WorldViz User Forum - osg Sequence

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- Vizard (https://forum.worldviz.com/forumdisplay.php?f=17)

- - osg Sequence (https://forum.worldviz.com/showthread.php?t=3872)

Hi,

Im loading an ive file with an osg sequence that i would like to control.

Whats the best way of doing this?

I would like to be able to stop, start and set the current time of the sequence.

Thanks

TarkaDahl

There's currently no built-in support for this, but we will add it to a future release.

If you are familiar with C++ programming and OpenSceneGraph, you could write a Vizard extension that does this. Our SDK is freely available and contains an example for writing an extension that interacts with the underlying scene graph of a node.

Hi

Im having a problem with this ive been looking at the example of creating an modifier using the sdk but how do a get from the osg::Node to the osg::sequence
ive looked at the documentation here.
http://www.openscenegraph.org/docume...cs/a00654.html
and it explains functions that i need to call on the osg sequence but i cant find how to get to the osg::sequence

Sorry it that doesnt make sence. but ive not used c++ for a while and have only done the basics of OpenSceneGraph.

I will do more reading about it later but any help would be good.

Thanks

TarkaDahl

Support for controlling osg::Sequence nodes is in the latest version of Vizard (4.02). Here is some sample code:

Code:

import viz

viz.go()



model = viz.add('sequence.ive',pos=(0,1.5,4))



osg = viz.add('SceneGraphTools.dle')

sequence = osg.Sequence(model)



import vizact

vizact.onkeydown(' ',sequence.setMode,vizact.choice([sequence.PAUSE,sequence.RESUME]))

vizact.onkeydown('r',sequence.setMode,sequence.START)

vizact.onkeydown('1',sequence.setFrame,50)

And here is the help print out of the sequence control class:

Code:

class Sequence(object)

 |  Methods defined here:

 |  

 |  __init__(self, node, name='')

 |  

 |  getBegin(self)

 |      Get the begin frame

 |  

 |  getClearOnStop(self)

 |      Get whether to show no children after stopping

 |  

 |  getEnd(self)

 |      Get the end frame

 |  

 |  getFrame(self)

 |      Get the current frame

 |  

 |  getFrameCount(self)

 |      Get the number fo frames

 |  

 |  getFrameTime(self, frame)

 |      Get the time for the specified frame

 |  

 |  getLoopMode(self)

 |      Get the sequence loop mode

 |  

 |  getMode(self)

 |      Get the sequence mode

 |  

 |  getNumRepeats(self)

 |      Get the number of repeat times

 |  

 |  getSpeed(self)

 |      Get the sequence speed

 |  

 |  getSync(self)

 |      Get whether to sync frames with frame time

 |  

 |  iterFrameTimes(self)

 |      Returns iterator that yields frame time values

 |  

 |  setBegin(self, begin)

 |      Set the begin frame

 |  

 |  setClearOnStop(self, clearOnStop)

 |      Set whether to show no children after stopping

 |  

 |  setEnd(self, end)

 |      Set the end frame

 |  

 |  setFrame(self, frame)

 |      Set the current frame

 |  

 |  setLoopMode(self, mode)

 |      Set the sequence loop mode

 |  

 |  setMode(self, mode)

 |      Set the sequence mode

 |  

 |  setNumRepeats(self, repeats)

 |      Set the number of times to repeat

 |  

 |  setSpeed(self, speed)

 |      Set the sequence speed

 |  

 |  setSync(self, sync)

 |      Set whether to sync frames with frame time

hi farshizzo,

Thanks for that it works like a dream.

Thanks