Matrix\Operators\DirectSum Class Reference

Inheritance diagram for Matrix\Operators\DirectSum:

Collaboration diagram for Matrix\Operators\DirectSum:

Public Member Functions
	execute ($value)
	Execute the addition. More...
Public Member Functions inherited from Matrix\Operators\Operator
	__construct (Matrix $matrix)
	Create an new handler object for the operation. More...
	result ()
	Return the result of the operation. More...

Private Member Functions
	directSumMatrix ($value)
	Execute the direct sum for a matrix. More...

Additional Inherited Members
Protected Member Functions inherited from Matrix\Operators\Operator
	validateMatchingDimensions (Matrix $matrix)
	Compare the dimensions of the matrices being operated on to see if they are valid for addition/subtraction. More...
	validateReflectingDimensions (Matrix $matrix)
	Compare the dimensions of the matrices being operated on to see if they are valid for multiplication/division. More...
Protected Attributes inherited from Matrix\Operators\Operator
	$matrix
	$rows
	Number of rows in the matrix. More...
	$columns
	Number of columns in the matrix. More...

Detailed Description

Definition at line 8 of file DirectSum.php.

Member Function Documentation

directSumMatrix()

Matrix\Operators\DirectSum::directSumMatrix (   $value )

private

Execute the direct sum for a matrix.

Parameters

Matrix

$value

The numeric value to concatenate/direct sum with the current base value

Returns

$this The operation object, allowing multiple additions to be chained

Definition at line 36 of file DirectSum.php.

References $row, and Matrix\Operators\Operator\$rows.

Referenced by Matrix\Operators\DirectSum\execute().

                                            : Operator
    {
        $originalColumnCount = count($this->matrix[0]);
        $originalRowCount = count($this->matrix);
        $valColumnCount = $value->columns;
        $valRowCount = $value->rows;
        $value = $value->toArray();

        for ($row = 0; $row < $this->rows; ++$row) {
            $this->matrix[$row] = array_merge($this->matrix[$row], array_fill(0, $valColumnCount, 0));
        }

        $this->matrix = array_merge(
            $this->matrix,
            array_fill(0, $valRowCount, array_fill(0, $originalColumnCount, 0))
        );

        for ($row = $originalRowCount; $row < $originalRowCount + $valRowCount; ++$row) {
            array_splice(
                $this->matrix[$row],
                $originalColumnCount,
                $valColumnCount,
                $value[$row - $originalRowCount]
            );
        }

        return $this;
    }

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execute()

Matrix\Operators\DirectSum::execute

(

$value

)

Execute the addition.

Parameters

mixed

$value

The matrix or numeric value to add to the current base value

Returns

$this The operation object, allowing multiple additions to be chained

Exceptions

Exception

If the provided argument is not appropriate for the operation

Definition at line 17 of file DirectSum.php.

References Matrix\Operators\DirectSum\directSumMatrix().

                                   : Operator
    {
        if (is_array($value)) {
            $value = new Matrix($value);
        }

        if ($value instanceof Matrix) {
            return $this->directSumMatrix($value);
        }

        throw new Exception('Invalid argument for addition');
    }

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

• libs/composer/vendor/markbaker/matrix/classes/src/Operators/DirectSum.php