Re: [Visualpython-users] Text disappears after hiding the scene ...

[Bruce S. <Bru...@nc...>]

The only significant differences that I know of between Visual 3 and 
Visual 5 are that the following have not (yet) been implemented in 
Visual 5: scene.cursor.visible, and right-button and middle-button mouse 
events. These are listed as known bugs in the statement of new features 
in the documentation for Visual 5.

Bruce Sherwood

Stef Mientki wrote:
> thanks Bruce,
> 
> I didn't know that,
> and indeed it works like a charm.
> So now I can really test the differences between VP3 and VP5 ;-)
> I'll report my findings.
> 
> cheers,
> Stef
> 
> Bruce Sherwood wrote:
>> But "hide" IS supported. It's unfortunate that there was a 
>> scene.hide() that was undocumented (and not implemented in Visual 5), 
>> but it has always been the case that scene.visible = False has worked 
>> in all versions of Visual.
>>
>> Nor am I sure that I understand what is meant by "resize not allowed 
>> during visible". Do you mean setting scene.width and scene.height? 
>> That didn't work in Visual 3, either. The following resizing works in 
>> both Visual 3 and Visual 5:
>>
>> from visual import *
>> box()
>> scene.mouse.getclick()
>> scene.visible = False
>> scene.width = 800
>> scene.visible = True
>>
>> Bruce Sherwood
>>
>> Stef Mientki wrote:
>>> Bruce Sherwood wrote:
>>>> That's a very strange bug in VP3; I have no idea what is the cause. 
>>>> I note that creating a new label after making the window visible 
>>>> fails to show any text, though the box surrounding the (nonvisible) 
>>>> text is the appropriate width. If on the other hand no label is 
>>>> created before the window manipulations are carried out, a new label 
>>>> does show text. Very strange.
>>>>
>>>> The only workaround that I can see is to use VP5.
>>>>
>>> I was afraid to get that answer ;-)
>>> And yes, probably it's the best way to go,
>>> but then embedding of VPython isn't possible anymore ( hide not 
>>> supported, resize not allowed during visible)
>>> :-(
>>>
>>> thanks anyway,
>>> cheers,
>>> Stef
>>>> Bruce Sherwood
>>>>
>>>> Stef Mientki wrote:
>>>>> hello,
>>>>>
>>>>> the simple program below, hiding the scene for a moment,
>>>>> lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
>>>>> Is there a workaround ?
>>>>>
>>>>> thanks,
>>>>> Stef
>>>>>
>>>>>
>>>>> from visual import *
>>>>>
>>>>> label ( text = 'Click to show problem' )
>>>>>
>>>>> while True :
>>>>>   rate ( 50 )
>>>>>   if scene.mouse.clicked > 0 :
>>>>>     while scene.mouse.clicked > 0 :
>>>>>       scene.mouse.getclick()
>>>>>     scene.visible = False
>>>>>     scene.visible = True
>>>>>
>>>>>
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