sugr
Class Affinity_2D

java.lang.Object
  sugr.Element
      sugr.Transformation
          sugr.Homography_2D
              sugr.Affinity_2D

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

Direct Known Subclasses:

Motion_2D

public class Affinity_2D

extends Homography_2D

This class contains constructors to build a Affinity_2D. Its matrix needs 6 entries to build it: A Affinity_2D consists of:

• Transformation(2)
• Rotation(1),
• Scale (2),
• Shear (1),

Author:

Norbert Fischer

See Also:

Serialized Form

Field Summary

private static long

serialVersionUID Class version number for serialization

Fields inherited from class sugr.Homography_2D

DIM

Fields inherited from class sugr.Element

cov, MAXITER, v

Constructor Summary

Affinity_2D()
standard constructor. creates an identity matrix

Affinity_2D(double a, double b, double c, double d, double e, double f)
sets the matrix by hand. positions are: |a c e| |b d f| |0 0 1|

Affinity_2D(double a, double b, double c, double d, double e, double f, Matrix cov)
sets the matrix with covariance by hand. positions are: |a c e| |b d f| |0 0 1|

Affinity_2D(Rotation_2D rot, Translation_2D trans, Vector scale, double shear, boolean shearSymmetric)
Creates an affinity_2D by 6 paramaters: Transformation(2) Rotation(1), Scale (2), in x and y different values possible Shear (1), Error propagation is done automatically.

Affinity_2D(Rotation_2D rot, Translation_2D trans, Vector scale, double shear, boolean shearSymmetric, Matrix cov)
Creates an affinity_2D with covariance by 6 paramaters: Transformation(2) Rotation(1), Scale (2), in x and y different values possible Shear (1), No error propagation will be done.

Method Summary

int	getDegreesOfFreedom() Returns the number of elements to specify this transformation

Methods inherited from class sugr.Homography_2D

doCondition, getDimCol, getDimRow, getJacobianAfterFirst, getJacobianAfterSecond, transform

Methods inherited from class sugr.Transformation

errorProp, getDimension, getJacobianOfRelation, getReducedAB, getTransformationMatrix, getTransposeTransMatrix, transform

Methods inherited from class sugr.Element

approximate, calcCov, changeNullspace, changeNullspace, checkCovDim, checkElement, clone, ensureConstraints, estimate, estimate, gaussHelmertIterations, gaussHelmertIterationsOld, getConstraintValue, getCov, getJacobianOfConstraint, getV, normalizeSphere, normalizeSphereComparable, print, print, reduceFirstMatrix, reduceMatrix, reduceMatrix, setCov, setV, toString

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Class version number for serialization

See Also:

Constant Field Values

Constructor Detail

Affinity_2D

public Affinity_2D()

standard constructor. creates an identity matrix

Affinity_2D

public Affinity_2D(double a,
                   double b,
                   double c,
                   double d,
                   double e,
                   double f)

sets the matrix by hand. positions are:

           |a  c  e|
           |b  d  f|
           |0  0  1|
 

Affinity_2D

public Affinity_2D(double a,
                   double b,
                   double c,
                   double d,
                   double e,
                   double f,
                   Matrix cov)

sets the matrix with covariance by hand. positions are:

           |a  c  e|
           |b  d  f|
           |0  0  1|
 

Parameters:

cov - 9x9 matrix

Affinity_2D

public Affinity_2D(Rotation_2D rot,
                   Translation_2D trans,
                   Vector scale,
                   double shear,
                   boolean shearSymmetric)

Creates an affinity_2D by 6 paramaters:

• Transformation(2)
• Rotation(1),
• Scale (2), in x and y different values possible
• Shear (1),

Error propagation is done automatically.

Parameters:

rot - contains the rotation matrix

trans - contains the translation matrix

scale - a vector with dimension 2

shear - just as the name says

shearSymmetric - boolean Flag. Set it true to get symmetric shear otherwise unsymmetric

Affinity_2D

public Affinity_2D(Rotation_2D rot,
                   Translation_2D trans,
                   Vector scale,
                   double shear,
                   boolean shearSymmetric,
                   Matrix cov)

Creates an affinity_2D with covariance by 6 paramaters:

• Transformation(2)
• Rotation(1),
• Scale (2), in x and y different values possible
• Shear (1),

No error propagation will be done.

Parameters:

rot - contains the rotation matrix

trans - contains the translation matrix

scale - a vector with dimension 2

shear - just as the name says

shearSymmetric - boolean Flag. Set it true to get symmetric shear otherwise unsymmetric

cov - 9x9-matrix

Method Detail

getDegreesOfFreedom

public int getDegreesOfFreedom()

Returns the number of elements to specify this transformation

Overrides:

getDegreesOfFreedom in class Homography_2D