---
name: "SWF::FilterMatrix"
section: "3pm"
platform: "linux"
package: "libswf-perl"
version: "1:0.4.4-1.1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/SWF::FilterMatrix"
---

# SWF::FilterMatrix(3pm)

SWF FilterMatrix class

## NAME

SWF::FilterMatrix - SWF FilterMatrix  class

## SYNOPSIS

```
        use SWF::FilterMatrix;
        $valueref     = [ 0.5, 0.4, 0.3, 0, 0,
                          0.5, 0.4, 0.3, 0, 0,
                          0.5, 0.4, 0.3, 0, 0,
                          0, 0, 0, 1, 0 ];
        $filtermatrix = new SWF::FilterMatrix( 5, 4, $valueref );
        $filter    = SWF::Filter::newColorMatrixFilter( $filtermatrix );
```

## DESCRIPTION

SWF::FilterMatrix is a helper class useful for construction  of some SWF::Filter objects: ColorMatrix filter and Convolution filter.

## METHODS

- new SWF::FilterMatrix($cols, $rows, $valueref)

  The only method is a constructor for creation of  a FilterMatrix object. The object is controlled by the matrix data dimensions (cols \* rows) and the  data values: a reference to an array of float values. Note: constructing ColorMatrixFilter needs a 5\*4 matrix.

## AUTHOR

```
        developers of
        ming.sourceforge.net
```

## SEE ALSO

SWF, SWF::Filter, SWF::Blur, SWF::Shadow