获取格林尼治标准时间并换算成北京时间然后进行有效期判断。 Access to the GMT and +8 hours then check the validity.

Sculptured, organic modeling in 3D. SubD like interface, but advanced surfacing for high quality, geometrically rich shapes.

a reverse engineering tool that gives Rhino the ability to reconstruct NURB Surface(s) from mesh or point cloud with specified precision.

GeomCraft is a toolbox for reverse engineering, aiming at reconstructing digital data such that craftsmen elaborate 3D shapes.

XirusCAD RE provides a powerful toolset to convert volumetric point clouds or meshes into smooth NURBS surfaces.

Automates some of the more common jewelry tasks: Pave, shanks, signet rings, weights etc....

The most complete and powerful CAD software for 3D jewelry design

The HAL Robotics Framework provides powerful tools to model, program, simulate and control industrial machinery directly from McNeel products.