code: def setBoundary(self, viewID, xmin, ymin, xmax, ymax):
          
          self._connection._beginMessage(
              tc.CMD_SET_GUI_VARIABLE, tc.VAR_VIEW_BOUNDARY, viewID, 1 + 8 + 8 + 8 + 8)
          self._connection._string += struct.pack("!Bdddd",
                                                  tc.TYPE_BOUNDINGBOX, xmin, ymin, xmax, ymax)
          self._connection._sendExact()
docs: setBoundary(string, double, double, double, double) -> None
  
          Set the current boundary for the given view (see getBoundary()).