# -*- coding: utf-8 -*-
#
# grid_iaf_irr.py
#
# This file is part of NEST.
#
# Copyright (C) 2004 The NEST Initiative
#
# NEST is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# NEST 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with NEST.  If not, see <http://www.gnu.org/licenses/>.

"""
Spatial networks: Freely placed neurons
---------------------------------------

Create 12 freely placed iaf_psc_alpha neurons.

BCCN Tutorial @ CNS*09
Hans Ekkehard Plesser, UMB
"""

import matplotlib.pyplot as plt
import nest

nest.ResetKernel()

pos = nest.spatial.free([nest.random.uniform(-0.75, 0.75), nest.random.uniform(-0.5, 0.5)], extent=[2.0, 1.5])

l1 = nest.Create("iaf_psc_alpha", 12, positions=pos)

nest.PrintNodes()

nest.PlotLayer(l1, nodesize=50)

# beautify
plt.axis([-1.0, 1.0, -0.75, 0.75])
plt.axes().set_aspect("equal", "box")
plt.axes().set_xticks((-0.75, -0.25, 0.25, 0.75))
plt.axes().set_yticks((-0.5, 0, 0.5))
plt.grid(True)
plt.xlabel("Extent: 2.0")
plt.ylabel("Extent: 1.5")

plt.show()

# plt.savefig('grid_iaf_irr.png')