fixstars.py

import astrology
import swisseph
import sys

class FixStars:
    """Calculates the positions of the fixstars"""

    NAME = 0
    NOMNAME = 1
    LON = 2
    LAT = 3
    RA = 4
    DECL = 5

    def __init__(self, tjd_ut, flag, names, obl):

        self.data = []
        i = 0
        for k in names:
            self.data.append(['', '', 0.0, 0.0, 0.0, 0.0])
            dat = swisseph.fixstar_ut(','+k, tjd_ut, flag)[0]

            nam = k
            nomnam = ''
            DELIMITER = ','
            if nam.find(DELIMITER) != -1:
                snam = nam.split(DELIMITER)
                nam = snam[0].strip()
                nomnam = snam[1].strip()

            self.data[i][FixStars.NAME] = nam
            self.data[i][FixStars.NOMNAME] = nam
            self.data[i][FixStars.LON] = dat[0]
            self.data[i][FixStars.LAT] = dat[1]
            ra, decl, dist = swisseph.cotrans(dat[0], dat[1], 1.0, -obl)
            self.data[i][FixStars.RA] = ra
            self.data[i][FixStars.DECL] = decl

            i += 1

        self.sort()


    def sort(self):
        num = len(self.data)
        self.mixed = []

        for i in range(num):
            self.mixed.append(i)

        for i in range(num):
            for j in range(num-1):
                if (self.data[j][FixStars.LON] > self.data[j+1][FixStars.LON]):
                    tmp = self.data[j][:]
                    self.data[j] = self.data[j+1][:]
                    self.data[j+1] = tmp[:]
                    tmp = self.mixed[j]
                    self.mixed[j] = self.mixed[j+1]
                    self.mixed[j+1] = tmp