Problem in inheriting AcDbSurface in DBX project

Anonymous — Fri, 14 Aug 2020 03:48:19 GMT

Cann't we inherit AcDbSurface to derive my custom object? When my class inherit AcDbSurface or AcDbNurbsSurface, I got several error LNK2001 messages, such as "AcDbSurface::createInterferenceObjects". After I tried linking every lib provided, I still cann't compile the project.

Then I tried to inherit AcDbEntity to derive a custom object, but when AcDbSurface/AcDbNurbsSurface is instantiated as a member variable, the error LNK2001 errors show up again. So the second question is, is the AcDbSurface unavailable in DBX project?

Re: Problem in inheriting AcDbSurface in DBX project

moogalm — Fri, 14 Aug 2020 04:10:07 GMT

Applications should not derive classes from the following:

AcDbDimension
AcDbSymbolTable, AcDbSymbolTableRecord, and all classes derived from them
AcDbBlockBegin
AcDbBlockEnd
AcDbSequenceEnd
AcDbSequenceEnd
AcDb2dPolyline
AcDb2dVertex
AcDb3dPolyline
AcDb3dPolylineVertex
AcDbPolygonMesh
AcDbPolygonMeshVertex
AcDbPolyFaceMesh
AcDbPolyFaceMeshVertex
AcDbFaceRecord
AcDbMInsertBlock
AcDbVertex

Apart from above list, deriving from AcDbSurface should be doable, these are some derived class

AcDbExtrudedSurface
AcDbLoftedSurface
AcDbPlaneSurface
AcDbRevolvedSurface
AcDbSweptSurface

Which version of AutoCAD you are using ?, if it is AutoCAD 2021, you may need to link acgeomEnt.lib, and also you need to load AcGeomEntObj.dbx

Re: Problem in inheriting AcDbSurface in DBX project

Anonymous — Fri, 14 Aug 2020 05:51:33 GMT

Thanks for your answering. Then how can I derive from the AcDbNurbSurface? I'm using ObjectArx 2021, and I created a DBX project using the arx wizard, and derived a custom object from AcDbEntity using the "ArxWizCustomObject" wizard in VS 2019 (because there is no AcDbNurbSurface, nor AcDbSurface in the opition of the wizard). Then I modified the codes generated manually to inherit AcDbNurbSurface.

#pragma comment(lib, "acgeomEnt.lib") is used to link acgeomEnt.lib. And I got the following link error

