def closeDev(devID='current'):
"""
DES: close selected device
INP: (int) device ID, 'all','current' (default)
"""
global CurrentDev, DevList
if devID in ['current', 'curren', 'curre', 'curr', 'cur']:
__MessHand.longinfo("closing the current device")
ppgplot.pgclos()
DevList.remove(CurrentDev)
if not DevList == []:
ppgplot.pgslct(DevList[0])
CurrentDev = ppgplot.pgqid() # store the actual deviceID
else:
CurrentDev = 0
elif devID in ['all']:
__MessHand.longinfo("closing all devices")
for device in DevList:
ppgplot.pgslct(device)
ppgplot.pgclos()
DevList = []
CurrentDev = 0
elif devID in DevList:
__MessHand.longinfo("closing device " + ` devID `)
ppgplot.pgslct(devID)
ppgplot.pgclos()
DevList.remove(devID)
if devID == CurrentDev and DevList != []:
ppgplot.pgslct(DevList[0])
CurrentDev = ppgplot.pgqid() # store the actual deviceID
else:
ppgplot.pgslct(CurrentDev)
else:
__MessHand.error("this is not an open device: " + ` devID `)
__queryDev()
def closeplot():
"""
closeplot()
Close the currenly opened device, finalizing the plot.
"""
# Close plot
if ppgplot.pgqid()!=0:
ppgplot.pgclos()
else:
sys.stderr.write("Cannot close plot. No pgplot device open.\n")
raise "No open pgplot device"
def __checkReopen():
"""
DES: check if the current device is actually open and usable, or if it
has to be reopenned (e.g. after a plot produced by apexCalibrator)
"""
global CurrentDev, DevList
ppgId = ppgplot.pgqid()
if ppgId != CurrentDev:
CurrentDev = ppgId
ppgplot.pgask(0)
DevList.append(CurrentDev)
def selectDev(devID=''):
"""
DES: select an open device
INP: (int) device ID
"""
global CurrentDev, DevList
if devID in DevList:
ppgplot.pgslct(devID) # select the deviceID
CurrentDev = ppgplot.pgqid() # store the actual pgplot deviceID
else:
__MessHand.error("this is not an open device: " + ` devID `)
__queryDev()
def nextpage(vertical=False):
"""
Start a new page in the currently opened device.
Default is to orient paper horizontally (landscape). If vertical
is True then the paper will be oriented vertically.
"""
# New page
if ppgplot.pgqid()!=0:
ppgplot.pgpage()
ppgplot.pgswin(0,1,0,1)
if vertical:
ppgplot.pgpap(7.9, 11.0/8.5)
else:
ppgplot.pgpap(10.25, 8.5/11.0)
ppgplot.pgiden()
else:
sys.stderr.write("Cannot start new page. No pgplot device open.\n")
raise "No open pgplot device"
def beginplot(fn, vertical=False):
"""
Set up a colour ps plot with filename fn for letter-size paper.
Default is to orient paper horizontally (landscape). If vertical
is True then the paper will be oriented vertically.
"""
if ppgplot.pgqid()!=0:
# ppgplot already has a device open
#
# QUESTION: Should raise error here?
#
pass
else:
# Setup
ppgplot.pgbeg("%s/CPS" % fn, 1, 1)
if vertical:
ppgplot.pgpap(7.9, 11.0/8.5)
else:
ppgplot.pgpap(10.25, 8.5/11.0)
ppgplot.pgiden()
def __queryDev():
"""
DES: query open and current devices
INP: (int) a = message weight
"""
global CurrentDev, DevList
DevList.sort()
CurrentDev = ppgplot.pgqid() # store the actual deviceID
if CurrentDev:
__MessHand.info("current device = " + ` CurrentDev `)
if not CurrentDev in DevList:
# for some reason a device is open and not in the DevList
DevList.append(CurrentDev)
else:
__MessHand.warning("current device = none")
if len(DevList) > 0:
__MessHand.longinfo("open devices = " + ` DevList `)
else:
__MessHand.warning("open devices = none")
