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DefinitelyTyped/types/sylvester/index.d.ts
2017-03-24 14:27:52 -07:00

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// Type definitions for sylvester 0.1.3
// Project: https://github.com/jcoglan/sylvester
// Definitions by: Stephane Alie <https://github.com/StephaneAlie>
// Definitions: https://github.com/borisyankov/DefinitelyTyped
// === Sylvester ===
// Vector and Matrix mathematics modules for JavaScript
// Copyright (c) 2007 James Coglan
declare module Sylvester {
interface VectorStatic {
/**
* Constructor function.
*/
create(elements: Vector|Array<number>): Vector;
i: Vector;
j: Vector;
k: Vector;
/**
* Random vector of size n.
*
* @param {number} n The vector size.
*/
Random(n: number): Vector;
/**
* Vector filled with zeros.
*
* @param {number} n The vector size.
*/
Zero(n: number): Vector;
}
interface MatrixStatic {
/**
* Constructor function.
*
* @param {Array<number>|Array<Array<number>>|Vector|Matrix} elements The elements.
*/
create(elements: Array<number>|Array<Array<number>>|Vector | Matrix): Matrix;
/**
* Identity matrix of size n.
*
* @param {number} n The size.
*/
I(n: number): Matrix;
/**
* Diagonal matrix - all off-diagonal elements are zero
*
* @param {any} elements The elements.
*/
Diagonal(elements: Array<number>|Array<Array<number>>|Vector | Matrix): Matrix;
/**
* Rotation matrix about some axis. If no axis is supplied, assume we're after a 2D transform.
*
* @param {number} theta The angle in radians.
* @param {Vector} a [Optional] The axis.
*/
Rotation(theta: number, a?: Vector): Matrix;
RotationX(t: number): Matrix;
RotationY(t: number): Matrix;
RotationZ(t: number): Matrix;
/**
* Random matrix of n rows, m columns.
*
* @param {number} n The number of rows.
* @param {number} m The number of columns.
*/
Random(n: number, m: number): Matrix;
/**
* Matrix filled with zeros.
*
* @param {number} n The number of rows.
* @param {number} m The number of columns.
*/
Zero(n: number, m: number): Matrix;
}
interface LineStatic {
/**
* Constructor function.
*
* @param Array<number>|Vector anchor The anchor vector.
* @param Array<number>|Vector direction The direction vector.
*/
create(anchor: Array<number>|Vector, direction: Array<number>|Vector): Line;
X: Line;
Y: Line;
Z: Line;
}
interface PlaneStatic {
/**
* Constructor function.
*/
create(anchor: Array<number>|Vector, normal: Array<number>|Vector): Plane;
/**
* Constructor function.
*/
create(anchor: Array<number>|Vector, v1: Array<number>|Vector, v2: Array<number>|Vector): Plane;
XY: Plane;
YZ: Plane;
ZX: Plane;
YX: Plane;
}
}
interface Vector {
/**
* Gets an array containing the vector's elements.
*/
elements: Array<number>;
/**
* Returns element i of the vector.
*/
e(i: number): number;
/**
* Returns the number of elements the vector has.
*/
dimensions(): number;
/**
* Returns the modulus ('length') of the vector.
*/
modulus(): number;
/**
* Returns true if the vector is equal to the argument.
*
* @param {Vector|Array<number>} vector The vector to compare equality.
*/
eql(vector: Vector|Array<number>): boolean;
/**
* Returns a copy of the vector.
*/
dup(): Vector;
/**
* Maps the vector to another vector according to the given function.
*
* @param {Function} fn The function to apply to each element (x, i) => {}.
*/
map(fn: (x: number, i: number) => any): Vector;
/**
* Calls the iterator for each element of the vector in turn.
*
* @param {Function} fn The function to apply to each element (x, i) => {}.
*/
each(fn: (x: number, i: number) => any): void;
/**
* Returns a new vector created by normalizing the receiver.
*/
toUnitVector(): Vector;
/**
* Returns the angle between the vector and the argument (also a vector).
*
* @param {Vector} vector The other vector to calculate the angle.
