Function nfCoreScalar

examples/js/processing.js:4908–4956

(value, plus, minus, leftDigits, rightDigits, group)

    };

    function nfCoreScalar(value, plus, minus, leftDigits, rightDigits, group) {
      var sign = (value < 0) ? minus : plus;
      var autoDetectDecimals = rightDigits === 0;
      var rightDigitsOfDefault = (rightDigits === undef || rightDigits < 0) ? 0 : rightDigits;


      // Change the way the number is 'floored' based on whether it is odd or even.
      if (rightDigits < 0 && Math.floor(value) % 2 === 1) {
        // Make sure 1.49 rounds to 1, but 1.5 rounds to 2.
        if ((value - Math.floor(value)) >= 0.5) {
          value += 1;
        }
      }


      var absValue = Math.abs(value);
      if(autoDetectDecimals) {
        rightDigitsOfDefault = 1;
        absValue *= 10;
        while(Math.abs(Math.round(absValue) - absValue) > 1e-6 && rightDigitsOfDefault < 7) {
          ++rightDigitsOfDefault;
          absValue *= 10;
        }
      } else if (rightDigitsOfDefault !== 0) {
        absValue *= Math.pow(10, rightDigitsOfDefault);
      }

      var number = Math.round(absValue);
      var buffer = "";
      var totalDigits = leftDigits + rightDigitsOfDefault;
      while (totalDigits > 0 || number > 0) {
        totalDigits--;
        buffer = "" + (number % 10) + buffer;
        number = Math.floor(number / 10);
      }
      if (group !== undef) {
        var i = buffer.length - 3 - rightDigitsOfDefault;
        while(i > 0) {
          buffer = buffer.substring(0,i) + group + buffer.substring(i);
          i-=3;
        }
      }
      if (rightDigitsOfDefault > 0) {
        return sign + buffer.substring(0, buffer.length - rightDigitsOfDefault) +
               "." + buffer.substring(buffer.length - rightDigitsOfDefault, buffer.length);
      } else {
         return sign + buffer;
      }
    }

    function nfCore(value, plus, minus, leftDigits, rightDigits, group) {
      if (value instanceof Array) {