The project SystemFugen is provided as two groups, MGCL and fugen. MGCL is a 3D surface modeler that utilizes NURBS free form surfaces and curves. MGCL can be used as a DLL library. As a modeler, MGCL supports shell modeling that connect trimmed surfaces, and enables a watertight tessellation of shell model. For its rendering, it supports the interfaces to OpenGL4. It provides fundamental mathematical function classes such as vector, matrix, or others. On the other hand, Fugen is a 3D surface modeling system that uses Windows MFC framework as its Man-Machine interface. We use IGES file format to exchange models. We look for some engineering company who use Fugen, and CAD developpers who and work for Fugen.
Topologicla data structure is enhanced. Using multiple class inheritance, some classes, like MGTopology and so on, are eliminated and a lot of data area are saved.
一番の改良はトポロジー構造を簡略化したことです。クラスの多重継承を利用してクラス構造を再編、MGTopologyなどいくつかのクラスを廃止し、引き締まったクラス構造となりました。
