OpenCASCADE点向直线投影 eryar@163.com   在GeomLib_Tool类中提供了计算指定点在曲线、曲面上的参数，这个算法具有通用性，即对任意曲线、曲面来反求点的参数。   本文主要结合源码...

Split Shape by Plane in OpenCASCADE eryar@163.com Abstract. Sometimes you want to split a shape by plane or even split a shape by a B Spline surface, OpenCASCADE provide a feature ...

今天在Qt中开发程序时，遇到一个QString::toStdString()的内存问题，用法如下： void test(const QString& theFileName) { std::string aFileName = theFileName.toStdString(); std::ofstr...

OpenNURBS to OpenCASCADE eryar@163.com Abstract. The OpenNURBS initiative provides CAD/CAM/CAE and computer graphics software developers the tools to accurately transfer 3D geometr...

Undo/Redo for Qt Tree Model eryar@163.com Abstract. Qt contains a set of item view classes that use a model/view architecture to manage the relationship between data and the way it...

OpenCascade Draw Test Harness eryar@163.com Abstract. Draw is a command interpreter based on Tcl/Tk and a graphical system used to test and demonstrate OpenCascade modeling librari...

OpenCASCADE Extended Data Exchange - XDE eryar@163.com Abstract. OpenCASCADE Data Exchange allows developing OCCT-Based applications that can interact with other CAD systems by wri...

OpenCascade Draw Test Harness eryar@163.com Abstract. Draw is a command interpreter based on Tcl/Tk and a graphical system used to test and demonstrate OpenCascade modeling librari...

OpenCASCADE 布尔运算简介 eryar@163.com 布尔运算（Boolean Operations）是根据两组模型的组合创建出新的模型的造型方法。两组模型Objects/Tools之间有三种布尔算子： 布尔并：FUSE，将两组模...

OpenCascade Application Framework Introduction eryar@163.com 本教程介绍了Open CASCADE程序框架（Application Framework）的使用方法。OCAF（the Open CASCADE Application Framework）是一...

OpenCASCADE点向平面投影   OpenCASCADE的ProjLib类提供了解析曲线（直线、圆、椭圆、抛物线、双曲线）向解析曲面（平面、圆柱面、圆锥面、球面、圆环面）投影的功能，主要用来计算三维曲...

Surface Normal Vector in OpenCascade eryar@163.com 摘要Abstract：表面上某一点的法向量（Normal Vector）指的是在该点处与表面垂直的方向。对于平面，其上各点的法向是一样的，统一为这个平...