Trackballcontrols和gui无法一起工作

时间：2018-05-04 16:00:58

标签： javascript three.js

当我点击它们并且我已经看到其他答案时，gui一起改变了，但是我不知道我应该把听众放在哪里，我试图将监听器放在render（）中，但是仍然没有那么如何修复我的代码呢？这个编码与我的毕业有关。

这是我的代码：

<!DOCTYPE html>
<html>
<meta charset="utf-8">

<head>
  <title>map draw</title>
  <!-- Original:
        	<script type="text/javascript" src="../build/three.js"></script>
        	<script type="text/javascript" src="../examples/js/libs/dat.gui.js"></script>
        	<script type="text/javascript" src="../examples/js/libs/stats.min.js"></script>
        	<script type="text/javascript" src="../examples/js/controls/TrackballControls.js"></script>
          -->
  <!-- Added by TheJim01 -->
  <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/92/three.js"></script>
  <script src="https://threejs.org/examples/js/libs/dat.gui.min.js"></script>
  <script src="https://threejs.org/examples/js/libs/stats.min.js"></script>
  <script src="https://threejs.org/examples/js/controls/TrackballControls.js"></script>
  <!-- End TheJim01 additions -->
</head>

<body>
  <div id="Stats-output"></div>
  <div id="camera"></div>
  <div id="airport"></div>
  <script type="text/javascript">
    function init() {
      var controls = new Array(cube_number);
      console.log(controls);
      var cubes = new Array(cube_number);
      var guicube = new Array(cube_number);
      var cube_number = 4; //change this word,you can change the number of cubes
      var stats = initStats()
      var scene = new THREE.Scene();
      var camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 0.1, 1000);
      camera.position.x = 10;
      camera.position.y = 10;
      camera.position.z = 30;
      camera.lookAt(scene.position);
      var trackballControls = new THREE.TrackballControls(camera); //配置控制器
      var clock = new THREE.Clock();
      trackballControls.rotateSpeed = 1.0;
      trackballControls.zoomSpeed = 1.0;
      trackballControls.panSpeed = 1.0;
      trackballControls.domElement = document.querySelector('#camera')
      var renderer = new THREE.WebGLRenderer();
      renderer.setClearColor(new THREE.Color(0x000000)); //背景颜色设置
      renderer.setSize(window.innerWidth, window.innerHeight);
      var axes = new THREE.AxisHelper(60);
      scene.add(axes);
      for (var i = 0; i < cube_number; i++) {
        controls[i] = new function() {
          this.PositionX = 0;
          this.PositionY = 0;
          this.PositionZ = 0;
          this.ScaleX = 1;
          this.ScaleY = 1;
          this.ScaleZ = 1;
          this.RotationX = 0;
          this.RotationY = 0;
          this.RotationZ = 0;
        }
      }
      var planeGeometry = new THREE.PlaneGeometry(65, 65);
      var planeMaterial = new THREE.MeshBasicMaterial({
        color: 0x808080
      });
      var plane = new THREE.Mesh(planeGeometry, planeMaterial);
      plane.rotation.x = -0.5 * Math.PI;
      plane.position.x = 0;
      plane.position.y = 0;
      plane.position.z = 0;
      scene.add(plane);
      for (var i = 0; i < cube_number; i++) {
        var cubeGeometry = new THREE.BoxGeometry(6, 6, 6);
        var cubeMaterial = new THREE.MeshBasicMaterial({
          color: Math.random() * 0xFFFFFF,
          wireframe: false
        });
        var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
        cube.position.x = 2 * i;
        cube.position.y = 0;
        cube.position.z = 0;
        cube.scale.set(1, 1, 1);
        cube.name = "cube-" + i;
        scene.add(cube);
      }
      //render the scene
      render();
      document.getElementById("airport").appendChild(renderer.domElement);

