PDShading (veraPDF PDF Box PDF/A Validation Model Implementation 1.16.1 API)

java.lang.Object
- org.apache.pdfbox.pdmodel.graphics.shading.PDShading

All Implemented Interfaces:

COSObjectable, PDInheritableResource

Direct Known Subclasses:

PDShadingType1, PDShadingType2, PDShadingType4, PDShadingType5
```
public abstract class PDShading
extends Object
implements COSObjectable, PDInheritableResource
```
A Shading Resource.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`SHADING_TYPE1` shading type 1 = function based shading.
`static int`	`SHADING_TYPE2` shading type 2 = axial shading.
`static int`	`SHADING_TYPE3` shading type 3 = radial shading.
`static int`	`SHADING_TYPE4` shading type 4 = Free-Form Gouraud-Shaded Triangle Meshes.
`static int`	`SHADING_TYPE5` shading type 5 = Lattice-Form Gouraud-Shaded Triangle Meshes.
`static int`	`SHADING_TYPE6` shading type 6 = Coons Patch Meshes.
`static int`	`SHADING_TYPE7` shading type 7 = Tensor-Product Patch Meshes.

Constructor Summary

Constructors
Constructor and Description

PDShading()
Default constructor.

PDShading(COSDictionary shadingDictionary)
Constructor using the given shading dictionary.

Constructors
Constructor and Description
`PDShading()` Default constructor.
`PDShading(COSDictionary shadingDictionary)` Constructor using the given shading dictionary.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`static PDShading`	`create(COSDictionary resourceDictionary)` Create the correct PD Model shading based on the COS base shading.
`float[]`	`evalFunction(float inputValue)` Convert the input value using the functions of the shading dictionary.
`float[]`	`evalFunction(float[] input)` Convert the input values using the functions of the shading dictionary.
`boolean`	`getAntiAlias()` This will return the AntiAlias value.
`COSArray`	`getBackground()` This will return the background.
`PDRectangle`	`getBBox()` An array of four numbers in the form coordinate system (see below), giving the coordinates of the left, bottom, right, and top edges, respectively, of the shading's bounding box.
`PDColorSpace`	`getColorSpace()` This will get the color space or null if none exists.
`COSDictionary`	`getCOSObject()` This will get the underlying dictionary.
`PDFunction`	`getFunction()` This will return the function used to convert the color values.
`abstract int`	`getShadingType()` This will return the shading type.
`String`	`getType()` This will return the type.
`boolean`	`isInherited()`
`void`	`setAntiAlias(boolean antiAlias)` This will set the AntiAlias value.
`void`	`setBackground(COSArray newBackground)` This will set the background.
`void`	`setBBox(PDRectangle newBBox)` This will set the BBox (bounding box) for this Shading.
`void`	`setColorSpace(PDColorSpace colorSpace)` This will set the color space for the shading.
`void`	`setFunction(COSArray newFunctions)` This will set the functions COSArray for the color conversion.
`void`	`setFunction(PDFunction newFunction)` This will set the function for the color conversion.
`void`	`setInherited(boolean inherited)`
`void`	`setShadingType(int shadingType)` This will set the shading type.
`abstract Paint`	`toPaint(Matrix matrix)` Returns an AWT paint which corresponds to this shading

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SHADING_TYPE1
```
public static final int SHADING_TYPE1
```
    shading type 1 = function based shading.
    
    See Also:
    
    Constant Field Values
  - SHADING_TYPE2
```
public static final int SHADING_TYPE2
```
    shading type 2 = axial shading.
    
    See Also:
    
    Constant Field Values
  - SHADING_TYPE3
```
public static final int SHADING_TYPE3
```
    shading type 3 = radial shading.
    
    See Also:
    
    Constant Field Values
  - SHADING_TYPE4
```
public static final int SHADING_TYPE4
```
    shading type 4 = Free-Form Gouraud-Shaded Triangle Meshes.
    
    See Also:
    
    Constant Field Values
  - SHADING_TYPE5
```
public static final int SHADING_TYPE5
```
    shading type 5 = Lattice-Form Gouraud-Shaded Triangle Meshes.
    
    See Also:
    
    Constant Field Values
  - SHADING_TYPE6
```
public static final int SHADING_TYPE6
```
    shading type 6 = Coons Patch Meshes.
    
    See Also:
    
    Constant Field Values
  - SHADING_TYPE7
```
public static final int SHADING_TYPE7
```
    shading type 7 = Tensor-Product Patch Meshes.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - PDShading
```
public PDShading()
```
    Default constructor.
  - PDShading
```
public PDShading(COSDictionary shadingDictionary)
```
    Constructor using the given shading dictionary.
    