*/
angleFrom(vector: Vector): number;
/**
* Returns true if the vector is parallel to the argument.
*
* @param {Vector} vector The other vector.
*/
isParallelTo(vector: Vector): boolean;
/**
* Returns true if the vector is antiparallel to the argument.
*
* @param {Vector} vector The other vector.
*/
isAntiparallelTo(vector: Vector): boolean;
/**
* Returns true iff the vector is perpendicular to the argument.
*
* @param {Vector} vector The other vector.
*/
isPerpendicularTo(vector: Vector): boolean;
/**
* Returns the result of adding the argument to the vector.
*
* @param {Vector|Array<number>} vector The vector.
*/
add(vector: Vector|Array<number>): Vector;
/**
* Returns the result of subtracting the argument from the vector.
*
* @param {Vector|Array<number>} vector The vector.
*/
subtract(vector: Vector|Array<number>): Vector;
/**
* Returns the result of multiplying the elements of the vector by the argument.
*
* @param {number} k The value by which to multiply the vector.
*/
multiply(k: number): Vector;
/**
* Returns the result of multiplying the elements of the vector by the argument (Alias for multiply(k)).
*
* @param {number} k The value by which to multiply the vector.
*/
x(k: number): Vector;
/**
* Returns the scalar product of the vector with the argument. Both vectors must have equal dimensionality.
*
* @param: {Vector|Array<number>} vector The other vector.
*/
dot(vector: Vector|Array<number>): number;
/**
* Returns the vector product of the vector with the argument. Both vectors must have dimensionality 3.
*
* @param {Vector|Array<number>} vector The other vector.
*/
cross(vector: Vector|Array<number>): Vector;
/**
* Returns the (absolute) largest element of the vector.
*/
max(): number;
/**
* Returns the index of the first match found.
*
* @param {number} x The value.
*/
indexOf(x: number): number;
/**
* Returns a diagonal matrix with the vector's elements as its diagonal elements.
*/
toDiagonalMatrix(): Matrix;
/**
* Returns the result of rounding the elements of the vector.
*/
round(): Vector;
/**
* Returns a copy of the vector with elements set to the given value if they differ from
* it by less than Sylvester.precision.
*
* @param {number} x The value to snap to.
*/
snapTo(x: number): Vector;
/**
* Returns the vector's distance from the argument, when considered as a point in space.
*
* @param {Vector|Line|Plane} obj The object to calculate the distance.
*/
distanceFrom(obj: Vector|Line|Plane): number;
/**
* Returns true if the vector is point on the given line.
*
* @param {Line} line The line.
*/
liesOn(line: Line): boolean;
/**
* Return true if the vector is a point in the given plane.
*
* @param {Plane} plane The plane.
*/
liesIn(plane: Plane): boolean;
/**
* Rotates the vector about the given object. The object should be a point if the vector is 2D,
* and a line if it is 3D. Be careful with line directions!
*
* @param {number} t The angle in radians.
* @param {Vector|Line} obj The rotation axis.
*/
rotate(t: number, obj: Vector|Line): Vector;
/**
* Returns the result of reflecting the point in the given point, line or plane.
*
* @param {Vector|Line|Plane} obj The object.
*/
reflectionIn(obj: Vector|Line|Plane): Vector;
/**
* Utility to make sure vectors are 3D. If they are 2D, a zero z-component is added.
*/
to3D(): Vector;
/**
* Returns a string representation of the vector.
*/
inspect(): string;
/**
* Set vector's elements from an array.
*
* @param {Vector|Array<number>} els The elements.
*/
setElements(els: Vector|Array<number>): Vector;
}
interface Matrix {
/**
* Gets a nested array containing the matrix's elements.
*/
elements: Array<Array<number>>;
/**
* Returns element (i,j) of the matrix.
*
* @param {number} i The row index.
* @param {number} j The column index.
*/
e(i: number, j: number): any;
/**
* Returns row k of the matrix as a vector.
*
* @param {number} i The row index.
*/
row(i: number): Vector;
/**
* Returns column k of the matrix as a vector.
*
* @param {number} j The column index.
*/
col(j: number): Vector;
/**
* Returns the number of rows/columns the matrix has.
