radial_elliptical_annulus
- petrofit.photometry.radial_elliptical_annulus(position, r, dr, elong=1.0, theta=0.0)[source]
Helper function given a radius, elongation and theta, will make an elliptical aperture.
- Parameters:
- positiontuple
(x, y) coords for center of aperture
- rint or float
Semi-major radius of the inner ring
- drint or float
Thickness of annulus (outer ring = r + dr).
- elongfloat
Elongation.
- thetafloat
Orientation in rad.
- Returns:
- EllipticalAnnulus