assFormulaQuestionVariable Class Reference

Formula Question Variable. More...

Collaboration diagram for assFormulaQuestionVariable:

Public Member Functions
	__construct ($variable, $range_min, $range_max, $unit=null, $precision=0, $intprecision=1)
	assFormulaQuestionVariable constructor More...
	getRandomValue ()
	setRandomValue ()
	isIntPrecisionValid ($int_precision, $min_range, $max_range)
	setValue ($value)
	getValue ()
	getBaseValue ()
	setPrecision ($precision)
	getPrecision ()
	setVariable ($variable)
	getVariable ()
	setRangeMin ($range_min)
	getRangeMin ()
	setRangeMax ($range_max)
	getRangeMax ()
	setUnit ($unit)
	getUnit ()
	setIntprecision ($intprecision)
	getIntprecision ()
	setRangeMaxTxt ($range_max_txt)
	getRangeMaxTxt ()
	setRangeMinTxt ($range_min_txt)
	getRangeMinTxt ()

Private Attributes
	$variable
	$range_min
	$range_max
	$unit
	$value
	$precision
	$intprecision
	$range_min_txt
	$range_max_txt

Detailed Description

Formula Question Variable.

Author

Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m

Version

Id

class.assFormulaQuestionVariable.php 465 2009-06-29 08:27:36Z hschottm

Definition at line 10 of file class.assFormulaQuestionVariable.php.

Constructor & Destructor Documentation

__construct()

assFormulaQuestionVariable::__construct	(		$variable,
			$range_min,
			$range_max,
			$unit = null,
			$precision = 0,
			$intprecision = 1
	)

assFormulaQuestionVariable constructor

Parameters

string	$variable	Variable name
float	$range_min	Range minimum
float	$range_max	Range maximum
object	$unit	Unit
integer	$precision	Number of decimal places of the value
integer	$intprecision	Values with precision 0 must be divisible by this value @access public

Definition at line 33 of file class.assFormulaQuestionVariable.php.

    {
        $this->variable = $variable;
        $this->setRangeMin($range_min);
        $this->setRangeMax($range_max);
        $this->unit = $unit;
        $this->value = null;
        $this->precision = $precision;
        $this->intprecision = $intprecision;
        $this->setRangeMinTxt($range_min);
        $this->setRangeMaxTxt($range_max);
    }

References $intprecision, $precision, $range_max, $range_min, $unit, $variable, setRangeMax(), setRangeMaxTxt(), setRangeMin(), and setRangeMinTxt().

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Member Function Documentation

getBaseValue()

assFormulaQuestionVariable::getBaseValue

(

)

Definition at line 123 of file class.assFormulaQuestionVariable.php.

    {
        if (!is_object($this->getUnit())) {
            return $this->value;
        } else {
            include_once "./Services/Math/classes/class.ilMath.php";
            return ilMath::_mul($this->value, $this->getUnit()->getFactor());
        }
    }

References $value, ilMath\_mul(), and getUnit().

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getIntprecision()

assFormulaQuestionVariable::getIntprecision

(

)

Definition at line 199 of file class.assFormulaQuestionVariable.php.

    {
        return $this->intprecision;
    }

References $intprecision.

Referenced by getRandomValue().

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getPrecision()

assFormulaQuestionVariable::getPrecision

(

)

Definition at line 138 of file class.assFormulaQuestionVariable.php.

    {
        //@todo TEST
        
        return (int) $this->precision;
    }

References $precision.

Referenced by getRandomValue().

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getRandomValue()

assFormulaQuestionVariable::getRandomValue

(

)

Definition at line 46 of file class.assFormulaQuestionVariable.php.

