bytev-charts-beta/lib/plugin/three.js/examples/jsm/renderers/webgpu/WebGPUGeometries.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;

import _classCallCheck from "@babel/runtime-corejs2/helpers/classCallCheck";
import _createClass from "@babel/runtime-corejs2/helpers/createClass";
import "core-js/modules/es.function.bind.js";
import _WeakMap from "@babel/runtime-corejs2/core-js/weak-map";

var WebGPUGeometries = /*#__PURE__*/function () {
  function WebGPUGeometries(attributes, info) {
    _classCallCheck(this, WebGPUGeometries);

    this.attributes = attributes;
    this.info = info;
    this.geometries = new _WeakMap();
  }

  _createClass(WebGPUGeometries, [{
    key: "update",
    value: function update(geometry) {
      if (this.geometries.has(geometry) === false) {
        var disposeCallback = onGeometryDispose.bind(this);
        this.geometries.set(geometry, disposeCallback);
        this.info.memory.geometries++;
        geometry.addEventListener('dispose', disposeCallback);
      }

      var geometryAttributes = geometry.attributes;

      for (var name in geometryAttributes) {
        this.attributes.update(geometryAttributes[name]);
      }

      var index = geometry.index;

      if (index !== null) {
        this.attributes.update(index, true);
      }
    }
  }]);

  return WebGPUGeometries;
}();

function onGeometryDispose(event) {
  var geometry = event.target;
  var disposeCallback = this.geometries.get(geometry);
  this.geometries["delete"](geometry);
  this.info.memory.geometries--;
  geometry.removeEventListener('dispose', disposeCallback); //

  var index = geometry.index;
  var geometryAttributes = geometry.attributes;

  if (index !== null) {
    this.attributes.remove(index);
  }

  for (var name in geometryAttributes) {
    this.attributes.remove(geometryAttributes[name]);
  }
}

export default WebGPUGeometries;