# Path: src/python/Utilities.py
# def vect2str(v):
#     return " ".join(map(str, v))
# 
# def BezierToTrajectoryString(Tv, p0v, p1v, p2v, p3v):
#     nchunks = len(Tv)
#     dimension = len(p0v[0])
#     trajectorystring = ""
#     for i in range(nchunks):
#         if i > 0:
#             trajectorystring += "\n"
#         trajectorystring += str(Tv[i]) + "\n" + str(dimension)
#         for j in range(dimension):
#             a, b, c, d = BezierToPolynomial(Tv[i], p0v[i][j], p1v[i][j],
#                                             p2v[i][j], p3v[i][j])
#             trajectorystring += "\n%f %f %f %f" % (d, c, b, a)
#     return trajectorystring


from .Utilities import vect2str, BezierToTrajectoryString
from pylab import double, array, random
from .TOPPbindings import TOPPInstance
    from pylab import figure, clf, hold, plot, gca, axis, title, xlabel, ylabel, cycler
    from pylab import axis, linspace, sqrt, plot
    from pylab import figure, clf, hold, gca, title, xlabel, ylabel, plot, axis, cycler
def VectorFromString(s):
    # left for compatibility TODO: remove?
    s = s.strip(" \n")
    return array([double(x) for x in s.split(' ')])


def GenerateRandomTrajectory(ncurve, ndof, bound):
    def vector2string(v):
        ndof = len(v)
        s = str(ndof)
        for a in v:
            s += ' %f' % a
        return s

    p0a = vector2string(random(ndof) * 2 * bound - bound)
    p0b = vector2string(random(ndof) * 2 * bound - bound)
    p1a = vector2string(random(ndof) * 2 * bound - bound)
    p1b = vector2string(random(ndof) * 2 * bound - bound)
    s = '%d' % ncurve
    s += '\n1.0 ' + p0a + ' ' + p0b
    for k in range(ncurve - 1):
        a = random(ndof) * 2 * bound - bound
        b = random(ndof) * 2 * bound - bound
        c = 2 * b - a
        pa = vector2string(a)
        pb = vector2string(b)
        pc = vector2string(c)
        s += ' ' + pa + ' ' + pb + '\n1.0 ' + pb + ' ' + pc
    s += ' ' + p1a + ' ' + p1b
    Tv, p0v, p1v, p2v, p3v = string2p(s)

# Path: src/python/Utilities.py
# def vect2str(v):
#     return " ".join(map(str, v))
# 
# def BezierToTrajectoryString(Tv, p0v, p1v, p2v, p3v):
#     nchunks = len(Tv)
#     dimension = len(p0v[0])
#     trajectorystring = ""
#     for i in range(nchunks):
#         if i > 0:
#             trajectorystring += "\n"
#         trajectorystring += str(Tv[i]) + "\n" + str(dimension)
#         for j in range(dimension):
#             a, b, c, d = BezierToPolynomial(Tv[i], p0v[i][j], p1v[i][j],
#                                             p2v[i][j], p3v[i][j])
#             trajectorystring += "\n%f %f %f %f" % (d, c, b, a)
#     return trajectorystring


# Path: src/python/TOPPpy.py
from .Utilities import vect2str, BezierToTrajectoryString
from pylab import double, array, random
from .TOPPbindings import TOPPInstance
    from pylab import figure, clf, hold, plot, gca, axis, title, xlabel, ylabel, cycler
    from pylab import axis, linspace, sqrt, plot
    from pylab import figure, clf, hold, gca, title, xlabel, ylabel, plot, axis, cycler

def VectorFromString(s):
    # left for compatibility TODO: remove?
    s = s.strip(" \n")
    return array([double(x) for x in s.split(' ')])


def GenerateRandomTrajectory(ncurve, ndof, bound):
    def vector2string(v):
        ndof = len(v)
        s = str(ndof)
        for a in v:
            s += ' %f' % a
        return s

    p0a = vector2string(random(ndof) * 2 * bound - bound)
    p0b = vector2string(random(ndof) * 2 * bound - bound)
    p1a = vector2string(random(ndof) * 2 * bound - bound)
    p1b = vector2string(random(ndof) * 2 * bound - bound)
    s = '%d' % ncurve
    s += '\n1.0 ' + p0a + ' ' + p0b
    for k in range(ncurve - 1):
        a = random(ndof) * 2 * bound - bound
        b = random(ndof) * 2 * bound - bound
        c = 2 * b - a
        pa = vector2string(a)
        pb = vector2string(b)
        pc = vector2string(c)
        s += ' ' + pa + ' ' + pb + '\n1.0 ' + pb + ' ' + pc
    s += ' ' + p1a + ' ' + p1b
    Tv, p0v, p1v, p2v, p3v = string2p(s)

    return BezierToTrajectoryString(Tv, p0v, p1v, p2v, p3v)