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Two analytical 2d line intersection in OpenCASCADE

Abstract. OpenCASCADE geometric tools provide algorithms to calculate the intersection of two 2d curves, surfaces, or a 3d curve and a surface. Those are the basis of the Boolea...

2017/02/25 23:15
252
EasyMesh - A Two-Dimensional Quality Mesh Generator

Abstract. EasyMesh is developed by Bojan Niceno, it is a two-dimensional quality mesh generator. EasyMesh can generate two dimensional, unstructured, Delaunay and constrained De...

2017/01/08 21:11
965
Convert BSpline Curve to Arc Spline in OpenCASCADE

Abstract. The paper based on OpenCASCADE algorithms to approximate the NURBS curve to arc spline. The method is most useful in numerical control to drive the cutter along straig...

OpenCASCADE Shape Location

OpenCASCADE Shape Location eryar@163.com Abstract. The TopLoc package of OpenCASCADE gives resources to handle 3D local coordinate systems called Locations. A Location is a comp...

2016/09/07 18:38
535
OpenCASCADE BRep Projection

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...

2016/08/17 19:49
672
C++ 应用程序性能优化

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法,...

2016/08/01 21:29
255
OpenCASCADE Expression Interpreter by Flex & Bison

OpenCASCADE Expression Interpreter by Flex & Bison eryar@163.com Abstract. OpenCASCADE provide data structure of any expression, relation or function used in mathematics. Flex a...

2016/05/28 13:56
652
Function Set in OPEN CASCADE

Function Set in OPEN CASCADE eryar@163.com Abstract. The common math algorithms library provides a C++ implementation of the most frequently used mathematical algorithms. These ...

2016/01/16 13:56
212
Apply Newton Method to Find Extrema in OPEN CASCADE

Apply Newton Method to Find Extrema in OPEN CASCADE eryar@163.com Abstract. In calculus, Newton’s method is used for finding the roots of a function. In optimization, Newton’s...

2016/01/16 13:54
127
OPEN CASCADE Multiple Variable Function

OPEN CASCADE Multiple Variable Function eryar@163.com Abstract. Multiple variable function with gradient and Hessian matrix is very very import in OPEN CASCADE optimization algo...

2016/01/16 13:51
236
OPEN CASCADE Gauss Least Square

OPEN CASCADE Gauss Least Square eryar@163.com Abstract. The least square can be used to solve a set of n linear equations of m unknowns(n >= m). The OPEN CASCADE class math_Gaus...

2015/11/25 22:13
188
OPEN CASCADE Curve Continuity

OPEN CASCADE Curve Continuity eryar@163.com Abstract. 设计一条复杂曲线时,出于设计和制造上的考虑,常常通过多段曲线组合而成,这就需要解决曲线段之间如何实现光滑连接的问题。评价曲线...

2015/11/17 23:41
367
OPEN CASCADE BSpline Curve Interpolation

OPEN CASCADE BSpline Curve Interpolation eryar@163.com Abstract. Global curve interpolation to point data is a way to construct curves. The paper focus on the interpolate algori...

2015/11/13 20:07
1K
OpenCASCADE Interpolation - Lagrange

OpenCASCADE Interpolation - Lagrange eryar@163.com Abstract. Power basis polynomial is the most simple polynomial function. It also be called power series. OpenCASCADE provides ...

2015/09/05 12:44
184
OpenGL Shader in OpenCASCADE

OpenGL Shader in OpenCASCADE eryar@163.com Abstract. As implementation of one of the strategic steps in OpenCASCADE visualization component development road-map, support for GLS...

2015/07/22 23:32
290
A Simple OpenGL Shader Example II

A Simple OpenGL Shader Example II eryar@163.com Abstract. The OpenGL Shading Language syntax comes from the C family of programming languages. Tokes, identifiers, semicolons, ne...

2015/07/21 23:12
192
Make Helix Curve in OpenCASCADE

Make Helix Curve in OpenCASCADE eryar@163.com Abstract. OpenCASCADE does not provide helix curve directly, but you can build a helix curve by the pcurve of a surface(curve on su...

2015/07/09 22:16
187
A Simple OpenGL Shader Example

A Simple OpenGL Shader Example eryar@163.com Abstract. OpenGL Shading Language, the high-level programming language defined to allow application writers to write programs that e...

2015/06/27 21:55
183
Use Qt in Debian for OpenCASCADE

Use Qt in Debian for OpenCASCADE eryar@163.com Recently several OpenCASCADE enthusiasts want to build my simple Qt demo about OpenCASCADE on ubuntu system, but could not compile...

2015/05/21 22:23
103
OpenCASCADE PCurve of Topological Face

OpenCASCADE PCurve of Topological Face eryar@163.com Abstract. OpenCASCADE provides a class BRepBuilderAPI_MakeFace to build topological faces. A face maybe built from a surface...

2015/04/25 13:02
1.2K

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