copyTo<R extends Box>  method 
Copies this box to a new box created by the factory.
Implementation
R copyTo<R extends Box>(CreateBox<R> factory) => factory.call(
      minX: minX,
      minY: minY,
      minZ: minZ,
      minM: minM,
      maxX: maxX,
      maxY: maxY,
      maxZ: maxZ,
      maxM: maxM,
    );