IdentityTransform (pythagoras 1.4.3 API)

java.lang.Object
- pythagoras.f.AbstractTransform
- - pythagoras.f.IdentityTransform

All Implemented Interfaces:

Transform
```
public class IdentityTransform
extends AbstractTransform
```
Implements the identity transform.

Field Summary

Fields
Modifier and Type Field and Description

static int GENERALITY
Identifies the identity transform in generality().

Fields
Modifier and Type	Field and Description
`static int`	`GENERALITY` Identifies the identity transform in `generality()`.

Constructor Summary

Constructors
Constructor and Description

IdentityTransform()

Constructors
Constructor and Description
`IdentityTransform()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Transform`	`concatenate(Transform other)` Returns a new transform comprised of the concatenation of `other` to this transform (i.e.
`IdentityTransform`	`copy()` Returns a copy of this transform.
`int`	`generality()` Returns an integer that increases monotonically with the generality of the transform implementation.
`void`	`get(float[] matrix)` Copies the affine transform matrix into the supplied array.
`Point`	`inverseTransform(IPoint p, Point into)` Inverse transforms the supplied point, writing the result into `into`.
`Vector`	`inverseTransform(IVector v, Vector into)` Inverse transforms the supplied vector, writing the result into `into`.
`Transform`	`invert()` Returns a new transform that represents the inverse of this transform.
`Transform`	`lerp(Transform other, float t)` Returns a new transform comprised of the linear interpolation between this transform and the specified other.
`Transform`	`preConcatenate(Transform other)` Returns a new transform comprised of the concatenation of this transform to `other` (i.e.
`float`	`rotation()` Returns the rotation applied by this transform.
`float`	`scaleX()` Returns the x-component of the scale applied by this transform.
`float`	`scaleY()` Returns the y-component of the scale applied by this transform.
`String`	`toString()`
`void`	`transform(float[] src, int srcOff, float[] dst, int dstOff, int count)` Transforms the supplied points.
`void`	`transform(IPoint[] src, int srcOff, Point[] dst, int dstOff, int count)` Transforms the supplied points.
`Point`	`transform(IPoint p, Point into)` Transforms the supplied point, writing the result into `into`.
`Vector`	`transform(IVector v, Vector into)` Transforms the supplied vector, writing the result into `into`.
`Vector`	`transformPoint(IVector v, Vector into)` Transforms the supplied vector as a point (accounting for translation), writing the result into `into`.
`float`	`tx()` Returns the x-coordinate of the translation component.
`float`	`ty()` Returns the y-coordinate of the translation component.
`float`	`uniformScale()` Returns the uniform scale applied by this transform.

Methods inherited from class pythagoras.f.AbstractTransform
clone, rotate, scale, scale, scaleX, scaleY, setRotation, setScale, setScaleX, setScaleY, setTransform, setTranslation, setTx, setTy, setUniformScale, shear, shearX, shearY, translate, translateX, translateY, translation, uniformScale

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - GENERALITY
```
public static final int GENERALITY
```
    Identifies the identity transform in generality().
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - IdentityTransform
```
public IdentityTransform()
```
- Method Detail
  - uniformScale
```
public float uniformScale()
```
    Description copied from interface: Transform
    
    Returns the uniform scale applied by this transform. The uniform scale will be approximated for non-uniform transforms.
  - scaleX
```
public float scaleX()
```
    Description copied from interface: Transform
    
    Returns the x-component of the scale applied by this transform. Note that this will be extracted and therefore approximate for affine transforms.
  - scaleY
```
public float scaleY()
```
    Description copied from interface: Transform
    
    Returns the y-component of the scale applied by this transform. Note that this will be extracted and therefore approximate for affine transforms.
  - rotation
```
public float rotation()
```
    Description copied from interface: Transform
    
    Returns the rotation applied by this transform. Note that the rotation is extracted and therefore approximate for affine transforms.
  - tx
```
public float tx()
```
    Description copied from interface: Transform
    
    Returns the x-coordinate of the translation component.
  - ty
```
public float ty()
```
    Description copied from interface: Transform
    
    Returns the y-coordinate of the translation component.
  - get
```
public void get(float[] matrix)
```
    Description copied from interface: Transform
    
    Copies the affine transform matrix into the supplied array.
    
