几何造型器

几何造型系统是指能够定义、描述、生成几何模型,并能够进行交互编辑处理的系统称为几何造型系统。采用几何造型技术,可以将物体的形状及其各种属性存储在计算机内,形成该物体的几何模型。这样的几何模型是对原物体确切的数学表达,或对其某种状态的真实模拟。
Conversion Operators in OpenCascade-卡核

Conversion Operators in OpenCascade

Conversion Operators in OpenCascade eryar@163.com Abstract. C++ lets us redefine the meaning of the operators when applied to objects. It also lets us define conversion operations ...
OpenCascade Primitives BRep-Cone-卡核

OpenCascade Primitives BRep-Cone

OpenCascade Primitives BRep-Cone eryar@163.com Abstract. BRep is short for Boundary Representation. Boundary Representation gives a complete description of an object by associating...
最小二乘法拟合三维直线-卡核

最小二乘法拟合三维直线

最小二乘法拟合三维直线 eryar@163.com   在《高等数学》的书中给出了最小二乘法拟合直线的具体实例,但是那个例子是拟合二维直线的f(t)=at+b,那么三维直线怎么使用最小二乘法来拟合呢?...
OpenCASCADE Interpolations and Approximations-卡核

OpenCASCADE Interpolations and Approximations

OpenCASCADE Interpolations and Approximations eryar@163.com Abstract. In modeling, it is often required to approximate or interpolate points to curves and surfaces. In interpolatio...
occActiveX - ActiveX with OpenCASCADE-卡核

occActiveX – ActiveX with OpenCASCADE

occActiveX - ActiveX with OpenCASCADE eryar@163.com Abstract. OpenCASCADE ActiveX wrapper for VB, C#, Web, Delphi. Key Words. OpenCASCADE, ActiveX, VB, Delphi, C#, Web 1.Introducti...
AVEVA PDMS to DIALux-卡核

AVEVA PDMS to DIALux

AVEVA PDMS to DIALux eryar@163.com   Abstract. DIAL develops DIALux - the world\'s leading software for planning, calculation and visualisation of indoor and outdoor lighting....
OpenCascade Chinese Text Rendering-卡核

OpenCascade Chinese Text Rendering

OpenCascade Chinese Text Rendering eryar@163.com Abstract. OpenCascade uses advanced text rendering powered by FTGL library. The FreeType provides vector text rendering, as a resul...
《计算共形几何》教程第一章-卡核

《计算共形几何》教程第一章

【最近老顾等人合著的汉语教程《计算共形几何》已经完成初稿。这里我们将第一章公布,其他章节会在清华暑期课程中讲授。希望大家批评指正,不吝赐教。有兴趣预定者,请联系gu@cmsa.fas.harvard....
[转]C语言字节对齐问题详解-卡核

[转]C语言字节对齐问题详解

C语言字节对齐问题详解 转载:https://www.cnblogs.com/clover-toeic/p/3853132.html     引言      考虑下面的结构体定义: 1 typedef struct{ 2 char c1; 3 short s...
OpenCASCADE点向平面投影-卡核

OpenCASCADE点向平面投影

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...
Topology Shapes of OpenCascade BRep-卡核

Topology Shapes of OpenCascade BRep

Topology Shapes of OpenCascade BRep eryar@163.com 摘要Abstract:通过对OpenCascade中的BRep数据的读写,理解边界表示法的概念及实现。理解了拓朴形状的数据结构,就对ModelingData模块有了...
OpenCASCADE Make Face With Holes-卡核

OpenCASCADE Make Face With Holes

OpenCASCADE Make Face With Holes eryar@163.com OpenCASCADE提供了构造Face的类BRepBuilderAPI_MakeFace,使用这个类可以构造出带孔的面。如下图所示: 当然,要得到上图所示的结果,还可以使...