PoleAxis Class Reference

#include <poleaxis.h>

Static Public Member Functions
static Rotations::V3	dirCos (const dms primary, const dms secondary)
static Rotations::V3	dirCos (const SkyPoint sp)
static Rotations::V3	poleAxis (SkyPoint p1, SkyPoint p2, SkyPoint p3)
static dms	primary (Rotations::V3 dirCos)
static dms	secondary (Rotations::V3 dirCos)
static SkyPoint	skyPoint (Rotations::V3 dc)

Detailed Description

PoleAxis class handles determining the mount Ha axis position given three positions taken with the same mount declination.

Author

Chris Rowland

Version

1.0

Definition at line 20 of file poleaxis.h.

Member Function Documentation

dirCos() [1/2]

Rotations::V3 PoleAxis::dirCos ( const dms primary, const dms secondary )

static

dirCos converts primary and secondary angles to a directional cosine

Parameters

primary	angle, can be Ra, Ha, Azimuth or the corresponding axis values
secondary	angle, can be Dec, Altitude. 90 deg is the pole

Returns

V3 containing the directional cosine.

Definition at line 55 of file poleaxis.cpp.

dirCos() [2/2]

Rotations::V3 PoleAxis::dirCos ( const SkyPoint sp )

static

dirCos converts a SkyPoint to a directional cosine

Parameters

sp	SkyPoint with the position

Returns

V3 containing the directional cosine.

Definition at line 63 of file poleaxis.cpp.

poleAxis()

Rotations::V3 PoleAxis::poleAxis ( SkyPoint p1, SkyPoint p2, SkyPoint p3 )

static

poleAxis returns the pole axis vector given three SkyPoints with the same mount declination

Parameters

p1
p2
p3

Returns

vector giving the direction of the pole. The rotation between the three points determines which pole the other pole can be determined either by reversing the sign of the declination and adding 12 hrs to the Ha or by negating the vector

Definition at line 87 of file poleaxis.cpp.

primary()

dms PoleAxis::primary ( Rotations::V3 dirCos )

static

primary returns the primary dms value in the directional cosine

Parameters

dirCos

Returns

primary angle, Ra, Ha, Azimuth etc.

Definition at line 68 of file poleaxis.cpp.

secondary()

dms PoleAxis::secondary ( Rotations::V3 dirCos )

static

secondary returns the secondary dms angle in the directional cosine

Parameters

dirCos

Returns

Definition at line 75 of file poleaxis.cpp.

skyPoint()

SkyPoint PoleAxis::skyPoint ( Rotations::V3 dc )

static

skyPoint returns a skypoint derived from the directional cosine vector

Parameters

dc

Returns

Definition at line 82 of file poleaxis.cpp.

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The documentation for this class was generated from the following files:

• poleaxis.h
• poleaxis.cpp