PerspectiveTransform class

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.

@author Sean Owen

Properties

a11 → double

final

a12 → double

final

a13 → double

final

a21 → double

final

a22 → double

final

a23 → double

final

a31 → double

final

a32 → double

final

a33 → double

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

buildAdjoint() → PerspectiveTransform

Adjoint is the transpose of the cofactor matrix:

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

times(PerspectiveTransform other) → PerspectiveTransform

toString() → String

A string representation of this object.

inherited

transformPoints(List<double> points) → void

transformPointsPair(List<double> xValues, List<double> yValues) → void

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

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

quadrilateralToSquare(double x0, double y0, double x1, double y1, double x2, double y2, double x3, double y3) → PerspectiveTransform

Here, the adjoint serves as the inverse:

squareToQuadrilateral(double x0, double y0, double x1, double y1, double x2, double y2, double x3, double y3) → PerspectiveTransform