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OpenCASCADE Data Exchange - 3D PDF

摘要: Abstract. Today most 3D engineering model data are save to 3D PDF files. Universal 3D(U3D) along side Product Representation Compact(PRC), U3D is the historical foundation used to embed 3D interactive data and models into a PDF file. But PRC is now the preferred and most feature-rich method to embed 3D data into a PDF file. So the paper is focus on to translate OpenCASCADE geometry data to 3D PDF by embedding PRC file.

Key Words. PDF 3D, OpenCASCADE, U3D, PRC, libharu 閱讀全文

posted @ 2016-03-24 23:16 eryar 閱讀(3936) | 評論 (3) | 編輯收藏

RvmTranslator Translate RVM to 3D PDF

摘要: The Portable Document Format(PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating system.

RVM file is used in AVEVA Review to visualize the plant design model. RvmTranslator can translate RVM file to STEP, IGES, STL, OBJ, now experiment to translate RVM model to 3D PDF inspired by Siddharth Manek:

RVM, IGES, STEP, STL, OBJ, 3D PDF 閱讀全文

posted @ 2016-03-19 14:34 eryar 閱讀(2270) | 評論 (0) | 編輯收藏

OpenCASCADE Interpolations and Approximations

摘要: Abstract. In modeling, it is often required to approximate or interpolate points to curves and surfaces. In interpolation, the process is complete when the curve or surface passes through all the points; in approximation, when it is as close to these points as possible. The paper is the translation of the OpenCASCADE Modeling Data user guide.

Key Words. Interpolation, Approximation, Fitting 閱讀全文

posted @ 2016-03-17 23:10 eryar 閱讀(2783) | 評論 (1) | 編輯收藏

RvmTranslator 3.1 is released

摘要: PDMS數(shù)據(jù)交換, RvmTranslator 閱讀全文

posted @ 2016-03-14 23:29 eryar 閱讀(1514) | 評論 (1) | 編輯收藏

Tcl internal variables

摘要: Tcl內(nèi)置變量備忘錄。閱讀全文

posted @ 2016-03-12 10:51 eryar 閱讀(1541) | 評論 (0) | 編輯收藏

OpenCASCADE Ring Type Spring Modeling

摘要: Abstract. The general method to directly create an edge is to give a 3D curve as the support(geometric domain) of the edge. The curve maybe defined as a 2D curve in the parametric space of a surface: PCurve. When you understand the pcurve, you can modeling some interesting shapes, such as bottle neck thread, helix spring, ring type spring. Etc. The paper is focus on the Ring Type Spring Modeling in OpenCASCADE Draw Test Harness by Tcl script.

Key Words. Spring, Helix, Tcl/Tk, 環(huán)形彈簧閱讀全文

posted @ 2016-03-05 00:51 eryar 閱讀(2275) | 評論 (0) | 編輯收藏

OpenCascade Jobs

摘要: OpenCascade Jobs
OpenCascade相關(guān)工作信息發(fā)布。閱讀全文

posted @ 2016-02-24 20:22 eryar 閱讀(2229) | 評論 (2) | 編輯收藏

SupportGenius for PDMS

摘要: SupportGenius is used to build pipe hanger and support 3D model in PDMS and also can generate the material report.

SupportGenius用來在PDMS中自動生成支吊架三維模型及材料報表。
程序使用簡單；
且不需要配置數(shù)據(jù)庫，部署簡單；
可擴展性高，可以方便根據(jù)公司標準定制；閱讀全文

posted @ 2016-02-18 22:57 eryar 閱讀(2279) | 評論 (11) | 編輯收藏

IsoAlgo2.0 is released!

posted @ 2016-01-29 22:58 eryar 閱讀(1604) | 評論 (0) | 編輯收藏

OPEN CASCADE編譯視頻

摘要: 為了幫助OPEN CASCADE新手順利編譯OPEN CASCADE源碼，特錄制了一個視頻，
有了這個視頻，OPEN CASCADE的編譯再也不麻煩啦！閱讀全文

posted @ 2016-01-20 21:49 eryar 閱讀(2961) | 評論 (6) | 編輯收藏

Function Set in OPEN CASCADE

摘要: Abstract. The common math algorithms library provides a C++ implementation of the most frequently used mathematical algorithms. These include: algorithms to solve a set of linear algebraic equations, algorithms to find the minimum of a function of one or more independent variables, algorithms to find roots of one, or of a set of non-linear equations, algorithm to find the eigenvalues and eigenvectors of a square matrix. The solver for function set is used widely in extrema value evaluation, poin 閱讀全文

posted @ 2016-01-13 19:38 eryar 閱讀(1975) | 評論 (0) | 編輯收藏

Happy New Year 2016

posted @ 2016-01-01 19:38 eryar 閱讀(1589) | 評論 (7) | 編輯收藏

Interop Excel in PDMS

摘要: Abstract. There are many data stored in Excel during the design procedure. Read data from Excel can do some validation in PDMS, such as check the pressure for a given pipeline. Write Excel can make the MTO export automatically. So interop Excel in PDMS have practice significant.

Key Words. PDMS, Excel, Infragistics, AVEVA .Net 閱讀全文

posted @ 2015-12-29 23:37 eryar 閱讀(2080) | 評論 (0) | 編輯收藏

pipedata3d–Ladder

posted @ 2015-12-17 20:16 eryar 閱讀(1191) | 評論 (0) | 編輯收藏

Apply Newton Method to Find Extrema in OPEN CASCADE

摘要: Abstract. In calculus, Newton’s method is used for finding the roots of a function. In optimization, Newton’s method is applied to find the roots of the derivative. OPEN CASCADE implement Newton method to find the extrema for a multiple variables function, such as find the extrema point for a curve and a surface.

Key Words. Nonlinear Programming, Newton Method, Extrema, OPEN CASCADE 閱讀全文

posted @ 2015-12-06 10:47 eryar 閱讀(2526) | 評論 (0) | 編輯收藏

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