HalftoneType1
extends PdfObject
in package
Dictionary-based halftone (HalftoneType 1) — ISO 32000-2 §10.6.4.
Defines a single halftone screen with frequency, angle, and spot function.
Attributes
- #[RequiresPdfVersion]
- \Phpdftk\Pdf\Core\PdfVersion::V1_3
Table of Contents
Constants
- PDF_TYPE = 'Halftone'
Properties
- $accurateScreens : bool|null
- $angle : float|null
- $frequency : float|null
- $generationNumber : int
- $objectNumber : int
- $spotFunction : Serializable|null
- $transferFunction : Serializable|null
Methods
- toIndirectObject() : string
- Wrap the object in an indirect object structure: X Y obj ... endobj
- toPdf() : string
- Serialize the object's dictionary/value to PDF syntax.
Constants
PDF_TYPE
public
mixed
PDF_TYPE
= 'Halftone'
Properties
$accurateScreens
public
bool|null
$accurateScreens
= null
$angle
public
float|null
$angle
= null
$frequency
public
float|null
$frequency
= null
$generationNumber
public
int
$generationNumber
= 0
$objectNumber
public
int
$objectNumber
= 0
$spotFunction
public
Serializable|null
$spotFunction
= null
$transferFunction
public
Serializable|null
$transferFunction
= null
Methods
toIndirectObject()
Wrap the object in an indirect object structure: X Y obj ... endobj
public
toIndirectObject() : string
Return values
stringtoPdf()
Serialize the object's dictionary/value to PDF syntax.
public
toPdf() : string