def __init__(self, parent=None):
'''
Call the super class init functions
'''
QtGui.QWidget.__init__(self, parent)
self._sceneviewer = None
self._sceneviewernotifier = None
self._enableUpdates = False
self._maximumClippingDistance = 1
# Using composition to include the visual element of the GUI.
self.ui = Ui_SceneviewerEditorWidget()
self.ui.setupUi(self)
def __init__(self, parent=None):
'''
Call the super class init functions
'''
QtGui.QWidget.__init__(self, parent)
self._sceneviewer = None
self._sceneviewernotifier = None
self._enableUpdates = False
self._maximumClippingDistance = 1
# Using composition to include the visual element of the GUI.
self.ui = Ui_SceneviewerEditorWidget()
self.ui.setupUi(self)
class SceneviewerEditorWidget(QtGui.QWidget):
def __init__(self, parent=None):
'''
Call the super class init functions
'''
QtGui.QWidget.__init__(self, parent)
self._sceneviewer = None
self._sceneviewernotifier = None
self._enableUpdates = False
self._maximumClippingDistance = 1
# Using composition to include the visual element of the GUI.
self.ui = Ui_SceneviewerEditorWidget()
self.ui.setupUi(self)
def getSceneviewer(self):
'''
Get the sceneviewer currently in the editor
'''
return self._sceneviewer
def setSceneviewer(self, sceneviewer):
'''
Set the current sceneviewer in the editor
'''
if not (sceneviewer and sceneviewer.isValid()):
if self._sceneviewernotifier is not None:
self._sceneviewernotifier.clearCallback()
self._sceneviewernotifier = None
self._sceneviewer = None
return
self._sceneviewer = sceneviewer
self._maximumClippingDistance = sceneviewer.getFarClippingPlane()
self._sceneviewernotifier = sceneviewer.createSceneviewernotifier()
self.setEnableUpdates(self._enableUpdates)
self._displayAllSettings()
def setEnableUpdates(self, enableUpdates):
self._enableUpdates = enableUpdates
if self._sceneviewernotifier is not None:
if enableUpdates:
self._sceneviewernotifier.setCallback(self._sceneviewerChange)
self._displayViewSettings()
else:
self._sceneviewernotifier.clearCallback()
def _sceneviewerChange(self, event):
'''
Change to scene viewer; update view widgets if transformation changed
'''
changeFlags = event.getChangeFlags()
if changeFlags & Sceneviewerevent.CHANGE_FLAG_TRANSFORM:
self._displayViewSettings()
def _displayAllSettings(self):
'''
Show the current scene viewer settings on the view widgets
'''
self._displayViewSettings()
self.backgroundColourDisplay()
def _displayViewSettings(self):
'''
Show the current view-related scene viewer settings on the view widgets
'''
self.viewAngleDisplay()
self.eyePointDisplay()
self.lookatPointDisplay()
self.upVectorDisplay()
self.nearClippingDisplay()
self.farClippingDisplay()
def _displayReal(self, widget, value):
'''
Display real value in a widget
'''
newText = '{:.5g}'.format(value)
widget.setText(newText)
def _displayVector(self, widget, values, numberFormat='{:.5g}'):
'''
Display real vector values in a widget
'''
newText = ", ".join(numberFormat.format(value) for value in values)
widget.setText(newText)
def _parseVector(self, widget):
'''
Return real vector from comma separated text in line edit widget
'''
text = widget.text()
values = [float(value) for value in text.split(',')]
if len(values) < 1:
raise
return values
def viewAll(self):
'''
Change sceneviewer to see all of scene.
'''
self._sceneviewer.viewAll()
self._maximumClippingDistance = self._sceneviewer.getFarClippingPlane()
self._displayViewSettings()
def perspectiveStateChanged(self, state):
'''
Set perspective/parallel projection
'''
if state:
projectionMode = Sceneviewer.PROJECTION_MODE_PERSPECTIVE
else:
projectionMode = Sceneviewer.PROJECTION_MODE_PARALLEL
self._sceneviewer.setProjectionMode(projectionMode)
def viewAngleDisplay(self):
'''
Display the current scene viewer diagonal view angle
'''
viewAngleRadians = self._sceneviewer.getViewAngle()
viewAngleDegrees = viewAngleRadians * 180.0 / math.pi
self._displayReal(self.ui.view_angle, viewAngleDegrees)
def viewAngleEntered(self):
'''
Set scene viewer diagonal view angle from value in the view angle widget
'''
try:
viewAngleRadians = float(
self.ui.view_angle.text()) * math.pi / 180.0
if ZINC_OK != self._sceneviewer.setViewAngle(viewAngleRadians):
raise
except:
print("Invalid view angle")
self.viewAngleDisplay()
def setLookatParametersNonSkew(self):
'''
Set eye, lookat point and up vector simultaneous in non-skew projection
'''
eye = self._parseVector(self.ui.eye_point)
lookat = self._parseVector(self.ui.lookat_point)
up_vector = self._parseVector(self.ui.up_vector)
if ZINC_OK != self._sceneviewer.setLookatParametersNonSkew(
eye, lookat, up_vector):
raise
def eyePointDisplay(self):
'''
Display the current scene viewer eye point
'''
result, eye = self._sceneviewer.getEyePosition()
self._displayVector(self.ui.eye_point, eye)
def eyePointEntered(self):
'''
Set scene viewer wyw point from text in widget
'''
try:
self.setLookatParametersNonSkew()
except:
print("Invalid eye point")
self.eyePositionDisplay()
def lookatPointDisplay(self):
'''
Display the current scene viewer lookat point
'''
result, lookat = self._sceneviewer.getLookatPosition()
self._displayVector(self.ui.lookat_point, lookat)
def lookatPointEntered(self):
'''
Set scene viewer lookat point from text in widget
'''
try:
self.setLookatParametersNonSkew()
except:
print("Invalid lookat point")
self.lookatPositionDisplay()
def upVectorDisplay(self):
'''
Display the current scene viewer eye point
'''
result, up_vector = self._sceneviewer.getUpVector()
self._displayVector(self.ui.up_vector, up_vector)
def upVectorEntered(self):
'''
Set scene viewer up vector from text in widget
'''
try:
self.setLookatParametersNonSkew()
except:
print("Invalid up vector")
self.upVectorDisplay()
def nearClippingDisplay(self):
'''
Display the current near clipping plane distance
'''
near = self._sceneviewer.getNearClippingPlane()
value = int(10001.0 * near / self._maximumClippingDistance) - 1
# don't want signal for my change
self.ui.near_clipping_slider.blockSignals(True)
self.ui.near_clipping_slider.setValue(value)
self.ui.near_clipping_slider.blockSignals(False)
def nearClippingChanged(self, value):
'''
Set near clipping plane distance from slider
'''
near = (value + 1) * self._maximumClippingDistance / 10001.0
self._sceneviewer.setNearClippingPlane(near)
def farClippingDisplay(self):
'''
Display the current far clipping plane distance
'''
value = int(10001.0 * self._sceneviewer.getFarClippingPlane() /
self._maximumClippingDistance) - 1
self.ui.far_clipping_slider.blockSignals(True)
self.ui.far_clipping_slider.setValue(value)
self.ui.far_clipping_slider.blockSignals(False)
def farClippingChanged(self, value):
'''
Set far clipping plane distance from slider
'''
far = (value + 1) * self._maximumClippingDistance / 10001.0
self._sceneviewer.setFarClippingPlane(far)
def backgroundColourDisplay(self):
'''
Display the current scene viewer eye point
'''
result, colourRGB = self._sceneviewer.getBackgroundColourRGB()
self._displayVector(self.ui.background_colour, colourRGB)
def backgroundColourEntered(self):
'''
Set scene viewer diagonal view angle from value in the view angle widget
'''
try:
colourRGB = self._parseVector(self.ui.background_colour)
if ZINC_OK != self._sceneviewer.setBackgroundColourRGB(colourRGB):
raise
except:
print("Invalid background colour")
self.backgroundColourDisplay()
class SceneviewerEditorWidget(QtGui.QWidget):
def __init__(self, parent=None):
'''
Call the super class init functions
'''
QtGui.QWidget.__init__(self, parent)
self._sceneviewer = None
self._sceneviewernotifier = None
self._enableUpdates = False
self._maximumClippingDistance = 1
# Using composition to include the visual element of the GUI.
self.ui = Ui_SceneviewerEditorWidget()
self.ui.setupUi(self)
def getSceneviewer(self):
'''
Get the sceneviewer currently in the editor
'''
return self._sceneviewer
def setSceneviewer(self, sceneviewer):
'''
Set the current sceneviewer in the editor
'''
if not (sceneviewer and sceneviewer.isValid()):
if self._sceneviewernotifier is not None:
self._sceneviewernotifier.clearCallback()
self._sceneviewernotifier = None
self._sceneviewer = None
return
self._sceneviewer = sceneviewer
self._maximumClippingDistance = sceneviewer.getFarClippingPlane()
self._sceneviewernotifier = sceneviewer.createSceneviewernotifier()
self.setEnableUpdates(self._enableUpdates)
self._displayAllSettings()
def setEnableUpdates(self, enableUpdates):
self._enableUpdates = enableUpdates
if self._sceneviewernotifier is not None:
if enableUpdates:
self._sceneviewernotifier.setCallback(self._sceneviewerChange)
self._displayViewSettings()
else:
self._sceneviewernotifier.clearCallback()
def _sceneviewerChange(self, event):
'''
Change to scene viewer; update view widgets if transformation changed
'''
changeFlags = event.getChangeFlags()
if changeFlags & Sceneviewerevent.CHANGE_FLAG_TRANSFORM:
self._displayViewSettings()
def _displayAllSettings(self):
'''
Show the current scene viewer settings on the view widgets
'''
self._displayViewSettings()
self.backgroundColourDisplay()
def _displayViewSettings(self):
'''
Show the current view-related scene viewer settings on the view widgets
'''
self.viewAngleDisplay()
self.eyePointDisplay()
self.lookatPointDisplay()
self.upVectorDisplay()
self.nearClippingDisplay()
self.farClippingDisplay()
def _displayReal(self, widget, value):
'''
Display real value in a widget
'''
newText = '{:.5g}'.format(value)
widget.setText(newText)
def _displayVector(self, widget, values, numberFormat = '{:.5g}'):
'''
Display real vector values in a widget
'''
newText = ", ".join(numberFormat.format(value) for value in values)
widget.setText(newText)
def _parseVector(self, widget):
'''
Return real vector from comma separated text in line edit widget
'''
text = widget.text()
values = [float(value) for value in text.split(',')]
if len(values) < 1:
raise
return values
def viewAll(self):
'''
Change sceneviewer to see all of scene.
'''
self._sceneviewer.viewAll()
self._maximumClippingDistance = self._sceneviewer.getFarClippingPlane()
self._displayViewSettings()
def perspectiveStateChanged(self, state):
'''
Set perspective/parallel projection
'''
if state:
projectionMode = Sceneviewer.PROJECTION_MODE_PERSPECTIVE
else:
projectionMode = Sceneviewer.PROJECTION_MODE_PARALLEL
self._sceneviewer.setProjectionMode(projectionMode)
def viewAngleDisplay(self):
'''
Display the current scene viewer diagonal view angle
'''
viewAngleRadians = self._sceneviewer.getViewAngle()
viewAngleDegrees = viewAngleRadians*180.0/math.pi
self._displayReal(self.ui.view_angle, viewAngleDegrees)
def viewAngleEntered(self):
'''
Set scene viewer diagonal view angle from value in the view angle widget
'''
try:
viewAngleRadians = float(self.ui.view_angle.text())*math.pi/180.0
if ZINC_OK != self._sceneviewer.setViewAngle(viewAngleRadians):
raise
except:
print("Invalid view angle")
self.viewAngleDisplay()
def setLookatParametersNonSkew(self):
'''
Set eye, lookat point and up vector simultaneous in non-skew projection
'''
eye = self._parseVector(self.ui.eye_point)
lookat = self._parseVector(self.ui.lookat_point)
up_vector = self._parseVector(self.ui.up_vector)
if ZINC_OK != self._sceneviewer.setLookatParametersNonSkew(eye, lookat, up_vector):
raise
def eyePointDisplay(self):
'''
Display the current scene viewer eye point
'''
result, eye = self._sceneviewer.getEyePosition()
self._displayVector(self.ui.eye_point, eye)
def eyePointEntered(self):
'''
Set scene viewer wyw point from text in widget
'''
try:
self.setLookatParametersNonSkew()
except:
print("Invalid eye point")
self.eyePositionDisplay()
def lookatPointDisplay(self):
'''
Display the current scene viewer lookat point
'''
result, lookat = self._sceneviewer.getLookatPosition()
self._displayVector(self.ui.lookat_point, lookat)
def lookatPointEntered(self):
'''
Set scene viewer lookat point from text in widget
'''
try:
self.setLookatParametersNonSkew()
except:
print("Invalid lookat point")
self.lookatPositionDisplay()
def upVectorDisplay(self):
'''
Display the current scene viewer eye point
'''
result, up_vector = self._sceneviewer.getUpVector()
self._displayVector(self.ui.up_vector, up_vector)
def upVectorEntered(self):
'''
Set scene viewer up vector from text in widget
'''
try:
self.setLookatParametersNonSkew()
except:
print("Invalid up vector")
self.upVectorDisplay()
def nearClippingDisplay(self):
'''
Display the current near clipping plane distance
'''
near = self._sceneviewer.getNearClippingPlane()
value = int(10001.0*near/self._maximumClippingDistance) - 1
# don't want signal for my change
self.ui.near_clipping_slider.blockSignals(True)
self.ui.near_clipping_slider.setValue(value)
self.ui.near_clipping_slider.blockSignals(False)
def nearClippingChanged(self, value):
'''
Set near clipping plane distance from slider
'''
near = (value + 1)*self._maximumClippingDistance/10001.0
self._sceneviewer.setNearClippingPlane(near)
def farClippingDisplay(self):
'''
Display the current far clipping plane distance
'''
value = int(10001.0*self._sceneviewer.getFarClippingPlane()/self._maximumClippingDistance) - 1
self.ui.far_clipping_slider.blockSignals(True)
self.ui.far_clipping_slider.setValue(value)
self.ui.far_clipping_slider.blockSignals(False)
def farClippingChanged(self, value):
'''
Set far clipping plane distance from slider
'''
far = (value + 1)*self._maximumClippingDistance/10001.0
self._sceneviewer.setFarClippingPlane(far)
def backgroundColourDisplay(self):
'''
Display the current scene viewer eye point
'''
result, colourRGB = self._sceneviewer.getBackgroundColourRGB()
self._displayVector(self.ui.background_colour, colourRGB)
def backgroundColourEntered(self):
'''
Set scene viewer diagonal view angle from value in the view angle widget
'''
try:
colourRGB = self._parseVector(self.ui.background_colour)
if ZINC_OK != self._sceneviewer.setBackgroundColourRGB(colourRGB):
raise
except:
print("Invalid background colour")
self.backgroundColourDisplay()
