为什么我不能悬停并单击 Threejs 转换工具？

Question

我正在尝试制作一个工具来移动我创建的自定义模型。我做的第一步是显示转换工具并执行更改操作。但我无法悬停或单击转换工具。我的代码中是否遗漏了什么？

  activateTheTransformTool() {    
    let bbox = this.viewer.model.getBoundingBox();    
    this.viewer.impl.createOverlayScene("Dotty.Viewing.Tool.TransformTool");

    this.transformControlTx = new THREE.TransformControls(
      this.viewer.impl.camera,
      this.viewer.impl.canvas,
      "translate"
    );

    this.transformControlTx.setSize(bbox.getBoundingSphere().radius * 5);

    this.transformControlTx.visible = false;

    this.viewer.impl.addOverlay(
      "Dotty.Viewing.Tool.TransformTool",
      this.transformControlTx
    );

    this.transformMesh = this.createTransformMesh();

    this.transformControlTx.attach(this.transformMesh);

    this.onItemSelected();
  }

  handleMouseMove(event) {
    if (this.transformControlTx) {
      if (this.isDragging) {
        console.log(this.transformControlTx);
        if (this.transformControlTx.onPointerMove(event)) {
          return true;
        }

        return false;
      }

      if (this.transformControlTx.onPointerHover(event)) return true;
    }

    //return _transRotControl.onPointerHover(event);
  }

onTxChange() {
   console.log("onTx change");
   this.viewer.impl.sceneUpdated(true);
}

onItemSelected() {
if (this.hitPoint) {
  this.transformControlTx.visible = true;

  this.transformControlTx.setPosition(this.hitPoint);

  this.transformControlTx.addEventListener("change", this.onTxChange);

      this.hitPoint = null;
    } else {
       this.transformControlTx.visible = false;
    }
  }

Answer 1

您共享的代码似乎没问题（可能取自此 TransformationExtension，对吗？）但由于它只是实现的一部分，所以很难说出哪里出了问题。您是否可能在控制台中看到任何错误或警告？

顺便说一句。我最近在我的一个代码示例中实现了类似的转换 tool/extension：https://github.com/petrbroz/forge-simple-viewer-nodejs/tree/experiment/xform-tool. You should be able to drop the TransformToolExtension.js into your Forge app, include the extension's ID when initializing the viewer (like I do here)，一切顺利。

为什么我不能悬停并单击 Threejs 转换工具？

Why can't I hover and click the Threejs transformation tools?

autodesk-forge

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