def read_parfile(self, parfilename: str = None) -> None:
"""
Read a parameter file and create sub-dictionaries for saving parameters between sessions.
Args:
parfilename: Name of parameter file
"""
if parfilename is None:
parfilename = self.par_file
if parfilename is None:
azcam.AzcamWarning("Parameter file is not defined")
return
self.par_file = parfilename
if not os.path.exists(parfilename):
azcam.AzcamWarning(f"Parameter file not found: {parfilename}")
return
cp = configparser.ConfigParser()
cp.read(parfilename)
sections = cp.sections()
# sectionname & value case sensitive, name is not
for sectionname in sections:
self.par_dict[sectionname] = {}
for name, value in cp.items(sectionname):
name = name.lower()
self.par_dict[sectionname][name] = value
return
def show_menu(configs: dict) -> str:
"""
Interative: Show a menu and wait for selection.
"blank" may be used to display an empty line.
print() is allowed here as this is for interactive use only.
Args:
configs: Dictionary of strings which are menu items
Returns:
string associated with item selected or empty string.
"""
if len(configs) == 1:
choice = configs[list(configs.keys())[0]]
return choice
CONFIRMED = 0
choice = ""
while not CONFIRMED:
print("Select configuration number from list below:\n")
i = 0
for c in configs:
if c == "blank":
print("")
else:
i += 1
print("%1d.....%s" % (i, c))
print("")
print("Enter configuration number: ", end="")
choiceindex = input()
if choiceindex == "q":
azcam.AzcamWarning("Quit detected")
return
try:
choiceindex = int(choiceindex)
except ValueError:
print("Bad keyboard input...try again\n")
continue
choiceindex = int(choiceindex)
choiceindex = choiceindex - 1 # zero based
# remove blanks
for x in configs:
if x == "blank":
configs.remove("blank")
if choiceindex < 0 or choiceindex > len(configs) - 1:
print("invalid selection - %d\n" % (choiceindex + 1))
continue
# get choice
configlist = list(configs.keys()) # is order OK?
choice = configs[configlist[choiceindex]]
CONFIRMED = 1
print("")
return choice
def read_header(self):
"""
Returns telescope header info.
returns [Header[]]: Each element Header[i] contains the sublist (keyword, value, comment, and type).
Example: Header[2][1] is the value of keyword 2 and Header[2][3] is its type.
Type is one of str, int, or float.
"""
if not self.enabled:
azcam.AzcamWarning("telescope not enabled")
return
header = []
data = self.Tserver.azcam_all()
keywords = list(data.keys())
keywords.sort()
list1 = []
for key in list(self.Tserver.keywords):
try:
t = self.header.typestrings[key]
v = data[self.Tserver.keywords[key]]
c = self.header.comments[key]
list1 = [key, v, c, t]
header.append(list1)
except Exception as message:
azcam.log("ERROR", key, message)
continue
# store value in Header
self.header.set_keyword(list1[0], list1[1], list1[2], list1[3])
return header
def get_keyword(self, keyword):
"""
Reads an telescope keyword value.
Keyword is the name of the keyword to be read.
This command will read hardware to obtain the keyword value.
"""
if not self.enabled:
azcam.AzcamWarning(f"{self.description} is not enabled")
return
data = self.Tserver.azcam_all()
keyword = keyword.lower()
reply = data[keyword]
# parse RA and DEC specially
if keyword == "RA":
reply = "%s:%s:%s" % (reply[0:2], reply[2:4], reply[4:])
elif keyword == "DEC":
reply = "%s:%s:%s" % (reply[0:3], reply[3:5], reply[5:])
else:
pass
# store value in Header
self.set_keyword(keyword, reply)
reply, t = self.header.convert_type(reply,
self.header.typestrings[keyword])
return [reply, self.comments[keyword], t]
def wait_for_move(self):
"""
Wait for telescope to stop moving.
