OpenCASCADE DataExchange DWG eryar@163.com Abstract. DWG is a file format created in the 70’s for the emerging CAD applications. Currently it is the native file format of AutoCAD,...

Qt源码编译 eryar@163.com Key words. Qt, 源码编译 1.Introduction 随着Qt版本升级，源码编译出来的库体积越来越大。如果只是用Qt来做GUI，Qt提供的预编译库中有很多很功能不会用到，所以如果...

OpenCASCADE Customize Highlighting eryar@163.com   The traditional way of highlighting selected entity owners adopted by Open CASCADE Technology assumes that each entity owner...

PCurve - Curve on Surface eryar@163.com Abstract. 本文通过给出曲面上曲线PCurve的定义来对OpenCascade中的Curve On Surface进行理解，并介绍了OpenCascade对应的类BRep_CurveOnSurface实现...

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...

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...

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 ...

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...