How to use the LineSegments2 function from three

Find comprehensive JavaScript three.LineSegments2 code examples handpicked from public code repositorys.

three.LineSegments2 is a class in the Three.js library that represents a set of line segments in a 3D scene.

LineSegments2.js

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    return this;


  }


} );
export default THREE.LineSegments2;

+ 20 other calls in file

Line2.js

GitHub: HongpengM/Code_Archive_Public

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const THREE = require('three');
require('./LineSegments2.js');


THREE.Line2 = function ( geometry, material ) {


  THREE.LineSegments2.call( this );


  this.type = 'Line2';


  this.geometry = geometry !== undefined ? geometry : new THREE.LineGeometry();

+ 13 other calls in file

How does three.LineSegments2 work?

The three.LineSegments2 class is a type of three.LineSegments object that represents a set of line segments in a 3D scene in Three.js. It extends the base three.LineSegments class by adding support for line width, line dash patterns, and more. To create a three.LineSegments2 object, you must first create a three.BufferGeometry object that defines the positions and indices of the line segments. You then create a three.LineMaterial object that defines the appearance of the lines, such as their color, thickness, and dash pattern. Finally, you can create the three.LineSegments2 object by passing the buffer geometry and line material as arguments. Here's an example of how to create a three.LineSegments2 object: javascript Copy code {{{{{{{ const geometry = new THREE.BufferGeometry(); const positions = new Float32Array([ 0, 0, 0, // Start of first line segment 1, 1, 1, // End of first line segment 1, 1, 1, // Start of second line segment 2, 2, 2 // End of second line segment ]); geometry.setAttribute('position', new THREE.BufferAttribute(positions, 3)); const material = new THREE.LineMaterial({ color: 0xffffff, linewidth: 2, dashSize: 0.1, gapSize: 0.1 }); const lines = new THREE.LineSegments2(geometry, material); In this example, we first create a three.BufferGeometry object and define the positions of two line segments. We then create a three.LineMaterial object with some basic appearance settings. Finally, we create the three.LineSegments2 object by passing the geometry and material as arguments. Once you've created a three.LineSegments2 object, you can add it to your Three.js scene like any other object, and you can manipulate its properties to adjust its appearance and behavior.

Ai Example

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const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(
  75,
  window.innerWidth / window.innerHeight,
  0.1,
  1000
);
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

const geometry = new THREE.BufferGeometry();
const positions = new Float32Array([
  0,
  0,
  0, // Start of first line segment
  1,
  1,
  1, // End of first line segment
  1,
  1,
  1, // Start of second line segment
  2,
  2,
  2, // End of second line segment
]);
geometry.setAttribute("position", new THREE.BufferAttribute(positions, 3));

const material = new THREE.LineMaterial({
  color: 0xffffff,
  linewidth: 2,
  dashSize: 0.1,
  gapSize: 0.1,
});

const lines = new THREE.LineSegments2(geometry, material);

scene.add(lines);

camera.position.z = 5;

function animate() {
  requestAnimationFrame(animate);
  lines.rotation.y += 0.01;
  renderer.render(scene, camera);
}

animate();

In this example, we create a three.LineSegments2 object with two line segments, a white color, a thickness of 2, and a dashed pattern. We then add the lines to the Three.js scene, set the camera position, and start an animation loop that rotates the lines around the y-axis. When you run this code, you should see two white, dashed lines rotating on the screen.

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