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当我使用 Leap Motion 进行抓取手势时,我试图在 X3DOM 中模拟鼠标点击。例如,我有两个立方体,当我对它进行抓取手势时,我想选择红色立方体。changeColor() 是 click 函数的事件处理程序,它将立方体的颜色从红色变为绿色,反之亦然(使用虚拟手,如本例所示:http ://examples.x3dom.org/Demos/ClassroomVR/classroom -rift-leap-webvr.html )

现在,抓取手势确实会触发点击事件,但无论何时/无论我在何处进行抓取,都会触发它。我希望它仅在我对该特定红色立方体执行抓取手势时触发。任何建议将不胜感激。谢谢。

<x3d>
  <scene>
               <Transform id = "boxTrafo1" DEF="boxTrafo1" translation="-1 0 0">
                    <Shape id = "boxShape1" DEF="boxShape1" onclick = "changeColor(event);">
                        <Appearance DEF="boxApp1">
                              <Material id ="boxMat1" diffuseColor="1 0 0" specularColor=".5 .5 .5" ></Material>
                         </Appearance>
                         <Box  size="4.5 4.5 4.5"></Box>
                    </Shape>
               </Transform>


                <Transform translation='-11 0 3' id="boxTrafo2" >
                      <Shape id = "boxShape2">
                            <Appearance id = "boxApp2">
                                 <Material id ="boxMat2" diffuseColor='0 1 0' specularColor='.5 .5 .5'></Material>  
                             </Appearance>
                             <Box  size="4.5 4.5 4.5"></Box>
                        </Shape>
                 </Transform>

</scene>
</x3d>

<script>
var controller = Leap.loop({enableGestures: true}, function (frame)
        {
            if (frame.hands.length)
            {
                var hand_frame = frame.hands[0];
                if (hand_frame.grabStrength === 1) {
                  var box = document.getElementById("boxShape1");
                  box.click();
                }
            }
});

 function changeColor(event) {

            if (document.getElementById("boxMat1").getAttribute("diffuseColor") === "1 0 0")
                document.getElementById("boxMat1").setAttribute("diffuseColor", "0 1 0");
            else
                document.getElementById("boxMat1").setAttribute("diffuseColor", "1 0 0");
        }
</script>
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1 回答 1

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我不知道 Leap Motion,但有一个https://developer.leapmotion.com/documentation/javascript/api/Leap.Hand.html#Hand.palmPosition您可能想与https://一起使用github.com/x3dom/x3dom/blob/1.7.1/src/Runtime.js#L328这会给你一个pickObject,你必须匹配你的盒子并触发点击。

于 2016-02-02T10:04:19.840 回答