com.adobe.internal.pdftoolkit.core.types

Class ASQuad

java.lang.Object

com.adobe.internal.pdftoolkit.core.types.ASObject

com.adobe.internal.pdftoolkit.core.types.ASQuad

public class ASQuad
extends ASObject

ASQuad represents a convex quadrilateral. An ASQuad is typically used to represent a bounding box (a rectangle) which has undergone an affine transformation (e.g., scaled, rotated, skewed, etc.). In this sense, the coordinate tags (p1, p2, p3, p4) do not necessarily correspond to the actual relative location of the coordinates. Instead, they correspond to the logical corners of the object encased in the quad. For instance, a word has a natural bounding box (rectangle) with a well- defined upper-left, upper-right, lower-left, and lower-right corners. When rotated 45 degrees, the coordinates of the quad rotate with the word and the tags are considered affixed to the bounding box of the word.

Constructor Summary

Constructors

Constructor and Description
ASQuad(ASCoordinate p1, ASCoordinate p2, ASCoordinate p3, ASCoordinate p4)
ASQuad(ASQuad quad) Copy constructor
ASQuad(ASRectangle rect) Construct a quad from a rectangle

Method Summary

Modifier and Type	Method and Description
double	getMaxX()
double	getMaxY()
double	getMinX()
double	getMinY()
ASCoordinate	p1()
ASCoordinate	p2()
ASCoordinate	p3()
ASCoordinate	p4()
String	toString()
ASQuad	transform(ASMatrix ctm)
void	write(OutputByteStream outputByteStream) Writes the ASHexString in to the given OutputStream in the format expected by the PDF Spec.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ASQuad

public ASQuad(ASCoordinate p1,
              ASCoordinate p2,
              ASCoordinate p3,
              ASCoordinate p4)

Parameters:

p1 - lower-left corner relative to the object enclosed by the quad

p2 - lower-right corner relative to the object enclosed by the quad

p3 - upper-right corner relative to the object enclosed by the quad

p4 - upper-left corner relative to the object enclosed by the quad

ASQuad

public ASQuad(ASRectangle rect)

Construct a quad from a rectangle

Parameters:

rect -

ASQuad

public ASQuad(ASQuad quad)

Copy constructor

Parameters:

quad -

Method Detail

p1

public ASCoordinate p1()

p2

public ASCoordinate p2()

p3

public ASCoordinate p3()

p4

public ASCoordinate p4()

transform

public ASQuad transform(ASMatrix ctm)

toString

public String toString()

Overrides:

toString in class Object

write

public void write(OutputByteStream outputByteStream)
           throws PDFIOException

Writes the ASHexString in to the given OutputStream in the format expected by the PDF Spec.

Specified by:

write in class ASObject

Parameters:

outputByteStream - OutputByteStream to write to.

Throws:

PDFIOException

See Also:

ASString

getMinX

public double getMinX()

getMaxX

public double getMaxX()

getMinY

public double getMinY()

getMaxY

public double getMaxY()