topic Betreff: Compilation failed in ObjectARX Forum

Compilation failed

1127204185 — Tue, 20 May 2025 06:48:58 GMT

// 将3D实体转换为多边形网格 static void Rivilis3DSolidToPolyMesh() { ads_name en; ads_point pt; // 选择实体 if (acedEntSel(_T("\n选择3DSolid:"), en, pt) != RTNORM) return; AcDbObjectId eid; if (acdbGetObjectId(eid, en) != Acad::eOk) return; // 打开3D实体 AcDbObjectPointer<AcDb3dSolid> p3DSolid(eid, AcDb::kForRead); if (p3DSolid.openStatus() != Acad::eOk) { acutPrintf(_T("\n打开实体失败!")); return; } // 获取实体范围 AcDbExtents ext; if (p3DSolid->getGeomExtents(ext) != Acad::eOk) return; double dLength = ext.minPoint().distanceTo(ext.maxPoint()); // 创建Brep对象 AcBrBrep brp; if (brp.set(*p3DSolid) != AcBr::eOk) { acutPrintf(_T("\n创建Brep失败")); return; } // 设置网格参数 AcBrMesh2dControl mc; mc.setDistTol(dLength / 100.0); mc.setElementShape(AcBr::kAllTriangles); // 创建网格过滤器 AcBrMesh2dFilter mf; const AcBrEntity* pMeshEnt = (AcBrEntity*)&brp; //mf.insert(std::make_pair(pMeshEnt, mc)); // 显式使用 std:: // 生成网格 AcBrMesh2d brepMesh; if (brepMesh.generate(mf) != AcBr::eOk) { acutPrintf(_T("\n生成网格失败")); return; } // 创建多边形网格对象 AcDbPolyFaceMesh* pMesh = new AcDbPolyFaceMesh(); pMesh->setDatabaseDefaults(); pMesh->setColorIndex(2); // 添加到当前空间 AcDbBlockTableRecordPointer pBtr(acdbCurDwg()->currentSpaceId(), AcDb::kForWrite); if (pBtr.openStatus() != Acad::eOk) { delete pMesh; return; } if (pBtr->appendAcDbEntity(pMesh) != Acad::eOk) { delete pMesh; return; } // 准备顶点查找表 AcGePoint3dArray arrVertexLookup; arrVertexLookup.setPhysicalLength(10000); arrVertexLookup.append(AcGePoint3d::kOrigin); // 占位 // 遍历网格元素 AcBrMesh2dElement2dTraverser meshElemTrav; for (AcBr::ErrorStatus ebr = meshElemTrav.setMesh(brepMesh); !meshElemTrav.done(); ebr = meshElemTrav.next()) { if (ebr != AcBr::eOk) { pMesh->erase(); return; } // 获取元素 AcBrElement2d elem; if (meshElemTrav.getElement(elem) != AcBr::eOk) { pMesh->erase(); return; } // 遍历节点 AcBrElement2dNodeTraverser elemNodeTrav; for (ebr = elemNodeTrav.setElement(elem); !elemNodeTrav.done(); ebr = elemNodeTrav.next()) { if (ebr != AcBr::eOk) { pMesh->erase(); return; } // 获取节点坐标 AcBrNode node; if (elemNodeTrav.getNode(node) != AcBr::eOk) { pMesh->erase(); return; } AcGePoint3d ptNode; if (node.getPoint(ptNode) != AcBr::eOk) { pMesh->erase(); return; } // 添加顶点 if (!arrVertexLookup.contains(ptNode)) { AcDbPolyFaceMeshVertex* pVert = new AcDbPolyFaceMeshVertex(); pVert->setPosition(ptNode); pMesh->appendVertex(pVert); pVert->close(); arrVertexLookup.append(ptNode); } } } // 创建面记录 for (AcBr::ErrorStatus ebr = meshElemTrav.setMesh(brepMesh); !meshElemTrav.done(); ebr = meshElemTrav.next()) { if (ebr != AcBr::eOk) { pMesh->erase(); return; } // 获取元素 AcBrElement2d elem; if (meshElemTrav.getElement(elem) != AcBr::eOk) { pMesh->erase(); return; } // 收集顶点 AcGePoint3dArray arrPts; AcBrElement2dNodeTraverser elemNodeTrav; for (ebr = elemNodeTrav.setElement(elem); !elemNodeTrav.done(); ebr = elemNodeTrav.next()) { if (ebr != AcBr::eOk) { pMesh->erase(); return; } AcBrNode node; if (elemNodeTrav.getNode(node) != AcBr::eOk) { pMesh->erase(); return; } AcGePoint3d ptNode; if (node.getPoint(ptNode) != AcBr::eOk) { pMesh->erase(); return; } arrPts.append(ptNode); } // 查找顶点索引 int nV0 = 0, nV1 = 0, nV2 = 0, nV3 = 0; arrVertexLookup.find(arrPts[0], nV0); arrVertexLookup.find(arrPts[1], nV1); arrVertexLookup.find(arrPts[2], nV2); if (arrPts.length() == 4) { arrVertexLookup.find(arrPts[3], nV3); } // 创建面记录 AcDbFaceRecord* pFace = new AcDbFaceRecord(nV0, nV1, nV2, nV3); if (pMesh->appendFaceRecord(pFace) != Acad::eOk) { delete pFace; pMesh->erase(); return; } pFace->close(); } pMesh->close(); }

