WedgeAp

WedgeAp(
    positions,
    r_in,
    r_out,
    theta_in,
    dtheta_in,
    theta_out=None,
    dtheta_out=None,
    plot_samples=96,
    *,
    validate=True,
)

Annular wedge aperture in pixel coordinates.

A wedge is bounded by inner and outer circular arcs, with straight sides connecting the corresponding arc endpoints. Angles are in radians, measured counterclockwise from the positive image x axis. dtheta_* values are full angular widths. If theta_out or dtheta_out is None, the corresponding inner value is used, giving the constant-width annular sector used by wedge-photometry workflows.

Parameters

positions : tuple or array - like

Aperture center or centers as (x, y) pixel coordinates. Multiple centers are accepted as an (N, 2) array-like object.

r_in : float

Inner and outer radii in pixels. r_out must be larger than r_in and r_in must be positive.

r_out : float

Inner and outer radii in pixels. r_out must be larger than r_in and r_in must be positive.

theta_in : float

Center angle and full angular width at r_in. dtheta_in must be in (0, 2*pi).

dtheta_in : float

Center angle and full angular width at r_in. dtheta_in must be in (0, 2*pi).

theta_out : float = None

Center angle and full angular width at r_out. dtheta_out must be in (0, 2*pi). Missing values default to the corresponding inner value.

dtheta_out : float = None

Center angle and full angular width at r_out. dtheta_out must be in (0, 2*pi). Missing values default to the corresponding inner value.

plot_samples : int = 96

Even number of samples used to draw the two circular arcs.

validate : bool = True

If False, skip input validation and assume finite, ordered geometry and normalized positions.

Attributes

Name	Description
area	Analytic wedge area, before image clipping or bad-pixel masking.