[Plib-users] legend update

[stathis <st...@nt...>]

Hi everyone,

I am trying to setup sliders that will update their legend with the slider value. So as I 
move the slider along I can see it's value. I managed to do this with getStringValue and 
then setLegend. However on a floating point slider, it send back values with too many 
digits (.i.e 0.44555). I would like to display only a meanigful part of it for the user (say 
0.44). I set this to happen in a generic slider cb used by many sliders as follows:

void sliderCB( puObject *sli) {
   
   sli->setLegend(sli->getStringValue());
   .....
   ...
}

This works fine so far. I tried to reformat it like this (amongst other ways)

void sliderCB( puObject *sli) {

   float value;
   char sliText[4];

   slicb->getValue(&value);
   sprintf(sliText, "%.2f", value);
   cout << sliText << endl; // this output is *exactly* what I need

   slicb->setLegend(sliText); // non-sense chars on the legend :(
   ...
}

No matter what I do to try and reformat the string (with sprintf), prior to sending it on the 
legend, I get on my legend some strange characters. What am I possibly doing wrong?
Can somebody see my mistake above?

thanks in advance.

--st