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vtkPLOT3DReader.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPLOT3DReader.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkPLOT3DReader.h"
#include "vtkByteSwap.h"
#include "vtkErrorCode.h"
#include "vtkFieldData.h"
#include "vtkFloatArray.h"
#include "vtkIntArray.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkStructuredGrid.h"
#include "vtkUnsignedCharArray.h"
#include "vtkDataArrayCollection.h"
vtkStandardNewMacro(vtkPLOT3DReader);
#define VTK_RHOINF 1.0
#define VTK_CINF 1.0
#define VTK_PINF ((VTK_RHOINF*VTK_CINF) * (VTK_RHOINF*VTK_CINF) / this->Gamma)
#define VTK_CV (this->R / (this->Gamma-1.0))
vtkPLOT3DReader::vtkPLOT3DReader()
{
this->XYZFileName = NULL;
this->QFileName = NULL;
this->FunctionFileName = NULL;
this->BinaryFile = 1;
this->HasByteCount = 0;
this->FileSize = 0;
this->MultiGrid = 0;
this->ForceRead = 0;
this->ByteOrder = FILE_BIG_ENDIAN;
this->IBlanking = 0;
this->TwoDimensionalGeometry = 0;
this->DoNotReduceNumberOfOutputs = 1;
this->R = 1.0;
this->Gamma = 1.4;
this->Uvinf = 0.0;
this->Vvinf = 0.0;
this->Wvinf = 0.0;
this->FunctionList = vtkIntArray::New();
this->ScalarFunctionNumber = -1;
this->SetScalarFunctionNumber(100);
this->VectorFunctionNumber = -1;
this->SetVectorFunctionNumber(202);
this->PointCache = 0;
this->IBlankCache = 0;
}
//----------------------------------------------------------------------------
vtkPLOT3DReader::~vtkPLOT3DReader()
{
delete [] this->XYZFileName;
delete [] this->QFileName;
delete [] this->FunctionFileName;
this->FunctionList->Delete();
this->ClearGeometryCache();
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::ClearGeometryCache()
{
if ( this->PointCache )
{
for ( int g=0; this->PointCache[g]; ++g )
this->PointCache[g]->UnRegister( this );
delete [] this->PointCache;
this->PointCache = 0;
}
if ( this->IBlankCache )
{
for ( int i=0; this->IBlankCache[i]; ++i )
this->IBlankCache[i]->UnRegister( this );
delete [] this->IBlankCache;
this->IBlankCache = 0;
}
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::CheckFile(FILE*& fp, const char* fname)
{
if (this->BinaryFile)
{
fp = fopen(fname, "rb");
}
else
{
fp = fopen(fname, "r");
}
if ( fp == NULL)
{
this->SetErrorCode(vtkErrorCode::FileNotFoundError);
vtkErrorMacro(<< "File: " << fname << " not found.");
return VTK_ERROR;
}
return VTK_OK;
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::CheckGeometryFile(FILE*& xyzFp)
{
if ( this->XYZFileName == NULL || this->XYZFileName[0] == '\0' )
{
this->SetErrorCode(vtkErrorCode::NoFileNameError);
vtkErrorMacro(<< "Must specify geometry file");
return VTK_ERROR;
}
return this->CheckFile(xyzFp, this->XYZFileName);
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::CheckSolutionFile(FILE*& qFp)
{
if ( this->QFileName == NULL || this->QFileName[0] == '\0' )
{
this->SetErrorCode(vtkErrorCode::NoFileNameError);
vtkErrorMacro(<< "Must specify solution (Q) file");
return VTK_ERROR;
}
return this->CheckFile(qFp, this->QFileName);
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::CheckFunctionFile(FILE*& fFp)
{
if ( this->FunctionFileName == NULL || this->FunctionFileName[0] == '\0' )
{
this->SetErrorCode(vtkErrorCode::NoFileNameError);
vtkErrorMacro(<< "Must specify function file");
return VTK_ERROR;
}
return this->CheckFile(fFp, this->FunctionFileName);
}
//----------------------------------------------------------------------------
// Skip Fortran style byte count.
void vtkPLOT3DReader::SkipByteCount(FILE* fp)
{
if (this->BinaryFile && this->HasByteCount)
{
int tmp;
fread(&tmp, sizeof(int), 1, fp);
}
}
//----------------------------------------------------------------------------
// Read a block of ints (ascii or binary) and return number read.
int vtkPLOT3DReader::ReadIntBlock(FILE* fp, int n, int* block)
{
if (this->BinaryFile)
{
int retVal=static_cast<int>(fread(block, sizeof(int), n, fp));
if (this->ByteOrder == FILE_LITTLE_ENDIAN)
{
vtkByteSwap::Swap4LERange(block, n);
}
else
{
vtkByteSwap::Swap4BERange(block, n);
}
return retVal;
}
else
{
int count = 0;
for(int i=0; i<n; i++)
{
int num = fscanf(fp, "%d", &(block[i]));
if ( num > 0 )
{
count++;
}
else
{
return 0;
}
}
return count;
}
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::ReadFloatBlock(FILE* fp, int n, float* block)
{
if (this->BinaryFile)
{
int retVal=static_cast<int>(fread(block, sizeof(float), n, fp));
if (this->ByteOrder == FILE_LITTLE_ENDIAN)
{
vtkByteSwap::Swap4LERange(block, n);
}
else
{
vtkByteSwap::Swap4BERange(block, n);
}
return retVal;
}
else
{
int count = 0;
for(int i=0; i<n; i++)
{
int num = fscanf(fp, "%f", &(block[i]));
if ( num > 0 )
{
count++;
}
else
{
return 0;
}
}
return count;
}
}
//----------------------------------------------------------------------------
// Read a block of floats (ascii or binary) and return number read.
void vtkPLOT3DReader::CalculateFileSize(FILE* fp)
{
long curPos = ftell(fp);
fseek(fp, 0, SEEK_END);
this->FileSize = ftell(fp);
fseek(fp, curPos, SEEK_SET);
}
//----------------------------------------------------------------------------
// Estimate the size of a grid (binary file only)
long vtkPLOT3DReader::EstimateSize(int ni, int nj, int nk)
{
long size; // the header portion, 3 ints
if (!this->TwoDimensionalGeometry)
{
size = 3*4;
size += ni*nj*nk*3*4; // x, y, z
}
else
{
size = 2*4;
size += ni*nj*nk*2*4; // x, y, z
}
if (this->HasByteCount)
{
size += 2*4; // the byte counts
}
if (this->IBlanking)
{
size += ni*nj*nk*4;
}
return size;
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::CanReadBinaryFile(const char* fname)
{
FILE* xyzFp;
if (!fname || fname[0] == '\0')
{
return 0;
}
if ( this->CheckFile(xyzFp, fname) != VTK_OK)
{
return 0;
}
this->CalculateFileSize(xyzFp);
int numOutputs = this->GetNumberOfOutputsInternal(xyzFp, 1);
fclose(xyzFp);
if (numOutputs != 0)
{
return 1;
}
return 0;
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::GetNumberOfOutputs()
{
FILE* xyzFp;
if ( this->CheckGeometryFile(xyzFp) != VTK_OK)
{
return 0;
}
this->CalculateFileSize(xyzFp);
int numOutputs = this->GetNumberOfOutputsInternal(xyzFp, 1);
fclose(xyzFp);
if (numOutputs != 0)
{
return numOutputs;
}
return 1;
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::ReadIntBlockV(char** buf, int n, int* block)
{
memcpy(block, *buf, sizeof(int)*n);
if (this->ByteOrder == FILE_LITTLE_ENDIAN)
{
vtkByteSwap::Swap4LERange(block, n);
}
else
{
vtkByteSwap::Swap4BERange(block, n);
}
*buf += sizeof(int);
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::SkipByteCountV(char** buf)
{
if (this->HasByteCount)
{
*buf += sizeof(int);
}
}
//----------------------------------------------------------------------------
// Read the header and return the number of grids.
