将three.js网格作为OBJ或STL导出 [英] Exporting a three.js mesh as an OBJ or STL

问题描述

我想为一个参数化的Three.js网格对象创建一个导出为OBJ或STL链接。
与 http://www.3dtin.com 上的导出选项一样

$ b $

$ p

解决方案

要使用.obj格式的网格，我使用这个简单的函数：

  THREE.saveGeometryToObj = function（geometry）{
 var s =''; 
 for（i = 0; i< geometry.vertices.length; i ++）{
 s + ='v'+（geometry.vertices [i] .x）+''+ 
 geometry.vertices [i] .y +''+ 
 geometry.vertices [i] .z +'\\\
'; 
} 
 
 for（i = 0; i  
 s + ='f'+（geometry.faces [ i] .a + 1）+''+ 
（geometry.faces [i] .b + 1）+''+ 
（geometry.faces [i] .c + 1）; 
 
 if（geometry.faces [i] .d！== undefined）{
 s + =''+（geometry.faces [i] .d + 1）; 
} 
 s + ='\\\
'; 
} 
 
 return s; 
} 
  

I would like to create an export as OBJ or STL link for a parametric Three.js mesh object. Just like the export option on http://www.3dtin.com

Any advice would be appreciated.

解决方案

To get mesh in .obj format I use this simple function:

THREE.saveGeometryToObj = function (geometry) {
var s = '';
for (i = 0; i < geometry.vertices.length; i++) {
    s+= 'v '+(geometry.vertices[i].x) + ' ' +
    geometry.vertices[i].y + ' '+
    geometry.vertices[i].z + '\n';
}

for (i = 0; i < geometry.faces.length; i++) {

    s+= 'f '+ (geometry.faces[i].a+1) + ' ' +
    (geometry.faces[i].b+1) + ' '+
    (geometry.faces[i].c+1);

    if (geometry.faces[i].d !== undefined) {
        s+= ' '+ (geometry.faces[i].d+1);
    }
    s+= '\n';
}

return s;
}

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