def _remove_texttuple(self, pos):
        """Remove a texttuple from the value in the plotter

        Parameters
        ----------
        pos: tuple (x, y, cs)
            x and y are the x- and y-positions and cs the coordinate system"""
        for i, (old_x, old_y, s, old_cs, d) in enumerate(self.value):
            if (old_x, old_y, old_cs) == pos:
                self.value.pop(i)
                return
        raise ValueError("{0} not found!".format(pos))
Remove a texttuple from the value in the plotter

        Parameters
        ----------
        pos: tuple (x, y, cs)
            x and y are the x- and y-positions and cs the coordinate system