IsoAlgo3d - A PCF 3D Viewereryar@163.comAlias的Isogen的PCF和IDF是生成管道ISO图的数据交换文件，且已经成为了国际标准。IsoAlgo可以根据PCF文件生成DXF格式的ISO图纸，如下图所示：关于IsoAlgo的更多信息请参考：http://www.cppblog.com/eryar/archive/2014/04/27/206729.htmlIsoAlgo3d主要用来将PCF中的信息以三维的方式展现，如下图所示：Figure 1 IsoAlgo3d GUI主要功能如下：1.可以同时打开一个或多个PCF文件；2.提供方便地视图操作功能，如平移、旋转和缩放；3.添加焊点功能；Figure 2 Pipeline in IsoAlgo3dFigure 3 Create Weld in IsoAlgo3deryar2015-08-06 22:46发表评论 ...继续阅读 (100)

摘要: Getting Started with PostgreSQL eryar@163.com Abstract. PostgreSQL is an excellent implementation of relational database, fully featured, open source, and free to use. Nearly nontrivial computer appli...阅读全文eryar2015-03-28 12:56发表评论 ...继续阅读 (63)

摘要: OpenCASCADE BRepTools eryar@163.com Abstract. OpenCASCADE BRepTools provides utilities for BRep data structure. OuterWire method to find the outer wire of a face. Dump method to dump a BRep object. It...阅读全文eryar2015-03-14 20:18发表评论 ...继续阅读 (94)

摘要: pipedata3d User Guide 1. Introduction 在管道设计过程中，会使用到大量的标准，如ASME，DIN，GB，CB，HG，SH等等。管道设计人员在设计过程中，需要翻阅相关标准手册，查找所需要的数据，较为繁琐。如果能将相关管件的数据以直观的方式展示出来，可以极大地提高管道设计人员的设计效率。 pipedata3d通过把标准数据以表格及三维模型的方式展示出来，更加形象...阅读全文eryar2015-03-03 21:18发表评论 ...继续阅读 (76)

Pipedata3d - Welding Neck Flangeeryar@163.comAbstract.Pipedata3d show piping component data in tables and 3D modeling. It can help the piping designers to looking up piping information quickly and so improve the efficiency of piping design.Key Words.Pipedata3d, ASME, GB, HG, CB, Piping Design1. Introduction在管道设计过程中，会使用到大量的标准，如ASME，DIN，GB，CB，HG，SH等等。管道设计人员在设计过程中，需要翻阅相关标准手册，查找所需要的数据，较为繁琐。如果能将相关管件的数据以直观的方式展示出来，可以极大地提高管道设计人员的设计效率。Pipedata3d通过把标准数据以表格及三维的方式展示出来，更加形象直观，在方便设计人员查询数据的同时，增加了些许趣味性。本文将Pipedata3d的结合ASME B16.5中的对焊法兰将实现过程简要介绍一下，并给出相关的实现脚本代码，感兴趣的可以自己玩玩。2.ASME B16.5 Weld Neck Flange标准ASME B16. ...继续阅读 (106)

Create views of OpenCASCADE objects in the Debuggereryar@163.comAbstract.The Visual Studio Natvis framework lets you customize the way Visual Studio displays native types in debugger variable windows such as the Watch, Locals and Data Tips windows. It supersedes the autoexp.dat file that has been used in earlier versions of Visual Studio and offers XML syntax, better diagnostics, versioning, and multiple file support. The container in OpenCASCADE is difficult for debugging, such as TColStd_Array1OfInteger in the TColStd package, .etc. Use the natvis framework to create views of these objects w ...继续阅读 (110)

Undo/Redo for Qt Tree Modeleryar@163.comAbstract.Qt contains a set of item view classes that use a model/view architecture to manage the relationship between data and the way it is presented to the user. The separation of functionality introduced by this architecture gives developers greater flexibility to customize the presentation of items, and provides a standard model interface to allow a wide range of data sources to be used with existing item views. Model 3D aided design software such as AVEVA Plant/PDMS, Marine use the architecture to manage the design data source. The article demonstra ...继续阅读 (143)

OpenCASCADE General Transformationeryar@163.comAbstract.OpenCASCADE provides a general transformation class: gp_GTrsf. It can be a transformation from gp, an affinity, or you can define your own transformation giving the matrix of transformation. The general transformation contains the vectorial part of the transformation and the translation part. A GTrsf transformation is only applicable to coordinates. Be careful if you apply such a transformation to all points of a geometric object, as this can change the nature of the object and thus render it incoherent. Typically a circle is transformed ...继续阅读 (116)

Iterate Files by Tcltkeryar@163.comAbstract.Tcl/Tk provide a programming system for developing and using graphical user interface(GUI) applications. Tcl stands for “tool command language” and is pronounced “tickle”, is a simple scripting language for controlling the extending applications. The blog use Tcl/Tk to iterate all the files for a given directory, this is useful to some automation work, such as change all the file names for a given directory; add copyright info for the source code files.Key Words.Tcl/Tk, Iterate Files，遍历文件夹中所有文件1. IntroductionTcl/Tk是一种用于易于使用的脚本 ...继续阅读 (80)

AutoCAD File Mergereryar@163.comAbstract. There are many drawing files during the ship design or other design process, so somebody want to merge them to one DWG file. The DwgMerger is a AutoCADE plugin developed by AutoCAD .NET, its purpose is to merge all the drawing files, include dwg and dxf format to one drawing paper.Key Words. AutoCAD, DWG, DXF, Merger, 合并1. Introduction在工程设计过程中，会产生很多图纸。像船舶生产设计的管系出图，有的区域或分段会产生几百张管子零件图。为了便于图纸的管理及打印，需要将这些图纸合并到一张图纸上。为此，利用AutoCAD .NET开发一个小插件DwgMerger，来实现这个功能。原来直接得用C++开发一个不依赖AutoCAD的合并DXF文件的小程序DxfMerger，详见：http://www.cppblog.com/eryar/archive/2012/07/12/18305 ...继续阅读 (85)