"""
if not self.enabled:
azcam.AzcamWarning("telescope not enabled")
return
# loop for up to ~20 seconds
for i in range(200):
reply = self.get_keyword("MOTION")
try:
motion = int(reply[0])
except:
raise azcam.AzcamError("bad MOTION status keyword: %s" %
reply[1])
if not motion:
return
time.sleep(0.1)
# stop the telescope
command = "CANCEL"
reply = self.Tserver.command(command)
raise azcam.AzcamError("stopped motion flag not detected")
def initialize(self) -> None:
"""
Initialize the tool.
"""
if self.initialized:
return
if not self.enabled:
azcam.AzcamWarning(f"{self.description} is not enabled")
return
self.initialized = 1
return
def initialize(self):
"""
Initialize display.
"""
if self.initialized:
return
if not self.enabled:
azcam.AzcamWarning("Display is not enabled")
return
self.set_display(self.default_display)
return
def offset(self, RA, Dec):
"""
Offsets telescope in arcsecs.
"""
if not self.enabled:
azcam.AzcamWarning("telescope not enabled")
return
reply = self.Tserver.comSTEPRA(RA)
reply = self.Tserver.comSTEPDEC(Dec)
# wait for motion to stop
reply = self.wait_for_move()
return
def expose(self, exposure_time=-1, imagetype="", title=""):
"""
Make a complete exposure.
exposure_time is the exposure time in seconds
imagetype is the type of exposure ('zero', 'object', 'flat', ...)
title is the image title.
"""
# allow custom operations
self.start()
azcam.log("Exposure started")
# if last exposure was aborted, warn before clearing flag
if self.exposure_flag == self.exposureflags["ABORT"]:
azcam.AzcamWarning("Previous exposure was aborted")
# begin
if self.exposure_flag != self.exposureflags["ABORT"]:
self.begin(exposure_time, imagetype, title)
# integrate
if self.exposure_flag != self.exposureflags["ABORT"]:
self.integrate()
# readout
if (self.exposure_flag != self.exposureflags["ABORT"]
and self.exposure_flag == self.exposureflags["READ"]):
try:
self.readout()
except azcam.AzcamError:
pass
# end
if self.exposure_flag != self.exposureflags["ABORT"]:
self.end()
self.exposure_flag = self.exposureflags["NONE"]
self.completed = 1
azcam.log("Exposure finished")
# allow custom operations
self.finish()
return
def read_file(self, filename=""):
"""
Read a header file and import the data into the header.
"""
# if no file specified, just skip
if filename == "":
return
if not os.path.exists(filename):
azcam.AzcamWarning("Header file not found:%s" % filename)
return
with open(filename, "r") as f1:
for line in f1.readlines():
line = line.rstrip()
line = line.lstrip()
if line.startswith("#"):
break
if len(line) == 0:
break
tokens = line.split(" ", 1)
keyword = tokens[0]
if keyword == "COMMENT" and len(tokens) == 1:
value = ""
comment = ""
else:
nslash = tokens[1].find("/")
if nslash == -1:
value = tokens[1].strip()
comment = ""
else:
comment = tokens[1][nslash + 1 :].strip()
value = tokens[1][:nslash].strip()
typ, val = azcam.utils.get_datatype(value)
self.set_keyword(keyword, val, comment, typ)
self.filename = filename
return
def initialize(self):
"""
Initializes the telescope interface.
"""
if self.initialized:
return
if not self.enabled:
azcam.AzcamWarning(f"{self.description} is not enabled")
return
self.Tserver = TelescopeNG()
# add keywords
self.define_keywords()
self.initialized = 1
return
def initialize(self):
"""
Initialize Ds9.
