readSeparatedPoints.C
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10 
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23 
24 Description
25  Create intermediate mesh from PROSTAR files
26 
27 \*---------------------------------------------------------------------------*/
28 
29 #include "starMesh.H"
30 #include "IFstream.H"
31 
32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
33 
34 void Foam::starMesh::readPoints(const scalar scaleFactor)
35 {
36  label nPoints = 0;
37  label maxLabel = -1;
38 
39  fileName pointsFileName(casePrefix_ + ".vrt");
40 
41  {
42  IFstream pointsFile(pointsFileName);
43 
44  // Pass 1: get # points and maximum vertex label
45 
46  if (pointsFile.good())
47  {
48  label pointLabel;
49  scalar x, y, z;
50 
51  maxLabel = -1;
52  while ((pointsFile >> pointLabel).good())
53  {
54  nPoints++;
55  maxLabel = max(maxLabel, pointLabel);
56  pointsFile >> x >> y >> z;
57  }
58  }
59  else
60  {
62  << "Cannot read file " << pointsFileName
63  << abort(FatalError);
64  }
65  }
66 
67  Info<< "Number of points = " << nPoints << endl << endl;
68 
69  points_.setSize(nPoints);
70  starPointIndex_.setSize(nPoints);
71 
72  // Reset STAR point ID, just in case
73  starPointIndex_ = -1;
74 
75  starPointLabelLookup_.setSize(maxLabel+1);
76 
77  // reset point labels to invalid value
78  starPointLabelLookup_ = -1;
79 
80  if (nPoints > 0)
81  {
82  // Pass 2: construct pointlist and conversion table
83  // from Star vertex numbers to Foam pointLabels
84 
85  IFstream pointsFile(pointsFileName);
86  label pointLabel;
87 
88  forAll(points_, p)
89  {
90  pointsFile
91  >> pointLabel
92  >> points_[p].x()
93  >> points_[p].y()
94  >> points_[p].z();
95 
96  starPointIndex_[p] = pointLabel;
97  starPointLabelLookup_[pointLabel] = p;
98  }
99 
100  if (scaleFactor > 1.0 + small || scaleFactor < 1.0 - small)
101  {
102  points_ *= scaleFactor;
103  }
104  }
105  else
106  {
107  FatalError
108  << "void starMesh::readPoints() : "
109  << "no points in file "
110  << pointsFileName
111  << abort(FatalError);
112  }
113 }
114 
115 
116 // ************************************************************************* //
scalar y
#define forAll(list, i)
Loop across all elements in list.
Definition: UList.H:434
void setSize(const label)
Reset size of List.
Definition: List.C:281
#define FatalErrorInFunction
Report an error message using Foam::FatalError.
Definition: error.H:334
label nPoints
intWM_LABEL_SIZE_t label
A label is an int32_t or int64_t as specified by the pre-processor macro WM_LABEL_SIZE.
Definition: label.H:59
Ostream & endl(Ostream &os)
Add newline and flush stream.
Definition: Ostream.H:257
errorManip< error > abort(error &err)
Definition: errorManip.H:131
messageStream Info
layerAndWeight max(const layerAndWeight &a, const layerAndWeight &b)
error FatalError
volScalarField & p