C++ 应用程序性能优化 eryar@163.com 1. Introduction 对于几何造型内核OpenCASCADE，由于会涉及到大量的数值算法，如矩阵相关计算，微积分，Newton迭代法解方程，以及非线性优化的一些算...

CesiumJS - 3D Tiles BIM eryar@163.com 1. Introduction CesiumJS is an open-source JavaScript library for world-class 3D globes and maps.  从其官网上可以看到这个库的愿景：提供世...

BRep Builder eryar@163.com   1 Introduction 类BRep_Builder提供了创建、修改BRep模型的方法。使用这个类，你可以从底层自己构建BRep体，前提条件是你要对BRep模型的数据结构有一定理解...

OpenCASCADE DRAW Command Source eryar@163.com OpenCASCADE Draw Harness是基于Tcl脚本命令语言的工具，可以用来演示OCCT中的造型功能。Draw Harness中提供的命令基本包含了OCCT中所有的功能...

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...

OpenCASCADE Ring Type Spring Modeling eryar@163.com Abstract. The general method to directly create an edge is to give a 3D curve as the support(geometric domain) of the edge. The ...

Boolean operations between triangle meshes eryar@163.com Abstract. Boolean operations is one of basic and well known on 3D models. The operations are widely used in computer graphi...

Building OpenCascade on Windows with Visual Studio eryar@163.com   摘要Abstract：详细说明OpenCascade的编译配置过程，希望对你编译OpenCascacde有所...

Delaunay Triangulation in OpenCascade eryar@163.com 摘要：本文简要介绍了Delaunay三角剖分的基础理论，并使用OpenCascade的三角剖分算法将边界BRep表示的几何体进行三角离散化后在OpenScene...

OpenCASCADE BRep vs. OpenNURBS BRep eryar@163.com Abstract. BRep short for Boundary Representation. First give the definition of the BRep, then compare the BRep mode between OpenCA...

OpenCascade BRep Format Description eryar@163.com 摘要Abstract：本文结合OpenCascade的BRep格式描述文档和源程序，对BRep格式进行分析，详细说明BRep的数据组织形式。结合源程序，可以对Ope...

OpenCASCADE JT Assistant eryar@163.com Abstract. Siemens’ JT data format accepted as the world’s first ISO international standard for viewing and sharing lightweight 3D product i...