMINCImageAttributes.cxx:669–706

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//------------------------------------------------------------------------------
int vtkMINCImageAttributes::GetAttributeValueAsInt(const char* variable, const char* attribute)
{
  vtkDataArray* array = this->GetAttributeValueAsArray(variable, attribute);

  if (array == nullptr)
  {
    vtkErrorMacro("The attribute " << variable << ":" << attribute << " was not found.");
    return 0;
  }

  if (array->GetDataType() == VTK_CHAR)
  {
    const char* text = this->ConvertDataArrayToString(array);
    auto result = vtk::scan_int<int>(std::string_view(text));
    // Check for complete conversion
    if (result && *text != '\0')
    {
      return result->value();
    }
  }
  else if (array->GetNumberOfTuples() == 1)
  {
    switch (array->GetDataType())
    {
      case VTK_SIGNED_CHAR:
      case VTK_UNSIGNED_CHAR:
      case VTK_SHORT:
      case VTK_INT:
        return static_cast<int>(array->GetComponent(0, 0));
      default:
        break;
    }
  }

  vtkErrorMacro("GetAttributeValueAsInt() used on non-integer attribute " << variable << ":"
                                                                          << attribute << ".");
  return static_cast<int>(array->GetComponent(0, 0));
}

//------------------------------------------------------------------------------
double vtkMINCImageAttributes::GetAttributeValueAsDouble(