:return None:
"""
if self.initialized:
return
if os.name == "posix":
self.xpaset_app = "xpaset"
self.xpaget_app = "xpaget"
self.xpaaccess_app = "xpaaccess"
self.xpans = "xpans"
else:
self.ds9_app = os.path.join(self.root, "ds9.exe")
self.ds9_app = os.path.abspath(self.ds9_app)
self.xpaset_app = os.path.join(self.root, "xpaset.exe")
self.xpaset_app = os.path.abspath(self.xpaset_app)
self.xpaget_app = os.path.join(self.root, "xpaget.exe")
self.xpaget_app = os.path.abspath(self.xpaget_app)
self.xpaaccess_app = os.path.join(self.root, "xpaaccess.exe")
self.xpaaccess_app = os.path.abspath(self.xpaaccess_app)
self.xpans = os.path.join(self.root, "xpans.exe")
self.xpans = os.path.abspath(self.xpans)
if not self.enabled:
azcam.AzcamWarning("Display is not enabled")
return
self.set_display(self.default_display)
self.initialized = 1
return
def display(self, image, extension_number=-1):
"""
Display a file in ds9, making a copy so locking does not occur.
If specified for an MEF file, only extension_number is displayed.
:param image: a filename or an image object
:param int extension_number: FITS extension number of image, -1 for all
:return None:
"""
self.initialize()
# test, could be slow but seems to work nicely
self.set_display()
ds9 = self.host + ":" + self.port
if type(image) == str:
filename1 = azcam.utils.make_image_filename(image)
else:
filename1 = image.filename
ext = os.path.splitext(filename1)[-1]
# copy image file so it is not locked by ds9
filename = os.path.join(tempfile.gettempdir(), "tempdisplayfile" + ext)
shutil.copyfile(filename1, filename)
if ext == ".fits":
im = pyfits.open(filename)
ne = max(0, len(im) - 1)
im.close()
if ne in [0, 1]:
# s = self.xpaset_app + " " + ds9 + "fits iraf < " + filename
s = [self.xpaset_app, ds9, f"fits iraf < {filename}"]
else:
if extension_number == -1:
# s = self.xpaset_app + " " + ds9 + "fits mosaicimage iraf < " + filename
s = [
self.xpaset_app, ds9,
f"fits mosaicimage iraf < {filename}"
]
else:
s = [
self.xpaset_app,
ds9,
"fits",
f"[{extension_number}] < {filename}",
]
elif ext == ".bin":
NumCols, NumRows = self.size_x, self.size_y
s = [
self.xpaset_app,
ds9,
"array",
f"[xdim={NumCols},ydim={NumRows},bitpix=-16] < {filename}",
]
else:
azcam.AzcamWarning("invalid image extension")
return
# execute XPA command to display file
s = " ".join(s)
p = subprocess.Popen(
s,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True,
)
stdout, stderr = p.communicate()
stdout = stdout.decode("utf-8")
return
def guide(self, number_exposures=1):
"""
Make a complete guider exposure sequence.
NumberExposures is the number of exposures to make, -1 loop forever
"""
AbortFlag = 0
number_exposures = int(number_exposures)
# system must be reset once before an exposure can be made
if not azcam.db.tools["controller"].is_reset:
azcam.db.tools["controller"].reset()
# parameters for faster operation
flusharray = self.flush_array
azcam.log("Guide started")
# this loop continues even for errors since data is sent to a seperate client receiving images
LoopCount = 0
while True:
if 0:
self.begin(exposure_time=-1,
imagetype="object",
title="guide image")
# integrate
self.integrate()
# readout
if self.exposure_flag == self.exposureflags["READ"]:
try:
self.readout()
self.guide_status = 1 # image read OK
self.guide_image_copy = self.image
except Exception:
self.guide_status = 2 # image not read OK, but don't stop guide loop
self.image = self.guide_image_copy
# image writing
self.end()
self.exposure_flag = self.exposureflags["NONE"]
else:
self.expose(-1, "object", "guide image")
AbortFlag = azcam.db.abortflag
if AbortFlag:
break
if number_exposures == -1:
continue
else:
LoopCount += 1
if LoopCount >= number_exposures:
break
# finish
self.guide_status = 0
self.flush_array = flusharray
if AbortFlag:
azcam.AzcamWarning("Guide aborted")
else:
azcam.log("Guide finished")
return
def set_par(self, parameter: str, value: typing.Any = None) -> None:
"""
Set the value of a parameter in the parameters dictionary.
Args:
parameter (str): name of the parameter
value (Any): value of the parameter. Defaults to None.
