API Documentation

Zend/Pdf/Resource/GraphicsState.php

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Zend Framework

LICENSE

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Category
Zend  
Copyright
Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  
Package
Zend_Pdf  
Version
$Id: Image.php 20096 2010-01-06 02:05:09Z bkarwin $  

\Zend_Pdf_Resource_GraphicsState

Package: Zend\Pdf

Graphics State.

While some parameters in the graphics state can be set with individual operators, as shown in Table 4.7, others cannot. The latter can only be set with the generic graphics state operator gs (PDF 1.2).

Parent(s)
\Zend_Pdf_Resource
Copyright
Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  

Methods

methodpublic__construct( \Zend_Pdf_Element_Object $extGStateObject = null ) : void

Object constructor.

Parameters
Name Type Description
$extGStateObject \Zend_Pdf_Element_Object
Throws
Exception Description
\Zend_Pdf_Exception
methodpublicsetAlpha( float $alpha, string $mode = 'Normal' ) : \Zend_Pdf_Canvas_Interface

Set the transparancy

$alpha == 0 - transparent $alpha == 1 - opaque

Transparency modes, supported by PDF: Normal (default), Multiply, Screen, Overlay, Darken, Lighten, ColorDodge, ColorBurn, HardLight, SoftLight, Difference, Exclusion

Parameters
Name Type Description
$alpha float
$mode string
Returns
Type Description
\Zend_Pdf_Canvas_Interface
Throws
Exception Description
\Zend_Pdf_Exception
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