def degree_to_visca(value, what, flip=False):
if what == 'pan':
# value must be between -170 & 170
if value >= 0:
old_min = 0
old_max = 170
new_min = 0
new_max = 7708
else:
old_min = -170
old_max = 0
new_min = 57829
new_max = 65535
elif what == 'tilt':
# value must be between -20 & 90
if value >= 0:
old_min = 0
old_max = 90
new_min = 0
new_max = 4080
else:
old_min = -20
old_max = 0
new_min = 61455
new_max = 65535
if flip:
# value must be between -90 & 20
pass
print('flip function is not yet implemented for tilt')
return int(scale(value, old_min, old_max, new_min, new_max))
def visca_to_degree(value, what, flip=False):
if what == 'pan':
# value must be between -170 & 170
# value must be between -170 & 170
if value <= 7708:
old_min = 0
old_max = 7708
new_min = 0
new_max = 170
else:
old_min = 57829
old_max = 65535
new_min = -170
new_max = 0
elif what == 'tilt':
# value must be between -20 & 90
if value <= 4080:
old_min = 0
old_max = 4080
new_min = 0
new_max = 90
else:
old_min = 61455
old_max = 65535
new_min = -20
new_max = 0
if flip:
# value must be between -90 & 20
print('flip function is not yet implemented for tilt')
value = scale(value, old_min, old_max, new_min, new_max)
return round(value, 1)
def _query(self, function=None):
"""
Query method needs a parameter as argument
:Return False if no parameter is provided
:Return False if parameter provided does not exist
:Return
"""
if not function:
# maybe we could dump all functions if no function value is present
# or maybe add a 'all' function?
return False
if debug == 4:
print('QUERY', function)
if function == 'pan' or function == 'tilt':
# pan and tilt are separate properties.
# If we want to automatically query all properties, we must catch it here
function = 'pan_tilt'
# transform the property into its code (located in the __init__file of the package)
if function in queries:
subcmd = queries.get(function)
else:
if debug:
# there is no code for this function
dbg = 'ERROR 42 - function {function} has not yet been implemented'
print(dbg.format(function=function))
return False
# query starts with '\x09'
query = '\x09' + subcmd
if debug == 4:
dbg = 'send {function} query : {query}'
print(dbg.format(function=function, query=query.encode('hex')))
# wait for the reply
reply = self._come_back(query)
if reply == None:
return self._query(function)
if reply:
if debug == 4:
dbg = 'receive reply : {function} is {reply}'
print(dbg.format(function=function, reply=reply.encode('hex')))
# remove 2 first packets and the last terminator
# FIX ME : We must remove the first hex number elsewhere if we use multiples camera
reply = reply[2:-1].encode('hex')
# transform to a list of int
# FIX ME : found a nicer solution please, it's ugly !!
def hex_unpack(value, listt, size=2):
part = value[:size]
value = value[size:]
listt.append(part)
if value:
hex_unpack(value, listt)
return listt
if len(reply) > 2:
# it's a long answer, convert it to a list
reply = hex_unpack(reply, [])
else:
# it's a single value, just convert it to a valid base 10 integer
reply = int(reply, 16)
if function in high_res_params:
# parameter value is coded on 2 hexa numbers
reply = hex_to_int(reply)
elif function in very_high_res_params:
# parameter value is coded on 4 hexa numbers
reply = hex_to_int(reply)
# Check if the function has a special value to be translated
if function in answers:
# translate visca code to real life value
if reply in answers[function]:
reply = answers[function][reply]
elif function == 'NR' or function == 'gamma' or function == 'chromasuppress':
reply = reply
elif function == 'color_gain' or function == 'color_hue':
reply = int(reply[3], 16)
reply = str(scale(reply, 0, 14, 60, 200))
if function == 'color_gain':
reply = reply + '%'
else:
reply = reply + '°'
elif function == 'pan_tilt':
pan = reply[0:4]
tilt = reply[4:8]
pan = hex_to_int(pan)
tilt = hex_to_int(tilt)
pan = visca_to_degree(pan, 'pan')
tilt = visca_to_degree(tilt, 'tilt')
reply = [pan, tilt]
else:
if debug == 4:
print('FIX ME : is it normal that :', function,
'has no translation??')
if debug:
dbg = '{function} is {reply}'
print(dbg.format(function=function, reply=reply))
return reply