网格物件
建立一个网格物件或从 NURBS 曲面生成一个网格物件。
有很多模型师使用多边形网格表现用于渲染、动画、立体光刻、可视化、有限元分析等的几何图形,通过 Mesh 指令可以将 NURBS 几何图形转换为可以导出的多边形网格。除此以外,还有一些网格生成指令,如 MeshSphere, MeshBox, MeshCylinder 等指令可以生成网格物件。
没有什么简单的方法能把网格模型转为 NURBS 曲面模型,因为定义这两种几何图形的算法和记录的信息是完全不同的,但是 Rhino 提供了很多指令可以在网格上绘制曲线、提取网格顶点、从网格上获取其他信息等,这些功能可以辅助您通过网格模型建立 NURBS 曲面模型。
建立网格物件
直接建立网格物件。

3DFace
Creates mesh or SubD faces that can be standalone or added to an existing mesh or SubD.

MeshBox
Draw a mesh box.

MeshCone
Creates a mesh cone.

MeshCylinder
Draw a mesh cylinder.

MeshEllipsoid
Draw a mesh ellipsoid.

MeshFromLines
Create a mesh from intersecting lines.

MeshPlane
Draw a rectangular mesh plane.

MeshPolyline
Create a mesh from a closed polyline.

MeshSphere
Draw a mesh sphere.

MeshTruncatedCone
Draw a mesh truncated cone.

MeshTorus
Draw a mesh torus.
从其他物件建立网格
基于曲线和曲面生成网格。

ApplyMesh
Fit a mesh that matches a source mesh onto a surface.

ApplyMeshUVN
Wrap meshes and points onto a surface.

Mesh
Create a mesh from a NURBS surface or polysurface.

MeshPatch
Create a mesh from curves and points.

MeshPolyline
Create a mesh from a closed polyline.

PlanarMesh
Create a planar mesh from closed curves.

QuadRemesh
Uses a unique algorithm to generate manageable polygon meshes, ideal for rendering, animation, CFD, FEA, and reverse-engineering.
请参考

MeshToNURB
Duplicate each mesh face with a NURBS surface.

ToNURBS
Convert objects like polycurves, extrusions, meshes, SubDs, true circles and arcs, to NURBS geometry components.
Collapse mesh faces and vertices
The MeshRepair command integrates many mesh cleanup commands into a single dialog.