def __call__(self,
infile=None,
displaytype=None,
channel=None,
zoom=None,
outfile=None,
outscale=None,
outdpi=None,
outformat=None,
outlandscape=None,
gui=None):
""" The msview will display measurement sets in raster form
Many display and editing options are available.
examples of usage:
msview
msview "mymeasurementset.ms"
msview "myrestorefile.rstr"
Executing the msview task will bring up a display panel
window, which can be resized. If no data file was specified,
a Load Data window will also appear. Click on the desired data
file and choose the display type; the rendered data should appear
on the display panel.
A Data Display Options window will also appear. It has drop-down
subsections for related options, most of which are self-explanatory.
The state of the msview task -- loaded data and related display
options -- can be saved in a 'restore' file for later use.
You can provide the restore filename on the command line or
select it from the Load Data window.
See the cookbook for more details on using the msview task.
Keyword arguments:
infile -- Name of file to visualize
default: ''
example: infile='my.ms'
If no infile is specified the Load Data window
will appear for selecting data.
displaytype -- (optional): method of rendering data
visually (raster, contour, vector or marker).
You can also set this parameter to 'lel' and
provide an lel expression for infile (advanced).
default: 'raster'
Note: there is no longer a filetype parameter; typing of
data files is now done automatically.
example: msview infile='my.ms'
obsolete: msview infile='my.ms', filetype='ms'
"""
a = inspect.stack()
stacklevel = 0
for k in range(len(a)):
if a[k][1] == "<string>" or (
string.find(a[k][1], 'ipython console') > 0
or string.find(a[k][1], "casapy.py") > 0):
stacklevel = k
myf = sys._getframe(stacklevel).f_globals
#Python script
try:
## vi might not be defined in taskinit if loading
## directly from python via casa.py...
vwr = vi
if type(gui) == bool and gui == False:
vwr = ving
if type(vwr.cwd()) != str:
vwr = None
except:
vwr = None
if type(vwr) == type(None):
need_gui = True
if type(gui) == bool and gui == False:
need_gui = False
if need_gui:
if self.local_vi is not None:
vwr = self.local_vi
else:
vwr = viewertool.viewertool(
True, True, (type(myf) == dict and myf.has_key('casa')
and type(myf['casa']) == type(os)))
self.local_vi = vwr
else:
if self.local_ving is not None:
vwr = self.local_ving
else:
vwr = viewertool.viewertool(
False, True, (type(myf) == dict and myf.has_key('casa')
and type(myf['casa']) == type(os)))
self.local_ving = vwr
if type(vwr) != type(None):
##
## (1) save current *viewer*server* path
## (2) have viewer() task follow casapy/python's cwd
try:
old_path = vwr.cwd()
except:
raise Exception, "msview() failed to get the current working directory"
try:
vwr.cwd(os.path.abspath(os.curdir))
except:
raise Exception, "msview() failed to change to the new working directory"
data = None
if type(infile) == str and len(infile) > 0:
info = vwr.fileinfo(infile)
if info['type'] != 'ms':
if info['type'] == 'image':
raise Exception, "msview() only displays images, try 'imview()'..."
elif info['type'] == 'nonexistent':
raise Exception, "ms (" + infile + ") could not be found..."
else:
raise Exception, "unknow error..."
panel = vwr.panel("viewer")
if type(displaytype) == str:
data = vwr.load(infile, displaytype, panel=panel)
else:
data = vwr.load(infile, panel=panel)
if type(channel) == int and channel > 0:
vwr.channel(channel, panel=panel)
if type(zoom) == int and zoom != 1:
vwr.zoom(zoom, panel=panel)
if type(outfile) == str and len(outfile) > 0:
scale = 1.0
if type(outscale) == float:
scale = outscale
dpi = 300
if type(outdpi) == int:
dpi = outdpi
format = "jpg"
if type(outformat) == str:
format = outformat
orientation = "portrait"
if type(outlandscape) == bool and outlandscape:
orientation = "landscape"
vwr.output(outfile,
scale=scale,
dpi=dpi,
format=format,
orientation=orientation,
panel=panel)
else:
panel = vwr.panel("viewer")
vwr.popup('open', panel=panel)
# it makes no sense to leave a panel open with no way of interacting with it
if type(gui) == bool and not gui:
vwr.close(panel)
## (3) restore original path
try:
vwr.cwd(old_path)
except:
raise Exception, "msview() failed to restore the old working directory"
else:
viewer_path = myf['casa']['helpers'][
'viewer'] #### set in casapy.py
args = [viewer_path]
if type(infile) == str:
if type(displaytype) == str:
args += [infile, displaytype]
else:
args += [infile]
if (os.uname()[0] == 'Darwin'):
vwrpid = os.spawnvp(os.P_NOWAIT, viewer_path, args)
elif (os.uname()[0] == 'Linux'):
vwrpid = os.spawnlp(os.P_NOWAIT, viewer_path, *args)
else:
print 'Unrecognized OS: No msview available'
return None
except Exception, instance:
if hasattr(myclog, "post"):
myclog.post('*** Error "%s" updating HISTORY of %s' % (instance, vis), "SEVERE")
retval = False
finally:
if isopen:
myms.close()
return retval
###done with common tools
# setup viewer tool
# jagonzal (CAS-4322): Don't load viewer at the engine level
if not os.environ.has_key("CASA_ENGINE"):
try:
ving = viewertool.viewertool(False)
if casa["flags"].has_key("--nogui"):
vi = ving
else:
vi = viewertool.viewertool(True)
except:
print "Unable to start viewer, maybe no dbus available?"
defaultsdir = {}
defaultsdir["alma"] = casa["dirs"]["xml"] + "/almadefaults.xml"
defaultsdir["evla"] = casa["dirs"]["xml"] + "/evladefaults.xml"
def selectfield(vis, minstring):
"""Derive the fieldid from minimum matched string(s): """
tb.open(vis + "/FIELD")
def __call__( self, raster=None, contour=None, zoom=None, axes=None, out=None ):
""" Old parameters:
infile=None,displaytype=None,channel=None,zoom=None,outfile=None,
outscale=None,outdpi=None,outformat=None,outlandscape=None,gui=None
The imview task will display images in raster, contour, vector or
marker form. Images can be blinked, and movies are available
for spectral-line image cubes. For measurement sets, many
display and editing options are available.
examples of usage:
imview
imview "myimage.im"
imview "myrestorefile.rstr"
imview "myimage.im", "contour"
imview "'myimage1.im' - 2 * 'myimage2.im'", "lel"
Executing imview( ) will bring up a display panel
window, which can be resized. If no data file was specified,
a Load Data window will also appear. Click on the desired data
file and choose the display type; the rendered data should appear
on the display panel.
A Data Display Options window will also appear. It has drop-down
subsections for related options, most of which are self-explanatory.
The state of the imview task -- loaded data and related display
options -- can be saved in a 'restore' file for later use.
You can provide the restore filename on the command line or
select it from the Load Data window.
See the cookbook for more details on using the imview task.
Keyword arguments:
infile -- Name of file to visualize
default: ''
example: infile='ngc5921.image'
If no infile is specified the Load Data window
will appear for selecting data.
displaytype -- (optional): method of rendering data
visually (raster, contour, vector or marker).
You can also set this parameter to 'lel' and
provide an lel expression for infile (advanced).
default: 'raster'
example: displaytype='contour'
Note: the filetype parameter is optional; typing of
data files is now inferred.
example: imview infile='my.im'
implies: imview infile='my.im', filetype='raster'
the filetype is still used to load contours, etc.