Returns:
None
"""
parameter = parameter.lower()
if azcam.db.mode == "console":
try:
azcam.db.tools["server"].command(f"parameters.set_par {parameter} {value}")
except azcam.AzcamError:
return
return None
# special cases
if parameter == "imagefilename":
azcam.db.tools["exposure"].image.filename = value
return None
elif parameter == "imagetitle":
if value is None or value == "" or value == "None":
azcam.db.tools["exposure"].set_image_title("")
else:
azcam.db.tools["exposure"].set_image_title(f"{value}")
return None
elif parameter == "exposuretime":
azcam.db.tools["exposure"].set_exposuretime(value)
return None
elif parameter == "logcommands":
azcam.db.tools["cmdserver"].logcommands = int(value)
return None
# parameter must be in parameters
try:
attribute = azcam.db.pardict[parameter]
except KeyError:
azcam.AzcamWarning(f"Parameter {parameter} not available for set_par")
return None
# object must be a tool
tokens = attribute.split(".")
numtokens = len(tokens)
if numtokens < 2:
azcam.log("%s not valid for parameter %s" % (attribute, parameter))
return None
# first try to set value type
_, value = azcam.utils.get_datatype(value)
object1 = tokens[0]
# run through tools
try:
obj = azcam.db.tools[object1]
for i in range(1, numtokens - 1):
obj = getattr(obj, tokens[i])
# last time is actual object
try:
setattr(obj, tokens[-1], value)
except AttributeError:
pass
# azcam.AzcamWarning(f"Could not set parameter: {parameter}")
except KeyError:
pass
return None
def get_par(self, parameter: str) -> typing.Any:
"""
Return the value of a parameter in the parameters dictionary.
Args:
parameter (str): name of the parameter
Returns:
value (Any): value of the parameter
"""
parameter = parameter.lower()
value = None
if azcam.db.mode == "console":
try:
reply = azcam.db.tools["server"].command(f"parameters.get_par {parameter}")
except azcam.AzcamError:
return
_, value = azcam.utils.get_datatype(reply)
return value
# special cases
if parameter == "imagefilename":
value = azcam.db.tools["exposure"].get_filename()
return value
elif parameter == "imagetitle":
value = azcam.db.tools["exposure"].get_image_title()
return value
elif parameter == "exposuretime":
value = azcam.db.tools["exposure"].get_exposuretime()
return value
elif parameter == "exposurecompleted":
value = azcam.db.tools["exposure"].finished()
return value
elif parameter == "exposuretimeremaining":
value = azcam.db.tools["exposure"].get_exposuretime_remaining()
return value
elif parameter == "pixelsremaining":
value = azcam.db.tools["exposure"].get_pixels_remaining()
return value
elif parameter == "camtemp":
value = azcam.db.tools["tempcon"].get_temperatures()[0]
return value
elif parameter == "dewtemp":
value = azcam.db.tools["tempcon"].get_temperatures()[1]
return value
elif parameter == "temperatures":
camtemp = azcam.db.tools["tempcon"].get_temperatures()[0]
dewtemp = azcam.db.tools["tempcon"].get_temperatures()[1]
return [camtemp, dewtemp]
elif parameter == "logcommands":
value = azcam.db.tools["cmdserver"].logcommands
return value
elif parameter == "wd":
value = azcam.utils.curdir()
return value
elif parameter == "logdata":
value = azcam.db.logger.get_logdata()
return value
# parameter must be in parameters
try:
attribute = azcam.db.pardict[parameter]
except KeyError:
azcam.AzcamWarning(f"Parameter {parameter} not available for get_par")
return None
tokens = attribute.split(".")
numtokens = len(tokens)
# a tool and attribute is required
if numtokens == 1:
return None
object1 = tokens[0]
# object1 must be a tool
try:
obj = azcam.db.tools[object1]
for i in range(1, numtokens):
try:
obj = getattr(obj, tokens[i])
except AttributeError:
pass
value = obj # last time is value
except KeyError:
value = None
return value
