19 return (this->stripX < index.
stripX) ||
20 (this->stripX == index.
stripX && this->stripV < index.
stripV)||
21 (this->stripX == index.
stripX && this->stripV == index.
stripV && this->gridX < index.
gridX)||
22 (this->stripX == index.
stripX && this->stripV == index.
stripV && this->gridX == index.
gridX && this->gridV < index.
gridV)||
23 (this->stripX == index.
stripX && this->stripV == index.
stripV && this->gridX == index.
gridX && this->gridV == index.
gridV && this->sheet < index.
sheet );