Open CASCADE学习|为什么由Edge生成Wire不成功？

2024-02-21 12:04
文章标签 学习 生成 open wire 成功 cascade edge

本文主要是介绍Open CASCADE学习|为什么由Edge生成Wire不成功？，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

Wire 是一种复合形状，不是由几何形状构建的，而是由边缘的装配构建的。BRepBuilderAPI_MakeWire类可以从一个或多个Edge构建Wire，或将新Edge连接到现有Wire。

 BRepBuilderAPI_MakeWire 类将Edge连接到Wire。添加新Edge时，如果其顶点之一与Wire共享，则认为它已连接到Wire。如果没有共享顶点，则算法会搜索边的一个顶点和Wire的一个顶点，这两个顶点位于同一位置（使用顶点的公差来测试它们是否具有相同的位置）。如果找到这样的一对顶点，则将Edge与Wire的顶点一起复制，以替换原始顶点。Edge的所有顶点都可以与Wire的顶点交换。如果找不到连接，则认为Wire已断开连接。这是一个错误。

BRepBuilderAPI_MakeWire 类可以返回添加到Wire上的最后一条边（Edge 方法）。如果复制了这条Edge，则它可能与原始Edge不同。

#include <Geom_CylindricalSurface.hxx>
#include <gp_Ax3.hxx>
#include <GeomAPI_Interpolate.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <GCE2d_MakeSegment.hxx>
​
#include <GeomAPI_PointsToBSpline.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <GC_MakeCircle.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <BRepOffsetAPI_MakePipe.hxx>
#include <GC_MakeArcOfCircle.hxx>
#include <BRepAlgoAPI_Fuse.hxx>
​
#include <gp_GTrsf.hxx>
#include <BRepBuilderAPI_Transform.hxx>
​
#include"Viewer.h"
​
#include <BRepPrimAPI_MakeCylinder.hxx>
#include <BRepBuilderAPI_MakePolygon.hxx>
#include <BRep_Tool.hxx>
#include <TopoDS.hxx>
#include <BRepAlgoAPI_Cut.hxx>
#include <BRepAlgoAPI_Common.hxx>
#include <BRepAlgoAPI_Section.hxx>
#include"GEOMAlgo_Splitter.h"
#include <TopExp_Explorer.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <BRepBuilderAPI_MakeVertex.hxx>
​
​
int main(int argc, char* argv[])
{gp_Dir  Z(0.0, 0.0, 1.0);gp_Pnt center(0, 0, 0.0);gp_Pnt xr(0.5, 0, 0.0);gp_Pnt yr(0.0, 1.0, 0.0);gp_Pnt zr(0.0, 0.0, 7.0);gp_Ax2  wb(center, Z);gp_Circ  wbcircle(wb, 0.125 / 2);TopoDS_Edge wbe = BRepBuilderAPI_MakeEdge(wbcircle);TopoDS_Edge xline = BRepBuilderAPI_MakeEdge(center, xr);TopoDS_Edge yline = BRepBuilderAPI_MakeEdge(center, yr);TopoDS_Edge zline = BRepBuilderAPI_MakeEdge(center, zr);
​Standard_Real smallR = 0.112;Standard_Real bigR = 0.1975;Standard_Real xb = 0.0;Standard_Real yb = bigR;Standard_Real xs = 0.0105;Standard_Real ys = 0.1023;gp_Pnt p1(-0.0998, 0.0828, 0.0);gp_Pnt p2(-0.0456, 0.0053, 0.0);gp_Pnt p3(0.1637, 0.0871, 0.0);gp_Pnt p4(0.2237, 0.1471, 0.0);gp_Pnt scenter(xs, ys, 0.0);gp_Pnt bcenter(xb, yb, 0.0);gp_Ax2  sr(scenter, Z);gp_Ax2  br(bcenter, Z);gp_Circ  scircle(sr, smallR);gp_Circ  bcircle(br, bigR);TopoDS_Vertex v1 = BRepBuilderAPI_MakeVertex(p1);TopoDS_Vertex v2 = BRepBuilderAPI_MakeVertex(p2);TopoDS_Vertex v3 = BRepBuilderAPI_MakeVertex(p3);TopoDS_Vertex v4 = BRepBuilderAPI_MakeVertex(p4);Handle(Geom_TrimmedCurve) sc = GC_MakeArcOfCircle(scircle, p1, p2, 1);Handle(Geom_TrimmedCurve) bc = GC_MakeArcOfCircle(bcircle, p2, p3, 1);TopoDS_Edge anEdge1 = BRepBuilderAPI_MakeEdge(sc);TopoDS_Edge anEdge2 = BRepBuilderAPI_MakeEdge(bc);TopoDS_Edge anEdge3 = BRepBuilderAPI_MakeEdge(v3, v4);TopoDS_Edge anEdge4 = BRepBuilderAPI_MakeEdge(v4, v1);//TopoDS_Wire out = BRepBuilderAPI_MakeWire(anEdge1,anEdge2);//TopoDS_Shape out1 = BRepAlgoAPI_Fuse(anEdge1, anEdge2);//TopoDS_Shape out = BRepAlgoAPI_Fuse(out1, anEdge3);TopTools_ListOfShape listEdge;listEdge.Append(anEdge4);listEdge.Append(anEdge3);listEdge.Append(anEdge2);//listEdge.Append(anEdge1);BRepBuilderAPI_MakeWire mw;mw.Add(listEdge);mw.Build();if (!mw.IsDone()){if (mw.Error() == BRepBuilderAPI_WireError::BRepBuilderAPI_EmptyWire){std::cout << "Wire failed-EmptyWire!\n";}else if (mw.Error() == BRepBuilderAPI_WireError::BRepBuilderAPI_DisconnectedWire){std::cout << "Wire failed-DisconnectedWire!\n";}else if (mw.Error() == BRepBuilderAPI_WireError::BRepBuilderAPI_NonManifoldWire){std::cout << "Wire failed-NonManifoldWire!\n";}else{std::cout << "Wire failed!\n";}}//mw.Add(anEdge3);//mw.Add(anEdge2);//mw.Add(anEdge1);//TopoDS_Shape bcut = BRepBuilderAPI_MakeFace(aCylinder->Cylinder(), TopoDS::Wire(seccut), Standard_True);//std::cout << "ok" << std::endl;Viewer vout(50, 50, 500, 500);vout << wbe;vout << xline;vout << yline;vout << zline;vout << mw;//vout << anEdge1;//vout << anEdge2;vout.StartMessageLoop();return 0;
}
​

