novas_transform Struct Reference

A transformation between two astronomical coordinate systems for the same observer location and time. More...

#include <novas.h>

Public Attributes
struct novas_frame	frame
	The observer place and time for which the transform is valid.
enum novas_reference_system	from_system
	The original coordinate system.
struct novas_matrix	matrix
	Transformation matrix elements.
enum novas_reference_system	to_system
	The final coordinate system.

Detailed Description

A transformation between two astronomical coordinate systems for the same observer location and time.

This allows for more elegant, generic, and efficient coordinate transformations than the low-level NOVAS functions.

The transformation can be (should be) initialized via novas_make_transform(), or via novas_invert_transform().

Since

1.1

See also

novas_make_transform(), novas_invert_transform(), NOVAS_TRANSFORM_INIT

novas_transform_vector(), novas_transform_sky_pos()

Member Data Documentation

frame

struct novas_frame novas_transform::frame

The observer place and time for which the transform is valid.

Referenced by novas_make_transform().

from_system

enum novas_reference_system novas_transform::from_system

The original coordinate system.

Referenced by novas_make_transform().

matrix

struct novas_matrix novas_transform::matrix

Transformation matrix elements.

Referenced by novas_invert_transform(), and novas_make_transform().

to_system

enum novas_reference_system novas_transform::to_system

The final coordinate system.

Referenced by novas_make_transform().