Class PerspectiveTransform

Namespace

ZXing.Common

Assembly

zxing.dll

This class implements a perspective transform in two dimensions. Given four source and four destination points, it will compute the transformation implied between them. The code is based directly upon section 3.4.2 of George Wolberg's "Digital Image Warping"; see pages 54-56.

public sealed class PerspectiveTransform

Inheritance

object

PerspectiveTransform

Inherited Members

object.GetType()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Methods

quadrilateralToQuadrilateral(float, float, float, float, float, float, float, float, float, float, float, float, float, float, float, float)

public static PerspectiveTransform quadrilateralToQuadrilateral(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float x0p, float y0p, float x1p, float y1p, float x2p, float y2p, float x3p, float y3p)

Parameters

x0 float

y0 float

x1 float

y1 float

x2 float

y2 float

x3 float

y3 float

x0p float

y0p float

x1p float

y1p float

x2p float

y2p float

x3p float

y3p float

Returns

PerspectiveTransform

quadrilateralToSquare(float, float, float, float, float, float, float, float)

public static PerspectiveTransform quadrilateralToSquare(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3)

Parameters

x0 float

y0 float

x1 float

y1 float

x2 float

y2 float

x3 float

y3 float

Returns

PerspectiveTransform

squareToQuadrilateral(float, float, float, float, float, float, float, float)

public static PerspectiveTransform squareToQuadrilateral(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3)

Parameters

x0 float

y0 float

x1 float

y1 float

x2 float

y2 float

x3 float

y3 float

Returns

PerspectiveTransform

transformPoints(float[])

public void transformPoints(float[] points)

Parameters

points float[]

transformPoints(float[], float[])

Convenience method, not optimized for performance.

public void transformPoints(float[] xValues, float[] yValues)

Parameters

xValues float[]

yValues float[]