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     摘要: OpenCASCADE Code Study Outline.
Updating……  阅读全文

posted @ 2014-11-16 20:59 eryar 阅读(5331) | 评论 (0)编辑 收藏

     摘要: IsoAlgo-Piping Isometric drawing generation Algorithms.
IsoAlgo can generate piping isometrics drawings from PCF to DXF.

For more information about IsoAlgo, please visit:
Any feedback is welcome, please send email to the author:


posted @ 2014-04-27 11:20 eryar 阅读(1840) | 评论 (0)编辑 收藏

     摘要: AVEVA Model Data Exchange 将AVEVA中设备、管道等模型转换成STEP、IGES、STL、3DS格式,以便于将模型导入到其它CAD软件中。
The Model Data Exchange Addin allows the user to extract 3D geometric models from the DESIGN databases and output them in STEP, IGES, STL format. Those file format can be used to import 3D geometry into the systems that can read the format, such as Autodesk® 3D Max, Pro/E, etc.
配置方法见:  阅读全文

posted @ 2013-09-11 18:41 eryar 阅读(4007) | 评论 (28)编辑 收藏


     摘要: Abstract. EasyMesh is developed by Bojan Niceno, it is a two-dimensional quality mesh generator. EasyMesh can generate two dimensional, unstructured, Delaunay and constrained Delaunay triangulations in general domains. It can handle holes in the domain. The paper focus on the usage of EasyMesh.

Key Words. EasyMesh, Delaunay Triangualtion, Triangulation, Mesh  阅读全文

posted @ 2017-01-06 22:54 eryar 阅读(162) | 评论 (0)编辑 收藏


     摘要: RvmTranslator5.1

1. Fix crash bug for binary rvm file;

download RvmTranslator5.1:  阅读全文

posted @ 2016-12-18 23:05 eryar 阅读(593) | 评论 (0)编辑 收藏


     摘要: 上海地目信息科技有限公司招聘OpenCASCADE相关图形开发人员,有兴趣的可直接与hr联系。  阅读全文

posted @ 2016-12-09 22:06 eryar 阅读(314) | 评论 (0)编辑 收藏


     摘要: Abstract. OpenCASCADE7.1.0 introduces new built-in interactive object AIS_Manipulator providing interface for moving objects within 3D viewer. The class features three kinds of transformation modes for attached objects: translation through axis, scaling within axis, rotation around axis. The object can be activated using vmanipulator command within Draw Test Harness.

Key Words. OpenCASCADE, 3D Viewer Interactive, Model Editor, Manipulator  阅读全文

posted @ 2016-12-08 23:08 eryar 阅读(262) | 评论 (0)编辑 收藏


     摘要: 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 straight line or circular paths. Or in the shipbuilding industry to manufacture section bar for cold frame bender.

Key Words. NURBS, Biarc approximation, arc spline,  阅读全文

posted @ 2016-11-22 23:12 eryar 阅读(333) | 评论 (0)编辑 收藏


     摘要: Abstract. Qt’s ActiveX and COM support allows Qt for Windows developers to access and use ActiveX controls and COM objects provided by any ActiveX server in their Qt applications. Make their Qt application available as COM servers, with any number of Qt objects and widgets as COM objects and ActiveX controls. Make OpenSceneGraph to ActiveX controls then you can use it in other place, like IE.

Key Words. OpenSceneGraph, ActiveX, COM, ActiveQt  阅读全文

posted @ 2016-11-11 23:32 eryar 阅读(472) | 评论 (0)编辑 收藏


     摘要: RvmTranslator5.1 is released! This is a 3ds max plugin developed by 3ds max sdk.  阅读全文

posted @ 2016-10-03 12:14 eryar 阅读(612) | 评论 (0)编辑 收藏


     摘要: 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 Location keeps track of this composition. The paper will use the Draw Test Harness to illustrate the Location concept.

Key Words. Transformation, Location, Local Coordinate Systems  阅读全文

posted @ 2016-09-07 00:06 eryar 阅读(627) | 评论 (0)编辑 收藏


     摘要: RvmTranslator5.0 is released!

This version support to translate RVM to AutoCAD DXF file.  阅读全文

posted @ 2016-08-22 23:26 eryar 阅读(502) | 评论 (0)编辑 收藏


     摘要: OpenCASCADE BRepProj_Projection   阅读全文

posted @ 2016-08-16 23:11 eryar 阅读(609) | 评论 (0)编辑 收藏


     摘要: RvmTranslator4.3 ChangeLog

1. Reduce the STEP file size to improve the performance for STEP translation;
2.Fix the dish lose in STEP file;  阅读全文

posted @ 2016-08-13 09:58 eryar 阅读(423) | 评论 (0)编辑 收藏


     摘要: 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,如BFGS,FRPR,PSO等等用于多元函数的极值求解,所以这些数值算法的性能直接影响系统的性能。软件的性能优化是计算机软件开发过程中需要一直关注的重要因素,因此有必要学习下C++应用程序性能优化的方法。  阅读全文

posted @ 2016-07-31 13:44 eryar 阅读(2672) | 评论 (4)编辑 收藏


     摘要: In order to export PDMS model to other system more convenient, I wrapped the RvmTranslator in PDMS by PML. Then you can export PDMS model to STEP, IGES, STL, 3D PDF. Etc. Directly.   阅读全文

posted @ 2016-06-26 00:39 eryar 阅读(764) | 评论 (9)编辑 收藏


     摘要: IsoAlgo3d is a PCF format 3d visualization tool. I publish it on github to open the source code. Its license is GPL, you can use the IsoAlgo3d freely.

You can download the source code and contribute your modification.

posted @ 2016-06-16 23:21 eryar 阅读(531) | 评论 (0)编辑 收藏


     摘要: PCurve is a powerful modeling method, to make helix shapes in occQt to help you understand pcurve better, then you can also can model some intereting shape based on pcurve.

OpenCASCADE does not provide helix curve directly, but you can build a helix curve by the pcurve of a surface(curve on surface). When you understand the pcurve of a surface, you can make a helix curve easily.

posted @ 2016-06-05 13:44 eryar 阅读(703) | 评论 (2)编辑 收藏