OpenCASCADE 曲面展开 eryar@163.com   Abstract: There is a common need in industries dealing with sheet material products (shipbuilding in the sphere of vessel design, construc...

OpenCascade Ruled Surface eryar@163.com Abstract. A ruled surface is formed by moving a line connecting points of equal relative arc length or equal relative parametric value on tw...

Qt Undo Framework Demo eryar@163.com Abstract. Qt’s Undo Framework is an implementation of the Command Pattern, for implementing undo/redo functionality in applications. The Comma...

OpenCASCADE Rational Bezier Curves eryar@163.com Abstract. Although polynomials offer many advantages, there exist a number of important curve and surface types which cannot be rep...

Pipedata3d - Welding Neck Flange eryar@163.com Abstract. Pipedata3d show piping component data in tables and 3D modeling. It can help the piping designers to looking up piping info...

这次课程，我们简单介绍曲面基本群（一维同伦群）的理论梗概。主要概念有基本群的定义，表示，计算。然后我们介绍覆盖空间理论，特别是万有覆盖空间理论，曲线同伦检测算法。【1】给出了课程的...

最小二乘法拟合直线 在科学实验和生产实践中，经常需要从一组实验数据出发寻求函数y=f(x)的一个近似表达式，也称为经验公式。从几何上看，就是希望根据给定的m个点，求曲线y=f(x)的一条近似曲线...

Open Cascade is pleased to announce a new public release of Open CASCADE Technology (version 7.6.0). Open CASCADE Technology version 7.6.0 is a mino...

Mesh Algorithm in OpenCascade eryar@163.com Abstract. Rendering a generic surface is a two steps process: first, computing the points that will form the mesh of the surface and the...

OpenCASCADE BRep Projection eryar@163.com 一网友发邮件问我下图所示的效果如何在OpenCASCADE中实现，我的想法是先构造出螺旋线，再将螺旋线投影到面上。 为了验证我的想法，结合原来螺旋线的...

AVEVA PDMS Text Tool eryar@163.com 网上有个文字工具插件，可以在PDMS中创建三维的字母、数字，不过不能创建中文。所以开发一个小工具，可以在PDMS中创建任意文字，如下图所示：

OpenCASCADE BRepMesh - 2D Delaunay Triangulation eryar@163.com Abstract. OpenCASCADE package BRepMesh can compute the Delaunay’s triangulation with the algorithm of Watson. It can...