Error 方法返回 BRepBuilderAPI_WireError 枚举中的一个术语：WireDone – 没有发生错误。

EmptyWire – 未初始化算法，使用了空构造函数。

DisconnectedWire – 最后添加的边未连接到Wire。

NonManifoldWire – 具有某种奇异性的Wire。

上述代码返回结果：Wire failed-DisconnectedWire!

表明后面添加的边未连接到Wire，也就是两个圆弧未连接线

通过以下代码输出圆弧的端点坐标，发现圆弧之间的交点距离过大，超出了容差，将距离过大的用直线连接起来，成功生成Wire。
 

#include <Geom_CylindricalSurface.hxx>
#include <gp_Ax3.hxx>
#include <GeomAPI_Interpolate.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <GCE2d_MakeSegment.hxx>
​
#include <GeomAPI_PointsToBSpline.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <GC_MakeCircle.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <BRepOffsetAPI_MakePipe.hxx>
#include <GC_MakeArcOfCircle.hxx>
#include <BRepAlgoAPI_Fuse.hxx>
​
#include <gp_GTrsf.hxx>
#include <BRepBuilderAPI_Transform.hxx>
​
#include"Viewer.h"
​
#include <BRepPrimAPI_MakeCylinder.hxx>
#include <BRepBuilderAPI_MakePolygon.hxx>
#include <BRep_Tool.hxx>
#include <TopoDS.hxx>
#include <BRepAlgoAPI_Cut.hxx>
#include <BRepAlgoAPI_Common.hxx>
#include <BRepAlgoAPI_Section.hxx>
#include <TopExp_Explorer.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <BRepBuilderAPI_MakeVertex.hxx>
​
​
int main(int argc, char* argv[])
{gp_Dir  Z(0.0, 0.0, 1.0);gp_Pnt center(0, 0, 0.0);gp_Pnt xr(0.5, 0, 0.0);gp_Pnt yr(0.0, 1.0, 0.0);gp_Pnt zr(0.0, 0.0, 7.0);gp_Ax2  wb(center, Z);gp_Circ  wbcircle(wb, 0.125 / 2);TopoDS_Edge wbe = BRepBuilderAPI_MakeEdge(wbcircle);TopoDS_Edge xline = BRepBuilderAPI_MakeEdge(center, xr);TopoDS_Edge yline = BRepBuilderAPI_MakeEdge(center, yr);TopoDS_Edge zline = BRepBuilderAPI_MakeEdge(center, zr);
​Standard_Real smallR = 0.112;Standard_Real bigR = 0.1975;Standard_Real xb = 0.0;Standard_Real yb = bigR;Standard_Real xs = 0.0105;Standard_Real ys = 0.1023;gp_Pnt p1(-0.0998, 0.0828, 0.0);gp_Pnt p2(-0.0456, 0.0053, 0.0);gp_Pnt p3(0.1637, 0.0871, 0.0);gp_Pnt p4(0.2237, 0.1471, 0.0);gp_Pnt scenter(xs, ys, 0.0);gp_Pnt bcenter(xb, yb, 0.0);gp_Ax2  sr(scenter, Z);gp_Ax2  br(bcenter, Z);gp_Circ  scircle(sr, smallR);gp_Circ  bcircle(br, bigR);TopoDS_Vertex v1 = BRepBuilderAPI_MakeVertex(p1);TopoDS_Vertex v2 = BRepBuilderAPI_MakeVertex(p2);TopoDS_Vertex v3 = BRepBuilderAPI_MakeVertex(p3);TopoDS_Vertex v4 = BRepBuilderAPI_MakeVertex(p4);Handle(Geom_TrimmedCurve) sc = GC_MakeArcOfCircle(scircle, p1, p2, 1);Standard_Real scfirstParam = sc->FirstParameter();Standard_Real sclastParam = sc->LastParameter();gp_Pnt scpf,scpl;sc->D0(scfirstParam, scpf);sc->D0(sclastParam, scpl);Handle(Geom_TrimmedCurve) bc = GC_MakeArcOfCircle(bcircle, p2, p3, 1);Standard_Real bcfirstParam = bc->FirstParameter();Standard_Real bclastParam = bc->LastParameter();gp_Pnt bcpf, bcpl;bc->D0(bcfirstParam, bcpf);bc->D0(bclastParam, bcpl);std::cout << "sc first:(" << scpf.X() << "," << scpf.Y() << "," << scpf.Z() << ")" << std::endl;std::cout << "sc last:(" << scpl.X() << "," << scpl.Y() << "," << scpl.Z() << ")" << std::endl;std::cout << "bc first:(" << bcpf.X() << "," << bcpf.Y() << "," << bcpf.Z() << ")" << std::endl;std::cout << "bc last:(" << bcpl.X() << "," << bcpl.Y() << "," << bcpl.Z() << ")" << std::endl;TopoDS_Edge anEdge1 = BRepBuilderAPI_MakeEdge(sc);TopoDS_Edge anEdge12 = BRepBuilderAPI_MakeEdge(scpl, bcpf);TopoDS_Edge anEdge2 = BRepBuilderAPI_MakeEdge(bc);TopoDS_Edge anEdge23 = BRepBuilderAPI_MakeEdge(bcpl,p3);TopoDS_Edge anEdge3 = BRepBuilderAPI_MakeEdge(v3, v4);TopoDS_Edge anEdge4 = BRepBuilderAPI_MakeEdge(v4, v1);TopoDS_Edge anEdge41 = BRepBuilderAPI_MakeEdge(p1, scpf);//TopoDS_Wire out = BRepBuilderAPI_MakeWire(anEdge1,anEdge2);//TopoDS_Shape out1 = BRepAlgoAPI_Fuse(anEdge1, anEdge2);//TopoDS_Shape out = BRepAlgoAPI_Fuse(out1, anEdge3);TopTools_ListOfShape listEdge;listEdge.Append(anEdge1);listEdge.Append(anEdge12);listEdge.Append(anEdge2);listEdge.Append(anEdge23);listEdge.Append(anEdge3);listEdge.Append(anEdge4);listEdge.Append(anEdge41);//listEdge.Append(anEdge2);//listEdge.Append(anEdge1);BRepBuilderAPI_MakeWire mw;mw.Add(listEdge);mw.Build();if (!mw.IsDone()){if (mw.Error() == BRepBuilderAPI_WireError::BRepBuilderAPI_EmptyWire){std::cout << "Wire failed-EmptyWire!\n";}else if (mw.Error() == BRepBuilderAPI_WireError::BRepBuilderAPI_DisconnectedWire){std::cout << "Wire failed-DisconnectedWire!\n";}else if (mw.Error() == BRepBuilderAPI_WireError::BRepBuilderAPI_NonManifoldWire){std::cout << "Wire failed-NonManifoldWire!\n";}else{std::cout << "Wire failed!\n";}}//mw.Add(anEdge3);//mw.Add(anEdge2);//mw.Add(anEdge1);
​//TopoDS_Shape bcut = BRepBuilderAPI_MakeFace(aCylinder->Cylinder(), TopoDS::Wire(seccut), Standard_True);//std::cout << "ok" << std::endl;Viewer vout(50, 50, 500, 500);vout << wbe;vout << xline;vout << yline;vout << zline;vout << mw;//vout << anEdge1;//vout << anEdge2;vout.StartMessageLoop();return 0;
}
​

sc first:(-0.0997897,0.0828018,0)

sc last:(-0.0455727,0.00534717,0)

bc first:(-0.0455918,0.00533436,0)

bc last:(0.163743,0.0870711,0)

这篇关于Open CASCADE学习|为什么由Edge生成Wire不成功？的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/731714。

