Compilation failed

[1127204185]

	// 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();
	}
 

[tbrammer]

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

[1127204185]

Thank you for your help!

[daniel_cadext]

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

[tbrammer]

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); }

[1127204185]

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.

[tbrammer · Accepted solution]

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: