bytev-charts/lib/plugin/three.js/examples/js/modifiers/ExplodeModifier.js

基于echarts和JavaScript及ES6封装的一个可以直接调用的图表组件库，内置主题设计，简单快捷，且支持用户自定义配置； npm 安装方式: npm install bytev-charts 若启动提示还需额外install插件,则运行 npm install @babel/runtime-corejs2 即可;

console.warn("THREE.ExplodeModifier: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/#manual/en/introduction/Installation.");
/**
 * Make all faces use unique vertices
 * so that each face can be separated from others
 */

THREE.ExplodeModifier = function () {};

THREE.ExplodeModifier.prototype.modify = function (geometry) {
  var vertices = [];

  for (var i = 0, il = geometry.faces.length; i < il; i++) {
    var n = vertices.length;
    var face = geometry.faces[i];
    var a = face.a;
    var b = face.b;
    var c = face.c;
    var va = geometry.vertices[a];
    var vb = geometry.vertices[b];
    var vc = geometry.vertices[c];
    vertices.push(va.clone());
    vertices.push(vb.clone());
    vertices.push(vc.clone());
    face.a = n;
    face.b = n + 1;
    face.c = n + 2;
  }

  geometry.vertices = vertices;
};