    Parameters:
    
    shadingDictionary - the dictionary for this shading
- Method Detail
  - getCOSObject
```
public COSDictionary getCOSObject()
```
    This will get the underlying dictionary.
    
    Specified by:
    
    getCOSObject in interface COSObjectable
    
    Returns:
    
    the dictionary for this shading.
  - getType
```
public String getType()
```
    This will return the type.
    
    Returns:
    
    the type of object that this is
  - setShadingType
```
public void setShadingType(int shadingType)
```
    This will set the shading type.
    
    Parameters:
    
    shadingType - the new shading type
  - getShadingType
```
public abstract int getShadingType()
```
    This will return the shading type.
    
    Returns:
    
    the shading typ
  - setBackground
```
public void setBackground(COSArray newBackground)
```
    This will set the background.
    
    Parameters:
    
    newBackground - the new background
  - getBackground
```
public COSArray getBackground()
```
    This will return the background.
    
    Returns:
    
    the background
  - getBBox
```
public PDRectangle getBBox()
```
    An array of four numbers in the form coordinate system (see below), giving the coordinates of the left, bottom, right, and top edges, respectively, of the shading's bounding box.
    
    Returns:
    
    the BBox of the form
  - setBBox
```
public void setBBox(PDRectangle newBBox)
```
    This will set the BBox (bounding box) for this Shading.
    
    Parameters:
    
    newBBox - the new BBox
  - setAntiAlias
```
public void setAntiAlias(boolean antiAlias)
```
    This will set the AntiAlias value.
    
    Parameters:
    
    antiAlias - the new AntiAlias value
  - getAntiAlias
```
public boolean getAntiAlias()
```
    This will return the AntiAlias value.
    
    Returns:
    
    the AntiAlias value
  - getColorSpace
```
public PDColorSpace getColorSpace()
                           throws IOException
```
    This will get the color space or null if none exists.
    
    Returns:
    
    the color space for the shading
    
    Throws:
    
    IOException - if there is an error getting the color space
  - setColorSpace
```
public void setColorSpace(PDColorSpace colorSpace)
```
    This will set the color space for the shading.
    
    Parameters:
    
    colorSpace - the color space
  - create
```
public static PDShading create(COSDictionary resourceDictionary)
                        throws IOException
```
    Create the correct PD Model shading based on the COS base shading.
    
    Parameters:
    
    resourceDictionary - the COS shading dictionary
    
    Returns:
    
    the newly created shading resources object
    
    Throws:
    
    IOException - if we are unable to create the PDShading object
  - setFunction
```
public void setFunction(PDFunction newFunction)
```
    This will set the function for the color conversion.
    
    Parameters:
    
    newFunction - the new function
  - setFunction
```
public void setFunction(COSArray newFunctions)
```
    This will set the functions COSArray for the color conversion.
    
    Parameters:
    
    newFunctions - the new COSArray containing all functions
  - getFunction
```
public PDFunction getFunction()
                       throws IOException
```
    This will return the function used to convert the color values.
    
    Returns:
    
    the function
    
    Throws:
    
    IOException - if we were not able to create the function.
  - evalFunction
```
public float[] evalFunction(float inputValue)
                     throws IOException
```
    Convert the input value using the functions of the shading dictionary.
    
    Parameters:
    
    inputValue - the input value
    
    Returns:
    
    the output values
    
    Throws:
    
    IOException - thrown if something went wrong
  - evalFunction
```
public float[] evalFunction(float[] input)
                     throws IOException
```
    Convert the input values using the functions of the shading dictionary.
    
    Parameters:
    
    input - the input values
    
    Returns:
    
    the output values
    
    Throws:
    
    IOException - thrown if something went wrong
  - toPaint
```
public abstract Paint toPaint(Matrix matrix)
```
    Returns an AWT paint which corresponds to this shading
    
    Parameters:
    
    matrix - the pattern matrix concatenated with that of the parent content stream, this matrix which maps the pattern's internal coordinate system to user space
    
    Returns:
    
    an AWT Paint instance
  - isInherited
```
public boolean isInherited()
```
    Specified by:
    
    isInherited in interface PDInheritableResource
  - setInherited
```
public void setInherited(boolean inherited)
```

Class PDShading

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SHADING_TYPE1

SHADING_TYPE2

SHADING_TYPE3

SHADING_TYPE4

SHADING_TYPE5

SHADING_TYPE6

SHADING_TYPE7

Constructor Detail

PDShading

PDShading

Method Detail

getCOSObject

getType

setShadingType

getShadingType

setBackground

getBackground

getBBox

setBBox

setAntiAlias

getAntiAlias

getColorSpace

setColorSpace

create

setFunction

setFunction

getFunction

evalFunction

evalFunction

toPaint

isInherited

setInherited