Class AffineTransform

AI-generated Key Takeaways

• AffineTransform uses a 3x3 matrix to transform source coordinates into destination coordinates.

• The transformation involves scaling, shearing, and translation of coordinates.

• The class provides methods to retrieve the individual scaling, shearing, and translation elements.

• An AffineTransform object can be used to create a new AffineTransformBuilder.

AffineTransform

A 3x3 matrix used to transform source coordinates (x1, y1) into destination coordinates (x2, y2) according to matrix multiplication:

[ x2 ]   [ scaleX shearX translateX ] [ x1 ]
[ y2 ] = [ shearY scaleY translateY ] [ y1 ]
[ 1  ]   [   0      0        1      ] [ 1  ]

After transformation,

x2 = scaleX * x1 + shearX * y1 + translateX;
y2 = scaleY * y1 + shearY * x1 + translateY;

Methods

Method	Return type	Brief description
getScaleX()	Number	Gets the X coordinate scaling element.
getScaleY()	Number	Gets the Y coordinate scaling element.
getShearX()	Number	Gets the X coordinate shearing element.
getShearY()	Number	Gets the Y coordinate shearing element.
getTranslateX()	Number	Gets the X coordinate translation element in points.
getTranslateY()	Number	Gets the Y coordinate translation element in points.
toBuilder()	AffineTransformBuilder	Returns a new AffineTransformBuilder based on this transform.

Detailed documentation

getScaleX()

Gets the X coordinate scaling element.

Return

Number

---

getScaleY()

Gets the Y coordinate scaling element.

Return

Number

---

getShearX()

Gets the X coordinate shearing element.

Return

Number

---

getShearY()

Gets the Y coordinate shearing element.

Return

Number

---

getTranslateX()

Gets the X coordinate translation element in points.

Return

Number

---

getTranslateY()

Gets the Y coordinate translation element in points.

Return

Number

---

toBuilder()

Returns a new AffineTransformBuilder based on this transform.

Return

AffineTransformBuilder