How to use the Line2 function from three

Find comprehensive JavaScript three.Line2 code examples handpicked from public code repositorys.

Three.Line2 is a class in the Three.js library that represents a 2D line object in 3D space.

line3DModel.js

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  linewidth: 5, // in pixels
  vertexColors: THREE.VertexColors,
  // resolution:  // to be set by renderer, eventually
  dashed: false
})
let line = new THREE.Line2(geometry, matLine)
line.computeLineDistances()
line.scale.set(1, 1, 1)

this.length = points.length

+ 3 other calls in file

Line2.js

GitHub: HongpengM/Code_Archive_Public

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    return this;


  }


} );
export default THREE.Line2;

+ 6 other calls in file

How does three.Line2 work?

Sure! Three.Line2 is a class in the Three.js library that represents a 2D line object in 3D space. When you create a Line2 object, you can pass in a Geometry object and a Material object as arguments. The Geometry object specifies the vertices of the line, and the Material object specifies how the line should be rendered. The Line2 class inherits from the Line class and adds additional features specifically for 2D lines. The Line2 object has a computeLineDistances() method that computes an array of distances between each pair of vertices in the line. It also has a setColors() method that allows you to set colors for each vertex in the line. You can add a Line2 object to a Scene object using the add() method. Once the line is added to the scene, it will be rendered based on the specified Material object. You can also transform the Line2 object using the standard transformation methods, such as translate(), rotateX(), rotateY(), and rotateZ().

Ai Example

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const scene = new THREE.Scene();

const geometry = new THREE.Geometry();
geometry.vertices.push(new THREE.Vector3(-10, 0, 0));
geometry.vertices.push(new THREE.Vector3(0, 10, 0));
geometry.vertices.push(new THREE.Vector3(10, 0, 0));

const material = new THREE.LineBasicMaterial({ color: 0xff0000 });

const line = new THREE.Line2(geometry, material);
line.computeLineDistances();
line.setColors(0x0000ff, 0x0000ff, 0x0000ff);

scene.add(line);

In this example, we first create a Scene object. We then create a Geometry object and add three Vector3 vertices to it to define the points of the line in 3D space. We also create a LineBasicMaterial object to specify how the line should be rendered, in this case with a solid red color. We then create a Line2 object by passing in the Geometry and Material objects. We call the computeLineDistances() method to compute an array of distances between each pair of vertices in the line, and the setColors() method to set the color of each vertex in the line to blue. Finally, we add the Line2 object to the Scene object using the add() method. When the scene is rendered, the line will be drawn from the first vertex to the second vertex, then from the second vertex to the third vertex, with a solid red color and blue vertex colors.

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