我想通过html创建一个X3D arch，如下所示：http://x3dgraphics.com/examples/X3dForAdvancedModeling/3DPrinting/UavBeehiveIndex.html
由于我发现圆柱形状不足以形成拱形，我无法通过将其固定值设置为“假”来定义拱的厚度。然后我发现人们使用IndexedFaceSet coordIndex来创建该形状。但是，当形状变得非常复杂时，他们如何计算coordIndex？作为一个例子的形状，coordIndex真的很长，我不确定是否有任何生成器可以帮助我们达到这个目的。
感谢您的帮助。
答案 0 :(得分：1)
Large IndexedFaceSet definitions are indeed challenging to get correct unless you are very diligent. Many modelers use a general 3D modeling tool to create complex shapes, then export to VRML or X3D meshes for publication.
Of note: the 'solid' field describes whether polygon geometry is rendered on one side or both sides. solid='true' means solid like a brick, no internal structure, save rendering effort by just showing one side. solid='false' ensures that both sides of a polygonal mesh are rendered, which is especially helpful is the normal orientation is opposite of what is expected. Models with solid='true' are more efficient but might easily be invisible.
There are some good X3D arch models and prototypes online from a student project. Test reports welcome, I can make any corrections or improvements needed.
Incidentally the UAV Beehive example has moved and is now at