    {
        
//              @todo check this
        if ($this->getPrecision() == 0) {
            if (!$this->isIntPrecisionValid(
                $this->getIntprecision(),
                $this->getRangeMin(),
                $this->getRangeMax()
            )) {
                global $DIC;
                $lng = $DIC['lng'];
                ilUtil::sendFailure($lng->txt('err_divider_too_big'));
            }
        }
        
        include_once "./Services/Math/classes/class.ilMath.php";
        $mul = ilMath::_pow(10, $this->getPrecision());
        $r1 = round(ilMath::_mul($this->getRangeMin(), $mul));
        $r2 = round(ilMath::_mul($this->getRangeMax(), $mul));
        $calcval = $this->getRangeMin() - 1;
        //test
 
        $roundedRangeMIN = round($this->getRangeMin(), $this->getPrecision());
        $roundedRangeMAX = round($this->getRangeMax(), $this->getPrecision());
        while ($calcval < $roundedRangeMIN || $calcval > $roundedRangeMAX) {
        
    
//              while($calcval < $this->getRangeMin() || $calcval > $this->getRangeMax())
            $rnd = mt_rand($r1, $r2);
            $calcval = ilMath::_div($rnd, $mul, $this->getPrecision());
            if (($this->getPrecision() == 0) && ($this->getIntprecision() != 0)) {
                if ($this->getIntprecision() > 0) {
                    $modulo = $calcval % $this->getIntprecision();
                    if ($modulo != 0) {
                        if ($modulo < ilMath::_div($this->getIntprecision(), 2)) {
                            $calcval = ilMath::_sub($calcval, $modulo, $this->getPrecision());
                        } else {
                            $calcval = ilMath::_add($calcval, ilMath::_sub($this->getIntprecision(), $modulo, $this->getPrecision()), $this->getPrecision());
                        }
                    }
                }
            }
        }
        return $calcval;
    }

References $DIC, $lng, ilMath\_add(), ilMath\_div(), ilMath\_mul(), ilMath\_pow(), ilMath\_sub(), getIntprecision(), getPrecision(), getRangeMax(), getRangeMin(), isIntPrecisionValid(), and ilUtil\sendFailure().

Referenced by setRandomValue().

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getRangeMax()

assFormulaQuestionVariable::getRangeMax

(

)

Definition at line 179 of file class.assFormulaQuestionVariable.php.

    {
        return (double) $this->range_max;
    }

References $range_max.

Referenced by getRandomValue().

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getRangeMaxTxt()

assFormulaQuestionVariable::getRangeMaxTxt

(

)

Definition at line 209 of file class.assFormulaQuestionVariable.php.

    {
        return $this->range_max_txt;
    }

References $range_max_txt.

getRangeMin()

assFormulaQuestionVariable::getRangeMin

(

)

Definition at line 165 of file class.assFormulaQuestionVariable.php.

    {
        return (double) $this->range_min;
    }

References $range_min.

Referenced by getRandomValue().

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getRangeMinTxt()

assFormulaQuestionVariable::getRangeMinTxt

(

)

Definition at line 219 of file class.assFormulaQuestionVariable.php.

    {
        return $this->range_min_txt;
    }

References $range_min_txt.

getUnit()

assFormulaQuestionVariable::getUnit

(

)

Definition at line 189 of file class.assFormulaQuestionVariable.php.

    {
        return $this->unit;
    }

References $unit.

Referenced by getBaseValue().

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getValue()

assFormulaQuestionVariable::getValue

(

)

Definition at line 118 of file class.assFormulaQuestionVariable.php.

    {
        return $this->value;
    }

References $value.

getVariable()

assFormulaQuestionVariable::getVariable

(

)

Definition at line 150 of file class.assFormulaQuestionVariable.php.

    {
        return $this->variable;
    }

References $variable.

isIntPrecisionValid()

assFormulaQuestionVariable::isIntPrecisionValid	(		$int_precision,
			$min_range,
			$max_range
	)

Definition at line 98 of file class.assFormulaQuestionVariable.php.

    {
        $min_abs = abs($min_range);
        $max_abs = abs($max_range);
        $bigger_abs = $max_abs > $min_abs ? $max_abs : $min_abs;
        if ($int_precision > $bigger_abs) {
            return false;
        }
        return true;
    }

Referenced by getRandomValue().

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setIntprecision()

assFormulaQuestionVariable::setIntprecision

(

$intprecision

)

Definition at line 194 of file class.assFormulaQuestionVariable.php.

    {
        $this->intprecision = $intprecision;
    }

References $intprecision.

setPrecision()

assFormulaQuestionVariable::setPrecision

(

$precision

)

Definition at line 133 of file class.assFormulaQuestionVariable.php.

    {
        $this->precision = $precision;
    }

References $precision.

setRandomValue()

assFormulaQuestionVariable::setRandomValue

(

)

Definition at line 93 of file class.assFormulaQuestionVariable.php.

