threejs 获取场景中某一个平面图，是否能够实现？

Question

需求：最近在研究threejs，因为一个物件是由多个模型组合而成，但是想着用户在旋转3d模型的时候，是否能够在当前旋转角度截取一个平面图，就类似手机的截屏，不知道在软件技术方面能否实现？

Answer 1

threejs本身就是绘制一个canvas，然而canvas本身就可以获取平面图，&nbsp;function drawImg(){&nbsp; &nbsp; &nbsp; &nbsp; var mycanvas = document.getElementById("canvas");&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; var image&nbsp; &nbsp; = mycanvas.toDataURL("image/png");&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; var w=window.open('about:blank','image from canvas');&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; w.document.write("<img src='"+image+"' alt='from canvas'/>");&nbsp;&nbsp; &nbsp; }&nbsp; &nbsp; $('#saveImg').click(function(){&nbsp; &nbsp; &nbsp; &nbsp; drawImg();&nbsp; &nbsp; })