class CameraPathProperty (gsc.UpdateProperty) :
CameraPathProperty()
CameraPathProperty( str filename) setAnimationPathFileName(filename)
CameraPathProperty( CameraPathProperty cpp, osg.CopyOp copyop=osg.CopyOp.SHALLOW_COPY)
META_Object(gsc, CameraPathProperty)
def setAnimationPathFileName(filename):
_filename = filename loadAnimationPath()
def getAnimationPathFileName():
return _filename
def setAnimationPath(ap):
_animationPath = ap
def getAnimationPath():
return _animationPath
def getAnimationPath():
return _animationPath
bool getTimeRange(double startTime, double endTime)
resetTimeRange = void(double startTime, double endTime)
update = virtual void(osgViewer.View* view)
virtual ~CameraPathProperty()
loadAnimationPath = void()
_filename = str()
_animationPath = osg.AnimationPath()
def createLights(bb, rootStateSet):
lightGroup = osg.Group()
modelSize = bb.radius()
# create a spot light.
myLight1 = osg.Light()
myLight1.setLightNum(0)
myLight1.setPosition(osg.Vec4(bb.corner(4),1.0))
myLight1.setAmbient(osg.Vec4(1.0,0.0,0.0,1.0))
myLight1.setDiffuse(osg.Vec4(1.0,0.0,0.0,1.0))
myLight1.setSpotCutoff(20.0)
myLight1.setSpotExponent(50.0)
myLight1.setDirection(osg.Vec3(1.0,1.0,-1.0))
lightS1 = osg.LightSource()
lightS1.setLight(myLight1)
lightS1.setLocalStateSetModes(osg.StateAttribute.ON)
lightS1.setStateSetModes(*rootStateSet,osg.StateAttribute.ON)
lightGroup.addChild(lightS1)
# create a local light.
myLight2 = osg.Light()
myLight2.setLightNum(1)
myLight2.setPosition(osg.Vec4(0.0,0.0,0.0,1.0))
myLight2.setAmbient(osg.Vec4(0.0,1.0,1.0,1.0))
myLight2.setDiffuse(osg.Vec4(0.0,1.0,1.0,1.0))
myLight2.setConstantAttenuation(1.0)
myLight2.setLinearAttenuation(2.0/modelSize)
myLight2.setQuadraticAttenuation(2.0/osg.square(modelSize))
lightS2 = osg.LightSource()
lightS2.setLight(myLight2)
lightS2.setLocalStateSetModes(osg.StateAttribute.ON)
lightS2.setStateSetModes(*rootStateSet,osg.StateAttribute.ON)
mt = osg.MatrixTransform()
# set up the animation path
animationPath = osg.AnimationPath()
animationPath.insert(0.0,osg.AnimationPath.ControlPoint(bb.corner(0)))
animationPath.insert(1.0,osg.AnimationPath.ControlPoint(bb.corner(1)))
animationPath.insert(2.0,osg.AnimationPath.ControlPoint(bb.corner(2)))
animationPath.insert(3.0,osg.AnimationPath.ControlPoint(bb.corner(3)))
animationPath.insert(4.0,osg.AnimationPath.ControlPoint(bb.corner(4)))
animationPath.insert(5.0,osg.AnimationPath.ControlPoint(bb.corner(5)))
animationPath.insert(6.0,osg.AnimationPath.ControlPoint(bb.corner(6)))
animationPath.insert(7.0,osg.AnimationPath.ControlPoint(bb.corner(7)))
animationPath.insert(8.0,osg.AnimationPath.ControlPoint(bb.corner(0)))
animationPath.setLoopMode(osg.AnimationPath.SWING)
mt.setUpdateCallback(osg.AnimationPathCallback(animationPath))
def createAnimationPath(center, radius, looptime):
# set up the animation path
animationPath = osg.AnimationPath()
animationPath.setLoopMode(osg.AnimationPath.LOOP)
numSamples = 40
yaw = 0.0
yaw_delta = 2.0*osg.PI/(numSamples-1.0)
roll = osg.inDegrees(30.0)
time = 0.0
time_delta = looptime/float(numSamples)
for i in range(numSamples):
position = center+osg.Vec3(math.sin(yaw)*radius,math.cos(yaw)*radius,0.0)
rotation = osg.Quat(roll,osg.Vec3(0.0,1.0,0.0))*osg.Quat(-(yaw+osg.inDegrees(90.0)),osg.Vec3(0.0,0.0,1.0))
animationPath.insert(time,osg.AnimationPath.ControlPoint(position,rotation))
yaw += yaw_delta
time += time_delta
return animationPath
def createAnimationPath(center, radius, looptime):
# set up the animation path
animationPath = osg.AnimationPath()
animationPath.setLoopMode(osg.AnimationPath.LOOP)
numSamples = 1000
yaw = 0.0
yaw_delta = -2.0*osg.PI/((float)numSamples-1.0)
roll = osg.inDegrees(30.0)
time = 0.0
time_delta = looptime/(double)numSamples
for(int i=0i<numSamples++i)
position = osg.Vec3(center+osg.Vec3(sinf(yaw)*radius,cosf(yaw)*radius,0.0))
rotation = osg.Quat(osg.Quat(roll,osg.Vec3(0.0,1.0,0.0))*osg.Quat(-(yaw+osg.inDegrees(90.0)),osg.Vec3(0.0,0.0,1.0)))
animationPath.insert(time,osg.AnimationPath.ControlPoint(position,rotation))
yaw += yaw_delta
time += time_delta
def main(argv):
# use an ArgumentParser object to manage the program arguments.
arguments = osg.ArgumentParser(argv)
# set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage().setDescription(arguments.getApplicationName()+" is the example which demonstrates use of node tracker.")
arguments.getApplicationUsage().setCommandLineUsage(arguments.getApplicationName())
arguments.getApplicationUsage().addCommandLineOption("-h or --help","Display this information")
# construct the viewer.
viewer = osgViewer.Viewer(arguments)
# add the state manipulator
viewer.addEventHandler( osgGA.StateSetManipulator(viewer.getCamera().getOrCreateStateSet()) )
# add the thread model handler
viewer.addEventHandler(osgViewer.ThreadingHandler)()
# add the window size toggle handler
viewer.addEventHandler(osgViewer.WindowSizeHandler)()
# add the stats handler
viewer.addEventHandler(osgViewer.StatsHandler)()
# add the record camera path handler
viewer.addEventHandler(osgViewer.RecordCameraPathHandler)()
# add the help handler
viewer.addEventHandler(osgViewer.HelpHandler(arguments.getApplicationUsage()))
# set the near far ration computation up.
viewer.getCamera().setComputeNearFarMode(osg.CullSettings.COMPUTE_NEAR_FAR_USING_PRIMITIVES)
viewer.getCamera().setNearFarRatio(0.000003)
speed = 1.0
while arguments.read("-f") or arguments.read("--fixed") : speed = 0.0
rotation = osg.Quat()
vec4 = osg.Vec4()
while arguments.read("--rotate-model",vec4[0],vec4[1],vec4[2],vec4[3]) :
local_rotate = osg.Quat()
local_rotate.makeRotate(osg.DegreesToRadians(vec4[0]),vec4[1],vec4[2],vec4[3])
rotation = rotation * local_rotate
nc = 0
flightpath_filename = str()
while arguments.read("--flight-path",flightpath_filename) :
fin = osgDB.ifstream(flightpath_filename.c_str())
if fin :
path = osg.AnimationPath()
path.read(fin)
nc = osg.AnimationPathCallback(path)
trackerMode = osgGA.NodeTrackerManipulator.NODE_CENTER_AND_ROTATION
mode = str()
while arguments.read("--tracker-mode",mode) :
if mode=="NODE_CENTER_AND_ROTATION" : trackerMode = osgGA.NodeTrackerManipulator.NODE_CENTER_AND_ROTATION
elif mode=="NODE_CENTER_AND_AZIM" : trackerMode = osgGA.NodeTrackerManipulator.NODE_CENTER_AND_AZIM
elif mode=="NODE_CENTER" : trackerMode = osgGA.NodeTrackerManipulator.NODE_CENTER
else:
print "Unrecognized --tracker-mode option ", mode, ", valid options are:"
print " NODE_CENTER_AND_ROTATION"
print " NODE_CENTER_AND_AZIM"
print " NODE_CENTER"
return 1
rotationMode = osgGA.NodeTrackerManipulator.TRACKBALL
while arguments.read("--rotation-mode",mode) :
if mode=="TRACKBALL" : rotationMode = osgGA.NodeTrackerManipulator.TRACKBALL
elif mode=="ELEVATION_AZIM" : rotationMode = osgGA.NodeTrackerManipulator.ELEVATION_AZIM
else:
print "Unrecognized --rotation-mode option ", mode, ", valid options are:"
print " TRACKBALL"
print " ELEVATION_AZIM"
return 1
useOverlay = True
while arguments.read("--no-overlay") or arguments.read("-n") : useOverlay = False
technique = osgSim.OverlayNode.OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY
while arguments.read("--object") : technique = osgSim.OverlayNode.OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY
while arguments.read("--ortho") or arguments.read("--orthographic") : technique = osgSim.OverlayNode.VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY
while arguments.read("--persp") or arguments.read("--perspective") : technique = osgSim.OverlayNode.VIEW_DEPENDENT_WITH_PERSPECTIVE_OVERLAY
overlayTextureUnit = 1
while arguments.read("--unit", overlayTextureUnit) :
pathfile = str()
while arguments.read("-p",pathfile) :
addFireEffect = arguments.read("--fire")
# if user request help write it out to cout.
if arguments.read("-h") or arguments.read("--help") :
arguments.getApplicationUsage().write(std.cout)
return 1
tm = osgGA.NodeTrackerManipulator()
overlayFilename = str()
while arguments.read("--overlay", overlayFilename) :
# read the scene from the list of file specified commandline args.
root = osgDB.readNodeFiles(arguments)
if not root : root = createEarth()
if not root : return 0
if not overlayFilename.empty() :
#osg.Object *pObj = osgDB.readObjectFile("alaska_clean.shp")
#osg.Geode shapefile = dynamic_cast<osg.Geode*> (pObj)
#
#ConvertLatLon2EllipsoidCoordinates latlon2em
#shapefile.accept(latlon2em)
shapefile = osgDB.readNodeFile(overlayFilename)
if not shapefile :
osg.notify(osg.NOTICE), "File `", overlayFilename, "` not found"
return 1
csn = dynamic_cast<osg.CoordinateSystemNode*>(root)
if csn :
overlayNode = osgSim.OverlayNode(technique)
overlayNode.getOrCreateStateSet().setTextureAttribute(1, osg.TexEnv(osg.TexEnv.DECAL))
overlayNode.setOverlaySubgraph(shapefile)
overlayNode.setOverlayTextureSizeHint(1024)
overlayNode.setOverlayTextureUnit(overlayTextureUnit)
# insert the OverlayNode between the coordinate system node and its children.
for(unsigned int i=0 i<csn.getNumChildren() ++i)
overlayNode.addChild( csn.getChild(i) )
csn.removeChildren(0, csn.getNumChildren())
csn.addChild(overlayNode)
viewer.setSceneData(csn)
else:
overlayNode = osgSim.OverlayNode(technique)
overlayNode.getOrCreateStateSet().setTextureAttribute(1, osg.TexEnv(osg.TexEnv.DECAL))
overlayNode.setOverlaySubgraph(shapefile)
overlayNode.setOverlayTextureSizeHint(1024)
overlayNode.addChild(root)
viewer.setSceneData(overlayNode)
else:
# add a viewport to the viewer and attach the scene graph.
viewer.setSceneData(root)
csn = dynamic_cast<osg.CoordinateSystemNode*>(root)
if csn :
overlayNode = osgSim.OverlayNode()
if useOverlay :
overlayNode = osgSim.OverlayNode(technique)
