Quad

An object representing a quadrilateral or QuadPoint.

In TypeScript the Quad type is defined as follows:

type Quad = [ number, number, number, number number, number, number, number ]

Constructors

class Quad()

This is an interface, not a concrete class!

Quads are not represented by a class; they are just plain arrays of eight numbers.

Static properties

Quad.empty

only mutool run

A quad whose coordinates are such that it is categorized as empty.

Quad.invalid

only mutool run

A quad whose coordinates are such that it is categorized as invalid.

Quad.infinite

only mutool run

A quad whose coordinates are such that it is categorized as infinite.

Static methods

Quad.isEmpty(quad)

only mutool run

Returns a boolean indicating if the quad is empty or not.

Arguments:

  • quad (Quad) – Rectangle to evaluate.

Returns:

boolean

var isEmpty = mupdf.Quad.isEmpty([0, 0, 0, 0]) // true
var isEmpty = mupdf.Quad.isEmpty([0, 0, 100, 100]) // false
Quad.isValid(quad)

only mutool run

Returns a boolean indicating if the quad is valid or not.

Arguments:

  • quad (Quad) – Rectangle to evaluate.

Returns:

boolean

var isValid = mupdf.Quad.isValid([0, 0, 100, 100]) // true
var isValid = mupdf.Quad.isValid([0, 0, -100, 100]) // false
Quad.isInfinite(quad)

only mutool run

Returns a boolean indicating if the quad is infinite or not.

Arguments:

  • quad (Quad) – Rectangle to evaluate.

Returns:

boolean

var isInfinite = mupdf.Quad.isInfinite([0x80000000, 0x80000000, 0x7fffff80, 0x7fffff80]) //true
var isInfinite = mupdf.Quad.isInfinite([0, 0, 100, 100]) // false
Quad.transform(quad, matrix)

only mutool run

Transforms the supplied quad by the given transformation matrix.

Transforming an invalid, empty or infinite quad results in the supplied quad being returned without change.

Arguments:

  • quad (Quad) – Quad to transform.

  • matrix (Matrix) – Matrix describing transformation to perform.

Returns:

Quad

var m = mupdf.Quad.transform([0, 0, 100, 100], [1, 0.5, 1, 1, 1, 1])
Quad.isPointInside(quad, point)

only mutool run

Return whether the point is inside the quad.

:returns boolean

var inside = mupdf.Rect.isPointInside([0, 0, 100, 100], [50, 50])
Quad.quadFromRect(rect)

only mutool run

Create a Quad that maps exactly to the coordinate of rectangle.

Arguments:
Returns:

Quad