相关文章

Java使用Javassist动态生成HelloWorld类

Java使用Javassist动态生成HelloWorld类

《Java使用Javassist动态生成HelloWorld类》Javassist是一个非常强大的字节码操作和定义库,它允许开发者在运行时创建新的类或者修改现有的类,本文将简单介绍如何使用Javass... 目录1. Javassist简介2. 环境准备3. 动态生成HelloWorld类3.1 创建CtC
阅读更多...
Python从Word文档中提取图片并生成PPT的操作代码

Python从Word文档中提取图片并生成PPT的操作代码

《Python从Word文档中提取图片并生成PPT的操作代码》在日常办公场景中,我们经常需要从Word文档中提取图片,并将这些图片整理到PowerPoint幻灯片中,手动完成这一任务既耗时又容易出错,... 目录引言背景与需求解决方案概述代码解析代码核心逻辑说明总结引言在日常办公场景中，我们经常需要从 W
阅读更多...
Unity新手入门学习殿堂级知识详细讲解（图文）

Unity新手入门学习殿堂级知识详细讲解（图文）

《Unity新手入门学习殿堂级知识详细讲解（图文）》Unity是一款跨平台游戏引擎,支持2D/3D及VR/AR开发,核心功能模块包括图形、音频、物理等,通过可视化编辑器与脚本扩展实现开发,项目结构含A... 目录入门概述什么是 UnityUnity引擎基础认知编辑器核心操作Unity 编辑器项目模式分类工程
阅读更多...
C#使用Spire.XLS快速生成多表格Excel文件

C#使用Spire.XLS快速生成多表格Excel文件

《C#使用Spire.XLS快速生成多表格Excel文件》在日常开发中,我们经常需要将业务数据导出为结构清晰的Excel文件,本文将手把手教你使用Spire.XLS这个强大的.NET组件,只需几行C#... 目录一、Spire.XLS核心优势清单1.1 性能碾压：从3秒到0.5秒的质变1.2 批量操作的优雅
阅读更多...
Python使用python-pptx自动化操作和生成PPT

Python使用python-pptx自动化操作和生成PPT

《Python使用python-pptx自动化操作和生成PPT》这篇文章主要为大家详细介绍了如何使用python-pptx库实现PPT自动化,并提供实用的代码示例和应用场景,感兴趣的小伙伴可以跟随小编... 目录使用python-pptx操作PPT文档安装python-pptx基础概念创建新的PPT文档查看
阅读更多...
Python学习笔记之getattr和hasattr用法示例详解

Python学习笔记之getattr和hasattr用法示例详解

《Python学习笔记之getattr和hasattr用法示例详解》在Python中,hasattr()、getattr()和setattr()是一组内置函数,用于对对象的属性进行操作和查询,这篇文章... 目录1.getattr用法详解1.1 基本作用1.2 示例1.3 原理2.hasattr用法详解2.
阅读更多...
在ASP.NET项目中如何使用C#生成二维码

在ASP.NET项目中如何使用C#生成二维码

《在ASP.NET项目中如何使用C#生成二维码》二维码（QRCode）已广泛应用于网址分享,支付链接等场景,本文将以ASP.NET为示例,演示如何实现输入文本/URL,生成二维码,在线显示与下载的完整... 目录创建前端页面（Index.cshtml）后端二维码生成逻辑（Index.cshtml.cs）总结
阅读更多...
Python实现数据可视化图表生成(适合新手入门)

Python实现数据可视化图表生成(适合新手入门)

《Python实现数据可视化图表生成(适合新手入门)》在数据科学和数据分析的新时代,高效、直观的数据可视化工具显得尤为重要,下面：本文主要介绍Python实现数据可视化图表生成的相关资料,文中通过... 目录前言为什么需要数据可视化准备工作基本图表绘制折线图柱状图散点图使用Seaborn创建高级图表箱线图热
阅读更多...
SQLServer中生成雪花ID(Snowflake ID)的实现方法

SQLServer中生成雪花ID(Snowflake ID)的实现方法

《SQLServer中生成雪花ID(SnowflakeID)的实现方法》：本文主要介绍在SQLServer中生成雪花ID(SnowflakeID)的实现方法,文中通过示例代码介绍的非常详细,... 目录前言认识雪花ID雪花ID的核心特点雪花ID的结构（64位）雪花ID的优势雪花ID的局限性雪花ID的应用场景
阅读更多...
Django HTTPResponse响应体中返回openpyxl生成的文件过程

Django HTTPResponse响应体中返回openpyxl生成的文件过程

《DjangoHTTPResponse响应体中返回openpyxl生成的文件过程》Django返回文件流时需通过Content-Disposition头指定编码后的文件名,使用openpyxl的sa... 目录Django返回文件流时使用指定文件名Django HTTPResponse响应体中返回openp
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2