    {
        $this->setValue($this->getRandomValue());
    }

References getRandomValue(), and setValue().

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setRangeMax()

assFormulaQuestionVariable::setRangeMax

(

$range_max

)

Definition at line 170 of file class.assFormulaQuestionVariable.php.

    {
        include_once "./Services/Math/classes/class.EvalMath.php";
        $math = new EvalMath();
        $math->suppress_errors = true;
        $result = $math->evaluate($range_max);
        $this->range_max = $result;
    }

References $range_max, and $result.

Referenced by __construct().

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setRangeMaxTxt()

assFormulaQuestionVariable::setRangeMaxTxt

(

$range_max_txt

)

Definition at line 204 of file class.assFormulaQuestionVariable.php.

    {
        $this->range_max_txt = $range_max_txt;
    }

References $range_max_txt.

Referenced by __construct().

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setRangeMin()

assFormulaQuestionVariable::setRangeMin

(

$range_min

)

Definition at line 155 of file class.assFormulaQuestionVariable.php.

    {
        include_once "./Services/Math/classes/class.EvalMath.php";
        $math = new EvalMath();
        $math->suppress_errors = true;
        $result = $math->evaluate($range_min);
        
        $this->range_min = $result;
    }

References $range_min, and $result.

Referenced by __construct().

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setRangeMinTxt()

assFormulaQuestionVariable::setRangeMinTxt

(

$range_min_txt

)

Definition at line 214 of file class.assFormulaQuestionVariable.php.

    {
        $this->range_min_txt = $range_min_txt;
    }

References $range_min_txt.

Referenced by __construct().

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setUnit()

assFormulaQuestionVariable::setUnit

(

$unit

)

Definition at line 184 of file class.assFormulaQuestionVariable.php.

    {
        $this->unit = $unit;
    }

References $unit.

setValue()

assFormulaQuestionVariable::setValue

(

$value

)

Definition at line 113 of file class.assFormulaQuestionVariable.php.

    {
        $this->value = $value;
    }

References $value.

Referenced by setRandomValue().

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setVariable()

assFormulaQuestionVariable::setVariable

(

$variable

)

Definition at line 145 of file class.assFormulaQuestionVariable.php.

    {
        $this->variable = $variable;
    }

References $variable.

Field Documentation

$intprecision

assFormulaQuestionVariable::$intprecision

private

Definition at line 18 of file class.assFormulaQuestionVariable.php.

Referenced by __construct(), getIntprecision(), and setIntprecision().

$precision

assFormulaQuestionVariable::$precision

private

Definition at line 17 of file class.assFormulaQuestionVariable.php.

Referenced by __construct(), getPrecision(), and setPrecision().

$range_max

assFormulaQuestionVariable::$range_max

private

Definition at line 14 of file class.assFormulaQuestionVariable.php.

Referenced by __construct(), getRangeMax(), and setRangeMax().

$range_max_txt

assFormulaQuestionVariable::$range_max_txt

private

Definition at line 20 of file class.assFormulaQuestionVariable.php.

Referenced by getRangeMaxTxt(), and setRangeMaxTxt().

$range_min

assFormulaQuestionVariable::$range_min

private

Definition at line 13 of file class.assFormulaQuestionVariable.php.

Referenced by __construct(), getRangeMin(), and setRangeMin().

$range_min_txt

assFormulaQuestionVariable::$range_min_txt

private

Definition at line 19 of file class.assFormulaQuestionVariable.php.

Referenced by getRangeMinTxt(), and setRangeMinTxt().

$unit

assFormulaQuestionVariable::$unit

private

Definition at line 15 of file class.assFormulaQuestionVariable.php.

Referenced by __construct(), getUnit(), and setUnit().

$value

assFormulaQuestionVariable::$value

private

Definition at line 16 of file class.assFormulaQuestionVariable.php.

Referenced by getBaseValue(), getValue(), and setValue().

$variable

assFormulaQuestionVariable::$variable

private

Definition at line 12 of file class.assFormulaQuestionVariable.php.

Referenced by __construct(), getVariable(), and setVariable().

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The documentation for this class was generated from the following file:

• Modules/TestQuestionPool/classes/class.assFormulaQuestionVariable.php