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  • Can i get a little help?

    I have a audio incorporate on my apps. I know the max volume of Audio is 255 and i do this

    nVol = nVolume / 2.55;

    Label.SetText("Vol", nVol.."%");


    The problem is the result below 100 is 99.12242543645%


    how can i make it fixed in number?

    Example: 100-99-98-97 >>>>>

  • #2
    Is basic math issue, here. When working with 0-255 volume-range, percentage will never be whole integer. Always 1+ decimal places. So, we can employ Math.Round or Floating-Point-Integer Pattern to round up/down to closest whole number. So, some options we can do:
    Code:
    -- #########################################################################
    -- NOTES:
    -- Whereby nVol = variable for for retrieved volume-number (eg. 0-255)
    -- Whereby pVol = variable for for volume-number expressed as percentage(%)
    -- #########################################################################
    
    -- Option 1: Use Math.Round command (rounds up/down to closest whole number, if set for '0' decimal places)
    nVol = 253;
    pVol = (nVol / 255) * 100;
    pVol_rounded = Math.Round(pVol , 0);
    Label.SetText("Vol", pVol_rounded .. "%");
    
    
    -- Option 2: Use Floating-Point-Integer Pattern (rounds up/down to closest whole number, if set for '0' decimal places)
    nVol = 253;
    pVol = (nVol / 255) * 100;
    pVol_rounded = string.format("%.0f", pVol);
    Label.SetText("Vol", pVol_rounded .. "%");
    
    
    -- Option 3: Integrate EITHER method into single-argument function
    nVol = 253; 
    pVol = (nVol / 255) * 100;
    function pVol_rounded (pVol)
        return Math.Round(pVol, 0);
    end
    Label.SetText("Vol", pVol_rounded (pVol) .. "%");
    
    -- or
    
    nVol = 253; 
    pVol = (nVol / 255) * 100;
    function pVol_rounded (pVol)
        return string.format("%.0f", pVol);
    end
    Label.SetText("Vol", pVol_rounded (pVol) .. "%");
    There are other options, too.
    Google is your bud with this one, bud!.
    .
    PS.
    Noticed another thread where you were working on audio-project, last year. Not sure whether this request is at all related. But in any event, attached are some APZ examples demonstrating audio-volume display & tracking. Might be of some interest / relevance. (Wrote these quite a few years back - under different incarnation - but they're all up-to-date now - for v8.5 / Lua5.1).
    Attached Files

    Comment


    • #3
      ... And so, using first option Math.Round() on a timer might look something like this:
      Attached Files

      Comment


      • #4
        Thanks Bio.. now i got it..
        About my request last year yes, but its focusing on 100% of the volume not the 255..

        Again.. many thanks..

        Comment

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