Betreff: Compilation failed

tbrammer — Tue, 20 May 2025 13:23:32 GMT

Please post the compiler/linker errors or the whole project.

Betreff: Compilation failed

1127204185 — Wed, 21 May 2025 01:01:51 GMT

Thank you for your help!

Re: Compilation failed

daniel_cadext — Wed, 21 May 2025 03:46:37 GMT

your using brep,

//#define _BREP_SUPPORT_ //- Support for the BRep API

should be

#define _BREP_SUPPORT_ //- Support fo

you may have to include the path to the brep sdk in your project, I didn't check that

Betreff: Compilation failed

tbrammer — Wed, 21 May 2025 09:21:34 GMT

I get the compiler error:

error C2664: 'iterator AcBrMesh2dFilter::insert(const value_type &)': cannot convert argument 1 from 'std::pair<const AcBrEntity *,AcBrMesh2dControl>' to 'const value_type &'

Solution: replace the line

mf.insert(make_pair(pMeshEnt, mc));

with

mf.insert(::make_pair(pMeshEnt, mc)); // TB add :: to use global scope

This is a tricky one. In your source acrxEntryPoint.cpp you wrote

using namespace std;

Which causes the line

mf.insert(make_pair(pMeshEnt, mc));

To use std::make_pair(). But brmesh2d.h defines the function that is required here:

inline pair make_pair(const AcBrEntity*& entity, const AcBrMesh2dControl& control) { return pair(entity, control); }

Betreff: Compilation failed

1127204185 — Sat, 24 May 2025 00:12:32 GMT

1>acrxEntryPoint.obj : error LNK2019: 无法解析的外部符号 "public: __cdecl AcBrMesh2dControl::AcBrMesh2dControl(void)" (??0AcBrMesh2dControl@@QEAA@XZ)，函数 "void __cdecl `dynamic initializer for 'AcBrMesh2dControlDefault''(void)" (??__EAcBrMesh2dControlDefault@@YAXXZ) 中引用了该符号
1>acrxEntryPoint.obj : error LNK2019: 无法解析的外部符号 "public: virtual __cdecl AcBrMesh2dControl::~AcBrMesh2dControl(void)" (??1AcBrMesh2dControl@@UEAA@XZ)，函数 "void __cdecl `dynamic atexit destructor for 'AcBrMesh2dControlDefault''(void)" (??__FAcBrMesh2dControlDefault@@YAXXZ) 中引用了该符号
Thank you, there's still this question.

Betreff: Compilation failed

tbrammer — Wed, 25 Jun 2025 07:19:56 GMT

Sorry for very late reply. Your project compiles and links ok for me.

If you have set #define _BREP_SUPPORT_ before #include "arxHeaders.h" in your stdafx.h all required BREP libs should be linked.

Try to set the project setting Linker->General->Show Progress to /VERBOSE:lib and watch the linker output.
I my case the ARX SDK dir is "X:\ObjectARX 2024" and the output looks like this:

1> Searching X:\ObjectARX 2024\\lib-x64\axdb.lib: 1> Searching X:\ObjectARX 2024\\utils\brep\lib-x64\acgex24.lib: <--- 1> Searching X:\ObjectARX 2024\\utils\brep\lib-x64\acbr24.lib: <--- 1> Searching X:\ObjectARX 2024\\lib-x64\acdbmgd.lib: 1> Searching X:\ObjectARX 2024\\lib-x64\aNav.lib: 1> Searching X:\ObjectARX 2024\\lib-x64\AcTc.lib: 1> Searching X:\ObjectARX 2024\\lib-x64\AcTcUi.lib: 1> Searching X:\ObjectARX 2024\\lib-x64\AcFdUi.lib: 1> Searching X:\ObjectARX 2024\\lib-x64\AcFdEval.lib: