def __init__(self,
left_plotlist,
right_plotlist=None,
left_log=False,
right_log=False,
auto_update=True,
backend='qwt',
parent=None,
**kwargs):
"""Initialize the plotting backend, data and local setting
:param left_plotlist: Codenames for the plots that should go on the
left y-axis
:type left_plotlist: iterable with strs
:param right_plotlist: Codenames for the plots that should go in the
right y-axis
:type left_plotlist: iterable with strs
:param left_log: Left y-axis should be log
:type left_log: bool
:param right_log: Right y-axis should be log
:type right_log: bool
:param auto_update: Whether all data actions should trigger an update
:type auto_update: bool
:param backend: The plotting backend to use. Current only option is
'qwt'
:type backend: str
:param parent: If a GUI backend is used that needs to know the parent
GUI object, then that should be supplied here
:type parent: GUI object
Kwargs:
:param title: The title of the plot
:type title: str
:param xaxis_label: Label for the x axis
:type xaxis_label: str
:param yaxis_left_label: Label for the left y axis
:type yaxis_left_label: str
:param yaxis_right_label: Label for the right y axis
:type yaxis_right_label: str
:param left_labels: Labels for the plots on the left y-axis. If none
are given the codenames will be used.
:type left_labels: iterable with strs
:param right_labels: Labels for the plots on the right y-axis. If none
are given the codenames will be used.
:type right_labels: iterable with strs
:param legend: Position of the legend. Possible values are:
'left', 'right', 'bottom', 'top'. If no argument is given, the
legend will not be shown.
:type legend: str
:param left_colors: Colors for the left curves (see background_color
for details)
:type left_colors: iterable of strs
:param right_colors: Colors for the right curves (see background_color
for details)
:type right_colors: iterable of strs
:param left_thickness: Line thickness. Either an integer to apply for
all left lines or a iterable of integers, one for each line.
:type left_thickness: int or iterable of ints
:param right_thickness: Line thickness. Either an integer to apply for
all right lines or a iterable of integers, one for each line.
:type right_thickness: int or iterable of ints
:param background_color: The name in a str (as understood by
QtGui.QColor(), see :ref:`colors-section` section for possible
values) or a string with a hex value e.g. '#101010' that should
be used as the background color.
:type background_color: str
"""
# Gather all plots
all_plots = list(left_plotlist)
if right_plotlist is not None:
all_plots += list(right_plotlist)
# Input checks
message = self._init_check_left(left_plotlist, kwargs)
# Check number of right labels, colors and thickness
message = message or self._init_check_right(right_plotlist, kwargs)
# Check legend
message = message or self._init_check_legends_plots(all_plots, kwargs)
# Backend
if backend not in ['qwt']:
message = 'Backend must be \'qwt\''
if message is not None:
raise ValueError(message)
# Initiate the backend
if backend == 'qwt':
from PyExpLabSys.common.plotters_backend_qwt import QwtPlot
self._plot = QwtPlot(parent, left_plotlist, right_plotlist,
left_log, right_log, **kwargs)
# Initiate the data
self._data = {}
for plot in all_plots:
self._data[plot] = []
self.auto_update = auto_update
