Javascript 通过GUI防止光线投射拾取的三个js

我需要通过单击对象和弹出的非模态对话框来拾取对象，以显示有关对象的信息。它可以正常工作，但是如果用户单击任何GUI项目，包括对话框，并且后面有一个对象，则会选择三个js对象，从而更改弹出窗口中的信息

以下是片段

document.addEventListener( 'mousedown', onDocumentMouseDown, false );

jQuery对话框生成器：

function createDialog(title, text, top) {
      return $("<div class='dialog' title='" + title + "'><p id='bodyText'> " + text + "</p></div>")
      .dialog({ position: { my: ("right" + 0 + "top+" + top), at: "right top" },
      close : setDialogNull, });
}

其他GUI元素是使用dat.GUI创建的

---

当搜索这个问题时，大多数结果都是关于Unity的，作为一名经验丰富的开发人员，我真的不知道如何适应它们。

如果没有更多的代码来了解您的设置和事件，就很难知道解决方案是什么。我会给保存three.js的元素一个特定ID，在onDocumentMouseDown中，检查它是否是活动元素。根据您的设置，您可能需要检查document.activeElement.parentElement.id或其他内容

function onDocumentMouseDown( e ) {
    if(document.activeElement.id != "myThreeJSElementID"){
        //some other element has been clicked so let's return with nothing:
        return;
    }
    e.preventDefault();
    console.log(dialog);
    var mouseVector = new THREE.Vector3();
    mouseVector.x = 2 * (e.clientX / window.innerWidth ) - 1;
    mouseVector.y = 1 - 2 * ( e.clientY / window.innerHeight );
    var raycaster = new THREE.Raycaster();
    raycaster.setFromCamera( mouseVector, camera );
    var intersects = raycaster.intersectObjects(objectCollection );

    if (intersects.length > 0) {
        var selectedObject = intersects[0];
        console.log("Intersected object", intersects[0]);
        selectedObject.object.material = (selectedObject.object.material.wireframe) ? selectedBoxMaterial : unselectedBoxMaterial;

        var text = intersects[0].distance;
        var title = "Shelf info";

        if (dialog == false) {
            createDialog(title, text, offset);
            offset = offset - 50;
            console.log(offset);
            dialog = true;

            console.log(dialog);
        }   

        if (dialog == true) { 
            {jQuery("#bodyText").text(text);
        }
    }   
}

更理想的情况是，您应该为three.js容器设置一个特定事件，而不是使用全局文档事件，但是现在应该可以使用异常。许多代码示例使用document.addEventListener是出于简单性，而不是最佳实践

function onDocumentMouseDown( e ) {
    if(document.activeElement.id != "myThreeJSElementID"){
        //some other element has been clicked so let's return with nothing:
        return;
    }
    e.preventDefault();
    console.log(dialog);
    var mouseVector = new THREE.Vector3();
    mouseVector.x = 2 * (e.clientX / window.innerWidth ) - 1;
    mouseVector.y = 1 - 2 * ( e.clientY / window.innerHeight );
    var raycaster = new THREE.Raycaster();
    raycaster.setFromCamera( mouseVector, camera );
    var intersects = raycaster.intersectObjects(objectCollection );

    if (intersects.length > 0) {
        var selectedObject = intersects[0];
        console.log("Intersected object", intersects[0]);
        selectedObject.object.material = (selectedObject.object.material.wireframe) ? selectedBoxMaterial : unselectedBoxMaterial;

        var text = intersects[0].distance;
        var title = "Shelf info";

        if (dialog == false) {
            createDialog(title, text, offset);
            offset = offset - 50;
            console.log(offset);
            dialog = true;

            console.log(dialog);
        }   

        if (dialog == true) { 
            {jQuery("#bodyText").text(text);
        }
    }   
}