Viewpoint displace

[farshizzo]

Hi,

Vizard 3.0 has an entirely new interface for linking trackers to views and nodes. To link the tracker to the viewpoint with the specified offset you would do something like the following:

viewLink = viz.link(tracker,viz.MainView)
viewLink.preTrans(LED_CAMERA_OFFSET)

[Andrey]

Please take a look at the code:

view = viz.get(viz.MAIN_VIEWPOINT)
led1 = viz.add('vizppt.dls')
PORT_INTERSENSE = 2
gyro = viz.add('intersense.dls')
LED_CAMERA_OFFSET = [0,-0.15,0.25]
viewLink = viz.link(gyro,viz.MainView)
viewLink.preTrans(LED_CAMERA_OFFSET)
viz.tracker()

What is wrong?

[farshizzo]

Hi,

Try the following code:

led1 = viz.add('vizppt.dls')
PORT_INTERSENSE = 2
gyro = viz.add('intersense.dls')
LED_CAMERA_OFFSET = [0,-0.15,0.25]
viewLink = viz.link(viz.mergeLinkable(led1,gyro),viz.MainView)
viewLink.preTrans(LED_CAMERA_OFFSET)

You do not need to use viz.tracker() when using links. Also, you need to combine the ppt and intersense tracker into a single 6DOF object. This is what the viz.mergeLinkable command does.

[Andrey]

Thank you, the offset works. But how to "incline" viewvector (cameras orientation differs from InertiaCube orientaion)?

[farshizzo]

Hi,

You can apply a offset rotation to the intersense by adding the following code:

viewLink.preEuler([0,-5,0],target=viz.LINK_ORI_OP) #Tilt intersense 5 degrees up

[Andrey]

Thanks a lot. Problem is solved.