OpenFOAM三维计算结果映射到二维平面
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请问大家知道如何在OpenFOAM中将计算完成的三维结果映射到其内部的一个二维平面么？比如图1中三维线图的流场信息（754万多面体网格）如何映射到正方形平面上，这样就能通过代码单独分析该平面上的数据了。目前代码难以在三维计算域执行，而且仅适用于OF默认格式的文件，所以sample方法在此处也难以应用。
我现在尝试了方法是这样的：
1）针对正方形平面画完二维网格（厚度方向为1个网格，总网格数量8160，所有平面均建立一个part内）后，单独建立个被映射算例目录，里面包含0时刻和最新时刻的文件，system中也包含mapFieldsDict文件，文件信息如图2所示。
2）将system中controlDict中startTime 改为要映射的时刻。
3）在被映射算例目下，建立映射时刻文件夹，里面建立个组分C2H2的文件进行尝试，文件内容如图3所示。
4）输入命令：mapField <源文件目录>，运行记录和错误如下所示。
log文件/*---------------------------------------------------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 8 \\/ M anipulation | \*---------------------------------------------------------------------------*/ Build : 8 Exec : mapFields /scratch/users/nus/e0920926/OF6/MS-TDAC Date : Apr 19 2022 Time : 11:06:22 Host : "std0120" PID : 13053 I/O : uncollated Case : /scratch/users/nus/e0920926/OF5/CE nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10) allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Source: "/scratch/users/nus/e0920926/OF6" "MS-TDAC" Target: "/scratch/users/nus/e0920926/OF5" "CE" Create databases as time --> FOAM Warning : From function virtual void Foam::Time::readDict() in file db/Time/TimeIO.C at line 408 Reading "/scratch/users/nus/e0920926/OF6/MS-TDAC/system/controlDict" from line 18 to line 169 Selecting compressed binary is inefficient and ineffective, resetting to uncompressed binary --> FOAM Warning : From function virtual void Foam::Time::readDict() in file db/Time/TimeIO.C at line 408 Reading "/scratch/users/nus/e0920926/OF5/CEMA/system/controlDict" from line 18 to line 155 Selecting compressed binary is inefficient and ineffective, resetting to uncompressed binary Source time: 0.110675 Target time: 0.110675 Create meshes Source mesh size: 7547729 Target mesh size: 8160 --> FOAM Warning : From function Foam::triFace Foam::tetIndices::faceTriIs(const Foam::polyMesh&) const in file meshes/polyMesh/polyMeshTetDecomposition/tetIndicesI.H at line 76 No base point for face 41258162, 6(32185316 32185317 31764850 30956255 31547018 30861795), produces a valid tet decomposition. --> FOAM Warning : From function Foam::triFace Foam::tetIndices::faceTriIs(const Foam::polyMesh&) const in file meshes/polyMesh/polyMeshTetDecomposition/tetIndicesI.H at line 76 No base point for face 41258164, 4(30956255 31764850 31416084 31554407), produces a valid tet decomposition. --> FOAM Warning : From function Foam::triFace Foam::tetIndices::faceTriIs(const Foam::polyMesh&) const in file meshes/polyMesh/polyMeshTetDecomposition/tetIndicesI.H at line 76 No base point for face 41258167, 4(32569102 32165258 31326296 31085982), produces a valid tet decomposition. --> FOAM Warning : From function Foam::triFace Foam::tetIndices::faceTriIs(const Foam::polyMesh&) const in file meshes/polyMesh/polyMeshTetDecomposition/tetIndicesI.H at line 76 No base point for face 41258168, 6(30957345 31326296 32165258 32289540 31184503 31851659), produces a valid tet decomposition. --> FOAM Warning : From function Foam::triFace Foam::tetIndices::faceTriIs(const Foam::polyMesh&) const in file meshes/polyMesh/polyMeshTetDecomposition/tetIndicesI.H at line 76 No base point for face 5862791, 4(9594118 11818146 4123357 11818190), produces a valid tet decomposition. Mapping fields for time 0.110675 interpolating C2H2err文件 --> FOAM FATAL IO ERROR: wrong token type - expected Scalar, found on line 24 the punctuation token ')' file: /scratch/users/nus/e0920926/OF5/CEMA/0.110675/C2H2 at line 24. From function Foam::Istream& Foam::operator>>(Foam::Istream&, Foam::doubleScalar&) in file lnInclude/Scalar.C at line 101. FOAM exiting针对报错信息，修改了图3中内容好多次，依然无法消除这个错误。请问大家有什么好的解决方法么？
