# generate data and write to file
import numpy

set_id   = "sphere"

filename = "data_" + set_id + ".dat"
f = open(filename, 'w')

for iter in range(10000):

    if set_id == "sphere":
        x = numpy.random.uniform(0.0, 255.0, 3)
        x = x / numpy.sqrt(numpy.dot(x,x)) * 255.0
        f.write("%f %f %f\n" % (x[0],x[1],x[2]))

    if set_id == "waves":
        x = numpy.zeros(3)
        x[0] = numpy.random.uniform(0.0, 20.0) # 20
        x[1] = numpy.random.uniform(0.0, 20.0) # 20
        x[2] = numpy.random.uniform(0.0, 7.0) # numpy.random.normal(0.0, 2.0, 1) # ~7
        f.write("%f %f %f\n" % (x[0],x[1],x[2]))

    if set_id == "snake":
        x = numpy.zeros(3)
        x[0] = numpy.random.uniform(0.0, 20.0)
        x[1] = numpy.random.uniform(-x[0]*0.1, x[0]*0.1)
        f.write("%f %f\n" % (x[0],x[1]))

    if set_id == "clusters":
        x = numpy.zeros(3)
        while True:
            x[0] = numpy.random.uniform(0.0, 20.0)
            if x[0] < 5.0 or x[0] > 15.0:
                break
        while True:
            x[1] = numpy.random.uniform(0.0, 20.0)
            if x[1] < 5.0 or x[1] > 15.0:
                break
        f.write("%f %f\n" % (x[0],x[1]))

if set_id == "capitals":
    f.write("19.8172 41.3317\n")  # Albania Tirana
    f.write("1.5218 42.5075\n")   # Andorra Andorra la Vella
    f.write("16.3728 48.2092\n")  # Austria Vienna
    f.write("27.5766 53.9678\n")  # Belarus Minsk
    f.write("4.3676 50.8371\n")   # Belgium Brussels
    f.write("18.4214 43.8608\n")  # Bosnia and Herzegovina Sarajevo
    f.write("23.3238 42.7105\n")  # Bulgaria Sofia
    f.write("15.9785 45.8150\n")  # Croatia Zagreb
    f.write("33.1 35.2\n")        # Cyprus Nicosia
    f.write("14.4205 50.0878\n")  # Czech Republic Prague
    f.write("12.5681 55.6763\n")  # Denmark Copenhagen
    f.write("24.7545 59.4389\n")  # Estonia Tallinn
    f.write("24.9384 60.1699\n")  # Kohonen Country Helsinki
    f.write("2.3510 48.8567\n")   # France Paris
    f.write("13.4115 52.5235\n")  # Germany Berlin
    f.write("23.7166 37.9792\n")  # Greece Athens
    f.write("19.0408 47.4984\n")  # Hungary Budapest
    f.write("-21.8952 64.1353\n") # Iceland Reykjavik
    f.write("-6.2675 53.3441\n")  # Ireland Dublin
    f.write("12.4823 41.8955\n")  # Italy Rome
    f.write("24.1049 56.9465\n")  # Latvia Riga
    f.write("9.5215 47.1411\n")   # Liechtenstein Vaduz
    f.write("25.2799 54.6896\n")  # Lithuania Vilnius
    f.write("6.1296 49.6100\n")   # Luxembourg Luxembourg
    f.write("21.4361 42.0024\n")  # Macedonia Skopje
    f.write("14.5189 35.9042\n")  # Malta Valletta
    f.write("28.8497 47.0167\n")  # Moldova Chisinau
    f.write("7.4189 43.7325\n")   # Monaco Monaco
    f.write("19.2595 42.4602\n")  # Montenegro Podgorica
    f.write("4.8910 52.3738\n")   # Netherlands Amsterdam
    f.write("10.7387 59.9138\n")  # Norway Oslo
    f.write("21.0122 52.2297\n")  # Poland Warsaw
    f.write("-9.1355 38.7072\n")  # Portugal Lisbon
    f.write("26.0979 44.4479\n")  # Romania Bucharest
    f.write("37.6176 55.7558\n")  # Russia Moscow
    f.write("12.4578 43.9424\n")  # San Marino San Marino
    f.write("20.4781 44.8048\n")  # Serbia Belgrade
    f.write("17.1547 48.2116\n")  # Slovakia Bratislava
    f.write("14.5060 46.0514\n")  # Slovenia Ljubljana
    f.write("-3.7033 40.4167\n")  # Spain Madrid
    f.write("18.0645 59.3328\n")  # Sweden Stockholm
    f.write("7.4481 46.9480\n")   # Switzerland Bern
    f.write("30.5367 50.4422\n")  # Ukraine Kiev
    f.write("-0.1262 51.5002\n")  # UK London
    # http://www.nobochamp.com/capitals.htm   European capitals

f.close()