      function render() {
        for (i = 0; i < cube_number; i++) {
          stats.update();
          cubes[i] = scene.getObjectByName("cube-" + i);
          cubes[i].position.x = controls[i].PositionX;
          cubes[i].position.y = controls[i].PositionY;
          cubes[i].position.z = controls[i].PositionZ;
          cubes[i].scale.set(controls[i].ScaleX, controls[i].ScaleY, controls[i].ScaleZ);
          cubes[i].rotation.x = controls[i].RotationX;
          cubes[i].rotation.y = controls[i].RotationY;
          cubes[i].rotation.z = controls[i].RotationZ;
        }
        requestAnimationFrame(render);
        renderer.render(scene, camera);
        var delta = clock.getDelta();
        trackballControls.update(delta);
      }
      //here is the biggest problem
      var gui = new dat.GUI();
      for (i = 0; i < cube_number; i++) {
        guicube[i] = gui.addFolder(cubes[i].name);
        guicube[i].add(controls[i], 'PositionX', -20, 20);
        guicube[i].add(controls[i], 'PositionY', -8, 40);
        guicube[i].add(controls[i], 'PositionZ', -20, 20);
        guicube[i].add(controls[i], 'ScaleX', 1, 8);
        guicube[i].add(controls[i], 'ScaleY', 1, 8);
        guicube[i].add(controls[i], 'ScaleZ', 1, 8);
        guicube[i].add(controls[i], 'RotationX', -4, 4);
        guicube[i].add(controls[i], 'RotationY', -4, 4);
        guicube[i].add(controls[i], 'RotationZ', -4, 4);
      }
    }

    function initStats() {
      var stats = new Stats();
      stats.setMode(0);
      stats.domElement.style.position = 'absolute';
      stats.domElement.style.left = '0px';
      stats.domElement.style.top = '0px';
      document.getElementById("Stats-output").appendChild(stats.domElement);
      return stats;
    }
    window.onload = init();
  </script>
  //改动cube_number参数，可以改变添加立方体的个数
</body>

</html>

1 个答案:

答案 0 :(得分：0)

您在错误的地方宣布trackballControls的domElement。它必须作为构造函数的第二个参数传递。另外，请确保您传递与renderer相同的domElement，这样您就不会遇到z-indexing问题。

<强>错误 

var trackballControls = new THREE.TrackballControls(camera);
trackballControls.domElement = document.querySelector('#camera'); // too late to declare here
...
document.getElementById("airport").appendChild(renderer.domElement); // Will lead to stacking issues

<强>正确： 

var trackballControls = new THREE.TrackballControls(camera, document.querySelector('#airport'));
...
document.getElementById("airport").appendChild(renderer.domElement); // Same element as trackball

<强>另外

确保您在stats.update();循环之外调用for()，否则每帧会运行4次，导致错误的240 FPS。

<!DOCTYPE html>
<html>
<meta charset="utf-8">

<head>
  <title>map draw</title>
  <!-- Added by TheJim01 -->
  <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/92/three.js"></script>
  <script src="https://threejs.org/examples/js/libs/dat.gui.min.js"></script>
  <script src="https://threejs.org/examples/js/libs/stats.min.js"></script>
  <script src="https://threejs.org/examples/js/controls/TrackballControls.js"></script>
  <!-- End TheJim01 additions -->
</head>

