def new_from_file(file):
core_desc = CoreOffsetPositions()
data = np.loadtxt(file, dtype=object)
for epoch, i, r, pa in data:
epoch = datetime.datetime.strptime(epoch, "%Y-%m-%d")
x, y = nputils.coord_rtheta_to_xy(float(r), np.radians(float(pa)))
core_desc.set(epoch, [x, y])
return core_desc
def get_coord(self):
''' Return coord as index: yx'''
return nputils.coord_rtheta_to_xy(self.radius, np.radians(self.theta))[::-1]