def clampAngle(self, widget, val_min, val_max, val):
if val >= val_min and val <= val_max:
return val
input_format = USys.getAngleFormat()
val = min(val_max, max(val_min, val))
qty = Units.Quantity('{} deg'.format(val))
widget.setText(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value))
return val
def clampAngle(self, widget, val_min, val_max, val):
if val >= val_min and val <= val_max:
return val
input_format = USys.getAngleFormat()
val = min(val_max, max(val_min, val))
qty = Units.Quantity('{} deg'.format(val))
widget.setText(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value))
return val
def onData(self, value):
""" Method called when the tool input data is touched.
@param value Changed value.
"""
if not self.ship:
return
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.draft = self.widget(QtGui.QLineEdit, "Draft")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
# Get the values (or fix them in bad setting case)
try:
draft = Units.Quantity(Locale.fromString(
form.draft.text())).getValueAs('m').Value
except:
draft = self.ship.Draft.getValueAs(USys.getLengthUnits()).Value
input_format = USys.getLengthFormat()
qty = Units.Quantity('{} m'.format(draft))
widget.setText(
Locale.toString(
input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
try:
trim = Units.Quantity(Locale.fromString(
form.trim.text())).getValueAs('deg').Value
except:
trim = 0.0
input_format = USys.getAngleFormat()
qty = Units.Quantity('{} deg'.format(trim))
widget.setText(
Locale.toString(
input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
bbox = self.ship.Shape.BoundBox
draft_min = bbox.ZMin / Units.Metre.Value
draft_max = bbox.ZMax / Units.Metre.Value
draft = self.clampLength(form.draft, draft_min, draft_max, draft)
trim_min = -180.0
trim_max = 180.0
trim = self.clampAngle(form.trim, trim_min, trim_max, trim)
self.onUpdate()
self.preview.update(draft, trim, self.ship)
def onData(self, value):
""" Method called when the tool input data is touched.
@param value Changed value.
"""
if not self.ship:
return
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.draft = self.widget(QtGui.QLineEdit, "Draft")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
# Get the values (or fix them in bad setting case)
try:
draft = Units.Quantity(Locale.fromString(
form.draft.text())).getValueAs('m').Value
except:
draft = self.ship.Draft.getValueAs(USys.getLengthUnits()).Value
input_format = USys.getLengthFormat()
qty = Units.Quantity('{} m'.format(draft))
widget.setText(Locale.toString(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
try:
trim = Units.Quantity(Locale.fromString(
form.trim.text())).getValueAs('deg').Value
except:
trim = 0.0
input_format = USys.getAngleFormat()
qty = Units.Quantity('{} deg'.format(trim))
widget.setText(Locale.toString(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
bbox = self.ship.Shape.BoundBox
draft_min = bbox.ZMin / Units.Metre.Value
draft_max = bbox.ZMax / Units.Metre.Value
draft = self.clampLength(form.draft, draft_min, draft_max, draft)
trim_min = -180.0
trim_max = 180.0
trim = self.clampAngle(form.trim, trim_min, trim_max, trim)
self.onUpdate()
self.preview.update(draft, trim, self.ship)
def initValues(self):
""" Set initial values for fields
"""
selObjs = Gui.Selection.getSelection()
if not selObjs:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" objects selected)", None, QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
for i in range(0, len(selObjs)):
obj = selObjs[i]
props = obj.PropertiesList
try:
props.index("IsShip")
except ValueError:
continue
if obj.IsShip:
if self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"More than one ship have been selected (the extra"
" ships will be ignored)", None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintWarning(msg + '\n')
break
self.ship = obj
if not self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" valid ship found at the selected objects)", None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
length_format = USys.getLengthFormat()
angle_format = USys.getAngleFormat()
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.draft = self.widget(QtGui.QLineEdit, "Draft")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
form.draft.setText(
Locale.toString(
length_format.format(
self.ship.Draft.getValueAs(USys.getLengthUnits()).Value)))
form.trim.setText(Locale.toString(angle_format.format(0.0)))
# Try to use saved values
props = self.ship.PropertiesList
try:
props.index("AreaCurveDraft")
form.draft.setText(
Locale.toString(
length_format.format(
self.ship.AreaCurveDraft.getValueAs(
USys.getLengthUnits()).Value)))
except:
pass
try:
props.index("AreaCurveTrim")
form.trim.setText(
Locale.toString(
angle_format.format(