# insert the OverlayNode between the coordinate system node and its children.
for(unsigned int i=0 i<csn.getNumChildren() ++i)
overlayNode.addChild( csn.getChild(i) )
csn.removeChildren(0, csn.getNumChildren())
csn.addChild(overlayNode)
# tell the overlay node to continously update its overlay texture
# as we know we'll be tracking a moving target.
overlayNode.setContinuousUpdate(True)
cessna = osgDB.readNodeFile("cessna.osgt")
if cessna :
s = 200000.0 / cessna.getBound().radius()
scaler = osg.MatrixTransform()
scaler.addChild(cessna)
scaler.setMatrix(osg.Matrixd.scale(s,s,s)*osg.Matrixd.rotate(rotation))
scaler.getOrCreateStateSet().setMode(GL_RESCALE_NORMAL,osg.StateAttribute.ON)
if addFireEffect :
center = cessna.getBound().center()
fire = osgParticle.FireEffect(center, 10.0)
scaler.addChild(fire)
if False :
ss = osgSim.SphereSegment(
osg.Vec3(0.0,0.0,0.0), # center
19.9, # radius
osg.DegreesToRadians(135.0),
osg.DegreesToRadians(240.0),
osg.DegreesToRadians(-10.0),
osg.DegreesToRadians(30.0),
60)
scaler.addChild(ss)
mt = osg.MatrixTransform()
mt.addChild(scaler)
if not nc : nc = ModelPositionCallback(speed)
mt.setUpdateCallback(nc)
csn.addChild(mt)
# if we are using an overaly node, use the cessna subgraph as the overlay subgraph
if overlayNode.valid() :
overlayNode.setOverlaySubgraph(mt)
tm = osgGA.NodeTrackerManipulator()
tm.setTrackerMode(trackerMode)
tm.setRotationMode(rotationMode)
tm.setTrackNode(scaler)
else:
print "Failed to read cessna.osgt"
# set up camera manipulators.
keyswitchManipulator = osgGA.KeySwitchMatrixManipulator()
if tm.valid() : keyswitchManipulator.addMatrixManipulator( ord("0"), "NodeTracker", tm )
keyswitchManipulator.addMatrixManipulator( ord("1"), "Trackball", osgGA.TrackballManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("2"), "Flight", osgGA.FlightManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("3"), "Drive", osgGA.DriveManipulator() )
keyswitchManipulator.addMatrixManipulator( ord("4"), "Terrain", osgGA.TerrainManipulator() )
if not pathfile.empty() :
apm = osgGA.AnimationPathManipulator(pathfile)
if apm or not apm.valid() :
num = keyswitchManipulator.getNumMatrixManipulators()
keyswitchManipulator.addMatrixManipulator( ord("5"), "Path", apm )
keyswitchManipulator.selectMatrixManipulator(num)
viewer.setCameraManipulator( keyswitchManipulator )
# viewer.setThreadingModel(osgViewer.Viewer.SingleThreaded)
return viewer.run()
if __name__ == "__main__":
main(sys.argv)
void CameraPathProperty.update(osgViewer.View* view)
camera = view.getCamera()
fs = view.getFrameStamp()
if _animationPath.valid() :
cp = osg.AnimationPath.ControlPoint()
_animationPath.getInterpolatedControlPoint( fs.getSimulationTime(), cp )
OSG_NOTICE, "CameraPathProperty ", fs.getFrameNumber(), " ", fs.getSimulationTime()
matrix = osg.Matrixd()
cp.getMatrix( matrix )
camera.setViewMatrix( osg.Matrix.inverse(matrix) )
void CameraPathProperty.loadAnimationPath()
_animationPath = osg.AnimationPath()
#_animationPath.setLoopMode(osg.AnimationPath.LOOP)
in = osgDB.ifstream(_filename.c_str())
if not in :
OSG_WARN, "CameraPathProperty: Cannot open animation path file \"", _filename, "\".\n"
return
_animationPath.read(in)
bool CameraPathProperty.getTimeRange(double startTime, double endTime)
if not _animationPath : return False
tcpm = _animationPath.getTimeControlPointMap()
if tcpm.empty() : return False