WorldViz User Forum - Visible On/Off for a "menu"

WorldViz User Forum (https://forum.worldviz.com/index.php)

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

- - Visible On/Off for a "menu" (https://forum.worldviz.com/showthread.php?t=1275)

Visible On/Off for a "menu"

Hi... I'm trying to make visible or not pushing a key for a future menu...

Code:

import viz

viz.go()



menuScene = viz.addScene()



menuView = viz.addView()

menuView.setScene(menuScene)



menuWindow = viz.addWindow()

menuWindow.setClearMask(viz.GL_DEPTH_BUFFER_BIT)

menuWindow.setPosition(0,1)

menuWindow.setSize(1,1)

menuWindow.viewpoint(menuView)



#Create root node for menu quads

menu = viz.addGroup(scene = menuScene)

menu.translate(0,1.8,5)



#Create texture to apply to quads

tex = viz.addTexture('ball.jpg')



quad = viz.addTexQuad(parent=menu)

quad.texture(tex)

quad.alpha(0.7)



        

vizact.onkeydown( 'a', menuScene.visible(viz.ON) )

vizact.onkeydown( 's', menuScene.visible(viz.OFF) )







viz.add('gallery.ive')

When I push 'a' or 's', show this:
Traceback (most recent call last):
File "C:\Arquivos de programas\WorldViz\Vizard30/python\vizact.py", line 2667, in __onkeydown
self._callGroup(self.__keydownmap[key])
File "C:\Arquivos de programas\WorldViz\Vizard30/python\vizact.py", line 2619, in _callGroup
val = e.call(arg)
File "C:\Arquivos de programas\WorldViz\Vizard30/python\vizact.py", line 2470, in _callStatic
return self.func(*self.args,**self.kwargs)
TypeError: 'NoneType' object is not callable

What can I do!?
thanks,
Murilo

I found a way!

Code:

import viz

viz.go()



menuScene = viz.addScene()



menuView = viz.addView()

menuView.setScene(menuScene)



menuWindow = viz.addWindow()

menuWindow.setClearMask(viz.GL_DEPTH_BUFFER_BIT)

menuWindow.setPosition(0,1)

menuWindow.setSize(1,1)

menuWindow.viewpoint(menuView)



#Create root node for menu quads

menu = viz.addGroup(scene = menuScene)

menu.translate(0,1.8,5)



#Create texture to apply to quads

tex = viz.addTexture('ball.jpg')



quad = viz.addTexQuad(parent=menu)

quad.texture(tex)

quad.alpha(0.7)





def press(key):

        if key == 'a':

                menuScene.visible(viz.ON)

        if key == 'b':

                menuScene.visible(viz.OFF)

viz.callback(viz.KEYBOARD_EVENT, press)



viz.add('gallery.ive')

The problem with the original code was that you were using the vizact.onkeydown command incorrectly. It should be:

Code:

vizact.onkeydown( 'a', menuScene.visible,viz.ON)

vizact.onkeydown( 's', menuScene.visible,viz.OFF)

The second parameter to the command needs to be a function object. All other parameters will be passed to the function when the specified key is pressed.