int vtkPLOT3DReader::GetNumberOfOutputsInternal(FILE* xyzFp, int verify)
{
int numGrid=0;
int numOutputs;
if ( this->MultiGrid )
{
this->SkipByteCount(xyzFp);
this->ReadIntBlock(xyzFp, 1, &numGrid);
this->SkipByteCount(xyzFp);
}
else
{
numGrid=1;
}
if (!verify)
{
// We were told not the verify the number of grid. Just return it.
numOutputs = numGrid;
}
else
{
// We were told to make sure that the file can really contain
// the number of grid in the header (we can only check this
// if file is binary)
int error=0;
if ( this->BinaryFile )
{
// Store the beginning of first grid.
long pos = ftell(xyzFp);
long fileSize = 0;
// Size of number of grids information.
if ( this->MultiGrid )
{
fileSize += 4; // numGrids
if (this->HasByteCount)
{
fileSize += 4*4; // byte counts for the header
}
}
// Add the size of each grid.
this->SkipByteCount(xyzFp);
for(int i=0; i<numGrid; i++)
{
int ni, nj, nk;
this->ReadIntBlock(xyzFp, 1, &ni);
this->ReadIntBlock(xyzFp, 1, &nj);
if (!this->TwoDimensionalGeometry)
{
this->ReadIntBlock(xyzFp, 1, &nk);
}
else
{
nk = 1;
}
fileSize += this->EstimateSize(ni, nj, nk);
// If this number is larger than the file size, there
// is something wrong.
if ( fileSize > this->FileSize )
{
error = 1;
break;
}
}
this->SkipByteCount(xyzFp);
// If this number is different than the file size, there
// is something wrong.
if ( fileSize != this->FileSize && !this->ForceRead)
{
this->SetErrorCode(vtkErrorCode::FileFormatError);
error = 1;
}
fseek(xyzFp, pos, SEEK_SET);
}
else
{
if (numGrid == 0)
{
this->SetErrorCode(vtkErrorCode::FileFormatError);
}
}
// Now set the number of outputs.
if (!error && numGrid != 0)
{
if ( !this->DoNotReduceNumberOfOutputs ||
numGrid > this->NumberOfOutputs )
{
this->SetNumberOfOutputs(numGrid);
}
for (int i=1; i<numGrid; i++)
{
if (!this->Outputs[i])
{
vtkStructuredGrid* sg = vtkStructuredGrid::New();
this->SetNthOutput(i, sg);
sg->Delete();
}
}
numOutputs = numGrid;
}
else
{
numOutputs = 0;
}
}
return numOutputs;
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::ReadGeometryHeader(FILE* fp)
{
int numGrid = this->GetNumberOfOutputsInternal(fp, 1);
int i;
vtkDebugMacro("Geometry number of grids: " << numGrid);
if ( numGrid == 0 )
{
// Bad file, set all extents to invalid.
for (i=0; i<this->NumberOfOutputs; i++)
{
this->GetOutput(i)->SetWholeExtent(0, -1, 0, -1, 0, -1);
}
return VTK_ERROR;
}
// Read and set extents of all outputs.