"""
a=inspect.stack()
stacklevel=0
for k in range(len(a)):
if a[k][1] == "<string>" or (string.find(a[k][1], 'ipython console') > 0 or string.find(a[k][1],"casapy.py") > 0):
stacklevel=k
myf=sys._getframe(stacklevel).f_globals
casalog.origin('imview')
if (type(out) == str and len(out) != 0) or \
(type(out) == dict and len(out) != 0) :
gui = False
(out_file, out_format, out_scale, out_dpi, out_orientation) = self.__extract_outputinfo( out )
else:
gui = True
if gui and self.local_vi is None or \
not gui and self.local_ving is None:
try:
## vi/ving might not be defined in taskinit if
## loading directly from python via casa.py...
vwr = vi if gui else ving
if type(vwr) == type(None) or type(vwr.cwd( )) != str:
vwr = viewertool.viewertool( gui, True, (type(myf) == dict and myf.has_key('casa') and type(myf['casa']) == type(os)) )
except:
vwr = None
if gui:
self.local_vi = vwr
else:
self.local_ving = vwr
else:
vwr = self.local_vi if gui else self.local_ving
if type(vwr) == type(None):
casalog.post( "failed to find a viewertool...", 'SEVERE')
raise Exception, "failed to find a viewertool..."
self.__pushd( vwr, os.path.abspath(os.curdir) )
if (raster is None or len(raster) == 0) and \
(contour is None or len(contour) == 0) :
panel = self.__panel(vwr)
else:
panel = self.__load_files( "raster", vwr, None, raster )
panel = self.__load_files( "contour", vwr, panel, contour )
self.__set_axes( vwr, panel, axes )
self.__zoom( vwr, panel, zoom )
self.__process_colorwedges( vwr, panel )
#vwr.unfreeze( panel )
if not gui:
vwr.output(out,scale=out_scale,dpi=out_dpi,format=out_format,orientation=out_orientation,panel=panel)
vwr.close(panel)
self.__popd( vwr )
return None
'SEVERE')
retval = False
finally:
if isopen:
myms.close()
return retval
###done with common tools
# setup viewer tool
# jagonzal (CAS-4322): Don't load viewer at the engine level
if not os.environ.has_key('CASA_ENGINE'):
try:
if casa.has_key('state') and casa['state'].has_key('startup'):
ving = viewertool.viewertool(False,
pre_launch=casa['state']['startup'])
if casa['flags'].has_key('--nogui'):
vi = ving
else:
vi = viewertool.viewertool(True,
pre_launch=casa['state']['startup'])
except:
print "Unable to start viewer, maybe no dbus available?"
defaultsdir = {}
defaultsdir['alma'] = 'file:///' + os.environ.get('CASAPATH').split(
)[0] + '/' + os.environ.get('CASAPATH').split()[1] + '/xml/almadefaults.xml'
defaultsdir['evla'] = 'file:///' + os.environ.get('CASAPATH').split(
)[0] + '/' + os.environ.get('CASAPATH').split()[1] + '/xml/evladefaults.xml'
def __call__(self, infile=None,displaytype=None,channel=None,zoom=None,outfile=None,outscale=None,outdpi=None,outformat=None,outlandscape=None,gui=None):
""" The viewer will display images in raster, contour, vector or
marker form. Images can be blinked, and movies are available
for spectral-line image cubes. For measurement sets, many
display and editing options are available.
examples of usage:
viewer
viewer "myimage.im"
viewer "mymeasurementset.ms"
viewer "myrestorefile.rstr"
viewer "myimage.im", "contour"
viewer "'myimage1.im' - 2 * 'myimage2.im'", "lel"
The viewer can be run outside of casapy by typing <casaviewer>.
Executing viewer <viewer> will bring up a display panel
window, which can be resized. If no data file was specified,
a Load Data window will also appear. Click on the desired data
file and choose the display type; the rendered data should appear
on the display panel.
A Data Display Options window will also appear. It has drop-down
subsections for related options, most of which are self-explanatory.
The state of the viewer -- loaded data and related display
options -- can be saved in a 'restore' file for later use.
You can provide the restore filename on the command line or
select it from the Load Data window.
See the cookbook for more details on using the viewer.