    Parameters:
    
    matrix - the array which receives m00, m01, m10, m11, tx, ty.
  - invert
```
public Transform invert()
```
    Description copied from interface: Transform
    
    Returns a new transform that represents the inverse of this transform.
  - concatenate
```
public Transform concatenate(Transform other)
```
    Description copied from interface: Transform
    
    Returns a new transform comprised of the concatenation of other to this transform (i.e. this x other).
  - preConcatenate
```
public Transform preConcatenate(Transform other)
```
    Description copied from interface: Transform
    
    Returns a new transform comprised of the concatenation of this transform to other (i.e. other x this).
  - lerp
```
public Transform lerp(Transform other,
                      float t)
```
    Description copied from interface: Transform
    
    Returns a new transform comprised of the linear interpolation between this transform and the specified other.
  - transform
```
public Point transform(IPoint p,
                       Point into)
```
    Description copied from interface: Transform
    
    Transforms the supplied point, writing the result into into.
    
    into - a point into which to store the result, may be the same object as p.
    
    Returns:
    
    into for chaining.
  - transform
```
public void transform(IPoint[] src,
                      int srcOff,
                      Point[] dst,
                      int dstOff,
                      int count)
```
    Description copied from interface: Transform
    
    Transforms the supplied points.
    
    Parameters:
    
    src - the points to be transformed.
    
    srcOff - the offset into the src array at which to start.
    
    dst - the points into which to store the transformed points. May be src.
    
    dstOff - the offset into the dst array at which to start.
    
    count - the number of points to transform.
  - transform
```
public void transform(float[] src,
                      int srcOff,
                      float[] dst,
                      int dstOff,
                      int count)
```
    Description copied from interface: Transform
    
    Transforms the supplied points.
    
    Parameters:
    
    src - the points to be transformed (as [x, y, x, y, ...]).
    
    srcOff - the offset into the src array at which to start.
    
    dst - the points into which to store the transformed points. May be src.
    
    dstOff - the offset into the dst array at which to start.
    
    count - the number of points to transform.
  - inverseTransform
```
public Point inverseTransform(IPoint p,
                              Point into)
```
    Description copied from interface: Transform
    
    Inverse transforms the supplied point, writing the result into into.
    
    into - a point into which to store the result, may be the same object as p.
    
    Returns:
    
    into, for chaining.
  - transformPoint
```
public Vector transformPoint(IVector v,
                             Vector into)
```
    Description copied from interface: Transform
    
    Transforms the supplied vector as a point (accounting for translation), writing the result into into.
    
    into - a vector into which to store the result, may be the same object as v.
    
    Returns:
    
    into, for chaining.
  - transform
```
public Vector transform(IVector v,
                        Vector into)
```
    Description copied from interface: Transform
    
    Transforms the supplied vector, writing the result into into.
    
    into - a vector into which to store the result, may be the same object as v.
    
    Returns:
    
    into, for chaining.
  - inverseTransform
```
public Vector inverseTransform(IVector v,
                               Vector into)
```
    Description copied from interface: Transform
    
    Inverse transforms the supplied vector, writing the result into into.
    
    into - a vector into which to store the result, may be the same object as v.
    
    Returns:
    
    into, for chaining.
  - copy
```
public IdentityTransform copy()
```
    Description copied from interface: Transform
    
    Returns a copy of this transform.
    
    Specified by:
    
    copy in interface Transform
    
    Specified by:
    
    copy in class AbstractTransform
  - generality
```
public int generality()
```
    Description copied from interface: Transform
    
    Returns an integer that increases monotonically with the generality of the transform implementation. Used internally when combining transforms.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class IdentityTransform

Field Summary

Constructor Summary

Method Summary

Methods inherited from class pythagoras.f.AbstractTransform

Methods inherited from class java.lang.Object

Field Detail

GENERALITY

Constructor Detail

IdentityTransform

Method Detail

uniformScale

scaleX

scaleY

rotation

tx

ty

get

invert

concatenate

preConcatenate

lerp

transform

transform

transform

inverseTransform

transformPoint

transform

inverseTransform

copy

generality

toString