zhyang-dev/openfoam
1
0
Fork 0
mirror of https://develop.openfoam.com/Development/openfoam.git synced 2025-11-28 03:28:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

BUG: incorrect Nastran surface output and segmentation faults #1571

Browse Source 
- indexing error in the output of values resulted in uniform output in
  most cases.

- allocation error for on-the-fly triangulation

ENH: changed decomposed storage from DynamicList to plain faceList for
clearer allocation control and better overhead
This commit is contained in:
Mark Olesen
2020-01-27 11:04:25 +01:00
parent e91dbcf834
commit fce7948915
3 changed files with 49 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
src/surfMesh/writers/nastran/nastranSurfaceWriter.C
View File

@ -6,7 +6,7 @@
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2012-2016 OpenFOAM Foundation
Copyright (C) 2015-2019 OpenCFD Ltd.
Copyright (C) 2015-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -129,8 +129,8 @@ void Foam::surfaceWriters::nastranWriter::writeFace
Ostream& os,
const word& faceType,
const labelUList& facePts,
const label nFace,
const label PID
const label elemId,
const label propId
) const
{
// Only valid surface elements are CTRIA3 and CQUAD4
@ -147,12 +147,12 @@ void Foam::surfaceWriters::nastranWriter::writeFace
// For CTRIA3 elements, cols 7 onwards are not used
writeKeyword(os, faceType) << separator_;
writeKeyword(os, faceType) << separator_;
os.setf(std::ios_base::right);
writeValue(os, nFace) << separator_;
writeValue(os, PID);
writeValue(os, elemId) << separator_;
writeValue(os, propId);
switch (writeFormat_)
{
@ -204,7 +204,7 @@ void Foam::surfaceWriters::nastranWriter::writeGeometry
(
Ostream& os,
const meshedSurf& surf,
List<DynamicList<face>>& decomposedFaces
List<faceList>& decomposedFaces
) const
{
const pointField& points = surf.points();
@ -222,42 +222,46 @@ void Foam::surfaceWriters::nastranWriter::writeGeometry
writeCoord(os, points[pointi], pointi);
}
// Write faces
// Write faces, with on-the-fly decomposition (triangulation)
decomposedFaces.clear();
decomposedFaces.setSize(faces.size());
decomposedFaces.resize(faces.size());
os << "$" << nl
<< "$ Faces" << nl
<< "$" << nl;
label nFace = 0; // the element-id
label elemId = 0; // The element-id
forAll(faces, facei)
{
const face& f = faces[facei];
faceList& decomp = decomposedFaces[facei];
// 1-offset for PID
const label PID = 1 + (facei < zones.size() ? zones[facei] : 0);
const label propId = 1 + (facei < zones.size() ? zones[facei] : 0);
if (f.size() == 3)
{
writeFace(os, "CTRIA3", f, ++nFace, PID);
decomposedFaces[facei].append(f);
writeFace(os, "CTRIA3", f, ++elemId, propId);
decomp.resize(1);
decomp[0] = f;
}
else if (f.size() == 4)
{
writeFace(os, "CQUAD4", f, ++nFace, PID);
decomposedFaces[facei].append(f);
writeFace(os, "CQUAD4", f, ++elemId, propId);
decomp.resize(1);
decomp[0] = f;
}
else
{
// Decompose poly face into tris
label nTri = 0;
faceList triFaces;
f.triangles(points, nTri, triFaces);
decomp.resize(f.nTriangles());
forAll(triFaces, trii)
label nTri = 0;
f.triangles(points, nTri, decomp);
for (const face& f2 : decomp)
{
writeFace(os, "CTRIA3", triFaces[trii], ++nFace, PID);
decomposedFaces[facei].append(triFaces[trii]);
writeFace(os, "CTRIA3", f2, ++elemId, propId);
}
}
}
@ -275,7 +279,7 @@ Foam::Ostream& Foam::surfaceWriters::nastranWriter::writeFooter
labelList pidsUsed = labelHashSet(surf.zoneIds()).sortedToc();
if (pidsUsed.empty())
{
pidsUsed.setSize(1, Zero); // fallback
pidsUsed.resize(1, Zero); // fallback
}
for (auto pid : pidsUsed)
@ -431,7 +435,7 @@ Foam::fileName Foam::surfaceWriters::nastranWriter::write()
<< "$" << nl
<< "BEGIN BULK" << nl;
List<DynamicList<face>> decomposedFaces;
List<faceList> decomposedFaces;
writeGeometry(os, surf, decomposedFaces);
writeFooter(os, surf)