self.ship.AreaCurveTrim.getValueAs(
USys.getAngleUnits()).Value)))
except ValueError:
pass
# Update GUI
draft = Units.Quantity(form.draft.text()).getValueAs('m').Value
trim = Units.Quantity(form.trim.text()).getValueAs('deg').Value
self.preview.update(draft, trim, self.ship)
self.onUpdate()
return False
def initValues(self):
""" Set initial values for fields
"""
selObjs = Gui.Selection.getSelection()
if not selObjs:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" objects selected)",
None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
for i in range(0, len(selObjs)):
obj = selObjs[i]
props = obj.PropertiesList
try:
props.index("IsShip")
except ValueError:
continue
if obj.IsShip:
if self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"More than one ship have been selected (the extra"
" ships will be ignored)",
None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintWarning(msg + '\n')
break
self.ship = obj
if not self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" valid ship found at the selected objects)",
None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
length_format = USys.getLengthFormat()
angle_format = USys.getAngleFormat()
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.draft = self.widget(QtGui.QLineEdit, "Draft")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
form.num = self.widget(QtGui.QSpinBox, "Num")
form.draft.setText(Locale.toString(length_format.format(
self.ship.Draft.getValueAs(USys.getLengthUnits()).Value)))
form.trim.setText(Locale.toString(angle_format.format(0.0)))
# Try to use saved values
props = self.ship.PropertiesList
try:
props.index("AreaCurveDraft")
form.draft.setText(Locale.toString(length_format.format(
self.ship.AreaCurveDraft.getValueAs(
USys.getLengthUnits()).Value)))
except:
pass
try:
props.index("AreaCurveTrim")
form.trim.setText(Locale.toString(angle_format.format(
self.ship.AreaCurveTrim.getValueAs(
USys.getAngleUnits()).Value)))
except ValueError:
pass
try:
props.index("AreaCurveNum")
form.num.setValue(self.ship.AreaCurveNum)
except ValueError:
pass
# Update GUI
draft = Units.Quantity(form.draft.text()).getValueAs('m').Value
trim = Units.Quantity(form.trim.text()).getValueAs('deg').Value
self.preview.update(draft, trim, self.ship)
self.onUpdate()
return False
def initValues(self):
""" Set initial values for fields
"""
# Look for selected loading conditions (Spreadsheets)
self.lc = None
selObjs = Gui.Selection.getSelection()
if not selObjs:
msg = QtGui.QApplication.translate(
"ship_console",
"A loading condition instance must be selected before using" " this tool (no objects selected)",
None,
QtGui.QApplication.UnicodeUTF8,
)
App.Console.PrintError(msg + "\n")
return True
for i in range(len(selObjs)):
obj = selObjs[i]
try:
if obj.TypeId != "Spreadsheet::Sheet":
continue
except ValueError:
continue
# Check if it is a Loading condition:
# B1 cell must be a ship
# B2 cell must be the loading condition itself
doc = App.ActiveDocument
try:
if obj not in doc.getObjectsByLabel(obj.get("B2")):
continue
ships = doc.getObjectsByLabel(obj.get("B1"))
if len(ships) != 1:
if len(ships) == 0:
msg = QtGui.QApplication.translate(
"ship_console",
"Wrong Ship label! (no instances labeled as" "'{}' found)",
None,
QtGui.QApplication.UnicodeUTF8,
)
App.Console.PrintError(msg + "\n".format(obj.get("B1")))
else:
msg = QtGui.QApplication.translate(
"ship_console",
"Ambiguous Ship label! ({} instances labeled as" "'{}' found)",
None,
QtGui.QApplication.UnicodeUTF8,
)
App.Console.PrintError(msg + "\n".format(len(ships), obj.get("B1")))
continue
ship = ships[0]
if ship is None or not ship.PropertiesList.index("IsShip"):
continue
except ValueError:
continue
# Let's see if several loading conditions have been selected (and
# prompt a warning)
if self.lc:
msg = QtGui.QApplication.translate(
"ship_console",
"More than one loading condition have been selected (the"
" extra loading conditions will be ignored)",
None,
QtGui.QApplication.UnicodeUTF8,
)
App.Console.PrintWarning(msg + "\n")
break
self.lc = obj
self.ship = ship
if not self.lc:
msg = QtGui.QApplication.translate(
"ship_console",
"A loading condition instance must be selected before using"
" this tool (no valid loading condition found at the selected"
" objects)",
None,
QtGui.QApplication.UnicodeUTF8,
)
App.Console.PrintError(msg + "\n")
return True
# We have a valid loading condition, let's set the initial field values
angle_format = USys.getAngleFormat()
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.angle = self.widget(QtGui.QLineEdit, "Angle")
form.n_points = self.widget(QtGui.QSpinBox, "NumPoints")
form.var_trim = self.widget(QtGui.QCheckBox, "VariableTrim")
form.angle.setText(Locale.toString(angle_format.format(90.0)))
