def __init__(self, parent=None):
super().__init__(parent)
self.corpus = None
# -- INFO --
info_box = gui.widgetBox(self.controlArea, 'Info')
self.controlArea.layout().addStretch()
self.info_label = gui.label(info_box, self,
'No input corpus detected.')
# Commit checkbox and commit button.
output_box = gui.widgetBox(self.controlArea, 'Output')
auto_commit_box = gui.auto_commit(output_box,
self,
'autocommit',
'Commit',
box=False)
auto_commit_box.setMinimumWidth(170)
# -- PIPELINE --
frame = QFrame()
frame.setContentsMargins(0, 0, 0, 0)
frame.setFrameStyle(QFrame.Box)
frame.setStyleSheet('.QFrame { border: 1px solid #B3B3B3; }')
frame_layout = QVBoxLayout()
frame_layout.setContentsMargins(0, 0, 0, 0)
frame_layout.setSpacing(0)
frame.setLayout(frame_layout)
# Load the previous states.
persistent_data = [
self.persistent_data_tokenizer,
self.persistent_data_stemmer,
self.persistent_data_casing,
self.persistent_data_filter,
]
for ModuleClass, ModuleData in zip(PREPROCESSOR_MODULES,
persistent_data):
pp_module_widget = ModuleClass(ModuleData) # Create pp instance.
self.preprocessors.append(pp_module_widget)
pp_module_widget.change_signal.connect(self.settings_invalidated)
pp_module_widget.error_signal.connect(self.display_message)
frame_layout.addWidget(pp_module_widget)
self.store_pipeline() # Store the pipeline after loading it.
frame_layout.addStretch()
self.mainArea.layout().addWidget(frame)
self.progress_bar = None # Progress bar initialization.
def __init__(self, parent=None):
super().__init__(parent)
self.corpus = None
self.initial_ngram_range = None # initial range of input corpus — used for inplace
self.preprocessor = preprocess.Preprocessor()
# -- INFO --
info_box = gui.widgetBox(self.controlArea, "Info")
info_box.setFixedWidth(self.control_area_width)
self.controlArea.layout().addStretch()
self.info_label = gui.label(info_box, self, "")
self.update_info()
# -- PIPELINE --
frame = QFrame()
frame.setContentsMargins(0, 0, 0, 0)
frame.setFrameStyle(QFrame.Box)
frame.setStyleSheet(".QFrame { border: 1px solid #B3B3B3; }")
frame_layout = QVBoxLayout()
frame_layout.setContentsMargins(0, 0, 0, 0)
frame_layout.setSpacing(0)
frame.setLayout(frame_layout)
for stage in self.preprocessors:
widget = stage(self)
setattr(self, stage.attribute, widget)
frame_layout.addWidget(widget)
widget.change_signal.connect(self.settings_invalidated)
frame_layout.addStretch()
self.scroll = QtGui.QScrollArea()
self.scroll.setWidget(frame)
self.scroll.setWidgetResizable(True)
self.scroll.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.scroll.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
self.scroll.resize(frame_layout.sizeHint())
self.scroll.setMinimumWidth(frame_layout.sizeHint().width() + 20) # + scroll bar
self.scroll.setMinimumHeight(500)
self.mainArea.layout().addWidget(self.scroll)
# Buttons area
self.report_button.setFixedWidth(self.control_area_width)
commit_button = gui.auto_commit(self.buttonsArea, self, "autocommit", "Commit", box=False)
commit_button.setFixedWidth(self.control_area_width - 5)
self.buttonsArea.layout().addWidget(commit_button)
def __init__(self, parent=None):
super().__init__(parent)
self.corpus = None
# -- INFO --
info_box = gui.widgetBox(self.controlArea, 'Info')
self.controlArea.layout().addStretch()
self.info_label = gui.label(info_box, self,
'No input corpus detected.')
