Exemplo n.º 1
0
    def save(self):
        utmz, utmx, utmy = util.get_utm(self.latitude, self.longitude)
        self.utm_zone = utmz
        if self.rounding:
            utmx = util.round_to_nearest(utmx, self.rounding)
            utmy = util.round_to_nearest(utmy, self.rounding)
        self.utm_x_rounded = utmx
        self.utm_y_rounded = utmy

        super(Post, self).save()
Exemplo n.º 2
0
def test():
    # cambridge, ma
    myloc_lat = decimal.Decimal("40.77131")
    myloc_lng = decimal.Decimal("-73.95676")

    myz, myx, myy = util.get_utm(myloc_lat, myloc_lng)

    for post in Post.objects.all():
        havdist = util.haversine_gcdist_deg(myloc_lat, myloc_lng, post.latitude, post.longitude)
        z, x, y = util.get_utm(post.latitude, post.longitude)
        if myz != z:
            print "skipping %d; zones differ (%d!=%d)" % (post.id, myz, z)
        else:
            euclidist = util.euclidean_dist(x, y, myx, myy)
            print "%d: %f %f DIFFERENCE FRACTION %f" % (
                post.id,
                havdist,
                euclidist,
                (abs(havdist - euclidist) / havdist),
            )

        post.save()  # hack:update the x,y,z!