# Try to use saved values
props = self.ship.PropertiesList
try:
props.index("GZAngle")
form.angle.setText(
Locale.toString(angle_format.format(self.ship.GZAngle.getValueAs(USys.getAngleUnits()).Value))
)
except:
pass
try:
props.index("GZNumPoints")
form.n_points.setValue(self.ship.GZNumPoints)
except ValueError:
pass
try:
props.index("GZVariableTrim")
if self.ship.GZVariableTrim:
form.var_trim.setCheckState(QtCore.Qt.Checked)
else:
form.var_trim.setCheckState(QtCore.Qt.Unchecked)
except ValueError:
pass
return False
def onData(self, value):
""" Method called when input data is changed.
@param value Changed value.
"""
if not self.ship:
return
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
form.minDraft = self.widget(QtGui.QLineEdit, "MinDraft")
form.maxDraft = self.widget(QtGui.QLineEdit, "MaxDraft")
# Get the values (or fix them in bad setting case)
try:
trim = Units.Quantity(Locale.fromString(
form.trim.text())).getValueAs('deg').Value
except:
trim = 0.0
input_format = USys.getAngleFormat()
qty = Units.Quantity('{} deg'.format(trim))
form.trim.setText(
Locale.toString(
input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
try:
min_draft = Units.Quantity(Locale.fromString(
form.minDraft.text())).getValueAs('m').Value
except:
min_draft = 0.9 * self.ship.Draft.getValueAs('m').Value
input_format = USys.getLengthFormat()
qty = Units.Quantity('{} m'.format(min_draft))
form.minDraft.setText(
Locale.toString(
input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
try:
max_draft = Units.Quantity(Locale.fromString(
form.minDraft.text())).getValueAs('m').Value
except:
max_draft = 0.9 * self.ship.Draft.getValueAs('m').Value
input_format = USys.getLengthFormat()
qty = Units.Quantity('{} m'.format(max_draft))
form.maxDraft.setText(
Locale.toString(
input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value)))
# Clamp the values to the bounds
bbox = self.ship.Shape.BoundBox
draft_min = bbox.ZMin / Units.Metre.Value
draft_max = bbox.ZMax / Units.Metre.Value
min_draft = self.clampLength(form.minDraft, draft_min, draft_max,
min_draft)
max_draft = self.clampLength(form.maxDraft, draft_min, draft_max,
max_draft)
trim_min = -180.0
trim_max = 180.0
trim = self.clampAngle(form.trim, trim_min, trim_max, trim)
# Clamp draft values to assert that the minimum value is lower than
# the maximum one
min_draft = self.clampLength(form.minDraft, draft_min, max_draft,
min_draft)
max_draft = self.clampLength(form.maxDraft, min_draft, draft_max,
max_draft)
def initValues(self):
""" Set initial values for fields
"""
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
form.minDraft = self.widget(QtGui.QLineEdit, "MinDraft")
form.maxDraft = self.widget(QtGui.QLineEdit, "MaxDraft")
form.nDraft = self.widget(QtGui.QSpinBox, "NDraft")
selObjs = Gui.Selection.getSelection()
if not selObjs:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" objects selected)", None, QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
for i in range(len(selObjs)):
obj = selObjs[i]
props = obj.PropertiesList
try:
props.index("IsShip")
except ValueError:
continue
if obj.IsShip:
if self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"More than one ship have been selected (the extra"
" ships will be ignored)", None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintWarning(msg + '\n')
break
self.ship = obj
if not self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" valid ship found at the selected objects)", None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
props = self.ship.PropertiesList
length_format = USys.getLengthFormat()
angle_format = USys.getAngleFormat()
try:
props.index("HydrostaticsTrim")
form.trim.setText(
Locale.toString(
angle_format.format(
self.ship.HydrostaticsTrim.getValueAs(
USys.getLengthUnits()).Value)))
except ValueError:
form.trim.setText(Locale.toString(angle_format.format(0.0)))
try:
props.index("HydrostaticsMinDraft")
form.minDraft.setText(
Locale.toString(
length_format.format(
self.ship.HydrostaticsMinDraft.getValueAs(
USys.getLengthUnits()).Value)))
except ValueError:
form.minDraft.setText(
Locale.toString(
length_format.format(0.9 * self.ship.Draft.getValueAs(
USys.getLengthUnits()).Value)))
try:
props.index("HydrostaticsMaxDraft")
form.maxDraft.setText(
Locale.toString(
length_format.format(
self.ship.HydrostaticsMaxDraft.getValueAs(
USys.getLengthUnits()).Value)))
except ValueError:
form.maxDraft.setText(
Locale.toString(
length_format.format(1.1 * self.ship.Draft.getValueAs(
USys.getLengthUnits()).Value)))
try:
props.index("HydrostaticsNDraft")
form.nDraft.setValue(self.ship.HydrostaticsNDraft)
except ValueError:
pass
return False
def onData(self, value):
""" Method called when input data is changed.