Keyword arguments:
infile -- Name of file to visualize
default: ''
example: infile='ngc5921.image'
If no infile is specified the Load Data window
will appear for selecting data.
displaytype -- (optional): method of rendering data
visually (raster, contour, vector or marker).
You can also set this parameter to 'lel' and
provide an lel expression for infile (advanced).
default: 'raster'
example: displaytype='contour'
Note: there is no longer a filetype parameter; typing of
data files is now done automatically.
example: viewer infile='my.ms'
obsolete: viewer infile='my.ms', filetype='ms'
"""
a=inspect.stack()
stacklevel=0
for k in range(len(a)):
if a[k][1] == "<string>" or (string.find(a[k][1], 'ipython console') > 0 or string.find(a[k][1],"casapy.py") > 0):
stacklevel=k
myf=sys._getframe(stacklevel).f_globals
#Python script
try:
## vi might not be defined in taskinit if loading
## directly from python via casa.py...
vwr = vi
if type(gui) == bool and gui == False:
vwr = ving
if type(vwr.cwd( )) != str:
vwr = None
except:
vwr = None
if type(vwr) == type(None):
need_gui = True
if type(gui) == bool and gui == False:
need_gui = False
if need_gui :
if self.local_vi is not None:
vwr = self.local_vi
else:
vwr = viewertool.viewertool( True, True, (type(myf) == dict and myf.has_key('casa') and type(myf['casa']) == type(os)) )
self.local_vi = vwr
else:
if self.local_ving is not None:
vwr = self.local_ving
else:
vwr = viewertool.viewertool( False, True, (type(myf) == dict and myf.has_key('casa') and type(myf['casa']) == type(os)) )
self.local_ving = vwr
if type(vwr) != type(None) :
##
## (1) save current *viewer*server* path
## (2) have viewer() task follow casapy/python's cwd
try:
old_path = vwr.cwd( )
except:
raise Exception, "viewer() failed to get the current working directory [" + str(sys.exc_info()[0]) + ": " + str(sys.exc_info()[1]) + "]"
try:
vwr.cwd(os.path.abspath(os.curdir))
except:
raise Exception, "viewer() failed to change to the new working directory (" + os.path.abspath(os.curdir) + ") [" + str(sys.exc_info()[0]) + ": " + str(sys.exc_info()[1]) + "]"
panel = vwr.panel("viewer")
data = None
if type(infile) == str and len(infile) > 0 :
if type(displaytype) == str:
data = vwr.load( infile, displaytype, panel=panel )
else:
data = vwr.load( infile, panel=panel )
if type(channel) == int and channel > 0 :
vwr.channel(channel,panel=panel)
if type(zoom) == int and zoom != 1 :
vwr.zoom(zoom,panel=panel)
if type(outfile) == str and len(outfile) > 0 :
scale=1.0
if type(outscale) == float :
scale=outscale
dpi=300
if type(outdpi) == int :
dpi=outdpi
format="jpg"
if type(outformat) == str :
format=outformat
orientation="portrait"
if type(outlandscape) == bool and outlandscape :
orientation="landscape"
vwr.output(outfile,scale=scale,dpi=dpi,format=format,orientation=orientation,panel=panel)
else:
vwr.popup( 'open', panel=panel )
# it makes no sense to leave a panel open with no way of interacting with it
if type(gui) == bool and not gui:
vwr.close(panel)
## (3) restore original path
try:
vwr.cwd(old_path)
except:
raise Exception, "viewer() failed to restore the old working directory (" + old_path + ") [" + str(sys.exc_info()[0]) + ": " + str(sys.exc_info()[1]) + "]"
else:
viewer_path = myf['casa']['helpers']['viewer'] #### set in casapy.py
args = [ viewer_path ]
if type(infile) == str:
if type(displaytype) == str:
args += [ infile, displaytype ]
else:
args += [ infile ]
if (os.uname()[0]=='Darwin'):
vwrpid=os.spawnvp( os.P_NOWAIT, viewer_path, args )
elif (os.uname()[0]=='Linux'):
vwrpid=os.spawnlp( os.P_NOWAIT, viewer_path, *args )
else:
print 'Unrecognized OS: No viewer available'
return None
def __call__( self, raster=None, contour=None, zoom=None, axes=None, out=None ):
""" Old parameters:
infile=None,displaytype=None,channel=None,zoom=None,outfile=None,
outscale=None,outdpi=None,outformat=None,outlandscape=None,gui=None
The imview task will display images in raster, contour, vector or
marker form. Images can be blinked, and movies are available
for spectral-line image cubes. For measurement sets, many
display and editing options are available.
