This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V. 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

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V.

ILIAS is licensed with the GPL-3.0, see https://www.gnu.org/licenses/gpl-3.0.en.html You should have received a copy of said license along with the source code, too.

If this is not the case or you just want to try ILIAS, you'll find us at: https://www.ilias.de https://github.com/ILIAS-eLearning 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 24 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 47 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 138 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 214 of file class.assFormulaQuestionVariable.php.

                                     : int
    {
        return $this->intprecision;
    }

References $intprecision.

Referenced by getRandomValue().

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◆ getPrecision()

assFormulaQuestionVariable::getPrecision ( )

Definition at line 153 of file class.assFormulaQuestionVariable.php.

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

References $precision.

Referenced by getRandomValue().

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◆ getRandomValue()

assFormulaQuestionVariable::getRandomValue ( )

Definition at line 60 of file class.assFormulaQuestionVariable.php.

    {
        if ($this->getPrecision() == 0) {
            if (!$this->isIntPrecisionValid(
                $this->getIntprecision(),
                $this->getRangeMin(),
                $this->getRangeMax()
            )) {
                global $DIC;
                $lng = $DIC['lng'];
                $DIC->ui()->mainTemplate()->setOnScreenMessage(
                    "failure",
                    $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(), and isIntPrecisionValid().

Referenced by setRandomValue().

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◆ getRangeMax()

assFormulaQuestionVariable::getRangeMax ( )

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

                                 : float
    {
        return (float) $this->range_max;
    }

References $range_max.

Referenced by getRandomValue().

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◆ getRangeMaxTxt()

assFormulaQuestionVariable::getRangeMaxTxt ( )

Definition at line 224 of file class.assFormulaQuestionVariable.php.

    {
        return $this->range_max_txt;
    }

References $range_max_txt.

◆ getRangeMin()

assFormulaQuestionVariable::getRangeMin ( )

Definition at line 180 of file class.assFormulaQuestionVariable.php.

                                 : float
    {
        return (float) $this->range_min;
    }

References $range_min.

Referenced by getRandomValue().

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◆ getRangeMinTxt()

assFormulaQuestionVariable::getRangeMinTxt ( )

Definition at line 234 of file class.assFormulaQuestionVariable.php.

    {
        return $this->range_min_txt;
    }

References $range_min_txt.

◆ getUnit()

assFormulaQuestionVariable::getUnit ( )

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

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

References $unit.

Referenced by getBaseValue().

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◆ getValue()

assFormulaQuestionVariable::getValue ( )

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

    {
        return $this->value;
    }

References $value.

◆ getVariable()

assFormulaQuestionVariable::getVariable ( )

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

                                 : string
    {
        return $this->variable;
    }

References $variable.

◆ isIntPrecisionValid()

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

Definition at line 113 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 209 of file class.assFormulaQuestionVariable.php.

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

References $intprecision.

◆ setPrecision()

assFormulaQuestionVariable::setPrecision ( $precision )

Definition at line 148 of file class.assFormulaQuestionVariable.php.

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

References $precision.

◆ setRandomValue()

assFormulaQuestionVariable::setRandomValue ( )

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

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

References getRandomValue(), and setValue().

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◆ setRangeMax()

assFormulaQuestionVariable::setRangeMax ( $range_max )

Definition at line 185 of file class.assFormulaQuestionVariable.php.

                                           : void
    {
        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.

Referenced by __construct().

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◆ setRangeMaxTxt()

assFormulaQuestionVariable::setRangeMaxTxt ( $range_max_txt )

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

                                                  : void
    {
        $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 170 of file class.assFormulaQuestionVariable.php.

                                           : void
    {
        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.

Referenced by __construct().

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◆ setRangeMinTxt()

assFormulaQuestionVariable::setRangeMinTxt ( $range_min_txt )

Definition at line 229 of file class.assFormulaQuestionVariable.php.

                                                  : void
    {
        $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 199 of file class.assFormulaQuestionVariable.php.

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

References $unit.

◆ setValue()

assFormulaQuestionVariable::setValue ( $value )

Definition at line 128 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 160 of file class.assFormulaQuestionVariable.php.

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

References $variable.

Field Documentation

◆ $intprecision

assFormulaQuestionVariable::$intprecision

private

Definition at line 32 of file class.assFormulaQuestionVariable.php.

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

◆ $precision

assFormulaQuestionVariable::$precision

private

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

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

◆ $range_max

assFormulaQuestionVariable::$range_max

private

Definition at line 28 of file class.assFormulaQuestionVariable.php.

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

◆ $range_max_txt

assFormulaQuestionVariable::$range_max_txt

private

Definition at line 34 of file class.assFormulaQuestionVariable.php.

Referenced by getRangeMaxTxt(), and setRangeMaxTxt().

◆ $range_min

assFormulaQuestionVariable::$range_min

private

Definition at line 27 of file class.assFormulaQuestionVariable.php.

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

◆ $range_min_txt

assFormulaQuestionVariable::$range_min_txt

private

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

Referenced by getRangeMinTxt(), and setRangeMinTxt().

◆ $unit

assFormulaQuestionVariable::$unit

private

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

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

◆ $value

assFormulaQuestionVariable::$value

private

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

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

◆ $variable

assFormulaQuestionVariable::$variable

private

Definition at line 26 of file class.assFormulaQuestionVariable.php.

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

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

Modules/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

◆ $intprecision

◆ $precision

◆ $range_max

◆ $range_max_txt

◆ $range_min

◆ $range_min_txt

◆ $unit

◆ $value

◆ $variable