<body>
  <div id="Stats-output"></div>
  <div id="airport"></div>
  <script type="text/javascript">
    function init() {
      var controls = new Array(cube_number);
      console.log(controls);
      var cubes = new Array(cube_number);
      var guicube = new Array(cube_number);
      var cube_number = 4; //change this word,you can change the number of cubes
      var stats = initStats()
      var scene = new THREE.Scene();
      var camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 0.1, 1000);
      camera.position.x = 10;
      camera.position.y = 10;
      camera.position.z = 30;
      camera.lookAt(scene.position);
      var trackballControls = new THREE.TrackballControls(camera, document.querySelector('#airport')); // pass the #airport DIV as its second parameter.
      var clock = new THREE.Clock();
      trackballControls.rotateSpeed = 1.0;
      trackballControls.zoomSpeed = 1.0;
      trackballControls.panSpeed = 1.0;
      var renderer = new THREE.WebGLRenderer();
      renderer.setClearColor(new THREE.Color(0x000000)); //背景颜色设置
      renderer.setSize(window.innerWidth, window.innerHeight);
      var axes = new THREE.AxisHelper(60);
      scene.add(axes);
      for (var i = 0; i < cube_number; i++) {
        controls[i] = new function() {
          this.PositionX = 0;
          this.PositionY = 0;
          this.PositionZ = 0;
          this.ScaleX = 1;
          this.ScaleY = 1;
          this.ScaleZ = 1;
          this.RotationX = 0;
          this.RotationY = 0;
          this.RotationZ = 0;
        }
      }
      var planeGeometry = new THREE.PlaneGeometry(65, 65);
      var planeMaterial = new THREE.MeshBasicMaterial({
        color: 0x808080
      });
      var plane = new THREE.Mesh(planeGeometry, planeMaterial);
      plane.rotation.x = -0.5 * Math.PI;
      plane.position.x = 0;
      plane.position.y = 0;
      plane.position.z = 0;
      scene.add(plane);
      for (var i = 0; i < cube_number; i++) {
        var cubeGeometry = new THREE.BoxGeometry(6, 6, 6);
        var cubeMaterial = new THREE.MeshBasicMaterial({
          color: Math.random() * 0xFFFFFF,
          wireframe: false
        });
        var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
        cube.position.x = 2 * i;
        cube.position.y = 0;
        cube.position.z = 0;
        cube.scale.set(1, 1, 1);
        cube.name = "cube-" + i;
        scene.add(cube);
      }
      //render the scene
      render();
      document.getElementById("airport").appendChild(renderer.domElement);

      function render() {
        stats.update();
        for (i = 0; i < cube_number; i++) {
          cubes[i] = scene.getObjectByName("cube-" + i);
          cubes[i].position.x = controls[i].PositionX;
          cubes[i].position.y = controls[i].PositionY;
          cubes[i].position.z = controls[i].PositionZ;
          cubes[i].scale.set(controls[i].ScaleX, controls[i].ScaleY, controls[i].ScaleZ);
          cubes[i].rotation.x = controls[i].RotationX;
          cubes[i].rotation.y = controls[i].RotationY;
          cubes[i].rotation.z = controls[i].RotationZ;
        }
        requestAnimationFrame(render);
        renderer.render(scene, camera);
        var delta = clock.getDelta();
        trackballControls.update(delta);
      }
      //here is the biggest problem
      var gui = new dat.GUI();
      for (i = 0; i < cube_number; i++) {
        guicube[i] = gui.addFolder(cubes[i].name);
        guicube[i].add(controls[i], 'PositionX', -20, 20);
        guicube[i].add(controls[i], 'PositionY', -8, 40);
        guicube[i].add(controls[i], 'PositionZ', -20, 20);
        guicube[i].add(controls[i], 'ScaleX', 1, 8);
        guicube[i].add(controls[i], 'ScaleY', 1, 8);
        guicube[i].add(controls[i], 'ScaleZ', 1, 8);
        guicube[i].add(controls[i], 'RotationX', -4, 4);
        guicube[i].add(controls[i], 'RotationY', -4, 4);
        guicube[i].add(controls[i], 'RotationZ', -4, 4);
      }
    }

    function initStats() {
      var stats = new Stats();
      stats.setMode(0);
      stats.domElement.style.position = 'absolute';
      stats.domElement.style.left = '0px';
      stats.domElement.style.top = '0px';
      document.getElementById("Stats-output").appendChild(stats.domElement);
      return stats;
    }
    window.onload = init();
  </script>
  //改动cube_number参数，可以改变添加立方体的个数
</body>

</html>

相关问题
最新问题