parameters: (self, asNumpy=False)
return_statement: return self.boxVectors
docstring: Get the periodic box vectors.
  
          Parameters
          ----------
          asNumpy : bool=False
              if true, the values are returned as a numpy array instead of a list
              of Vec3s
docstring_summary: Get the periodic box vectors.
docstring_tokens: Get the periodic box vectors .
function: def getBoxVectors(self, asNumpy=False):
          """Get the periodic box vectors.
  
          Parameters
          ----------
          asNumpy : bool=False
              if true, the values are returned as a numpy array instead of a list
              of Vec3s
          """
          if self.boxVectors is None:
              raise AttributeError('Box information not found in %s' % self.file)
          if asNumpy:
              if self._numpyBoxVectors is None:
                  self._numpyBoxVectors = []
                  self._numpyBoxVectors.append(Quantity(np.array(self.boxVectors[0].value_in_unit(nanometers)), nanometers))
                  self._numpyBoxVectors.append(Quantity(np.array(self.boxVectors[1].value_in_unit(nanometers)), nanometers))
                  self._numpyBoxVectors.append(Quantity(np.array(self.boxVectors[2].value_in_unit(nanometers)), nanometers))
              return self._numpyBoxVectors
          return self.boxVectors
function_tokens: def getBoxVectors ( self , asNumpy = False ) : if self . boxVectors is None : raise AttributeError ( 'Box information not found in %s' % self . file ) if asNumpy : if self . _numpyBoxVectors is None : self . _numpyBoxVectors = [ ] self . _numpyBoxVectors . append ( Quantity ( np . array ( self . boxVectors [ 0 ] . value_in_unit ( nanometers ) ) , nanometers ) ) self . _numpyBoxVectors . append ( Quantity ( np . array ( self . boxVectors [ 1 ] . value_in_unit ( nanometers ) ) , nanometers ) ) self . _numpyBoxVectors . append ( Quantity ( np . array ( self . boxVectors [ 2 ] . value_in_unit ( nanometers ) ) , nanometers ) ) return self . _numpyBoxVectors return self . boxVectors