Surface Normal Averaging eryar@163.com 摘要Abstract：正确设置网格面上点的法向，对几何体在光照等情况下显示得更真实，这样就可以减少顶点数量，提高渲染速度。本文通过将OpenCascade中的形...

Visulalization Voronoi in OpenSceneGraph eryar@163.com Abstract. In mathematics a Voronoi diagram is a way of dividing space into a number of regions. A set of points, called seeds...

Visulalize Boost Voronoi in OpenSceneGraph eryar@163.com Abstract. One of the important features of the boost polygon library is the implementation of the generic sweepline algorit...

Clash Detection eryar@163.com Abstract. Clash detection is used for the model collision check. The paper introduce the clash detection in PDMS, and also about how to set the piping...

Bounding Volume Hierarchy BVH in OpenCASCADE eryar@163.com Abstract. Bounding Volume Hierarchy(BVH) organizes geometric objects in the tree based on spatial relationships. Each nod...

Bounding Volume Hierarchy BVH in OpenCASCADE eryar@163.com Abstract. Bounding Volume Hierarchy(BVH) organizes geometric objects in the tree based on spatial relationships. Each nod...

目前，全世界知名的商用三维几何引擎就是西门子的Parasolid与达索的ACIS，已发展成为两个最大的阵营。这也是主流BIM / PLM软件所使用的三维几何平台内核，两种建模器均建于1985年左右，并在90年...