TrackAzimuth Class Reference

Track across the sky in azimuth. More...

#include <activities.h>

Inheritance diagram for TrackAzimuth:

Public Member Functions
	TrackAzimuth (TelescopeController *, State *, double speed)
	Create a new activity which tracks across the sky in azimuth. More...
ms_t	start (ms_t)
	The activity will be started by the main loop calling the start function. More...
Public Member Functions inherited from ScheduleFollowing
virtual void	cancel (void)
	Cancel the activity. More...
virtual ms_t	poke (ms_t t)
	From time to time, the main loop will 'poke' this activity, by calling this function. More...
virtual void	at_endstop (ms_t t, int az_click_count, int alt_click_count)
	The method called when the system detects a timeout, at the limit of an axis's travel. More...
Public Member Functions inherited from Activity
virtual void	az_click (ms_t t, double azimuth)
	The method called when the system detects an azimuthal click. More...
virtual void	alt_click (ms_t t, double altitude)
	The method called when the system detects an altitude click. More...
bool	is_complete (void) const
	Return true if the activity is complete. More...
bool	is_valid (void) const
	Return true if the activity is valid. More...
ActivityTypes	type (void)
	Return the type of Activity.

Additional Inherited Members
Public Types inherited from Activity
enum	ActivityTypes {   BaseActivity, CalibrationActivity, ScheduleFollowingActivity, DriveAzAltActivity,   TrackSiderealActivity, TrackAzimuthActivity }
	The activity types here correspond to the this class and its subclasses. More...
Static Public Member Functions inherited from Activity
static void *	operator new (size_t size)
	Allocate space for an Activity. More...
static void	operator delete (void *p)
	Deallocate an Activity.
static int	max_activities (void)
	Return the maximum number of activities it's possible to have allocated at one time. More...
static int	n_activities (void)
	Return the number of currently allocated activities. More...
static void	delete_all_allocations (void)
	Delete all activity allocations. More...
Protected Member Functions inherited from ScheduleFollowing
	ScheduleFollowing (TelescopeController *, State *, ActivityTypes)
	Create an instance of the activity.
Protected Member Functions inherited from Activity
void	mark_as_complete (void)
	Set to true by a derived class when its work is done. More...
void	mark_as_invalid (void)
	Mark the activity as invalid. More...
	Activity (TelescopeController *, State *, ActivityTypes)
	Construct an activity base-class.
Protected Attributes inherited from Activity
State *const	state
	The state which we are to manipulate.
TelescopeController *const	controller
	The controller object provides methods for physically moving the telescope.
byte	activity_status
	The internal status of the object: complete / invalid. More...

Detailed Description

Track across the sky in azimuth.

This corresponds to a rotation about the zenith (ie, in increasing azimuth/westwards).

Constructor & Destructor Documentation

TrackAzimuth::TrackAzimuth	(	TelescopeController *	tc,
		State *	state,
		double	speed
	)

Create a new activity which tracks across the sky in azimuth.

Parameters

tc	a pointer to the telescope control object
state	the current state of the telescope
speed	the required tracking speed, in rad/s

Member Function Documentation

ms_t TrackAzimuth::start ( ms_t  now )

virtual

The activity will be started by the main loop calling the start function.

Returns

the time at which the activity should next be poked (return TIME_NEVER to avoid being poked again).

See also

poke(ms_t)

Reimplemented from ScheduleFollowing.

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

• activities.h
• activities.cpp