examples of usage:
imview
imview "myimage.im"
imview "myrestorefile.rstr"
imview "myimage.im", "contour"
imview "'myimage1.im' - 2 * 'myimage2.im'", "lel"
Executing imview( ) will bring up a display panel
window, which can be resized. If no data file was specified,
a Load Data window will also appear. Click on the desired data
file and choose the display type; the rendered data should appear
on the display panel.
A Data Display Options window will also appear. It has drop-down
subsections for related options, most of which are self-explanatory.
The state of the imview task -- loaded data and related display
options -- can be saved in a 'restore' file for later use.
You can provide the restore filename on the command line or
select it from the Load Data window.
See the cookbook for more details on using the imview task.
Keyword arguments:
infile -- Name of file to visualize
default: ''
example: infile='ngc5921.image'
If no infile is specified the Load Data window
will appear for selecting data.
displaytype -- (optional): method of rendering data
visually (raster, contour, vector or marker).
You can also set this parameter to 'lel' and
provide an lel expression for infile (advanced).
default: 'raster'
example: displaytype='contour'
Note: the filetype parameter is optional; typing of
data files is now inferred.
example: imview infile='my.im'
implies: imview infile='my.im', filetype='raster'
the filetype is still used to load contours, etc.
"""
myf=stack_frame_find( )
vi = myf['vi'] if myf.has_key('vi') else None
ving = myf['ving'] if myf.has_key('ving') else None
casalog.origin('imview')
if (type(out) == str and len(out) != 0) or \
(type(out) == dict and len(out) != 0) :
gui = False
(out_file, out_format, out_scale, out_dpi, out_orientation) = self.__extract_outputinfo( out )
else:
gui = True
if gui and self.local_vi is None or \
not gui and self.local_ving is None:
try:
## vi/ving might not be defined in taskinit if
## loading directly from python via casa.py...
vwr = vi if gui else ving
if type(vwr) == type(None) or type(vwr.cwd( )) != str:
vwr = viewertool.viewertool( gui, True, (type(myf) == dict and myf.has_key('casa') and type(myf['casa']) == type(os)) )
except:
vwr = None
if gui:
self.local_vi = vwr
else:
self.local_ving = vwr
else:
vwr = self.local_vi if gui else self.local_ving
if type(vwr) == type(None):
casalog.post( "failed to find a viewertool...", 'SEVERE')
raise Exception, "failed to find a viewertool..."
self.__pushd( vwr, os.path.abspath(os.curdir) )
if (raster is None or len(raster) == 0) and \
(contour is None or len(contour) == 0) :
panel = self.__panel(vwr)
else:
panel = self.__load_files( "raster", vwr, None, raster )
panel = self.__load_files( "contour", vwr, panel, contour )
self.__set_axes( vwr, panel, axes )
self.__zoom( vwr, panel, zoom )
self.__process_colorwedges( vwr, panel )
#vwr.unfreeze( panel )
if not gui:
vwr.output(out,scale=out_scale,dpi=out_dpi,format=out_format,orientation=out_orientation,panel=panel)
vwr.close(panel)
self.__popd( vwr )
return None
if hasattr(myclog, 'post'):
myclog.post("*** Error \"%s\" updating HISTORY of %s" % (instance, vis),
'SEVERE')
retval = False
finally:
if isopen:
myms.close()
return retval
###done with common tools
# setup viewer tool
# jagonzal (CAS-4322): Don't load viewer at the engine level
if not os.environ.has_key('CASA_ENGINE'):
try:
ving = viewertool.viewertool( False )
if casa['flags'].has_key('--nogui') :
vi = ving
else:
vi = viewertool.viewertool( True )
except :
print "Unable to start viewer, maybe no dbus available?"
defaultsdir = {}
defaultsdir['alma'] = casa['dirs']['xml'] + '/almadefaults.xml'
defaultsdir['evla'] = casa['dirs']['xml'] + '/evladefaults.xml'
def selectfield(vis,minstring):
"""Derive the fieldid from minimum matched string(s): """
myclog.post("*** Error \"%s\" updating HISTORY of %s" % (instance, vis),
'SEVERE')
retval = False
finally:
if isopen:
myms.close()
return retval
###done with common tools
# setup viewer tool
# jagonzal (CAS-4322): Don't load viewer at the engine level
if not os.environ.has_key('CASA_ENGINE'):
try :
if casa.has_key('state') and casa['state'].has_key('startup') :
ving = viewertool.viewertool( False, pre_launch=casa['state']['startup'] )
if casa['flags'].has_key('--nogui') :
vi = ving
else:
vi = viewertool.viewertool( True, pre_launch=casa['state']['startup'] )
except :
print "Unable to start viewer, maybe no dbus available?"
defaultsdir = {}
defaultsdir['alma'] = 'file:///'+os.environ.get('CASAPATH').split()[0]+'/'+os.environ.get('CASAPATH').split()[1]+'/xml/almadefaults.xml'
defaultsdir['evla'] = 'file:///'+os.environ.get('CASAPATH').split()[0]+'/'+os.environ.get('CASAPATH').split()[1]+'/xml/evladefaults.xml'
def selectfield(vis,minstring):
"""Derive the fieldid from minimum matched string(s): """
def __call__(self, infile=None,displaytype=None,channel=None,zoom=None,outfile=None,outscale=None,outdpi=None,outformat=None,outlandscape=None,gui=None):
""" The msview will display measurement sets in raster form
Many display and editing options are available.
examples of usage:
msview
msview "mymeasurementset.ms"
msview "myrestorefile.rstr"
Executing the msview task will bring up a display panel
window, which can be resized. If no data file was specified,
a Load Data window will also appear. Click on the desired data
file and choose the display type; the rendered data should appear
on the display panel.
A Data Display Options window will also appear. It has drop-down
subsections for related options, most of which are self-explanatory.
The state of the msview task -- loaded data and related display
options -- can be saved in a 'restore' file for later use.
You can provide the restore filename on the command line or
select it from the Load Data window.
See the cookbook for more details on using the msview task.
Keyword arguments:
infile -- Name of file to visualize
default: ''
example: infile='my.ms'
If no infile is specified the Load Data window
will appear for selecting data.
displaytype -- (optional): method of rendering data
visually (raster, contour, vector or marker).
You can also set this parameter to 'lel' and
provide an lel expression for infile (advanced).
default: 'raster'
Note: there is no longer a filetype parameter; typing of
data files is now done automatically.
example: msview infile='my.ms'
obsolete: msview infile='my.ms', filetype='ms'
"""
myf=stack_frame_find( )
vi = myf['vi'] if myf.has_key('vi') else None
ving = myf['ving'] if myf.has_key('ving') else None
#Python script
try:
## vi might not be defined in taskinit if loading
## directly from python via casa.py...
vwr = vi
if type(gui) == bool and gui == False:
vwr = ving
if type(vwr.cwd( )) != str:
vwr = None
except:
vwr = None
if type(vwr) == type(None):
need_gui = True
if type(gui) == bool and gui == False:
need_gui = False
if need_gui :
if self.local_vi is not None:
vwr = self.local_vi
else:
vwr = viewertool.viewertool( True, True, (type(myf) == dict and myf.has_key('casa') and type(myf['casa']) == type(os)) )
self.local_vi = vwr
else:
if self.local_ving is not None:
vwr = self.local_ving
else:
vwr = viewertool.viewertool( False, True, (type(myf) == dict and myf.has_key('casa') and type(myf['casa']) == type(os)) )
self.local_ving = vwr
if type(vwr) != type(None) :
##
## (1) save current *viewer*server* path
## (2) have viewer() task follow casapy/python's cwd
try:
old_path = vwr.cwd( )
except:
raise Exception, "msview() failed to get the current working directory"
try:
vwr.cwd(os.path.abspath(os.curdir))
except:
raise Exception, "msview() failed to change to the new working directory"
data = None
if type(infile) == str and len(infile) > 0 :
info = vwr.fileinfo(infile);
if info['type'] != 'ms' :
if info['type'] == 'image' :
raise Exception, "msview() only displays images, try 'imview()'..."
elif info['type'] == 'nonexistent' :
raise Exception, "ms (" + infile + ") could not be found..."
else :
raise Exception, "unknow error..."
panel = vwr.panel("viewer")
if type(displaytype) == str:
data = vwr.load( infile, displaytype, panel=panel )
else:
data = vwr.load( infile, panel=panel )
if type(channel) == int and channel > 0 :
vwr.channel(channel,panel=panel)
if type(zoom) == int and zoom != 1 :
vwr.zoom(zoom,panel=panel)
if type(outfile) == str and len(outfile) > 0 :
scale=1.0
if type(outscale) == float :
scale=outscale
dpi=300
if type(outdpi) == int :
dpi=outdpi
format="jpg"
if type(outformat) == str :
format=outformat
orientation="portrait"
if type(outlandscape) == bool and outlandscape :
orientation="landscape"
vwr.output(outfile,scale=scale,dpi=dpi,format=format,orientation=orientation,panel=panel)
else:
panel = vwr.panel("viewer")
vwr.popup( 'open', panel=panel )
# it makes no sense to leave a panel open with no way of interacting with it
if type(gui) == bool and not gui:
vwr.close(panel)
## (3) restore original path
try:
vwr.cwd(old_path)
except:
raise Exception, "msview() failed to restore the old working directory"
else:
viewer_path = myf['casa']['helpers']['viewer'] #### set in casapy.py
args = [ viewer_path ]
if type(infile) == str:
if type(displaytype) == str:
args += [ infile, displaytype ]
else:
args += [ infile ]
if (os.uname()[0]=='Darwin'):
vwrpid=os.spawnvp( os.P_NOWAIT, viewer_path, args )
elif (os.uname()[0]=='Linux'):
vwrpid=os.spawnlp( os.P_NOWAIT, viewer_path, *args )
else:
print 'Unrecognized OS: No msview available'
return None
def __call__(self,
infile=None,
displaytype=None,
channel=None,
zoom=None,
outfile=None,
outscale=None,
outdpi=None,
outformat=None,
outlandscape=None,
gui=None):
""" The viewer will display images in raster, contour, vector or
marker form. Images can be blinked, and movies are available
for spectral-line image cubes. For measurement sets, many
display and editing options are available.
examples of usage:
viewer
viewer "myimage.im"
viewer "mymeasurementset.ms"
viewer "myrestorefile.rstr"
viewer "myimage.im", "contour"
viewer "'myimage1.im' - 2 * 'myimage2.im'", "lel"
The viewer can be run outside of casapy by typing <casaviewer>.
Executing viewer <viewer> will bring up a display panel
window, which can be resized. If no data file was specified,
a Load Data window will also appear. Click on the desired data
file and choose the display type; the rendered data should appear
on the display panel.
A Data Display Options window will also appear. It has drop-down
subsections for related options, most of which are self-explanatory.
The state of the viewer -- loaded data and related display
options -- can be saved in a 'restore' file for later use.
You can provide the restore filename on the command line or
select it from the Load Data window.
See the cookbook for more details on using the viewer.