@param value Changed value.
"""
if not self.ship:
return
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
form.minDraft = self.widget(QtGui.QLineEdit, "MinDraft")
form.maxDraft = self.widget(QtGui.QLineEdit, "MaxDraft")
# Get the values (or fix them in bad setting case)
try:
trim = Units.Quantity(form.trim.text()).getValueAs('deg').Value
except:
trim = 0.0
input_format = USys.getAngleFormat()
qty = Units.Quantity('{} deg'.format(trim))
form.trim.setText(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value))
try:
min_draft = Units.Quantity(
form.minDraft.text()).getValueAs('m').Value
except:
min_draft = 0.9 * self.ship.Draft.getValueAs('m').Value
input_format = USys.getLengthFormat()
qty = Units.Quantity('{} m'.format(min_draft))
form.minDraft.setText(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value))
try:
max_draft = Units.Quantity(
form.minDraft.text()).getValueAs('m').Value
except:
max_draft = 0.9 * self.ship.Draft.getValueAs('m').Value
input_format = USys.getLengthFormat()
qty = Units.Quantity('{} m'.format(max_draft))
form.maxDraft.setText(input_format.format(
qty.getValueAs(USys.getLengthUnits()).Value))
# Clamp the values to the bounds
bbox = self.ship.Shape.BoundBox
draft_min = bbox.ZMin / Units.Metre.Value
draft_max = bbox.ZMax / Units.Metre.Value
min_draft = self.clampLength(form.minDraft,
draft_min,
draft_max,
min_draft)
max_draft = self.clampLength(form.maxDraft,
draft_min,
draft_max,
max_draft)
trim_min = -180.0
trim_max = 180.0
trim = self.clampAngle(form.trim, trim_min, trim_max, trim)
# Clamp draft values to assert that the minimum value is lower than
# the maximum one
min_draft = self.clampLength(form.minDraft,
draft_min,
max_draft,
min_draft)
max_draft = self.clampLength(form.maxDraft,
min_draft,
draft_max,
max_draft)
def initValues(self):
""" Set initial values for fields
"""
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.trim = self.widget(QtGui.QLineEdit, "Trim")
form.minDraft = self.widget(QtGui.QLineEdit, "MinDraft")
form.maxDraft = self.widget(QtGui.QLineEdit, "MaxDraft")
form.nDraft = self.widget(QtGui.QSpinBox, "NDraft")
selObjs = Gui.Selection.getSelection()
if not selObjs:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" objects selected)",
None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
for i in range(len(selObjs)):
obj = selObjs[i]
props = obj.PropertiesList
try:
props.index("IsShip")
except ValueError:
continue
if obj.IsShip:
if self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"More than one ship have been selected (the extra"
" ships will be ignored)",
None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintWarning(msg + '\n')
break
self.ship = obj
if not self.ship:
msg = QtGui.QApplication.translate(
"ship_console",
"A ship instance must be selected before using this tool (no"
" valid ship found at the selected objects)",
None,
QtGui.QApplication.UnicodeUTF8)
App.Console.PrintError(msg + '\n')
return True
props = self.ship.PropertiesList
length_format = USys.getLengthFormat()
angle_format = USys.getAngleFormat()
try:
props.index("HydrostaticsTrim")
form.trim.setText(angle_format.format(
self.ship.HydrostaticsTrim.getValueAs(
USys.getLengthUnits()).Value))
except ValueError:
form.trim.setText(angle_format.format(0.0))
try:
props.index("HydrostaticsMinDraft")
form.minDraft.setText(length_format.format(
self.ship.HydrostaticsMinDraft.getValueAs(