1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::createInterferenceObjects(class AcArray<class AcDbEntity *,class AcArrayMemCopyReallocator<class AcDbEntity *> > &,class AcDbEntity *,unsigned int)const " (?createInterferenceObjects@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@AEAV?$AcArray@PEAVAcDbEntity@@V?$AcArrayMemCopyReallocator@PEAVAcDbEntity@@@@@@PEAVAcDbEntity@@I@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::booleanUnion(class AcDbSurface const *,class AcDbSurface * &)" (?booleanUnion@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBV1@AEAPEAV1@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::booleanSubtract(class AcDbSurface const *,class AcDbSurface * &)" (?booleanSubtract@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBV1@AEAPEAV1@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::booleanSubtract(class AcDb3dSolid const *,class AcDbSurface * &)" (?booleanSubtract@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBVAcDb3dSolid@@AEAPEAV1@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::booleanIntersect(class AcDbSurface const *,class AcArray<class AcDbEntity *,class AcArrayMemCopyReallocator<class AcDbEntity *> > &)" (?booleanIntersect@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBV1@AEAV?$AcArray@PEAVAcDbEntity@@V?$AcArrayMemCopyReallocator@PEAVAcDbEntity@@@@@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::booleanIntersect(class AcDb3dSolid const *,class AcArray<class AcDbEntity *,class AcArrayMemCopyReallocator<class AcDbEntity *> > &)" (?booleanIntersect@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBVAcDb3dSolid@@AEAV?$AcArray@PEAVAcDbEntity@@V?$AcArrayMemCopyReallocator@PEAVAcDbEntity@@@@@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::imprintEntity(class AcDbEntity const *)" (?imprintEntity@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBVAcDbEntity@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::createSectionObjects(class AcGePlane const &,class AcArray<class AcDbEntity *,class AcArrayMemCopyReallocator<class AcDbEntity *> > &)const " (?createSectionObjects@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@AEBVAcGePlane@@AEAV?$AcArray@PEAVAcDbEntity@@V?$AcArrayMemCopyReallocator@PEAVAcDbEntity@@@@@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::sliceByPlane(class AcGePlane const &,class AcDbSurface * &,class AcDbSurface * &)" (?sliceByPlane@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@AEBVAcGePlane@@AEAPEAV1@1@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::sliceBySurface(class AcDbSurface const *,class AcDbSurface * &,class AcDbSurface * &)" (?sliceBySurface@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEBV1@AEAPEAV1@1@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::chamferEdges(class AcArray<class AcDbSubentId *,class AcArrayMemCopyReallocator<class AcDbSubentId *> > const &,class AcDbSubentId const &,double,double)" (?chamferEdges@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@AEBV?$AcArray@PEAVAcDbSubentId@@V?$AcArrayMemCopyReallocator@PEAVAcDbSubentId@@@@@@AEBVAcDbSubentId@@NN@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::filletEdges(class AcArray<class AcDbSubentId *,class AcArrayMemCopyReallocator<class AcDbSubentId *> > const &,class AcArray<double,class AcArrayMemCopyReallocator<double> > const &,class AcArray<double,class AcArrayMemCopyReallocator<double> > const &,class AcArray<double,class AcArrayMemCopyReallocator<double> > const &)" (?filletEdges@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@AEBV?$AcArray@PEAVAcDbSubentId@@V?$AcArrayMemCopyReallocator@PEAVAcDbSubentId@@@@@@AEBV?$AcArray@NV?$AcArrayMemCopyReallocator@N@@@@11@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::setSubentColor(class AcDbSubentId const &,class AcCmColor const &)" (?setSubentColor@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@AEBVAcDbSubentId@@AEBVAcCmColor@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::getSubentColor(class AcDbSubentId const &,class AcCmColor &)const " (?getSubentColor@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@AEBVAcDbSubentId@@AEAVAcCmColor@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::setSubentMaterial(class AcDbSubentId const &,class AcDbObjectId const &)" (?setSubentMaterial@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@AEBVAcDbSubentId@@AEBVAcDbObjectId@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::getSubentMaterial(class AcDbSubentId const &,class AcDbObjectId &)const " (?getSubentMaterial@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@AEBVAcDbSubentId@@AEAVAcDbObjectId@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::setSubentMaterialMapper(class AcDbSubentId const &,class AcGiMapper const &)" (?setSubentMaterialMapper@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@AEBVAcDbSubentId@@AEBVAcGiMapper@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::getSubentMaterialMapper(class AcDbSubentId const &,class AcGiMapper &)const " (?getSubentMaterialMapper@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@AEBVAcDbSubentId@@AEAVAcGiMapper@@@Z) 1>igaShell.obj : error LNK2019: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::dwgInFields(class AcDbDwgFiler *)" (?dwgInFields@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEAVAcDbDwgFiler@@@Z)，函数 "public: virtual enum Acad::ErrorStatus __cdecl igaShell::dwgInFields(class AcDbDwgFiler *)" (?dwgInFields@igaShell@@UEAA?AW4ErrorStatus@Acad@@PEAVAcDbDwgFiler@@@Z) 中引用了该符号 1>igaShell.obj : error LNK2019: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::dwgOutFields(class AcDbDwgFiler *)const " (?dwgOutFields@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@PEAVAcDbDwgFiler@@@Z)，函数 "public: virtual enum Acad::ErrorStatus __cdecl igaShell::dwgOutFields(class AcDbDwgFiler *)const " (?dwgOutFields@igaShell@@UEBA?AW4ErrorStatus@Acad@@PEAVAcDbDwgFiler@@@Z) 中引用了该符号 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::dxfInFields(class AcDbDxfFiler *)" (?dxfInFields@AcDbSurface@@UEAA?AW4ErrorStatus@Acad@@PEAVAcDbDxfFiler@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::dxfOutFields(class AcDbDxfFiler *)const " (?dxfOutFields@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@PEAVAcDbDxfFiler@@@Z) 1>igaShell.obj : error LNK2001: unresolved external symbol "public: virtual enum Acad::ErrorStatus __cdecl AcDbSurface::getPlane(class AcGePlane &,enum AcDb::Planarity &)const " (?getPlane@AcDbSurface@@UEBA?AW4ErrorStatus@Acad@@AEAVAcGePlane@@AEAW4Planarity@AcDb@@@Z)

The header and cpp files of the custom object are attached blow.

Re: Problem in inheriting AcDbSurface in DBX project

moogalm — Fri, 14 Aug 2020 07:27:02 GMT

Hi,

I initially believe it is case in AutoCAD 2021,

But going back to previous release, deriving from AcDbSurface never possible, we didn't push the relevant libraries to public SDK.

I will get back to you on this.

Re: Problem in inheriting AcDbSurface in DBX project

moogalm — Fri, 14 Aug 2020 09:09:34 GMT

Thanks I raised a Documentation ticket with Help and Learning team.

Re: Problem in inheriting AcDbSurface in DBX project

Anonymous — Fri, 14 Aug 2020 09:18:08 GMT

Thanks a lot. You mean it's a bug? Please inform me when it's fixed 😘

Re: Problem in inheriting AcDbSurface in DBX project

moogalm — Fri, 14 Aug 2020 09:27:59 GMT

No, I don't mean it is bug 😊, after investigating I realized AcDbSurface was never designed to be inheritable, it is just this piece is missing in our documentation, next time when a developer would like to create a custom entity they can always check this link what Entities can be derived and not.

Re: Problem in inheriting AcDbSurface in DBX project

Anonymous — Fri, 14 Aug 2020 09:31:07 GMT

OK, looks like I have to find an alternative solution. Thanks all the same.

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Problem in inheriting AcDbSurface in DBX project

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