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Matrix

declare class Matrix {}

Matrix math utilities

Instance Method​

constructor​

declare class Matrix {
    constructor();
}

  • Description​

    Create a new matrix instance.

reset​

declare class Matrix {
    reset(): void
}

  • Description​

    Resets the this to the identity matrix.

setTranslate​

declare class Matrix {
    setTranslate(dx: number, dy: number): void
}

  • Description​

    Set the matrix to translate by (dx, dy).

setScale​

declare class Matrix {
    setScale(sx: number, sy: number): void
}

  • Description​

    Set the matrix to scale by sx and sy.

setScale​

declare class Matrix {
    setScale(sx: number, sy: number, px: number, py: number): void
}

  • Description​

    Set the matrix to scale by sx and sy, with a pivot point at (px, py).

setRotate​

declare class Matrix {
    setRotate(degrees: number): void
}

  • Description​

    Set the matrix to rotate about (0,0) by the specified number of degrees.

setRotate​

declare class Matrix {
    setRotate(degrees: number, px: number, py: number): void
}

  • Description​

    Set the matrix to rotate by the specified number of degrees, with a pivot point at (px, py).

setSinCos​

declare class Matrix {
    setSinCos(sinValue: number, cosValue: number): void
}

  • Description​

    Set the matrix to rotate by the specified sine and cosine values.

setSinCos​

declare class Matrix {
    setSinCos(sinValue: number, cosValue: number, px: number, py: number): void
}

  • Description​

    Set the matrix to rotate by the specified sine and cosine values, with a pivot point at (px, py).

setSkew​

declare class Matrix {
    setSkew(kx: number, ky: number): void
}

  • Description​

    Set the matrix to skew by sx and sy.

setSkew​

declare class Matrix {
    setSkew(kx: number, ky: number, px: number, py: number): void
}

  • Description​

    Set the matrix to skew by sx and sy, with a pivot point at (px, py).

setConcat​

declare class Matrix {
    setConcat(a: Matrix, b: Matrix): void
}

  • Description​

    Set the matrix to the concatenation of the two specified matrices and return true.

preTranslate​

declare class Matrix {
    preTranslate(dx: number, dy: number): void
}

  • Description​

    Preconcats the matrix with the specified translation.

preScale​

declare class Matrix {
    preScale(sx: number, sy: number): void;
    preScale(sx: number, sy: number, px: number, py: number): void
}

  • Description​

    Preconcats the matrix with the specified scale.

preRotate​

declare class Matrix {
    preRotate(degrees: number): void;
    preRotate(degrees: number, px: number, py: number): void;
}

  • Description​

    Preconcats the matrix with the specified rotation.

preSkew​

declare class Matrix {
    preSkew(kx: number, ky: number): void
    preSkew(kx: number, ky: number, px: number, py: number): void
}

  • Description​

    Preconcats the matrix with the specified skew.

preConcat​

declare class Matrix {
    preConcat(other: Matrix): number
}

  • Description​

    Preconcats the matrix with the specified matrix.

postTranslate​

declare class Matrix {
    postTranslate(dx: number, dy: number): void
}

  • Description​

    Postconcats the matrix with the specified translation.

postScale​

declare class Matrix {
    postScale(sx: number, sy: number): void;
    postScale(sx: number, sy: number, px: number, py: number): void;
}

  • Description​

    Postconcats the matrix with the specified scale.

postRotate​

declare class Matrix {
    postRotate(degrees: number): void
    postRotate(degrees: number, px: number, py: number): void
}

  • Description​

    Postconcats the matrix with the specified rotation.

postSkew​

declare class Matrix {
    postSkew(kx: number, ky: number): void
    postSkew(kx: number, ky: number, px: number, py: number): void
}

  • Description​

    Postconcats the matrix with the specified skew.

postConcat​

declare class Matrix {
    postConcat(other: Matrix): number
}

  • Description​

    Postconcats the matrix with the specified matrix.

invert​

declare class Matrix {
    invert(inverse: Matrix): void
}

  • Description​

    If this matrix can be inverted, return true and if inverse is not null, set inverse to be the inverse of this matrix.

mapPoints​

declare class Matrix {
    mapPoints(pts: number[][]): void
}

  • Description​

    Apply this matrix to the array of 2D points, and write the transformed points back into the array.

mapPoints​

declare class Matrix {
    mapPoints(dst: number[][], src: number[][]): void
    mapPoints(dst: number[][], dstIndex: number, src: number[][], srcIndex: number, pointCount: number): void
}

  • Description​

    Apply this matrix to the array of 2D points specified by src, and write the transformed points into the array of points specified by dst.

mapVectors​

declare class Matrix {
    mapVectors(vecs: number[][]): void
}

  • Description​

    Apply this matrix to the array of 2D vectors, and write the transformed vectors back into the array.

mapVectors​

declare class Matrix {
    mapVectors(dst: number[][], src: number[][]): void;
    mapVectors(dst: number[][], dstIndex: number, src: number[][], srcIndex: number, vectorCount: number): void;
}

  • Description​

    Apply this matrix to the array of 2D vectors specified by src, and write the transformed vectors into the array of vectors specified by dst.

mapRect​

declare class Matrix {
    mapRect(rect: Rect): void
}

  • Description​

    Apply this matrix to the rectangle, and write the transformed rectangle back into it.

mapRect​

declare class Matrix {
    mapRect(dst: Rect, src: Rect): void
}

  • Description​

    Apply this matrix to the src rectangle, and write the transformed rectangle into dst.

mapRadius​

declare class Matrix {
    mapRadius(radius: number): number
}

  • Description​

    Return the mean radius of a circle after it has been mapped by this matrix.

getValues​

declare class Matrix {
    getValues(accept: number[]): number[]
}

  • Description​

    Copy 9 values from the matrix into the array.

setValues​

declare class Matrix {
    setValues(values: number[]): void
}

  • Description​

    Copy 9 values from the array into the matrix.

setRectToRect​

declare class Matrix {
    setRectToRect(src: Rect, dst: Rect, stf: Matrix.ScaleToFit): boolean
}

  • Description​

    Set the matrix to the scale and translate values that map the source rectangle to the destination rectangle, returning true if the the result can be represented.

setPolyToPoly​

declare class Matrix {
    setPolyToPoly(src: number[][], srcIndex: number, dst: number[][], dstIndex: number, pointCount: number): boolean
}

  • Description​

    Set the matrix such that the specified src points would map to the specified dst points.

equals​

declare class Matrix {
    equals(target: Matrix): boolean
}

  • Description​

    Returns true iff obj is a Matrix and its values equal our values.