WorldViz User Forum - 360 panorama image cube using as darts target and record the xy coordinates

Greetings. I am a GIS Analyst and would like to use the 360 panorama image cube as walls so that users of the program can create 'marks' on the 360 panorama image cube (e.g. like a darts game); in this regard I plan to record the xy coordinates of locations marked by users throwing a beach ball in a given direction.

I currently am engaging in research using Vizard software with a head mounded display device (zSight). I have been learning the relevant programming skills using tutorials and examples provided by Worldviz. However, I am not a gaming programmer and am having difficulties with specific aspects the required programming.

In order to more specifically describe my difficulties, I have recreated a framework of my research environment using resources provided by Worldviz, as per the code shown below. All codes are from the 360 panorama and duck court examples. (Please note that I do not have access to more advanced software like 3ds Max, so if I need to create 3D objects then Google Sketchup is my only choice.)

I am having the following three difficulties:

Is it possible to create 'marks' for the user-identified location points on the 360 panorama image cube excluding the top and bottom (much like the 'push pins' or 2D circles that identify specific locations on a Google map)? If not, how would be best to mark a given user-designated location? (Please note that I used 'beachball.osgb' in the code posting, and shot balls go forever since velocity is constant and the 360 panorama image cube presents no obstacles to stop the ball -- the idea is that shot beach balls are required to stick on the 360 panorama image);
How do I assign or retrieve XY coordinates for recording? (For example, a North cube face [x, y] , a 'negx' face [x, y], and so on...); and
I am using 'crosshair.png' to replace a mouse arrow pointer. However, I have both a crosshair and mouse arrow pointer when I execute the program. How should I replace the arrow pointer with a crosshair?

I very much appreciate any assistance you could provide in this regard.

Thanks so much!

Code:

import viz



viz.setMultiSample(4)

viz.fov(60)

viz.go()



env = viz.addEnvironmentMap('townhall_L.jpg')

sky = viz.addCustomNode('skydome.dlc')

sky.texture(env)





NUM_BALLS        = 3 

BALL_SPEED        = 5 



viz.link( viz.Mouse , viz.addTexQuad(viz.SCREEN,texture=viz.add('crosshair.png')) )





balls = []



#Enable physics, but don't use gravity

viz.phys.enable()

viz.phys.setGravity([0,0,0])



#Initialize all the balls

for x in range(NUM_BALLS):

        #Create a ball

        ball = viz.addChild('beachball.osgb',pos=(0,0,-40),cache=viz.CACHE_CLONE)



        #Enable collisions with the ball based on a sphere shape

        ball.collideSphere()



        #We want to be notified of the balls collisions

        ball.enable(viz.COLLIDE_NOTIFY)



        #Add the ball to the ball list

        balls.append(ball)



#Create cycle for balls

nextBall = viz.cycle(balls)



#Shoot a ball

def shootBall():

        #Find the next available ball to shoot

        ball = nextBall.next()



        #Calculate the vector of the ball based on the mouse position

        line = viz.MainWindow.screenToWorld(viz.mouse.getPosition())

        line.length = BALL_SPEED



        #Translate the ball to the head position

        ball.setPosition(line.begin)



        #Reset ball and set velocity

        ball.reset()

        ball.setVelocity(line.dir)



        #Play the gunshot sound

        viz.playSound('gunshot.wav')



#Shoot a ball whenever left mousebutton is clicked

vizact.onmousedown(viz.MOUSEBUTTON_LEFT,shootBall)



#Make sure balls maintain constant velocity

def UpdateVelocity():

        for ball in balls:

                ball.setVelocity(viz.Vector(ball.getVelocity(),length=BALL_SPEED))

vizact.ontimer(0,UpdateVelocity)