vizinfo in multiple scenes

[vadrian]

hi, im trying to use the vizinfo module but the boxes only seem to appear in scene 1.
how can I add an info box to a different scene (while in another one)?
or how can I make a box appear after calling viz.scene(#>1) ?

thanks

[farshizzo]

Hi,

Do you want the same box in different scenes? If so, try the following:

info = vizinfo.add(....)
#Duplicate the box onto scene 2
info._group.duplicate(2)

If you have an older version then try this instead:

info.group.duplicate(2)

I think you asked a question a few months ago about adding checkboxes and sliders to the vizinfo box. Version 2.5 of Vizard now allows you to do this, you might want to check it out.

[vadrian]

how should i do it if I want to add multiple vizinfos into different scenes (at least 2 per scene).

also, is there a way I can check the version number of vizard so i can send an error message if the user tries to run a script in an older version?

[farshizzo]

Hi,

To add the vizinfo box to a different scene try the following:

#Place info box in scene 2
info._group.parent(viz.WORLD,2)

The following command will return a string that specifies the current version of Vizard:

version = viz.version()

[vadrian]

so i tried what you suggested, but it doesn't seem to work. i even made a little test script:

import viz
import vizinfo

viz.go()
viz.clearcolor(.5,.5,.5)

info = vizinfo.add('message')

scene = 1
def onkeydown(key):
	global info, scene
	#The keyboard button 'key' is being pressed
	if key == ' ':
		scene += 1
		viz.scene(scene)
	
	if key == 'd':
		info._group.duplicate(scene)
		
	if key == 'm':
		info._group.parent(viz.WORLD, scene)

viz.callback(viz.KEYDOWN_EVENT,onkeydown)

[farshizzo]

My bad, it should be:

info._group.parent(viz.SCREEN, scene)

[vadrian]

ok, so the parent trick works (maybe this should be added as a feature in future versions?). now i get an error when i try to scale vizinfo. what i have is this:

INFO_SIZE = [0.5,0.5]
info = vizinfo.add('blah')
info.scale(INFO_SIZE)

what I get is this:

Traceback (most recent call last):
    File "<string>", line 12, in ?
    File "context_recall_02.py", line 123, in ?
        infoBox.scale(INFO_SIZE)
TypeError: scale() takes exactly 3 arguments (2 given)

[farshizzo]

The older version of vizinfo didn't support passing lists to the scale function. You will have to pass each value individually:

info.scale(INFO_SIZE[0],INFO_SIZE[1])

or you could also do the following:

info.scale(*INFO_SIZE)

[vadrian]

i have both 2.5 and the previous version (2.1?) installed. I was getting that error while using 2.5. Is it possible vizard was grabbing the vizinfo from the older version?

also, random python question. is there a python equivalent to:

x = (isBoolean)? y:z

i have a lot of checks, and i'm tired of repeating the 4 line if/else template

[farshizzo]

It might be possible. Startup 2.5 and check the value of the following in the interactive window:

viz._WIN_VIZ_PATH

It should point to "C:\Program Files\Vizard25" or wherever you installed 2.5

Python doesn't support the one line if/else. If you can guarentee that the value of the boolean will always be either 0 or 1 you could do the following:

x = [z,y][isBoolean]

Otherwise you could create your own function:

def ifelse(boolean,trueVal,falseVal):
	if boolean:
		return trueVal
	return falseVal

x = ifelse(isBoolean,y,z)