generic_sampler.py
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generic_sampler.py
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			#!/usr/bin/python
			# Copyright (C) 2018 by the RROMPy authors
			#
			# This file is part of RROMPy.
			#
			# RROMPy is free software: you can redistribute it and/or modify
			# it under the terms of the GNU Lesser General Public License as published by
			# the Free Software Foundation, either version 3 of the License, or
			# (at your option) any later version.
			#
			# RROMPy is distributed in the hope that it will be useful,
			# but WITHOUT ANY WARRANTY; without even the implied warranty of
			# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
			# GNU Lesser General Public License for more details.
			#
			# You should have received a copy of the GNU Lesser General Public License
			# along with RROMPy. If not, see <http://www.gnu.org/licenses/>.
			#

			from abc import abstractmethod
			import numpy as np
			from rrompy.utilities.types import Np1D, Tuple, GenExpr

			__all__ = ['GenericSampler']

			class GenericSampler:
			"""ABSTRACT. Generic generator of sample points."""

			def __init__(self, lims:Tuple[Np1D, Np1D]):
			self.lims = lims

			@property
			def lims(self):
			"""Value of lims."""
			return self._lims
			@lims.setter
			def lims(self, lims):
			if len(lims) != 2:
			raise Exception("2 limits must be specified.")
			for j in range(2):
			try:
			len(lims[j])
			except:
			lims[j] = np.array([lims[j]])
			if len(lims[0]) != len(lims[1]):
			raise Exception("The limits must have the same length.")
			self._lims = lims

			@abstractmethod
			def generatePoints(self, n:GenExpr) -> Tuple[Np1D, Np1D]:
			"""Array of points and array of weights."""
			pass