Formula Question Variable. More...

Collaboration diagram for assFormulaQuestionVariable:

Public Member Functions
	__construct (private string $variable, private string $range_min_txt, private string $range_max_txt, private ?assFormulaQuestionUnit $unit=null, private int $precision=0, private int $intprecision=1)

	getRandomValue ()

	setRandomValue ()

	isIntPrecisionValid (?int $int_precision, float $min_range, float $max_range)

	setValue ($value)

	getValue ()

	getBaseValue ()

	setPrecision (int $precision)

	getPrecision ()

	setVariable ($variable)

	getVariable ()

	setRangeMin (string $range_min)

	getRangeMin ()

	setRangeMax (string $range_max)

	getRangeMax ()

	setUnit (?assFormulaQuestionUnit $unit)

	getUnit ()

	setIntprecision ($intprecision)

	getIntprecision ()

	setRangeMaxTxt (string $range_max_txt)

	getRangeMaxTxt ()

	setRangeMinTxt (string $range_min_txt)

	getRangeMinTxt ()

Private Attributes
	$value = null

float	$range_min

float	$range_max

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 27 of file class.assFormulaQuestionVariable.php.

Constructor & Destructor Documentation

◆ __construct()

assFormulaQuestionVariable::__construct	(	private string	$variable,
		private string	$range_min_txt,
		private string	$range_max_txt,
		private ?assFormulaQuestionUnit	$unit = `null`,
		private int	$precision = `0`,
		private int	$intprecision = `1`
	)

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

      {
        $this->setRangeMin($range_min_txt);
        $this->setRangeMax($range_max_txt);
    }

References setRangeMax(), and setRangeMin().

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Member Function Documentation

◆ getBaseValue()

assFormulaQuestionVariable::getBaseValue ( )

Definition at line 108 of file class.assFormulaQuestionVariable.php.

    {
        if (!is_object($this->getUnit())) {
            return $this->value;
        } else {
            return ilMath::_mul($this->value, $this->getUnit()->getFactor());
        }
    }

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

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◆ getIntprecision()

assFormulaQuestionVariable::getIntprecision ( )

Definition at line 176 of file class.assFormulaQuestionVariable.php.

                                     : int
    {
        return $this->intprecision;
    }

Referenced by assFormulaQuestion\buildVariablesForLog(), and getRandomValue().

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◆ getPrecision()

assFormulaQuestionVariable::getPrecision ( )

Definition at line 122 of file class.assFormulaQuestionVariable.php.

                                  : int
    {
        return $this->precision;
    }

Referenced by assFormulaQuestion\buildVariablesForLog(), and getRandomValue().

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◆ getRandomValue()

assFormulaQuestionVariable::getRandomValue ( )

Definition at line 45 of file class.assFormulaQuestionVariable.php.

                                    : float
    {
        if (
            $this->getPrecision() === 0
            && !$this->isIntPrecisionValid(
                $this->getIntprecision(),
                $this->getRangeMin(),
                $this->getRangeMax()
            )
        ) {
            global $DIC;
            $DIC['tpl']->setOnScreenMessage('failure', $DIC['lng']->txt('err_divider_too_big'));
            return 0.0;
        }
 
        $mul = ilMath::_pow(10, $this->getPrecision());
        $r1 = round((float) ilMath::_mul($this->getRangeMin(), $mul));
        $r2 = round((float) ilMath::_mul($this->getRangeMax(), $mul));
        $calc_val = $this->getRangeMin() - 1.0;
 
        $rounded_range_min = round($this->getRangeMin(), $this->getPrecision());
        $rounded_range_max = round($this->getRangeMax(), $this->getPrecision());
        while ($calc_val < $rounded_range_min || $calc_val > $rounded_range_max) {
            $rnd = random_int((int) $r1, (int) $r2);
            $calc_val = (float) ilMath::_div($rnd, $mul, $this->getPrecision());
 
            if ($this->getPrecision() === 0 && $this->getIntprecision() > 0) {
                $modulo = $calc_val % $this->getIntprecision();
                if ($modulo !== 0) {
                    $calc_val = $modulo < ilMath::_div($this->getIntprecision(), 2)
                        ? (float) ilMath::_sub($calc_val, $modulo, $this->getPrecision())
                        : (float) ilMath::_add($calc_val, ilMath::_sub($this->getIntprecision(), $modulo, $this->getPrecision()), $this->getPrecision());
                }
            }
        }
 
        return $calc_val;
    }

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

Referenced by setRandomValue().

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◆ getRangeMax()

assFormulaQuestionVariable::getRangeMax ( )

Definition at line 156 of file class.assFormulaQuestionVariable.php.

                                 : float
    {
        return $this->range_max;
    }

References $range_max.

Referenced by getRandomValue().

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◆ getRangeMaxTxt()

assFormulaQuestionVariable::getRangeMaxTxt ( )

Definition at line 186 of file class.assFormulaQuestionVariable.php.

                                    : string
    {
        return $this->range_max_txt;
    }

Referenced by assFormulaQuestion\buildVariablesForLog().

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◆ getRangeMin()

assFormulaQuestionVariable::getRangeMin ( )

Definition at line 144 of file class.assFormulaQuestionVariable.php.

                                 : float
    {
        return $this->range_min;
    }

References $range_min.

Referenced by getRandomValue().

