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#!/usr/bin/python
#######################################################
# Copyright (c) 2015, ArrayFire
# All rights reserved.
#
# This file is distributed under 3-clause BSD license.
# The complete license agreement can be obtained at:
# http://arrayfire.com/licenses/BSD-3-Clause
########################################################
import arrayfire as af
import math
POINTS = 10000
PRECISION = 1.0 / float(POINTS)
val = -math.pi
X = math.pi * (2 * (af.range(POINTS) / POINTS) - 1)
win = af.Window(512, 512, "2D Plot example using ArrayFire")
sign = 1.0
while not win.close():
Y = af.sin(X)
win.plot(X, Y)
X += PRECISION * sign
val += PRECISION * sign
if (val > math.pi):
sign = -1.0
elif (val < -math.pi):
sign = 1.0
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