def __init__(self):
"""
Donut class constructor.
"""
SExtractor.__init__(self)
# Basic sextractor configuration for donut detection
self.config['PIXEL_SCALE'] = 0.55
self.config['BACK_TYPE'] = "AUTO"
self.config['SATUR_LEVEL'] = 60000
self.config['DETECT_MINAREA'] = 200
self.config['DETECT_THRESH'] = 10.0
self.config['VERBOSE_TYPE'] = "QUIET"
self.config['PARAMETERS_LIST'] = ["NUMBER",'X_IMAGE', 'Y_IMAGE',
"XWIN_IMAGE", "YWIN_IMAGE",
"FLUX_BEST", "FWHM_IMAGE",
"FLAGS"]
self._useMPI = True
self._mpithreads = 8
self.setCFP(0.*units.meter)
self.setPixScale(0.*units.mm)
self.sign_x = +1.
self.sign_y = +1.
self.sign_u = +1.
self.sign_v = +1.