# Commit checkbox and commit button.
output_box = gui.widgetBox(self.controlArea, 'Output')
auto_commit_box = gui.auto_commit(output_box, self, 'autocommit',
'Commit', box=False)
auto_commit_box.setMinimumWidth(170)
# -- PIPELINE --
frame = QFrame()
frame.setContentsMargins(0, 0, 0, 0)
frame.setFrameStyle(QFrame.Box)
frame.setStyleSheet('.QFrame { border: 1px solid #B3B3B3; }')
frame_layout = QVBoxLayout()
frame_layout.setContentsMargins(0, 0, 0, 0)
frame_layout.setSpacing(0)
frame.setLayout(frame_layout)
# Load the previous states.
persistent_data = [
self.persistent_data_tokenizer,
self.persistent_data_stemmer,
self.persistent_data_casing,
self.persistent_data_filter,
]
for ModuleClass, ModuleData in zip(PREPROCESSOR_MODULES,
persistent_data):
pp_module_widget = ModuleClass(ModuleData) # Create pp instance.
self.preprocessors.append(pp_module_widget)
pp_module_widget.change_signal.connect(self.settings_invalidated)
pp_module_widget.error_signal.connect(self.display_message)
frame_layout.addWidget(pp_module_widget)
self.store_pipeline() # Store the pipeline after loading it.
frame_layout.addStretch()
self.mainArea.layout().addWidget(frame)
self.progress_bar = None # Progress bar initialization.
def setupUi(self):
self.setWindowTitle('SR785 Front Panel Emulation')
frame = QFrame()
frame.setObjectName('CRT')
frame.setStyleSheet(
'QFrame#CRT {border: 2px solid red; border-radius: 30px; background-color: black;}'
)
frame.setFixedSize(830, 630)
frame.setContentsMargins(10, 10, 10, 10)
self.screen = SR785_Screen(parent=self)
l1 = QHBoxLayout()
l1.addWidget(self.screen)
frame.setLayout(l1)
self.keyboard = SR785_Keyboard(parent=self)
self.screen.softKeyClicked.connect(self.handleSoftKey)
layout = QHBoxLayout(self)
layout.addWidget(frame)
layout.addWidget(self.keyboard)
class GraphDialog(QDialog):
edit_patterns = 0
edit_curves = 1
titles = {edit_patterns: 'Pattern editor', edit_curves: 'Curve editor'}
labels = {edit_patterns: 'Patterns', edit_curves: 'Curves'}
def __init__(self, dockwidget, parent, params, edit_type):
QDialog.__init__(self, parent)
main_lay = QVBoxLayout(self)
self.dockwidget = dockwidget
self.params = params
self.edit_type = edit_type
self.x_label = ''
self.y_label = ''
self.setMinimumWidth(600)
self.setMinimumHeight(400)
self.setWindowTitle(self.titles[edit_type]) # TODO: softcode
self.setWindowModality(QtCore.Qt.ApplicationModal)
self.current = None
self.current_saved = False
# File
self.lbl_file = QLabel('File:')
self.fra_file = QFrame()
self.fra_file.setContentsMargins(0, 0, 0, 0)
fra_file_lay = QHBoxLayout(self.fra_file)
if edit_type == self.edit_patterns:
self.txt_file = QLineEdit(self.params.patterns_file)
elif edit_type == self.edit_curves:
self.txt_file = QLineEdit(self.params.curves_file)
self.txt_file.setReadOnly(True)
self.txt_file.setAlignment(QtCore.Qt.AlignLeft
| QtCore.Qt.AlignVCenter)
self.txt_file.setSizePolicy(QSizePolicy.MinimumExpanding,
QSizePolicy.Minimum)
fra_file_lay.addWidget(self.txt_file)
self.btn_file = QPushButton('Change') # TODO: softcode
self.btn_file.clicked.connect(self.import_file)
fra_file_lay.addWidget(self.btn_file)
fra_file_lay.setContentsMargins(0, 0, 0, 0)
self.lbl_list = QLabel(self.labels[edit_type])
self.lst_list = QListWidget()
self.lst_list.currentItemChanged.connect(self.list_item_changed)
# Form
self.fra_form = QFrame()
fra_form1_lay = QFormLayout(self.fra_form)
fra_form1_lay.setContentsMargins(0, 0, 0, 0)
fra_form1_lay.addRow(self.lbl_list, self.lst_list)
# Buttons
self.fra_buttons = QFrame()
fra_buttons_lay = QHBoxLayout(self.fra_buttons)
fra_buttons_lay.setContentsMargins(0, 0, 0, 0)
if self.edit_type == self.edit_patterns:
ele_name = 'pattern'
