is-collinear

function isCollinear(ps: number[][]): boolean

Defined in global-properties/classification/is-collinear.ts:22

Returns true if the given bezier curve has all control points collinear, false otherwise.

• if you need to know whether a given bezier curve can be converted to an order 1 bezier curve (a line) such that the same (x,y) point is returned for the same t value then use e.g. isQuadReallyLine instead.

• exact not susceptible to floating point round-off

Note!

Green circles are draggable!

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Parameters:

Name	Type	Description
ps	number[][]	an order 0,1,2 or 3 bezier curve given as an array of its control points, e.g. [[1,2],[3,4],[5,6],[7,8]]

---

function isHorizontal(ps: number[][]): boolean

Defined in global-properties/classification/is-collinear.ts:56

Returns true if the given bezier curve has all control points the same y value (possibly self-overlapping), false otherwise.

Parameters:

Name	Type	Description
ps	number[][]	An order 0, 1, 2 or 3 bezier curve.

---

function isVertical(ps: number[][]): boolean

Defined in global-properties/classification/is-collinear.ts:76

Returns true if the given bezier curve has all control points the same x value (possibly self-overlapping), false otherwise.

Parameters:

Name	Type	Description
ps	number[][]	An order 0, 1, 2 or 3 bezier curve.