API Reference

Python API documentation for tetra3rs, auto-generated from type stubs.

Core Classes

Class	Description
SolverDatabase	Star pattern database — generate, save/load, and solve
CameraModel	Camera intrinsics — focal length, optical center, parity, distortion
SolveResult	Plate-solve result — attitude, WCS, matched stars, pixel↔sky conversions
CalibrateResult	Camera calibration result — fitted camera model and statistics

Centroid Extraction

Symbol	Description
extract_centroids()	Extract star centroids from an image array
ExtractionResult	Extraction result with centroids and image statistics
Centroid	A single star centroid with position, brightness, and shape

Distortion Models

Class	Description
RadialDistortion	Radial (k1, k2, k3) distortion model
PolynomialDistortion	SIP-like polynomial distortion model
DistortionFitResult	Result of distortion fitting

Module-Level Functions

Function	Description
earth_barycentric_velocity()	Approximate Earth barycentric velocity for aberration correction
undistort_centroids()	Apply inverse distortion to a list of centroids
distort_centroids()	Apply forward distortion to a list of centroids