elif self.edit_type == self.edit_curves:
ele_name = 'curve'
self.btn_new = QPushButton('New ' + ele_name) # TODO: softcode
self.btn_new.clicked.connect(self.new_element)
fra_buttons_lay.addWidget(self.btn_new)
self.btn_import = QPushButton('Import ' + ele_name +
's') # TODO: softcode
self.btn_import.clicked.connect(self.import_file)
fra_buttons_lay.addWidget(self.btn_import)
self.btn_save = QPushButton('Save current ' +
ele_name) # TODO: softcode
self.btn_save.clicked.connect(self.save)
fra_buttons_lay.addWidget(self.btn_save)
self.btn_del = QPushButton('Delete current ' +
ele_name) # TODO: softcode
self.btn_del.clicked.connect(self.del_item)
fra_buttons_lay.addWidget(self.btn_del)
# ID
self.lbl_id = QLabel('ID:')
self.txt_id = QLineEdit()
self.txt_id.setSizePolicy(QSizePolicy.Maximum,
QSizePolicy.MinimumExpanding)
self.lbl_desc = QLabel('Desc.:')
self.txt_desc = QLineEdit()
self.fra_id = QFrame()
fra_id_lay = QHBoxLayout(self.fra_id)
fra_id_lay.addWidget(self.lbl_id)
fra_id_lay.addWidget(self.txt_id)
fra_id_lay.addWidget(self.lbl_desc)
fra_id_lay.addWidget(self.txt_desc)
# Table form
self.table = QTableWidget(self)
self.rows_nr = 24
self.cols_nr = 2
self.table.setRowCount(self.rows_nr)
self.table.setColumnCount(self.cols_nr)
self.table.verticalHeader().setVisible(False)
# Initialize empty table
self.clear_table()
self.table.itemChanged.connect(self.data_changed)
self.fra_table = QFrame()
fra_table_lay = QVBoxLayout(self.fra_table)
fra_table_lay.setContentsMargins(0, 0, 0, 0)
if edit_type == self.edit_curves:
self.fra_pump_type = QFrame()
fra_pump_type_lay = QFormLayout(self.fra_pump_type)
self.lbl_pump_type = QLabel('Curve type:') # TODO: softcode
self.cbo_pump_type = QComboBox()
for key, name in Curve.type_names.iteritems():
self.cbo_pump_type.addItem(name, key)
fra_pump_type_lay.addRow(self.lbl_pump_type, self.cbo_pump_type)
fra_table_lay.addWidget(self.fra_pump_type)
self.cbo_pump_type.activated.connect(self.cbo_pump_type_activated)
fra_table_lay.addWidget(self.table)
self.btn_add_row = QPushButton('Add row')
self.btn_add_row.clicked.connect(self.add_row)
fra_table_lay.addWidget(self.btn_add_row)
# Graph canvas
self.fra_graph = QFrame()
self.static_canvas = StaticMplCanvas(self.fra_graph,
width=5,
height=4,
dpi=100)
fra_graph_lay = QVBoxLayout(self.fra_graph)
fra_graph_lay.addWidget(self.static_canvas)
# Top frame
self.fra_top = QFrame()
fra_top_lay = QVBoxLayout(self.fra_top)
fra_top_lay.addWidget(self.fra_form)
fra_top_lay.addWidget(self.fra_id)
fra_top_lay.addWidget(self.fra_buttons)
# Bottom frame
self.fra_bottom = QFrame()
fra_bottom_lay = QHBoxLayout(self.fra_bottom)
fra_bottom_lay.addWidget(self.fra_table)
fra_bottom_lay.addWidget(self.fra_graph)
# Main
main_lay.addWidget(self.fra_top)
main_lay.addWidget(self.fra_bottom)
# Get existing patterns/curves
self.need_to_update_graph = False
if self.edit_type == self.edit_patterns:
for pattern_id, pattern in self.params.patterns.iteritems():
self.lst_list.addItem(pattern.id)
elif self.edit_type == self.edit_curves:
for curve_id, curve in self.params.curves.iteritems():
self.lst_list.addItem(curve.id)
if self.lst_list.count() > 0:
self.lst_list.setCurrentRow(0)
self.txt_id.setEnabled(True)
self.txt_desc.setEnabled(True)
self.btn_save.setEnabled(True)
self.btn_del.setEnabled(True)
self.table.setEnabled(True)
self.table.setEditTriggers(QAbstractItemView.AllEditTriggers)
else:
self.txt_id.setEnabled(False)
self.txt_desc.setEnabled(False)
self.btn_save.setEnabled(False)
self.btn_del.setEnabled(False)
self.table.setEnabled(False)
self.table.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.new_dialog = None
self.need_to_update_graph = True
def cbo_pump_type_activated(self):
self.update_table_headers()
self.update_graph()
def add_row(self):
row_pos = self.table.rowCount()
self.table.insertRow(row_pos)
col = 0
item = QTableWidgetItem(str(row_pos))
if self.edit_type == self.edit_patterns:
self.table.setItem(row_pos, col, item)
item.setFlags(QtCore.Qt.ItemIsSelectable)
def setVisible(self, bool):
QDialog.setVisible(self, bool)
self.update_table_headers()
self.update_graph()
def list_item_changed(self):
p_index = self.lst_list.currentRow()
flags = Qt.ItemFlags()
flags != Qt.ItemIsEnabled
# Clear table
self.clear_table()
self.need_to_update_graph = False
if p_index >= 0:
self.table.setRowCount(0)
if self.edit_type == self.edit_patterns:
self.current = self.params.patterns[
self.lst_list.currentItem().text()]
for v in range(len(self.current.values)):
row_pos = self.table.rowCount()
self.table.insertRow(row_pos)
item = QTableWidgetItem(str(v))
item.setFlags(flags)
self.table.setItem(v, 0, item)
self.table.setItem(
v, 1, QTableWidgetItem(str(self.current.values[v])))
elif self.edit_type == self.edit_curves:
self.current = self.params.curves[
self.lst_list.currentItem().text()]
for v in range(len(self.current.xs)):
row_pos = self.table.rowCount()
self.table.insertRow(row_pos)
self.table.setItem(
v, 0, QTableWidgetItem(str(self.current.xs[v])))
self.table.setItem(
v, 1, QTableWidgetItem(str(self.current.ys[v])))
curve_type = self.current.type
self.cbo_pump_type.setCurrentIndex(curve_type)
# Update GUI
self.txt_id.setText(self.current.id)
self.txt_desc.setText(self.current.desc)
self.update_table_headers()
# Update graph
self.need_to_update_graph = True
self.update_graph()
else:
# No curves
self.txt_id.setText('')
self.txt_desc.setText('')
# Update table and chart
self.need_to_update_graph = False
for v in range(self.table.columnCount()):
self.table.setItem(v, 1, QTableWidgetItem(''))
self.need_to_update_graph = True
self.update_graph()
def import_file(self):
config_file = ConfigFile(Parameters.config_file_path)
directory = None
if self.edit_type == GraphDialog.edit_curves:
directory = self.params.last_curves_dir
elif self.edit_type == GraphDialog.edit_patterns:
directory = self.params.last_patterns_dir
if directory is None:
directory = self.params.last_project_dir
file_path = QFileDialog.getOpenFileName(self, 'Select file', directory,
'Files (*.txt *.inp)')
if file_path is None or file_path == '':
return
else:
if self.edit_type == GraphDialog.edit_patterns:
# Save patterns file path in configuration file
config_file.set_patterns_file_path(file_path)
Parameters.patterns_file = file_path
elif self.edit_type == GraphDialog.edit_curves:
# Save curve file path in configuration file
config_file.set_curves_file_path(file_path)
Parameters.curves_file = file_path
self.read(file_path)
def read(self, file_path):
self.lst_list.clear()
if self.edit_type == self.edit_patterns:
InpFile.read_patterns(self.params, file_path)
for pattern_id, pattern in self.params.patterns.iteritems():
# desc = ' (' + pattern.desc + ')' if pattern.desc is not None else ''
self.lst_list.addItem(pattern.id)
self.params.patterns[pattern.id] = pattern
elif self.edit_type == self.edit_curves:
InpFile.read_curves(self.params, file_path)
for curve_id, curve in self.params.curves.iteritems():
# desc = ' (' + curve.desc + ')' if curve.desc is not None else ''
self.lst_list.addItem(curve.id)
self.params.curves[curve.id] = curve
if self.lst_list.count() > 0:
self.lst_list.setCurrentRow(0)
def new_element(self):
old_ids = []
if self.edit_type == self.edit_patterns:
for pattern in self.params.patterns.itervalues():
old_ids.append(pattern.id)
elif self.edit_type == self.edit_curves:
for curve in self.params.curves.itervalues():
old_ids.append(curve.id)
self.new_dialog = NewIdDialog(self, old_ids)
self.new_dialog.exec_()
new_id = self.new_dialog.get_newid()
description = self.new_dialog.get_description()
if new_id is None or description is None:
return
if self.edit_type == self.edit_patterns:
new_pattern = Pattern(new_id, description)
self.params.patterns[new_pattern.id] = new_pattern
self.lst_list.addItem(new_pattern.id)
elif self.edit_type == self.edit_curves:
curve_type = self.cbo_pump_type.itemData(
self.cbo_pump_type.currentIndex())
new_curve = Curve(new_id, curve_type, desc=description)
self.params.curves[new_curve.id] = new_curve
self.lst_list.addItem(new_curve.id)
self.lst_list.setCurrentRow(self.lst_list.count() - 1)
self.txt_id.setText(new_id)
self.txt_desc.setText(description)
# Clear table
self.clear_table()
self.static_canvas.axes.clear()
self.txt_id.setEnabled(True)
self.txt_desc.setEnabled(True)
self.btn_save.setEnabled(True)
self.btn_del.setEnabled(True)
self.table.setEnabled(True)
self.table.setEditTriggers(QAbstractItemView.AllEditTriggers)
def save(self):
self.need_to_update_graph = False
# Check for ID
if not self.txt_id.text():
QMessageBox.warning(
self,
Parameters.plug_in_name,
u'Please specify the ID.', # TODO: softcode
QMessageBox.Ok)
return
if self.edit_type == GraphDialog.edit_patterns:
values = []
for row in range(self.table.rowCount()):
item = self.table.item(row, 1)
if item is not None and item.text() != '':
values.append(self.from_item_to_val(item))
else:
values.append('0')
pattern = Pattern(self.txt_id.text(), self.txt_desc.text(), values)
old_patterns = self.params.patterns
old_patterns[pattern.id] = pattern
self.params.patterns = old_patterns
self.lst_list.currentItem().setText(pattern.id)
elif self.edit_type == GraphDialog.edit_curves:
# Check for ID unique
xs = []
ys = []
for row in range(self.table.rowCount()):
item_x = self.table.item(row, 0)
item_y = self.table.item(row, 1)
if item_x.text() != '' and item_y.text() != '':
xs.append(self.from_item_to_val(item_x))
ys.append(self.from_item_to_val(item_y))
curve_type = self.cbo_pump_type.itemData(
self.cbo_pump_type.currentIndex())
curve = Curve(self.txt_id.text(), curve_type, self.txt_desc.text())
for v in range(len(xs)):
curve.append_xy(xs[v], ys[v])
old_curves = self.params.curves
old_curves[curve.id] = curve
self.params.curves = old_curves
self.lst_list.currentItem().setText(curve.id)
# Update GUI
self.dockwidget.update_curves_combo()
# self.read()
self.need_to_update_graph = True
def clear_table(self):
self.need_to_update_graph = False
for r in range(self.table.rowCount()):
self.table.setItem(r, 0, QTableWidgetItem(None))
self.table.setItem(r, 1, QTableWidgetItem(None))
for row in range(self.rows_nr):
for col in range(self.cols_nr):
if self.edit_type == self.edit_patterns:
if col == 0:
item = QTableWidgetItem(str(row))
self.table.setItem(row, col, item)
item.setFlags(QtCore.Qt.ItemIsSelectable)
# elif col == 1 and row == 0:
# item = QTableWidgetItem(str(1))
# self.table.setItem(row, col, item)
# item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
# elif self.edit_type == self.edit_curves:
# if row == 0:
# item = QTableWidgetItem(str(0))
# self.table.setItem(row, 0, item)
# item = QTableWidgetItem(str(1))
# self.table.setItem(row, 1, item)
# item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
self.need_to_update_graph = True
def del_item(self):
selected_row = self.lst_list.currentRow()
name = self.lst_list.currentItem().text()
if selected_row < 0:
return
self.lst_list.takeItem(selected_row)
if self.lst_list.count() == 0:
self.txt_id.setEnabled(False)
self.txt_desc.setEnabled(False)
self.btn_save.setEnabled(False)
self.btn_del.setEnabled(False)
self.table.setEnabled(False)
self.table.setEditTriggers(QAbstractItemView.NoEditTriggers)
if self.edit_type == GraphDialog.edit_curves:
del self.params.curves[name]
# Update GUI
self.dockwidget.update_curves_combo()
elif self.edit_type == GraphDialog.edit_patterns:
del self.params.patterns[name]
# Update GUI
self.dockwidget.update_patterns_combo()
def data_changed(self):
if self.need_to_update_graph:
self.update_graph()
def update_table_headers(self):
if self.edit_type == self.edit_patterns:
self.x_label = 'Time period'
self.y_label = 'Multiplier'
elif self.edit_type == self.edit_curves:
cbo_data = self.cbo_pump_type.itemData(
self.cbo_pump_type.currentIndex())
if cbo_data == Curve.type_efficiency:
self.x_label = 'Flow ' + '[' + self.params.options.flow_units + ']'
self.y_label = 'Efficiency ' + '[' + self.params.options.units_deltaz[
self.params.options.units] + ']'
if cbo_data == Curve.type_headloss:
self.x_label = 'Flow ' + '[' + self.params.options.flow_units + ']'
self.y_label = 'Headloss ' + '[' + self.params.options.units_deltaz[
self.params.options.units] + ']'
if cbo_data == Curve.type_pump:
self.x_label = 'Flow ' + '[' + self.params.options.flow_units + ']'
self.y_label = 'Head ' + '[' + self.params.options.units_deltaz[
self.params.options.units] + ']'
if cbo_data == Curve.type_volume:
self.x_label = 'Height ' + '[' + self.params.options.flow_units + ']'
self.y_label = 'Volume ' + '[' + self.params.options.units_deltaz[
self.params.options.units] + ']'
self.table.setHorizontalHeaderLabels([self.x_label,
self.y_label]) # TODO: softcode
def update_graph(self):
if not self.need_to_update_graph:
return
xs = []
ys = []
for row in range(self.table.rowCount()):
item = self.table.item(row, 0)
x = self.from_item_to_val(item)
item = self.table.item(row, 1)
y = self.from_item_to_val(item)
if x is not None:
xs.append(float(x))
if y is not None:
ys.append(float(y))
if len(xs) == 0 or len(ys) == 0:
self.static_canvas.clear()
return
xys_t = zip(xs, ys)
xys_t.sort()
xys = zip(*xys_t)
xs = xys[0]
ys = xys[1]
if self.edit_type == self.edit_patterns:
y_axis_label = 'Mult. avg.: ' + '{0:.2f}'.format(
(numpy.average(ys)))
self.static_canvas.draw_bars_graph(
ys,
time_period=self.params.times.pattern_timestep,
y_axes_label=y_axis_label)
elif self.edit_type == self.edit_curves:
# Account for different types of curves
cbo_data = self.cbo_pump_type.itemData(
self.cbo_pump_type.currentIndex())
series_length = min(len(xs), len(ys))
# Need to account for different types of curves
if cbo_data == Curve.type_efficiency or cbo_data == Curve.type_headloss or cbo_data == Curve.type_volume:
self.static_canvas.draw_line_graph(xs[:series_length],
ys[:series_length],
self.x_label, self.y_label)
elif cbo_data == Curve.type_pump:
if series_length == 1 or series_length == 3:
if series_length == 1:
# 3 curve points
curve_xs = [0, xs[0], xs[0] * 2]
curve_ys = [ys[0] * 1.33, ys[0], 0]
# y = a * x^2 + b * x + c
elif series_length == 3:
# 3 curve points
curve_xs = [xs[0], xs[1], xs[2]]
curve_ys = [ys[0], ys[1], ys[2]]
(a, b, c) = numpy.polyfit(curve_xs, curve_ys, 2)
# Create a few interpolated values
interp_xs = []
interp_ys = []
n_vals = 30
for v in range(n_vals + 1):
x = (curve_xs[2] - curve_xs[0]) / n_vals * v
interp_xs.append(x)
y = a * x**2 + b * x + c
interp_ys.append(y)
self.static_canvas.draw_line_graph(interp_xs, interp_ys,
self.x_label,
self.y_label)
else:
self.static_canvas.draw_line_graph(xs[:series_length],
ys[:series_length],
self.x_label,
self.y_label)
def from_item_to_val(self, item):
if item is None:
value = None
else:
value = item.text()
try:
value = float(value)
value = max(value, 0)
except:
value = None
return value