com.microblink.blinkinput.geometry

Class Quadrilateral

java.lang.Object

com.microblink.blinkinput.geometry.Quadrilateral

All Implemented Interfaces:

android.os.Parcelable

public class Quadrilateral
extends java.lang.Object
implements android.os.Parcelable

Nested Class Summary

Nested classes/interfaces inherited from interface android.os.Parcelable

android.os.Parcelable.ClassLoaderCreator, android.os.Parcelable.Creator

Field Summary

Fields

Modifier and Type	Field and Description
static android.os.Parcelable.Creator	CREATOR

Fields inherited from interface android.os.Parcelable

CONTENTS_FILE_DESCRIPTOR, PARCELABLE_WRITE_RETURN_VALUE

Constructor Summary

Constructors

Modifier	Constructor and Description
	Quadrilateral()
	Quadrilateral(float[] points) Constructor from float array.
	Quadrilateral(int top, int bottom, int left, int right, int hostActivityOrientation)
protected	Quadrilateral(android.os.Parcel in)
	Quadrilateral(Point uleft, Point uright, Point lleft, Point lright)

Method Summary

Modifier and Type	Method and Description
Quadrilateral	clone()
int	describeContents()
int	getColor()
Point	getLowerLeft() Returns the point nearest to (0, height) coordinate
Point	getLowerRight() Returns the point nearest to (width, height) coordinate
Quadrilateral	getSortedQuad() Returns the Quadrilateral which has same corners as original, but it guarantees that upper left point is the point nearest to (0,0) coordinate.
Point	getUpperLeft() Returns the point nearest to (0, 0) coordinate.
Point	getUpperRight() Returns the point nearest to (width, 0) coordinate
boolean	isDefaultQuad()
boolean	isEmpty() Returns true if quadrilateral is empty, i.e.
boolean	matchesMargins(int top, int bottom, int left, int right, int hostActivityOrientation)
void	mirror(int canvasWidth, int canvasHeight, int hostActivityOrientation) Mirrors the quadrangle so that it can be properly drawn on mirrored camera preview
void	setColor(int color)
void	setIsDefaultQuad(boolean defaultQuad)
void	setMargins(int top, int bottom, int left, int right, int hostActivityOrientation)
void	setPoints(Point uleft, Point uright, Point lleft, Point lright)
void	toFloatArray(float[] arr) Converts this quadrilateral to array of float points.
java.lang.String	toString()
void	writeToParcel(android.os.Parcel dest, int flags)

Methods inherited from class java.lang.Object

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

Field Detail

CREATOR

@NonNull
public static final android.os.Parcelable.Creator CREATOR

Constructor Detail

Quadrilateral

public Quadrilateral(int top,
                     int bottom,
                     int left,
                     int right,
                     int hostActivityOrientation)

Quadrilateral

public Quadrilateral()

Quadrilateral

public Quadrilateral(@NonNull
                     Point uleft,
                     @NonNull
                     Point uright,
                     @NonNull
                     Point lleft,
                     @NonNull
                     Point lright)

Quadrilateral

public Quadrilateral(@NonNull
                     float[] points)

Constructor from float array. The points are represented as pairs (x,y) in clockwise order: upper left, upper right, lower right, lower left

Parameters:

points - float pairs representing quadrilateral points

Quadrilateral

protected Quadrilateral(@NonNull
                        android.os.Parcel in)

Method Detail

setMargins

public void setMargins(int top,
                       int bottom,
                       int left,
                       int right,
                       int hostActivityOrientation)

matchesMargins

public boolean matchesMargins(int top,
                              int bottom,
                              int left,
                              int right,
                              int hostActivityOrientation)

isEmpty

public boolean isEmpty()

Returns true if quadrilateral is empty, i.e. all 4 points have coordinates (0,0).

Returns:

true if quadrilateral is empty, i.e. all 4 points have coordinates (0,0).

toFloatArray

public void toFloatArray(@NonNull
                         float[] arr)

Converts this quadrilateral to array of float points. The points are represented as pairs (x,y) in clockwise order: upper left, upper right, lower right, lower left

setPoints

public void setPoints(@NonNull
                      Point uleft,
                      @NonNull
                      Point uright,
                      @NonNull
                      Point lleft,
                      @NonNull
                      Point lright)

toString

@NonNull
public java.lang.String toString()

Overrides:

toString in class java.lang.Object

mirror

public void mirror(int canvasWidth,
                   int canvasHeight,
                   int hostActivityOrientation)

Mirrors the quadrangle so that it can be properly drawn on mirrored camera preview

Parameters:

canvasWidth - width of canvas

canvasHeight - height of canvas

getSortedQuad

@NonNull
public Quadrilateral getSortedQuad()

Returns the Quadrilateral which has same corners as original, but it guarantees that upper left point is the point nearest to (0,0) coordinate.

Returns:

sorted Quadrilateral

getUpperLeft

@NonNull
public Point getUpperLeft()

Returns the point nearest to (0, 0) coordinate.

Returns:

the point nearest to (0, 0) coordinate.

getUpperRight

@NonNull
public Point getUpperRight()

Returns the point nearest to (width, 0) coordinate

Returns:

the point nearest to (width, 0) coordinate

getLowerLeft

@NonNull
public Point getLowerLeft()

Returns the point nearest to (0, height) coordinate

Returns:

the point nearest to (height, 0) coordinate

getLowerRight

@NonNull
public Point getLowerRight()

Returns the point nearest to (width, height) coordinate

Returns:

the point nearest to (width, height) coordinate

getColor

public int getColor()

setColor

public void setColor(int color)

isDefaultQuad

public boolean isDefaultQuad()

setIsDefaultQuad

public void setIsDefaultQuad(boolean defaultQuad)

clone

@NonNull
public Quadrilateral clone()

Overrides:

clone in class java.lang.Object

describeContents

public int describeContents()

Specified by:

describeContents in interface android.os.Parcelable

writeToParcel

public void writeToParcel(@NonNull
                          android.os.Parcel dest,
                          int flags)

Specified by:

writeToParcel in interface android.os.Parcelable