visao.VisAO Class Reference

Public Member Functions
def	__init__ (self)
def	connect (self)
def	take_control (self)
def	giveup_control (self)
def	post_acq (self)
def	setup (self, filter2, filter3)
def	take_darks (self, ndarks)
def	take_flats (self, nflt)
def	take_science (self, nsci)
def	take_linearity (self, nims, etimes)
def	science
def	observation
def	dither
def	dither_phot
def	flats_old
def	telemetry_cal
def	take_ron (self, nf2500, nf250, nf80)

Public Attributes
	focus
	ccd47
	gimbal
	shutter
	fw2
	fw3
	bcu39
	fw39

Detailed Description

   Class to control the VisAO Camera.

Definition at line 31 of file visao.py.

Member Function Documentation

def visao.VisAO.take_linearity	(		self,
			nims,
			etimes
	)

   Take a linearity curve.  
 
   Takes darks and science frames at a sequence of exposure times.
 
   nims     =   number of darks and science frames to take at each exposure time
   etimes   = exposure times, e.g. [.3, .5, .75, 1.0, 2.0, 3.0], in secs

Definition at line 165 of file visao.py.

References visao.VisAO.take_darks(), and visao.VisAO.take_science().

def visao.VisAO.science	(		self,
			totexp,
			exptime,
			masterdarks,
			darkint,
			ndark,
			dirname = "science",
			appendts = 1,
			subroutine = 0
	)

   Take a science data set  
 
   Takes science images until a specified total exposure time is reached.  Takes darks at intervals.
   Other than exposure time, assumes camera is set up as you prefer.
 
   totexp      =   total science exposure time, in seconds
   exptime     =   exposure time of individual images, in seconds
   masterdarks = number of darks to take at beginning of script
   darkint     =   interval between dark sets, in seconds
   ndark       =   number of dark frames to take 
   dirname     =   base name of directory to store images in, default is "science"
   appendts    =   append the standard VisAO timestamp, default is 1 (yes).  set to 0 for no. 

Definition at line 196 of file visao.py.

References visao.VisAO.connect(), visao.VisAO.giveup_control(), visao.VisAO.science(), visao.VisAO.take_control(), visao.VisAO.take_darks(), and visao.VisAO.take_science().

Referenced by visao.VisAO.science().

def visao.VisAO.dither	(		self,
			dx,
			dy,
			ims,
			ndarks,
			subdir = "",
			appendts = 1,
			giveup = 1
	)

   Take data in a dither pattern.
   
   Takes darks at the beginning, then takes science images at each gimbal position specified in dx,dy.
   
   dx = gimbal x positions (mm)
   dy = gimbal y positions (mm)
   ims = number of science images to take at each position.
   ndarks = number of drks to take at the beginning
   subdir = optional subdirectory.  if not specified, then dither_[timestamp] will be used
   appendts = append the standard VisAO timestamp, default is 1 (yes).  set to 0 for no. 
   giveup = if set 1 one, then control will be taken and given up at the end of the dither

Definition at line 474 of file visao.py.

References visao.VisAO.giveup_control(), visao.VisAO.take_control(), visao.VisAO.take_darks(), and visao.VisAO.take_science().

Referenced by visao.VisAO.dither_phot().

def visao.VisAO.dither_phot	(		self,
			filters,
			nims,
			ndarks,
			dx,
			dy,
			subdir = "",
			appendts = 1
	)

   Take data in a dither pattern in multiple filters.
   
   Takes darks at the beginning of each filter, then takes science images at each gimbal position specified in dx,dy.
   Then changes filters and repeats.  Focus stage is moved to appropriate preset after each filter change.
    
   filters = list of filters to cycle through
   nims = the number of science images to take in each dither position per filter
   ndarks = the number of initial darks to take
   dx = gimbal x offsets from initial position, in mm
   dy = gimbal y offsets from initial position, in mm
   subdir = optional subdirectory.  if not specified, then dither_[timestamp] will be used
   #appendts = append the standard VisAO timestamp, default is 1 (yes).  set to 0 for no. 

Definition at line 596 of file visao.py.

References visao.VisAO.connect(), visao.VisAO.dither(), visao.VisAO.giveup_control(), visao.VisAO.take_control(), visao.VisAO.take_darks(), and visao.VisAO.take_flats().

def visao.VisAO.telemetry_cal	(		self,
			tottime,
			fast_darks,
			slow_darks,
			pset = 0
	)

   Take a telemetry data set with simultaneous focal plane data.  Takes fast frames and slow frames
   
   tottime = total time of the measurement in seconds
   fast_darks = number of fast darks to take
   slow_darks = number of slow dards to take
   
   pset = the program set.  pset=0 means 1024 and 64, pset=1 means 512 and 32

Definition at line 753 of file visao.py.

References visao.VisAO.take_darks(), and visao.VisAO.take_science().

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

• visao.py