this->SkipByteCount(fp);
for(i=0; i<numGrid; i++)
{
int ni, nj, nk=1;
this->ReadIntBlock(fp, 1, &ni);
this->ReadIntBlock(fp, 1, &nj);
if (!this->TwoDimensionalGeometry)
{
this->ReadIntBlock(fp, 1, &nk);
}
vtkDebugMacro("Geometry, block " << i << " dimensions: "
<< ni << " " << nj << " " << nk);
this->GetOutput(i)->SetWholeExtent(0, ni-1, 0, nj-1, 0, nk-1);
}
this->SkipByteCount(fp);
if ( !this->PointCache )
{
this->PointCache = new vtkFloatArray*[ this->NumberOfOutputs + 1 ];
this->IBlankCache = new vtkUnsignedCharArray* [ this->NumberOfOutputs + 1 ];
for ( int g=0; g < this->NumberOfOutputs+1; ++g )
{
this->PointCache[g] = 0;
this->IBlankCache[g] = 0;
}
}
return VTK_OK;
}
int vtkPLOT3DReader::ReadQHeader(FILE* fp)
{
int numGrid = this->GetNumberOfOutputsInternal(fp, 0);
vtkDebugMacro("Q number of grids: " << numGrid);
if ( numGrid == 0 )
{
return VTK_ERROR;
}
this->SkipByteCount(fp);
for(int i=0; i<numGrid; i++)
{
int ni, nj, nk=1;
this->ReadIntBlock(fp, 1, &ni);
this->ReadIntBlock(fp, 1, &nj);
if (!this->TwoDimensionalGeometry)
{
this->ReadIntBlock(fp, 1, &nk);
}
vtkDebugMacro("Q, block " << i << " dimensions: "
<< ni << " " << nj << " " << nk);
int extent[6];
this->GetOutput(i)->GetWholeExtent(extent);
if ( extent[1] != ni-1 || extent[3] != nj-1 || extent[5] != nk-1)
{
this->SetErrorCode(vtkErrorCode::FileFormatError);
vtkErrorMacro("Geometry and data dimensions do not match. "
"Data file may be corrupt.");
return VTK_ERROR;
}
}
this->SkipByteCount(fp);
return VTK_OK;
}
//----------------------------------------------------------------------------
int vtkPLOT3DReader::ReadFunctionHeader(FILE* fp, vtkIdList*& counts)
{
int numGrid = this->GetNumberOfOutputsInternal(fp, 0);
vtkDebugMacro("Function number of grids: " << numGrid);
if ( numGrid == 0 )
{
return VTK_ERROR;
}
this->SkipByteCount(fp);
counts = vtkIdList::New();
for(int i=0; i<numGrid; i++)
{
int ni, nj, nk, ns;
this->ReadIntBlock(fp, 1, &ni);
this->ReadIntBlock(fp, 1, &nj);
this->ReadIntBlock(fp, 1, &nk);
this->ReadIntBlock(fp, 1, &ns);
vtkDebugMacro("Function, block " << i << " dimensions: "
<< ni << " " << nj << " " << nk
<< ", " << ns << "Scalars");
counts->InsertNextId(ns);
int extent[6];
this->GetOutput(i)->GetWholeExtent(extent);
if ( extent[1] != ni-1 || extent[3] != nj-1 || extent[5] != nk-1)
{
this->SetErrorCode(vtkErrorCode::FileFormatError);
vtkErrorMacro("Geometry and data dimensions do not match. "
"Data file may be corrupt.");
return VTK_ERROR;
}
}
this->SkipByteCount(fp);
return VTK_OK;
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::SetXYZFileName( const char* name )
{
if ( this->XYZFileName && ! strcmp( this->XYZFileName, name ) )
{
return;
}
if ( this->XYZFileName )
{
delete [] this->XYZFileName;
}
if ( name )
{
this->XYZFileName = new char [ strlen( name ) + 1 ];
strcpy( this->XYZFileName, name );
}
else
{
this->XYZFileName = 0;
}
this->ClearGeometryCache();
this->Modified();
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::SetScalarFunctionNumber(int num)
{
if ( this->ScalarFunctionNumber == num)
{
return;
}
if (num >= 0)
{
// If this function is not in the list, add it.
int found=0;
for (int i=0; i < this->FunctionList->GetNumberOfTuples(); i++ )
{
if ( this->FunctionList->GetValue(i) == num )
{
found=1;
}
}
if (!found)
{
this->AddFunction(num);
}
}
this->ScalarFunctionNumber = num;
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::SetVectorFunctionNumber(int num)
{
if ( this->VectorFunctionNumber == num)
{
return;
}
if (num >= 0)
{
// If this function is not in the list, add it.
