def __init__(self,parent,id,x,y,width,height): style = wx.WANTS_CHARS | wx.FULL_REPAINT_ON_RESIZE wx.glcanvas.GLCanvas.__init__(self,parent,id,wx.DefaultPosition,wx.DefaultSize,style) width,height = self.GetClientSize() self.viewer = osgViewer.Viewer() self.viewer.setThreadingModel(osgViewer.Viewer.SingleThreaded) self.viewer.addEventHandler(osgViewer.StatsHandler()) self.viewer.setCameraManipulator(osgGA.TrackballManipulator()) self.graphicswindow = self.viewer.setUpViewerAsEmbeddedInWindow(0,0,width,height) if self.graphicswindow.valid(): self.old_cursor = wx.STANDARD_CURSOR self.Bind(wx.EVT_SIZE, self.OnSize) self.Bind(wx.EVT_PAINT, self.OnPaint) self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground) self.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown) self.Bind(wx.EVT_KEY_UP, self.OnKeyUp) self.Bind(wx.EVT_MOUSE_EVENTS, self.OnMouse)
def initializeGL (self):
"""initializeGL the context and create the osgViewer, also set manipulator and event handler """
self.gw = self.createContext()
self.viewer = self.createViewer()
#init the default eventhandler
self.viewer.setCameraManipulator(osgGA.TrackballManipulator())
self.viewer.addEventHandler(osgViewer.StatsHandler())
self.viewer.addEventHandler(osgViewer.HelpHandler())
QtCore.QObject.connect(self.timer, QtCore.SIGNAL("timeout ()"), self.updateGL)
self.timer.start(0)
def createViewer(self):
"""create a osgViewer.Viewer and set the viewport, camera and previously created graphical context """
global viewerFactory
viewer = viewerFactory()
#init the default eventhandler
# self.viewer.setCameraManipulator(osgGA.TrackballManipulator())
viewer.addEventHandler(osgViewer.StatsHandler())
viewer.addEventHandler(osgViewer.HelpHandler())
viewer.getUpdateVisitor().setTraversalMask(UPDATE_MASK)
self.resetCamera(viewer)
return viewer
def __init__(self, glconfig, viewer=None, window=None):
gtk.DrawingArea.__init__(self)
# Set OpenGL-capability to the drawing area
self.set_gl_capability(glconfig)
# Connect the relevant signals.
self.connect_after('realize', self._on_realize)
self.connect('configure_event', self._on_configure_event)
self.connect('expose_event', self._on_expose_event)
self.connect("key_press_event", self._on_key_press_event)
self.add_events(gtk.gdk.BUTTON_PRESS_MASK
| gtk.gdk.BUTTON_RELEASE_MASK)
self.__motion_events = 0
self.__motion_events |= gtk.gdk.BUTTON_MOTION_MASK
self.__motion_events |= gtk.gdk.POINTER_MOTION_MASK
self.add_events(self.__motion_events)
self.connect('motion_notify_event', self._on_mouse_event)
self.connect("button_press_event", self._on_mouse_event)
self.connect("button_release_event", self._on_mouse_event)
#experimental: Stereo in a window
#self.ds = osg.DisplaySettings_instance()
#self.ds.setStereo(True)
#self.ds.setStereoMode(osg.DisplaySettings.QUAD_BUFFER)
if viewer is None:
self.viewer = osgViewer.Viewer()
else:
self.viewer = viewer
self.osgwindow = self.viewer.setUpViewerAsEmbeddedInWindow(
0, 0, 200, 200)
# one could try using a pythonic alternative:
# self.osgwindow = self.setup_osgwindow(0,0,200,200)
self.viewer.setCameraManipulator(osgGA.TrackballManipulator())
self.viewer.addEventHandler(osgViewer.StatsHandler())
self.viewer.addEventHandler(osgViewer.HelpHandler())
self.rootnode = osg.MatrixTransformRef(osg.MatrixTransform())
self.viewer.setSceneData(self.rootnode.get())
self._x, self._y = 0, 0
root.addChild(dynamicTransform4.__disown__()) #to prevent direct destruction you can create a variable for the callback #rotcb = RotateCB() #dynamicTransform.setUpdateCallback(rotcb.__disown__()) #or call the disown function: dynamicTransform.setUpdateCallback(RotateCB().__disown__()) #create the viewer, set the scene and run viewer = osgViewer.Viewer() viewer.setThreadingModel(osgViewer.Viewer.SingleThreaded) #set the scene data viewer.setSceneData(root.__disown__()) #add the stats event handler viewer.addEventHandler(osgViewer.StatsHandler()) pickhandler = PickHandler() #pickhandler = osgGA.GUIEventHandler() viewer.addEventHandler(pickhandler.__disown__()) #run the viewer viewer.run() #or call the following functions #viewer.realize() #viewer.setCameraManipulator(osgGA.TrackballManipulator()) #while not viewer.done(): # viewer.frame() #set an empty node for clean-up step viewer.setSceneData(None)
def main():
# use an ArgumentParser object to manage the program arguments.
#arguments = osg.ArgumentParser()
#construct the viewer.
viewer = osgViewer.Viewer()
#need to use singlethreaded mode
viewer.setThreadingModel(viewer.SingleThreaded)
# add the stats
viewer.addEventHandler(osgViewer.StatsHandler())
# add the record camera path handler
viewer.addEventHandler(osgViewer.RecordCameraPathHandler())
#add the threading handler
viewer.addEventHandler(osgViewer.ThreadingHandler())
#if user request help write it out to cout.
#if (arguments.read("-h") or arguments.read("--help")):
# arguments.getApplicationUsage().write(sys.stdout)
# return 1
tex_width = 1024
tex_height = 512
samples = 0
colorSamples = 0
renderImplementation = osg.Camera.FRAME_BUFFER_OBJECT
useImage = False
useTextureRectangle = False
useHDR = False
# if not loaded assume no arguments passed in, try use default mode instead.
loadedModel = osgDB.readNodeFile("cessna.osg")
# create a transform to spin the model.
loadedModelTransform = osg.MatrixTransform()
loadedModelTransform.addChild(loadedModel)
nc = osg.AnimationPathCallback(
osg.Vec3d(loadedModelTransform.getBound().center()),
osg.Vec3d(0.0, 0.0, 1.0), osg.inDegrees(45.0))
loadedModelTransform.setUpdateCallback(nc)
rootNode = osg.Group()
rootNode.addChild(createPreRenderSubGraph(loadedModelTransform,\
tex_width,tex_height, \
renderImplementation, \
useImage, useTextureRectangle, \
useHDR, samples, colorSamples))
osgDB.writeNodeFile(rootNode, "test.ive")
# add model to the viewer.
viewer.setSceneData(rootNode)
viewer.run()
