eryar

OPEN CASCADE Curve Continuity

摘要: Abstract. 设计一条复杂曲线时，出于设计和制造上的考虑，常常通过多段曲线组合而成，这就需要解决曲线段之间如何实现光滑连接的问题。评价曲线间连接的光滑度的度量有两种：参数连接性和几何连续性。本文对这两种连续性分别进行介绍。

Key Words. Curve Continuity, Geometric Continuity, 参数连续性、几何连续性阅读全文

posted @ 2015-11-15 23:01 eryar 阅读(2464) | 评论 (4) | 编辑收藏

OPEN CASCADE BSpline Curve Interpolation

摘要: Abstract. Global curve interpolation to point data is a way to construct curves. The paper focus on the interpolate algorithm in OPEN CASCADE, and give a simple example to demonstrate the usage of the GeomAPI_Interpolate class.

Key Words. Interpolate, NURBS, BSpline, OPEN CASCADE 阅读全文

posted @ 2015-11-11 22:23 eryar 阅读(3543) | 评论 (2) | 编辑收藏

RvmTranslator - 3D OBJ

摘要: RvmTranslator2.2 - Support export 3D OBJ files. 阅读全文

posted @ 2015-11-07 18:00 eryar 阅读(3210) | 评论 (0) | 编辑收藏

BOOST Voronoi Visualizer

摘要: Abstract. The Voronoi extension of the Boost.Polygon library provides functionality to construct a Voronoi diagram of a set of points and linear segments in 2D space with some limitations. The paper mainly describles how to compile the boos voronoi visualizer and use it show the example voronoi diagram result.
Key Words. Boost, Voronoi, Visualizer 阅读全文

posted @ 2015-10-31 12:12 eryar 阅读(2109) | 评论 (2) | 编辑收藏

PDMS call Operating System Command

摘要: PDMS提供了在PML中调用系统命令的命令：syscom。借助这个PML命令，为PDMS的开发又提供了一种新架构（New Architecture）。本文详细介绍syscom命令的用法，及如何使用这条命令来为PDMS的二次开发指出一条新路。阅读全文

posted @ 2015-10-27 22:44 eryar 阅读(3186) | 评论 (0) | 编辑收藏

Clash Detection

摘要: Abstract. Clash detection is used for the model collision check. The paper introduce the clash detection in PDMS, and also about how to set the piping component for the operation space clash check.

Key Word. Clash Detection, Collision Detection
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posted @ 2015-10-21 21:01 eryar 阅读(2012) | 评论 (0) | 编辑收藏

IsoAlgo2.0 Preview

posted @ 2015-10-15 21:02 eryar 阅读(1413) | 评论 (2) | 编辑收藏

OpenCASCADE Interpolation - Lagrange

摘要: Abstract. Power basis polynomial is the most simple polynomial function. It also be called power series. OpenCASCADE provides basic computation functions for polynomial functions, such as evaluate the result for a given polynomial, Lagrange interpolation, Hermite interpolation, .etc. The package named PLib, means Polynomial functions Library. The paper focus on the Lagrange interpolation usage of PLib.

Key Words. OpenCASCADE, PLib, Interpolation, Lagrange, 插值阅读全文

posted @ 2015-09-05 12:16 eryar 阅读(2554) | 评论 (0) | 编辑收藏

RvmTranslator 2.1 is released

摘要: RvmTranslator2.1 [20150818]
----------------
1. Improve performance for STEP translation;
2. Finish parse all the primitive shapes in RVM file; 阅读全文

posted @ 2015-08-18 22:10 eryar 阅读(2503) | 评论 (4) | 编辑收藏

Export AutoCAD Entities for PDMS Aids

摘要: cad2pdms - Export AutoCAD Entities for PDMS Aids. 阅读全文

posted @ 2015-08-15 19:33 eryar 阅读(3231) | 评论 (14) | 编辑收藏

IsoAlgo3d - A PCF 3D Viewer

摘要: IsoAlgo3d - A PCF 3D Viewer. 阅读全文

posted @ 2015-08-06 22:46 eryar 阅读(2602) | 评论 (2) | 编辑收藏

AVEVA PML.Net for DWG

摘要: Abstract. AVEVA PmlNet allows you to instantiate and invoke methods on .NET objects from PML proxy objects. The PML proxy objects behave just like any other PML object. By PML proxy object you can use many other C# resources easily. The paper show an example to use PML proxy object to read and write AutoCAD DXF/DWG files by the OpenDWG library in AVEVA PDMS.

Key Words. AVEVA, PDMS, Marine, Plant, OpenDWG, AutoCAD, DWG, DXF 阅读全文

posted @ 2015-08-01 09:39 eryar 阅读(4210) | 评论 (0) | 编辑收藏

OpenGL Shader in OpenCASCADE

摘要: Abstract. As implementation of one of the strategic steps in OpenCASCADE visualization component development road-map, support for GLSL shader programs has been added in OpenCASCADE Technology 6.7.0.

Key Words. OpenCASCADE, GLSL, Shader, Gooch Shader 阅读全文

posted @ 2015-07-22 23:12 eryar 阅读(3980) | 评论 (3) | 编辑收藏

A Simple OpenGL Shader Example II

摘要: Abstract. The OpenGL Shading Language syntax comes from the C family of programming languages. Tokes, identifiers, semicolons, nesting with curly braces, control-flow, and many key words look like C. GLSL provides three qualifiers which form the interfaces of the shaders to their outside world.

Key Words. OpenGL, GLSL, Qualifiers, 阅读全文

posted @ 2015-07-21 22:56 eryar 阅读(2130) | 评论 (1) | 编辑收藏

Make Helix Curve in OpenCASCADE

摘要: Abstract. 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. The paper first make a helix by Tcl in Draw Test Harness, then translate the Tcl script to OpenCASCADE C++ code.

Key Words. OpenCASCADE, Helix Curve, PCurve, Sweep, Spring 阅读全文

posted @ 2015-07-09 21:52 eryar 阅读(5258) | 评论 (15) | 编辑收藏

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