int found=0;
for (int i=0; i < this->FunctionList->GetNumberOfTuples(); i++ )
{
if ( this->FunctionList->GetValue(i) == num )
{
found=1;
}
}
if (!found)
{
this->AddFunction(num);
}
}
this->VectorFunctionNumber = num;
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::RemoveFunction(int fnum)
{
for (int i=0; i < this->FunctionList->GetNumberOfTuples(); i++ )
{
if ( this->FunctionList->GetValue(i) == fnum )
{
this->FunctionList->SetValue(i,-1);
this->Modified();
}
}
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::ExecuteInformation()
{
FILE* xyzFp;
if ( this->CheckGeometryFile(xyzFp) != VTK_OK)
{
return;
}
this->CalculateFileSize(xyzFp);
this->ReadGeometryHeader(xyzFp);
fclose(xyzFp);
}
//----------------------------------------------------------------------------
void vtkPLOT3DReader::Execute()
{
this->SetErrorCode(vtkErrorCode::NoError);
int i;
int ndim, nx, ny, nz;
int numberOfDims;
vtkIdType index;
// Don't read the geometry if we already have it!
if ( (!this->PointCache) || (!this->PointCache[0]) )
{
FILE* xyzFp;
if ( this->CheckGeometryFile(xyzFp) != VTK_OK)
{
return;
}
if ( this->ReadGeometryHeader(xyzFp) != VTK_OK )
{
vtkErrorMacro("Error reading geometry file.");
fclose(xyzFp);
return;
}
if (!this->TwoDimensionalGeometry)
{
numberOfDims = 3;
}
else
{
numberOfDims = 2;
}
for(i=0; i<this->NumberOfOutputs; i++)
{
// Read the geometry of this grid.
this->SkipByteCount(xyzFp);
vtkStructuredGrid* nthOutput = this->GetOutput(i);
int dims[6];
nthOutput->GetWholeExtent(dims);
nthOutput->SetExtent(dims);
nthOutput->GetDimensions(dims);
this->PointCache[i] = vtkFloatArray::New();
this->PointCache[i]->SetNumberOfComponents(3);
this->PointCache[i]->SetNumberOfTuples( dims[0]*dims[1]*dims[2] );
vtkPoints* points = vtkPoints::New();
points->SetData(this->PointCache[i]);
nthOutput->SetPoints(points);
points->Delete();
this->PointCache[i]->Register( this );
this->PointCache[i]->Delete();
float coord;
for(ndim=0; ndim < numberOfDims; ndim++)
{
for(nz=0; nz < dims[2]; nz++)
{
for(ny=0; ny < dims[1]; ny++)
{
for(nx=0; nx < dims[0]; nx++)
{
if ( this->ReadFloatBlock(xyzFp, 1, &coord) == 0 )
{
vtkErrorMacro("Encountered premature end-of-file while reading "
"the geometry file (or the file is corrupt).");
this->SetErrorCode(vtkErrorCode::PrematureEndOfFileError);
// We need to generate output (otherwise, this filter will
// keep executing). So we produce all 0's
double nullpt[3] = {0.0, 0.0, 0.0};
vtkIdType ipts, npts=this->PointCache[i]->GetNumberOfTuples();
for(ipts=0; ipts < npts; ipts++)
{
this->PointCache[i]->SetTuple(ipts, nullpt);
}
fclose(xyzFp);
return;
}
index = nz*dims[0]*dims[1]+ny*dims[0]+nx;
this->PointCache[i]->SetComponent(index, ndim, coord);
}
}
}
}
if (this->TwoDimensionalGeometry)
{
vtkIdType ipts, npts=this->PointCache[i]->GetNumberOfTuples();
for(ipts=0; ipts < npts; ipts++)
{
this->PointCache[i]->SetComponent(ipts, 2, 0);
}
}
if (this->IBlanking)
