84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
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// All rays expressed as start face (local) index end end face (global)
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// Pre-size by assuming a certain percentage is visible.
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// Maximum lenght for dynamicList
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const label maxDynListLength = 10000;
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for (label procI = 0; procI < Pstream::nProcs(); procI++)
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{
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// Shoot rays from me to procI. Note that even if processor has
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// 0 faces we still need to call findLine to keep calls synced.
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DynamicField<point> start(coarseMesh.nFaces());
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DynamicField<point> end(start.size());
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DynamicList<label> startIndex(start.size());
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DynamicList<label> endIndex(start.size());
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const pointField& myFc = remoteCoarseCf[Pstream::myProcNo()];
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const vectorField& myArea = remoteCoarseSf[Pstream::myProcNo()];
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const pointField& remoteArea = remoteCoarseSf[procI];
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const pointField& remoteFc = remoteCoarseCf[procI];
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label i = 0;
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label j = 0;
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do
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{
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for (; i < myFc.size(); i++)
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{
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const point& fc = myFc[i];
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const vector& fA = myArea[i];
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for (; j < remoteFc.size(); j++)//
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{
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if (procI != Pstream::myProcNo() || i != j)
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{
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const point& remFc = remoteFc[j];
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const vector& remA = remoteArea[j];
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const vector& d = remFc - fc;
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if (((d & fA) < 0.) && ((d & remA) > 0))
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{
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start.append(fc + 0.0001*d);
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startIndex.append(i);
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end.append(fc + 0.9999*d);
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label globalI = globalNumbering.toGlobal(procI, j);
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endIndex.append(globalI);
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if (startIndex.size() > maxDynListLength)
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{
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break;
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}
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}
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}
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}
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if (startIndex.size() > maxDynListLength)
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{
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break;
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}
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if (j == remoteFc.size())
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{
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j = 0;
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}
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}
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List<pointIndexHit> hitInfo(startIndex.size());
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surfacesMesh.findLine(start, end, hitInfo);
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forAll (hitInfo, rayI)
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{
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if (!hitInfo[rayI].hit())
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{
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rayStartFace.append(startIndex[rayI]);
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rayEndFace.append(endIndex[rayI]);
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}
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}
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start.clear();
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startIndex.clear();
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end.clear();
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endIndex.clear();
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} while (returnReduce(i < myFc.size(), orOp<bool>()));
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}
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