visualpython-users

[Visualpython-users] problem with slider

[leau2001 <lea...@fr...>]

Hi all,

I hve a problem with slider.
When i used one, the slider value init=0  and why not the mini i chose... ?

Program :

from visual.controls import *

c = controls() # Create controls window

def calcul (d,e):
   
    #result=int(d/e)
    print d, e
    print txt

b = slider( pos=(-20,20), width=6, height=20, min=10000, max=100000, 
action=lambda: calcul(60000,txt)) # Create a slider in the controls window:


while 1:
       
    c.interact() # Check for mouse events and drive specified actions
   
    txt=b.value
    txt=int(txt)
    print txt
    #result=60000/txt
    #print result

When you run this program like this, you see the slider value are on 
0... and the when you touch the slider a little, slider value come's to 
10000 as the min value.
But why this slider value is 0 at the beginning and not the min value ?

thx for help

lo

Re: [Visualpython-users] problem with slider

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

Thanks very much for the clear report. It turned out that the controls 
module never had treated a nonzero minimum correctly. I sent a corrected 
version of controls.py to Leau. I will of course update VPython to 
incorporate the corrections.

Bruce Sherwood

leau2001 wrote:

> Hi all,
>
> I hve a problem with slider.
> When i used one, the slider value init=0  and why not the mini i 
> chose... ?
>
> Program :
>
> from visual.controls import *
>
> c = controls() # Create controls window
>
> def calcul (d,e):
>      #result=int(d/e)
>    print d, e
>    print txt
>
> b = slider( pos=(-20,20), width=6, height=20, min=10000, max=100000, 
> action=lambda: calcul(60000,txt)) # Create a slider in the controls 
> window:
>
>
> while 1:
>          c.interact() # Check for mouse events and drive specified 
> actions
>      txt=b.value
>    txt=int(txt)
>    print txt
>    #result=60000/txt
>    #print result
>
> When you run this program like this, you see the slider value are on 
> 0... and the when you touch the slider a little, slider value come's 
> to 10000 as the min value.
> But why this slider value is 0 at the beginning and not the min value ?
>
> thx for help
>
> lo
>
>
>
>
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Re: [Visualpython-users] problem with slider

[Laney M. <mi...@co...>]

Hi Bruce,  Gary has helped me with a couple of Python questions.  Since 
you use VPython a lot, do you know how to adjust the dot size for 
vpython 2d plots.  I want to make the Mandelbrot set, which needs the 
highest resolution I can get, one pixel per dot if possible.  I think 
the control of dot size is done deep down in some library function 
called by vpython.  I was just hoping you had seen how to make that 
happen.  From within vpython, the minium dot size is much larger than 
one pixel.  Otherwise, vpython is perfect for the job.

Thanks,

Laney Mills,
College of Charleston

Bruce Sherwood wrote:
> Thanks very much for the clear report. It turned out that the controls 
> module never had treated a nonzero minimum correctly. I sent a corrected 
> version of controls.py to Leau. I will of course update VPython to 
> incorporate the corrections.
> 
> Bruce Sherwood
> 
> leau2001 wrote:
> 
>> Hi all,
>>
>> I hve a problem with slider.
>> When i used one, the slider value init=0  and why not the mini i 
>> chose... ?
>>
>> Program :
>>
>> from visual.controls import *
>>
>> c = controls() # Create controls window
>>
>> def calcul (d,e):
>>      #result=int(d/e)
>>    print d, e
>>    print txt
>>
>> b = slider( pos=(-20,20), width=6, height=20, min=10000, max=100000, 
>> action=lambda: calcul(60000,txt)) # Create a slider in the controls 
>> window:
>>
>>
>> while 1:
>>          c.interact() # Check for mouse events and drive specified 
>> actions
>>      txt=b.value
>>    txt=int(txt)
>>    print txt
>>    #result=60000/txt
>>    #print result
>>
>> When you run this program like this, you see the slider value are on 
>> 0... and the when you touch the slider a little, slider value come's 
>> to 10000 as the min value.
>> But why this slider value is 0 at the beginning and not the min value ?
>>
>> thx for help
>>
>> lo
>>
>>
>>
>>
>> -------------------------------------------------------
>> This SF.net email is sponsored by: Splunk Inc. Do you grep through log 
>> files
>> for problems?  Stop!  Download the new AJAX search engine that makes
>> searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642
>> _______________________________________________
>> Visualpython-users mailing list
>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc. Do you grep through log 
> files
> for problems?  Stop!  Download the new AJAX search engine that makes
> searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users