Orientation selective (Viewing Vector) Proximity Sensor

[lmGehrke]

For a research paradigm I want to implement a proximity sensor that is activated when a subject is looking, facing its heading direction towards a certain object. I could only find the proximity sensor function for certain positions and not orientation.

So I would like something like this:

initialHeadingPole = viz.add('pole.wrl')
initialHeadingPoleSensor = vizproximity.Sensor(vizproximity.RectangleArea([3,2]), source=initialHeadingPole)

manager = vizproximity.Manager()
manager.setDebug(viz.ON)
#debugEventHandle = vizact.onkeydown('d',manager.setDebug,viz.TOGGLE)
#Add main viewpoint as proximity target
target = vizproximity.Target(viz.MainView)
manager.addSensor(initialHeadingPoleSensor)

Any help would be greatly appreciated!

[mape2k]

Hi,

you don't need sensors to do that. I would rather use a timer to call a function every frame that constantly checks the view direction and sends a signal when a certain value is reached, e.g.:

import viz
import viztask


arena = viz.addChild('pit.osgb')

angleSignal = viztask.Signal()
checkedAngle = 90		# at which view angle should the sensor be activated?


def checkViewAngle():
	[yaw,picht,roll] = viz.MainView.getEuler()
	
	if int(yaw) == checkedAngle:
		angleSignal.send()
		print('Angle detected!')

orientationSensor = vizact.ontimer(0,checkViewAngle)	# start the function

viz.go()

[lmGehrke]

hi,

thanks, exactly what i needed!