*
* @return {any} An object { rows: , cols: }.
*/
dimensions(): any;
/**
* Returns the number of rows in the matrix.
*/
rows(): number;
/**
* Returns the number of columns in the matrix.
*/
cols(): number;
/**
* Returns true if the matrix is equal to the argument. You can supply a vector as the argument,
* in which case the receiver must be a one-column matrix equal to the vector.
*
* @param {Vector|Matrix} matrix The argument to compare.
*/
eql(matrix: Vector|Matrix): boolean;
/**
* Returns a copy of the matrix.
*/
dup(): Matrix;
/**
* Maps the matrix to another matrix (of the same dimensions) according to the given function.
*
* @param {Function} fn The function.
*/
map(fn: (x: number, i: number, j: number) => any): Matrix;
/**
* Returns true iff the argument has the same dimensions as the matrix.
*
* @param {Matrix} matrix The other matrix.
*/
isSameSizeAs(matrix: Matrix): boolean;
/**
* Returns the result of adding the argument to the matrix.
*
* @param {Matrix} matrix The matrix to add.
*/
add(matrix: Matrix): Matrix;
/**
* Returns the result of subtracting the argument from the matrix.
*
* @param {Matrix} matrix The matrix to substract.
*/
subtract(matrix: Matrix): Matrix;
/**
* Returns true iff the matrix can multiply the argument from the left.
*
* @param {Matrix} matrix The matrix.
*/
canMultiplyFromLeft(matrix: Matrix): boolean;
/**
* Returns the result of multiplying the matrix from the right by the argument. If the argument is a scalar
* then just multiply all the elements. If the argument is a vector, a vector is returned, which saves you
* having to remember calling col(1) on the result.
*
* @param {number|Matrix} matrix The multiplier.
*/
multiply(matrix: number|Matrix): Matrix;
/**
* Returns the result of multiplying the matrix from the right by the argument. If the argument is a scalar
* then just multiply all the elements. If the argument is a vector, a vector is returned, which saves you
* having to remember calling col(1) on the result.
*
* @param {Vector} vector The multiplier.
*/
multiply(vector: Vector): Vector;
x(matrix: number|Matrix): Matrix;
x(vector: Vector): Vector;
/**
* Returns a submatrix taken from the matrix. Argument order is: start row, start col, nrows, ncols.
* Element selection wraps if the required index is outside the matrix's bounds, so you could use
* this to perform row/column cycling or copy-augmenting.
*
* @param {number} a Starting row index.
* @param {number} b Starting column index.
* @param {number} c Number of rows.
* @param {number} d Number of columns.
*/
minor(a: number, b: number, c: number, d: number): Matrix;
/**
* Returns the transpose of the matrix.
*/
transpose(): Matrix;
/**
* Returns true if the matrix is square.
*/
isSquare(): boolean;
/**
* Returns the (absolute) largest element of the matrix.
*/
max(): number;
/**
* Returns the indeces of the first match found by reading row-by-row from left to right.
*
* @param {number} x The value.
*
* @return {any} The element indeces i.e: { row:1, col:1 }
*/
indexOf(x: number): any;
/**
* If the matrix is square, returns the diagonal elements as a vector; otherwise, returns null.
*/
diagonal(): Vector;
/**
* Make the matrix upper (right) triangular by Gaussian elimination. This method only adds multiples
* of rows to other rows. No rows are scaled up or switched, and the determinant is preserved.
*/
toRightTriangular(): Matrix;
toUpperTriangular(): Matrix;
/**
* Returns the determinant for square matrices.
*/
determinant(): number;
det(): number;
/**
* Returns true if the matrix is singular.
*/
isSingular(): boolean;
/**
* Returns the trace for square matrices.
*/
trace(): number;
tr(): number;
/**
* Returns the rank of the matrix.
*/
rank(): number;
rk(): number;
/**
* Returns the result of attaching the given argument to the right-hand side of the matrix.
*
* @param {Matrix|Vector} matrix The matrix or vector.
*/
augment(matrix: Matrix|Vector): Matrix;
/**
* Returns the inverse (if one exists) using Gauss-Jordan.
