( 3 ) uniformed contours stacked together and constructed real boundary element method ( bem ) calculation models for e / meg research respectively by minimum distance method and 3d - delaunary based triangulation growth method . finally developed visualization algorithm based on surface rendering for the purpose of integration of structure and function information 在构建剖分模型上，用基于最短对角线(在两层轮廓中心偏离较大的情况下，对轮廓进行了对中变换)和基于3ddelaunay的方法构建了计算模型；基于表面绘制的思想，实现了头和脑的可视化。