Keyword arguments:
infile -- Name of file to visualize
default: ''
example: infile='ngc5921.image'
If no infile is specified the Load Data window
will appear for selecting data.
displaytype -- (optional): method of rendering data
visually (raster, contour, vector or marker).
You can also set this parameter to 'lel' and
provide an lel expression for infile (advanced).
default: 'raster'
example: displaytype='contour'
Note: there is no longer a filetype parameter; typing of
data files is now done automatically.
example: viewer infile='my.ms'
obsolete: viewer infile='my.ms', filetype='ms'
"""
myf = stack_frame_find()
vi = myf['vi'] if myf.has_key('vi') else None
ving = myf['ving'] if myf.has_key('ving') else None
#Python script
try:
vwr = vi
if type(gui) == bool and gui == False:
vwr = ving
if type(vwr.cwd()) != str:
vwr = None
except:
vwr = None
if type(vwr) == type(None):
need_gui = True
if type(gui) == bool and gui == False:
need_gui = False
if need_gui:
if self.local_vi is not None:
vwr = self.local_vi
else:
vwr = viewertool.viewertool(
True, True, (type(myf) == dict and myf.has_key('casa')
and type(myf['casa']) == type(os)))
self.local_vi = vwr
else:
if self.local_ving is not None:
vwr = self.local_ving
else:
vwr = viewertool.viewertool(
False, True, (type(myf) == dict and myf.has_key('casa')
and type(myf['casa']) == type(os)))
self.local_ving = vwr
if type(vwr) != type(None):
##
## (1) save current *viewer*server* path
## (2) have viewer() task follow casapy/python's cwd
try:
old_path = vwr.cwd()
except:
raise Exception, "viewer() failed to get the current working directory [" + str(
sys.exc_info()[0]) + ": " + str(sys.exc_info()[1]) + "]"
try:
vwr.cwd(os.path.abspath(os.curdir))
except:
raise Exception, "viewer() failed to change to the new working directory (" + os.path.abspath(
os.curdir) + ") [" + str(sys.exc_info()[0]) + ": " + str(
sys.exc_info()[1]) + "]"
panel = vwr.panel("viewer")
data = None
if type(infile) == str and len(infile) > 0:
if type(displaytype) == str:
data = vwr.load(infile, displaytype, panel=panel)
else:
data = vwr.load(infile, panel=panel)
if type(channel) == int and channel > 0:
vwr.channel(channel, panel=panel)
if type(zoom) == int and zoom != 1:
vwr.zoom(zoom, panel=panel)
if type(outfile) == str and len(outfile) > 0:
scale = 1.0
if type(outscale) == float:
scale = outscale
dpi = 300
if type(outdpi) == int:
dpi = outdpi
format = "jpg"
if type(outformat) == str:
format = outformat
orientation = "portrait"
if type(outlandscape) == bool and outlandscape:
orientation = "landscape"
vwr.output(outfile,
scale=scale,
dpi=dpi,
format=format,
orientation=orientation,
panel=panel)
else:
vwr.popup('open', panel=panel)
# it makes no sense to leave a panel open with no way of interacting with it
if type(gui) == bool and not gui:
vwr.close(panel)
## (3) restore original path
try:
vwr.cwd(old_path)
except:
raise Exception, "viewer() failed to restore the old working directory (" + old_path + ") [" + str(
sys.exc_info()[0]) + ": " + str(sys.exc_info()[1]) + "]"
else:
viewer_path = myf['casa']['helpers'][
'viewer'] #### set in casapy.py
args = [viewer_path]
if type(infile) == str:
if type(displaytype) == str:
args += [infile, displaytype]
else:
args += [infile]
if (os.uname()[0] == 'Darwin'):
vwrpid = os.spawnvp(os.P_NOWAIT, viewer_path, args)
elif (os.uname()[0] == 'Linux'):
vwrpid = os.spawnlp(os.P_NOWAIT, viewer_path, *args)
else:
print 'Unrecognized OS: No viewer available'
return None