*/
inverse(): Matrix;
inv(): Matrix;
/**
* Returns the result of rounding all the elements.
*/
round(): Matrix;
/**
* Returns a copy of the matrix with elements set to the given value if they differ from it
* by less than Sylvester.precision.
*
* @param {number} x The value.
*/
snapTo(x: number): Matrix;
/**
* Returns a string representation of the matrix.
*/
inspect(): string;
/**
* Set the matrix's elements from an array. If the argument passed is a vector, the resulting matrix
* will be a single column.
*
* @param {Array<number>|Array<Array<number>>|Vector|Matrix} matrix The elements.
*/
setElements(matrix: Array<number>|Array<Array<number>>|Vector|Matrix): Matrix;
}
interface Line {
/**
* Gets the 3D vector corresponding to a point on the line.
*/
anchor: Vector;
/**
* Gets a normalized 3D vector representing the line's direction.
*/
direction: Vector;
/**
* Returns true if the argument occupies the same space as the line.
*
* @param {Line} line The other line.
*/
eql(line: Line): boolean;
/**
* Returns a copy of the line.
*/
dup(): Line;
/**
* Returns the result of translating the line by the given vector/array.
*
* @param {Vector|Array<number>} vector The translation vector.
*/
translate(vector: Vector|Array<number>): Line;
/**
* Returns true if the line is parallel to the argument. Here, 'parallel to' means that the argument's
* direction is either parallel or antiparallel to the line's own direction. A line is parallel to a
* plane if the two do not have a unique intersection.
*
* @param {Line|Plane} obj The object.
*/
isParallelTo(obj: Line|Plane): boolean;
/**
* Returns the line's perpendicular distance from the argument, which can be a point, a line or a plane.
*
* @param {Vector|Line|Plane} obj The object.
*/
distanceFrom(obj: Vector|Line|Plane): number;
/**
* Returns true if the argument is a point on the line.
*
* @param {Vector} point The point.
*/
contains(point: Vector): boolean;
/**
* Returns true if the line lies in the given plane.
*
* @param {Plane} plane The plane.
*/
liesIn(plane: Plane): boolean;
/**
* Returns true if the line has a unique point of intersection with the argument.
*
* @param {Line|Plane} obj The object.
*/
intersects(obj: Line|Plane): boolean;
/**
* Returns the unique intersection point with the argument, if one exists.
*
* @param {Line|Plane} obj The object.
*/
intersectionWith(obj: Line|Plane): Vector;
/**
* Returns the point on the line that is closest to the given point or line.
*
* @param {Vector|Line} obj The object.
*/
pointClosestTo(obj: Vector|Line): Vector;
/**
* Returns a copy of the line rotated by t radians about the given line. Works by finding the argument's
* closest point to this line's anchor point (call this C) and rotating the anchor about C. Also rotates
* the line's direction about the argument's. Be careful with this - the rotation axis' direction
* affects the outcome!
*
* @param {number} t The angle in radians.
* @param {Vector|Line} axis The axis.
*/
rotate(t: number, axis: Vector|Line): Line;
/**
* Returns the line's reflection in the given point or line.
*
* @param {Vector|Line|Plane} obj The object.
*/
reflectionIn(obj: Vector|Line|Plane): Line;
/**
* Set the line's anchor point and direction.
*
* @param {Array<number>|Vector} anchor The anchor vector.
* @param {Array<number>|Vector} direction The direction vector.
*/
setVectors(anchor: Array<number>|Vector, direction: Array<number>|Vector): Line;
}
interface Plane {
/**
* Gets the 3D vector corresponding to a point in the plane.
*/
anchor: Vector;
/**
* Gets a normalized 3D vector perpendicular to the plane.
*/
normal: Vector;
/**
* Returns true if the plane occupies the same space as the argument.
*
* @param {Plane} plane The other plane.
*/
eql(plane: Plane): boolean;
/**
* Returns a copy of the plane.
*/
dup(): Plane;
/**
* Returns the result of translating the plane by the given vector.
*
* @param {Array<number>|Vector} vector The translation vector.
