问题描述
我过去曾玩过 ThreeJS，现在正在一个新项目中尝试在全景中设置热点.我记得使用相机推车:http://davidpaulrosser.github.io/threejs-camera-dolly/ 以获得相机位置的良好视觉效果，但是否有人想出一个可以让您获得 xyz 坐标的方法，例如在此 ThreeJS 示例 http://threejs.org/examples/css3d_panorama.html 你想在路上放置一个热点.
I have played with ThreeJS a little in the past and am on a new project trying to setup hotspots in a panoramic. I remember using the camera dolly: http://davidpaulrosser.github.io/threejs-camera-dolly/ to get a nice visual of camera locations, but has anyone worked out one that would let you get the xyz coordinates if for instance on this ThreeJS example http://threejs.org/examples/css3d_panorama.html you wanted to place a hotspot on the road.
它可以使用与相机小车使用的 dat gui 相同的东西，或者是一个你拖动的球来报告它的位置.
It could use the same thing as the dat gui that the camera dolly uses, or be a ball you drag around that reports it's location.
推荐答案
所以您只是希望能够将全景图像转换为 3d 位置，以便您可以在那里保存一些内容并稍后进行渲染?像这样的东西会给你你需要的位置..
So you just want to be able to convert from a panoramic image to 3d location, so you can save something there and render it later? Something like this will give you the location you need..
https://jsfiddle.net/mz7Lv9dt/1( 修正了一个错字)
您可能感兴趣的部分在这里:
The part that probably interests you is here:
var raycaster = new THREE.Raycaster();
raycaster.setFromCamera( uv, cam );
return raycaster.intersectObjects( objects );
拖动绿球以获取其位置(始终设置为单位长度)
Drag the green ball around to get its location (always set to unit length of one)
如果我完全回答错了，请告诉我.
If I totally answered wrong let me know.
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