16
src/surfMesh/writers/nastran/nastranSurfaceWriter.H
View File

@ -6,7 +6,7 @@
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2012-2016 OpenFOAM Foundation
Copyright (C) 2015-2019 OpenCFD Ltd.
Copyright (C) 2015-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -151,8 +151,8 @@ private:
Ostream& os,
const word& faceType,
const labelUList& facePts,
const label EID, //!< 1-based Element Id
const label PID //!< 1-based Property Id
const label elemId, //!< 1-based Element Id
const label propId //!< 1-based Property Id
) const;
//- Main driver to write the surface mesh geometry
@ -160,7 +160,7 @@ private:
(
Ostream& os,
const meshedSurf& surf,
List<DynamicList<face>>& decomposedFaces
List<faceList>& decomposedFaces
) const;
//- Write the formatted keyword to the output stream
@ -184,7 +184,7 @@ private:
Ostream& os,
const loadFormat format,
const Type& value,
const label EID //!< 1-based Element Id
const label elemId //!< 1-based Element Id
) const;
@ -199,16 +199,16 @@ private:
public:
//- Runtime type information
//- Declare type-name, virtual type (with debug switch)
TypeNameNoDebug("nastran");
// Constructors
//- Construct null
//- Default construct. Default SHORT format
nastranWriter();
//- Construct with some output options
//- Construct with some output options. Default LONG format
explicit nastranWriter(const dictionary& options);
//- Construct from components

25
src/surfMesh/writers/nastran/nastranSurfaceWriterImpl.C
View File

@ -6,7 +6,7 @@
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2012-2016 OpenFOAM Foundation
Copyright (C) 2015-2019 OpenCFD Ltd.
Copyright (C) 2015-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -70,7 +70,7 @@ Foam::Ostream& Foam::surfaceWriters::nastranWriter::writeFaceValue
Ostream& os,
const loadFormat format,
const Type& value,
const label EID
const label elemId
) const
{
// Fixed short/long formats supporting PLOAD2 and PLOAD4:
@ -87,7 +87,7 @@ Foam::Ostream& Foam::surfaceWriters::nastranWriter::writeFaceValue
// 3 EID : element ID
// 4 onwards : load values
label SID = 1;
const label setId = 1;
Type scaledValue = scale_*value;
@ -98,7 +98,7 @@ Foam::Ostream& Foam::surfaceWriters::nastranWriter::writeFaceValue
// Write load set ID
os.setf(std::ios_base::right);
writeValue(os, SID) << separator_;
writeValue(os, setId) << separator_;
switch (format)
{
@ -119,13 +119,13 @@ Foam::Ostream& Foam::surfaceWriters::nastranWriter::writeFaceValue
writeValue(os, scalar(0)) << separator_;
}
writeValue(os, EID);
writeValue(os, elemId);
break;
}
case loadFormat::PLOAD4 :
{
writeValue(os, EID);
writeValue(os, elemId);
for (direction d = 0; d < pTraits<Type>::nComponents; ++d)
{
@ -197,7 +197,7 @@ Foam::fileName Foam::surfaceWriters::nastranWriter::writeTemplate
mkDir(outputFile.path());
}
const scalar timeValue = 0.0;
const scalar timeValue(0);
OFstream os(outputFile);
fileFormats::NASCore::setPrecision(os, writeFormat_);
@ -214,7 +214,7 @@ Foam::fileName Foam::surfaceWriters::nastranWriter::writeTemplate
<< "$" << nl
<< "BEGIN BULK" << nl;
List<DynamicList<face>> decomposedFaces;
List<faceList> decomposedFaces;
writeGeometry(os, surf, decomposedFaces);
os << "$" << nl
@ -225,7 +225,7 @@ Foam::fileName Foam::surfaceWriters::nastranWriter::writeTemplate
if (this->isPointData())
{
for (const DynamicList<face>& dFaces : decomposedFaces)
for (const faceList& dFaces : decomposedFaces)
{
for (const face& f : dFaces)
{
@ -243,12 +243,15 @@ Foam::fileName Foam::surfaceWriters::nastranWriter::writeTemplate
}
else
{
for (const DynamicList<face>& dFaces : decomposedFaces)
auto valIter = values.cbegin();
for (const faceList& dFaces : decomposedFaces)
{
forAll(dFaces, facei)
{
writeFaceValue(os, format, values[facei], ++elemId);
writeFaceValue(os, format, *valIter, ++elemId);
}
++valIter;
}
}