*/
translate(vector: Array<number>|Vector): Plane;
/**
* Returns true if the plane is parallel to the argument. Will return true if the planes are equal,
* or if you give a line and it lies in the plane.
*
* @param {Line|Plane} obj The object.
*/
isParallelTo(obj: Line|Plane): boolean;
/**
* Returns true if the receiver is perpendicular to the argument.
*
* @param {Plane} plane The other plane.
*/
isPerpendicularTo(plane: Plane): boolean;
/**
* Returns the plane's distance from the given object (point, line or plane).
*
* @parm {Vector|Line|Plane} obj The object.
*/
distanceFrom(obj: Vector|Line|Plane): number;
/**
* Returns true if the plane contains the given point or line.
*
* @param {Vector|Line} obj The object.
*/
contains(obj: Vector|Line): boolean;
/**
* Returns true if the plane has a unique point/line of intersection with the argument.
*
* @param {Line|Plane} obj The object.
*/
intersects(obj: Line|Plane): boolean;
/**
* Returns the unique intersection with the argument, if one exists.
*
* @param {Line} line The line.
*/
intersectionWith(line: Line): Vector;
/**
* Returns the unique intersection with the argument, if one exists.
*
* @param {Plane} plane The plane.
*/
intersectionWith(plane: Plane): Line;
/**
* Returns the point in the plane closest to the given point.
*
* @param {Vector} point The point.
*/
pointClosestTo(point: Vector): Vector;
/**
* Returns a copy of the plane, rotated by t radians about the given line. See notes on Line#rotate.
*
* @param {number} t The angle in radians.
* @param {Line} axis The line axis.
*/
rotate(t: number, axis: Line): Plane;
/**
* Returns the reflection of the plane in the given point, line or plane.
*
* @param {Vector|Line|Plane} obj The object.
*/
reflectionIn(obj: Vector|Line|Plane): Plane;
/**
* Sets the anchor point and normal to the plane. Normal vector is normalised before storage.
*
* @param {Array<number>|Vector} anchor The anchor vector.
* @param {Array<number>|Vector} normal The normal vector.
*/
setVectors(anchor: Array<number>|Vector, normal: Array<number>|Vector): Plane;
/**
* Sets the anchor point and normal to the plane. The normal is calculated by assuming the three points
* should lie in the same plane. Normal vector is normalised before storage.
*
* @param {Array<number>|Vector} anchor The anchor vector.
* @param {Array<number>|Vector} v1 The first direction vector.
* @param {Array<number>|Vector} v2 The second direction vector.
*/
setVectors(anchor: Array<number>|Vector, v1: Array<number>|Vector, v2: Array<number>|Vector): Plane;
}
declare module Sylvester {
export var version: string;
export var precision: number;
}
declare var Vector: Sylvester.VectorStatic;
declare var Matrix: Sylvester.MatrixStatic;
declare var Line: Sylvester.LineStatic;
declare var Plane: Sylvester.PlaneStatic;
/**
* Constructor function.
*
* @param {Vector|Array<number} elements The elements.
*/
declare function $V(elements: Vector|Array<number>): Vector;
/**
* Constructor function.
*
* @param {Array<number>|Array<Array<number>>|Vector|Matrix} elements The elements.
*/
declare function $M(elements: Array<number>|Array<Array<number>>|Vector | Matrix): Matrix;
/**
* Constructor function.
*
* @param Array<number>|Vector anchor The anchor vector.
* @param Array<number>|Vector direction The direction vector.
*/
declare function $L(anchor: Array<number>|Vector, direction: Array<number>|Vector): Line;
/**
* Constructor function.
*
* @param {Array<number>|Vector} anchor The anchor vector.
* @param {Array<number>|Vector} normal The normal vector.
*/
declare function $P(anchor: Array<number>|Vector, normal: Array<number>|Vector): Plane;
/**
* Constructor function.
*
* @param {Array<number>|Vector} anchor The anchor vector.
* @param {Array<number>|Vector} v1 The first direction vector.
* @param {Array<number>|Vecotr} v2 The second direction vector.
*/
declare function $P(anchor: Array<number>|Vector, v1: Array<number>|Vector, v2: Array<number>|Vector): Plane;