USys.getLengthUnits()).Value))
except ValueError:
form.minDraft.setText(length_format.format(
0.9 * self.ship.Draft.getValueAs('m').Value))
try:
props.index("HydrostaticsMaxDraft")
form.maxDraft.setText(length_format.format(
self.ship.HydrostaticsMaxDraft.getValueAs(
USys.getLengthUnits()).Value))
except ValueError:
form.maxDraft.setText(length_format.format(
1.1 * self.ship.Draft.getValueAs('m').Value))
try:
props.index("HydrostaticsNDraft")
form.nDraft.setValue(self.ship.HydrostaticsNDraft)
except ValueError:
pass
return False
def initValues(self):
""" Set initial values for fields
"""
# Look for selected loading conditions (Spreadsheets)
self.lc = None
selObjs = Gui.Selection.getSelection()
if not selObjs:
msg = QtGui.QApplication.translate(
"ship_console",
"A loading condition instance must be selected before using"
" this tool (no objects selected)", None)
App.Console.PrintError(msg + '\n')
return True
for i in range(len(selObjs)):
obj = selObjs[i]
try:
if obj.TypeId != 'Spreadsheet::Sheet':
continue
except ValueError:
continue
# Check if it is a Loading condition:
# B1 cell must be a ship
# B2 cell must be the loading condition itself
doc = App.ActiveDocument
try:
if obj not in doc.getObjectsByLabel(obj.get('B2')):
continue
ships = doc.getObjectsByLabel(obj.get('B1'))
if len(ships) != 1:
if len(ships) == 0:
msg = QtGui.QApplication.translate(
"ship_console",
"Wrong Ship label! (no instances labeled as"
"'{}' found)", None)
App.Console.PrintError(msg +
'\n'.format(obj.get('B1')))
else:
msg = QtGui.QApplication.translate(
"ship_console",
"Ambiguous Ship label! ({} instances labeled as"
"'{}' found)", None)
App.Console.PrintError(
msg + '\n'.format(len(ships), obj.get('B1')))
continue
ship = ships[0]
if ship is None or not ship.PropertiesList.index("IsShip"):
continue
except ValueError:
continue
# Let's see if several loading conditions have been selected (and
# prompt a warning)
if self.lc:
msg = QtGui.QApplication.translate(
"ship_console",
"More than one loading condition have been selected (the"
" extra loading conditions will be ignored)", None)
App.Console.PrintWarning(msg + '\n')
break
self.lc = obj
self.ship = ship
if not self.lc:
msg = QtGui.QApplication.translate(
"ship_console",
"A loading condition instance must be selected before using"
" this tool (no valid loading condition found at the selected"
" objects)", None)
App.Console.PrintError(msg + '\n')
return True
# We have a valid loading condition, let's set the initial field values
angle_format = USys.getAngleFormat()
mw = self.getMainWindow()
form = mw.findChild(QtGui.QWidget, "TaskPanel")
form.angle = self.widget(QtGui.QLineEdit, "Angle")
form.n_points = self.widget(QtGui.QSpinBox, "NumPoints")
form.var_trim = self.widget(QtGui.QCheckBox, "VariableTrim")
form.angle.setText(Locale.toString(angle_format.format(90.0)))
# Try to use saved values
props = self.ship.PropertiesList
try:
props.index("GZAngle")
form.angle.setText(
Locale.toString(
angle_format.format(
self.ship.GZAngle.getValueAs(
USys.getAngleUnits()).Value)))
except:
pass
try:
props.index("GZNumPoints")
form.n_points.setValue(self.ship.GZNumPoints)
except ValueError:
pass
try:
props.index("GZVariableTrim")
if self.ship.GZVariableTrim:
form.var_trim.setCheckState(QtCore.Qt.Checked)
else:
form.var_trim.setCheckState(QtCore.Qt.Unchecked)
except ValueError:
pass
return False
