@vtx/cs-map/lib/map/material/AroundPoint.js

React components for Vortex

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;
var _cesium = require("cesium");
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var AroundPoint = exports["default"] = /*#__PURE__*/function () {
  function AroundPoint(_ref) {
    var viewer = _ref.viewer,
      amount = _ref.amount,
      position = _ref.position;
    _classCallCheck(this, AroundPoint);
    this._viewer = viewer;
    this._amount = amount;
    this._position = position;
  }
  return _createClass(AroundPoint, [{
    key: "_bindEvent",
    value: function _bindEvent() {
      this._viewer.clock.onTick.addEventListener(this._aroundPoint, this);
    }
  }, {
    key: "_unbindEvent",
    value: function _unbindEvent() {
      this._viewer.camera.lookAtTransform(_cesium.Matrix4.IDENTITY);
      this._viewer.clock.onTick.removeEventListener(this._aroundPoint, this);
    }
  }, {
    key: "start",
    value: function start() {
      this._viewer.clock.shouldAnimate = true;
      this._unbindEvent();
      this._bindEvent();
      return this;
    }
  }, {
    key: "stop",
    value: function stop() {
      this._unbindEvent();
      return this;
    }

    // 相机绕点旋转函数
  }, {
    key: "_aroundPoint",
    value: function _aroundPoint() {
      var heading = this._viewer.camera.heading;
      var pitch = this._viewer.camera.pitch;
      heading += _cesium.Math.toRadians(this._amount);
      if (heading >= Math.PI * 2 || heading <= -Math.PI * 2) {
        heading = 0;
      }
      this._viewer.camera.lookAt(this._position, new _cesium.HeadingPitchRange(heading, pitch, 5000.0));
    }
  }]);
}();
//# sourceMappingURL=AroundPoint.js.map