Class AffineTransformation

An affine transformation that can transform points.

Hierarchy

AffineTransformation

Index

Methods

concatenate

concatenate(other: AffineTransformation): void

- Defined in GDJS/Runtime/affinetransformation.ts:354
Concatenate a transformation after this one.

Parameters
- other: AffineTransformation
  
  The transformation to concatenate.
Returns void

copyFrom

copyFrom(other: AffineTransformation): AffineTransformation

- Defined in GDJS/Runtime/affinetransformation.ts:90
Copy a transformation.

Parameters
- other: AffineTransformation
  
  The transformation to copy.
Returns AffineTransformation

equals

equals(other: AffineTransformation): boolean

- Defined in GDJS/Runtime/affinetransformation.ts:53
Check if this is equals to another transformation.

Parameters
- other: AffineTransformation
  
  The transformation to check.
Returns boolean

flipX

flipX(anchorX: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:313
Concatenate an horizontal flip.

Parameters
- anchorX: number
  
  The flip anchor point X.
Returns void

flipY

flipY(anchorY: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:343
Concatenate an vertical flip.

Parameters
- anchorY: number
  
  The flip anchor point Y.
Returns void

invert

invert(): AffineTransformation

- Defined in GDJS/Runtime/affinetransformation.ts:445
Invert the matrix.

Returns AffineTransformation

isIdentity

isIdentity(): boolean

- Defined in GDJS/Runtime/affinetransformation.ts:37
Check if this transformation is the identity.

Returns boolean

nearlyEquals

nearlyEquals(other: AffineTransformation, epsilon: number): boolean

- Defined in GDJS/Runtime/affinetransformation.ts:72
Check if this is almost equals to another transformation.

Parameters
- other: AffineTransformation
  
  The transformation to check.
- epsilon: number
  
  The relative margin error.
Returns boolean

preConcatenate

preConcatenate(other: AffineTransformation): void

- Defined in GDJS/Runtime/affinetransformation.ts:390
Concatenate a transformation before this one.

Parameters
- other: AffineTransformation
  
  The transformation to concatenate.
Returns void

rotate

rotate(angle: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:214
Concatenate a rotation.

Parameters
- angle: number
  
  The angle of rotation in radians.
Returns void

rotateAround

rotateAround(angle: number, anchorX: number, anchorY: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:283
Concatenate a rotation.

Parameters
- angle: number
  
  The angle of rotation in radians.
- anchorX: number
  
  The rotation anchor point X.
- anchorY: number
  
  The rotation anchor point Y.
Returns void

scale

scale(sx: number, sy: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:166
Concatenate a scale.

Parameters
- sx: number
  
  The horizontal scale value.
- sy: number
  
  The vertical scale value.
Returns void

setToFlipX

setToFlipX(anchorX: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:295
Reset to an horizontal flip.

Parameters
- anchorX: number
  
  The flip anchor point X.
Returns void

setToFlipY

setToFlipY(anchorY: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:325
Reset to an vertical flip.

Parameters
- anchorY: number
  
  The flip anchor point Y.
Returns void

setToIdentity

setToIdentity(): void

- Defined in GDJS/Runtime/affinetransformation.ts:21
Reset to the identity.

Returns void

setToRotation

setToRotation(theta: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:185
Reset to a rotation.

Parameters
- theta: number
Returns void

setToRotationAround

setToRotationAround(angle: number, anchorX: number, anchorY: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:252
Reset to a rotation.

Parameters
- angle: number
  
  The angle of rotation in radians.
- anchorX: number
  
  The rotation anchor point X.
- anchorY: number
  
  The rotation anchor point Y.
Returns void

setToScale

setToScale(sx: number, sy: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:147
Reset to a scale.

Parameters
- sx: number
  
  The horizontal scale value.
- sy: number
  
  The vertical scale value.
Returns void

setToTranslation

setToTranslation(tx: number, ty: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:110
Reset to a translation.

Parameters
- tx: number
- ty: number
Returns void

toString

toString(): string

- Defined in GDJS/Runtime/affinetransformation.ts:467
Returns string

transform

transform(source: FloatPoint, destination: FloatPoint): void

- Defined in GDJS/Runtime/affinetransformation.ts:428
Transform a point.

Parameters
- source: FloatPoint
  
  The point to transform.
- destination: FloatPoint
  
  The Point to store the transformed coordinates.
Returns void

translate

translate(tx: number, ty: number): void

- Defined in GDJS/Runtime/affinetransformation.ts:129
Concatenate a translation.

Parameters
- tx: number
  
  The horizontal translation value.
- ty: number
  
  The vertical translation value.
Returns void

Constructors

constructor

new AffineTransformation(): AffineTransformation

- Defined in GDJS/Runtime/affinetransformation.ts:11
Initialize to the identity.

Returns AffineTransformation

Properties

Private matrix

matrix: Float32Array

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