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◆ getRangeMinTxt()

assFormulaQuestionVariable::getRangeMinTxt ( )

Definition at line 196 of file class.assFormulaQuestionVariable.php.

                                    : string
    {
        return $this->range_min_txt;
    }

Referenced by assFormulaQuestion\buildVariablesForLog().

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◆ getUnit()

assFormulaQuestionVariable::getUnit ( )

Definition at line 166 of file class.assFormulaQuestionVariable.php.

                             : ?assFormulaQuestionUnit
    {
        return $this->unit;
    }

Referenced by assFormulaQuestion\buildVariablesForLog(), and getBaseValue().

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◆ getValue()

assFormulaQuestionVariable::getValue ( )

Definition at line 103 of file class.assFormulaQuestionVariable.php.

    {
        return $this->value;
    }

References $value.

◆ getVariable()

assFormulaQuestionVariable::getVariable ( )

Definition at line 132 of file class.assFormulaQuestionVariable.php.

                                 : string
    {
        return $this->variable;
    }

Referenced by assFormulaQuestion\addVariable(), and assFormulaQuestion\buildVariablesForLog().

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◆ isIntPrecisionValid()

assFormulaQuestionVariable::isIntPrecisionValid	(	?int	$int_precision,
		float	$min_range,
		float	$max_range
	)

Definition at line 89 of file class.assFormulaQuestionVariable.php.

                                                                                                : bool
    {
        return $int_precision !== null && $int_precision <= max(abs($max_range), abs($min_range));
    }

Referenced by getRandomValue().

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◆ setIntprecision()

assFormulaQuestionVariable::setIntprecision ( $intprecision )

Definition at line 171 of file class.assFormulaQuestionVariable.php.

                                                  : void
    {
        $this->intprecision = $intprecision;
    }

◆ setPrecision()

assFormulaQuestionVariable::setPrecision ( int $precision )

Definition at line 117 of file class.assFormulaQuestionVariable.php.

                                                : void
    {
        $this->precision = $precision;
    }

◆ setRandomValue()

assFormulaQuestionVariable::setRandomValue ( )

Definition at line 84 of file class.assFormulaQuestionVariable.php.

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

References getRandomValue(), and setValue().

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◆ setRangeMax()

assFormulaQuestionVariable::setRangeMax ( string $range_max )

Definition at line 149 of file class.assFormulaQuestionVariable.php.

                                                  : void
    {
        $math = new EvalMath();
        $math->suppress_errors = true;
        $this->range_max = (float) $math->evaluate($range_max);
    }

References $range_max.

Referenced by __construct().

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◆ setRangeMaxTxt()

assFormulaQuestionVariable::setRangeMaxTxt ( string $range_max_txt )

Definition at line 181 of file class.assFormulaQuestionVariable.php.

                                                         : void
    {
        $this->range_max_txt = $range_max_txt;
    }

◆ setRangeMin()

assFormulaQuestionVariable::setRangeMin ( string $range_min )

Definition at line 137 of file class.assFormulaQuestionVariable.php.

                                                  : void
    {
        $math = new EvalMath();
        $math->suppress_errors = true;
        $this->range_min = (float) $math->evaluate($range_min);
    }

References $range_min.

Referenced by __construct().

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◆ setRangeMinTxt()

assFormulaQuestionVariable::setRangeMinTxt ( string $range_min_txt )

Definition at line 191 of file class.assFormulaQuestionVariable.php.

                                                         : void
    {
        $this->range_min_txt = $range_min_txt;
    }

◆ setUnit()

assFormulaQuestionVariable::setUnit ( ?assFormulaQuestionUnit $unit )

Definition at line 161 of file class.assFormulaQuestionVariable.php.

                                                          : void
    {
        $this->unit = $unit;
    }

◆ setValue()

assFormulaQuestionVariable::setValue ( $value )

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

                                    : void
    {
        $this->value = $value;
    }

References $value.

Referenced by setRandomValue().

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◆ setVariable()

assFormulaQuestionVariable::setVariable ( $variable )

Definition at line 127 of file class.assFormulaQuestionVariable.php.

                                          : void
    {
        $this->variable = $variable;
    }

Field Documentation

◆ $range_max

float assFormulaQuestionVariable::$range_max

private

Definition at line 31 of file class.assFormulaQuestionVariable.php.

Referenced by getRangeMax(), and setRangeMax().

◆ $range_min

float assFormulaQuestionVariable::$range_min

private

Definition at line 30 of file class.assFormulaQuestionVariable.php.

Referenced by getRangeMin(), and setRangeMin().

◆ $value

assFormulaQuestionVariable::$value = null

private

Definition at line 29 of file class.assFormulaQuestionVariable.php.

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

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

components/ILIAS/TestQuestionPool/classes/class.assFormulaQuestionVariable.php

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ getBaseValue()

◆ getIntprecision()

◆ getPrecision()

◆ getRandomValue()

◆ getRangeMax()

◆ getRangeMaxTxt()

◆ getRangeMin()

◆ getRangeMinTxt()

◆ getUnit()

◆ getValue()

◆ getVariable()

◆ isIntPrecisionValid()

◆ setIntprecision()

◆ setPrecision()

◆ setRandomValue()

◆ setRangeMax()

◆ setRangeMaxTxt()

◆ setRangeMin()

◆ setRangeMinTxt()

◆ setUnit()

◆ setValue()

◆ setVariable()

Field Documentation

◆ $range_max

◆ $range_min

◆ $value