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 composition of elementary coordinate systems, each one is called a Datum. The…

OpenCascade Shape Representation in OpenSceneGraph eryar@163.com 摘要Abstract:本文通过程序实例,将OpenCascade中的拓朴数据(边.面)离散化后在OpenSceneGraph中进行显示.有了这些离散数据,就可以不用OpenCascade的显示模块了,可以使用其他显示引擎对形状进行显示.即若要线框模式显示形状时,就绘制离散形状拓朴边后得到的多段线:若要实体渲染模式显示形状时,就绘制离散形状拓朴面得到的三角网格.理解这些…

Locations Section of OpenCascade BRep eryar@163.com 摘要Abstract:本文结合OpenCascade的BRep格式描述文档和源程序,对BRep格式进行分析,详细说明BRep的数据组织形式.本文主要通过对BRep文件中的Locations部分的读写代码进行分析,来完全理解OpenCascade中的Location部分. 关键字Key Words:OpenCascade, BRep Format, Location, Location Set…

Open Cascade DataExchange IGES eryar@163.com 摘要Abstract:本文结合OpenCascade和Initial Graphics Exchange Specification来对IGES格式进行详细说明,理解IGES格式的结构,进而方便对OpenCascade中IGES格式文件读写的实现进行理解. 关键字Key Words:IGES.Open Cascade.Data Exchange 一.引言 Introduction 目前市面上的CAD系统都有…

http://blog.csdn.net/pipisorry/article/details/49515215 统计函数Statistical functions(scipy.stats) Python有一个很好的统计推断包.那就是scipy里面的stats. Scipy的stats模块包含了多种概率分布的随机变量,随机变量分为连续的和离散的两种.所有的连续随机变量都是rv_continuous的派生类的对象,而所有的离散随机变量都是 rv_discrete的派生类的对象. This modul…

scipy.stats Scipy的stats模块包含了多种概率分布的随机变量,随机变量分为连续的和离散的两种.所有的连续随机变量都是rv_continuous的派生类的对象,而所有的离散随机变量都是 rv_discrete的派生类的对象. This module contains a large number of probability distributions as well as a growing library of statistical functions. Each univ…

前面我们感觉ES就想是一个nosql数据库,支持Free Schema. 接触过Lucene.solr的同学这时可能会思考一个问题——怎么定义document中的field?store.index.analyzer等属性如何配置? 这时可以了解下ES中的Mapping. [reference] http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping.html#mapping Mapping is…

@http://www-cs-faculty.stanford.edu/people/karpathy/cvpr2015papers/ CVPR 2015 papers (in nicer format than this) maintained by @karpathy NEW: This year I also embedded the (1,2-gram) tfidf vectors of all papers with t-sne and placed them in an interf…

Mapping is the process of defining how a document should be mapped to the Search Engine, including its searchable characteristics such as which fields are searchable and if/how they are tokenized. In ElasticSearch, an index may store documents of dif…

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 class BRepFeat_SplitShape to implement the function. The paper give a…