Curve.toJSON()

The Curve.toJSON() method in Three.js is used to serialize a curve object to a JSON format. This can be useful for saving or transmitting a curve data, storing it in a database, or sharing it with other applications.

Syntax

JSON.stringify(curve.toJSON())

The Curve.toJSON() method returns a JSON representation of the curve object.

Parameters

The Curve.toJSON() method doesn't take any parameters.

Description

The Curve.toJSON() method returns a JSON object that represents the curve. The JSON object includes all the data needed to recreate the curve object.

The JSON object has the following properties:

• "metadata": A metadata object that includes the version of Three.js used to create the JSON object.
• "type": The type of curve object (i.e., "Curve").
• "points": An array of points that make up the curve.
• "closed": A Boolean value that indicates whether the curve is closed or not.

The Curve.toJSON() method can be used to serialize any curve object, including LineCurve, QuadraticBezierCurve, CubicBezierCurve, EllipseCurve, ArcCurve and CatmullRomCurve3.

Example

var lineCurve = new THREE.LineCurve(
  new THREE.Vector2(0, 0),
  new THREE.Vector2(1, 1)
);

var json = JSON.stringify(lineCurve.toJSON());

In this example, lineCurve is a LineCurve object with two points. The Curve.toJSON() method is used to serialize the curve to a JSON format, which is stored in the json variable.