{
this->IBlankCache[i] = vtkUnsignedCharArray::New();
this->IBlankCache[i]->SetNumberOfComponents(1);
this->IBlankCache[i]->SetNumberOfTuples( dims[0]*dims[1]*dims[2] );
this->IBlankCache[i]->SetName("Visibility");
int* ib = new int[dims[0]*dims[1]*dims[2]];
if ( this->ReadIntBlock(xyzFp, dims[0]*dims[1]*dims[2], ib) == 0)
{
vtkErrorMacro("Encountered premature end-of-file while reading "
"the q file (or the file is corrupt).");
this->SetErrorCode(vtkErrorCode::PrematureEndOfFileError);
fclose(xyzFp);
return;
}
vtkIdType ipts, npts=this->IBlankCache[i]->GetNumberOfTuples();
unsigned char* ib2 = this->IBlankCache[i]->GetPointer(0);
for (ipts=0; ipts<npts; ipts++)
{
ib2[ipts] = ib[ipts];
}
delete[] ib;
nthOutput->SetPointVisibilityArray(this->IBlankCache[i]);
this->IBlankCache[i]->Register( this );
this->IBlankCache[i]->Delete();
}
this->SkipByteCount(xyzFp);
}
fclose(xyzFp);
}
else
{
numberOfDims = this->TwoDimensionalGeometry ? 2 : 3;
for(i=0; i<this->NumberOfOutputs; i++)
{
vtkStructuredGrid* nthOutput = this->GetOutput(i);
int dims[6];
nthOutput->GetWholeExtent(dims);
nthOutput->SetExtent(dims);
vtkPoints* points = vtkPoints::New();
points->SetData(this->PointCache[i]);
nthOutput->SetPoints(points);
points->Delete();
if (this->IBlanking)
{
nthOutput->SetPointVisibilityArray(this->IBlankCache[i]);
}
}
}
// Now read the solution.
if (this->QFileName && this->QFileName[0] != '\0')
{
FILE* qFp;
if ( this->CheckSolutionFile(qFp) != VTK_OK)
{
return;
}
if ( this->ReadQHeader(qFp) != VTK_OK )
{
fclose(qFp);
return;
}
for(i=0; i<this->NumberOfOutputs; i++)
{
vtkStructuredGrid* nthOutput = this->GetOutput(i);
float fsmach, alpha, re, time;
this->SkipByteCount(qFp);
this->ReadFloatBlock(qFp, 1, &fsmach);
this->ReadFloatBlock(qFp, 1, &alpha);
this->ReadFloatBlock(qFp, 1, &re);
this->ReadFloatBlock(qFp, 1, &time);
this->SkipByteCount(qFp);
// Save the properties first
vtkFloatArray* properties = vtkFloatArray::New();
properties->SetName("Properties");
properties->SetNumberOfTuples(4);
properties->SetTuple1(0, fsmach);
properties->SetTuple1(1, alpha);
properties->SetTuple1(2, re);
properties->SetTuple1(3, time);
nthOutput->GetFieldData()->AddArray(properties);
properties->Delete();
int dims[6];
nthOutput->GetWholeExtent(dims);
nthOutput->SetExtent(dims);
nthOutput->GetDimensions(dims);
this->SkipByteCount(qFp);
vtkFloatArray* density = vtkFloatArray::New();
density->SetNumberOfComponents(1);
density->SetNumberOfTuples( dims[0]*dims[1]*dims[2] );
density->SetName("Density");
float* dens = density->GetPointer(0);
if ( this->ReadFloatBlock(qFp, dims[0]*dims[1]*dims[2], dens) == 0)
{
vtkErrorMacro("Encountered premature end-of-file while reading "
"the q file (or the file is corrupt).");
this->SetErrorCode(vtkErrorCode::PrematureEndOfFileError);
fclose(qFp);
return;
}
nthOutput->GetPointData()->AddArray(density);
density->Delete();
vtkFloatArray* momentum = vtkFloatArray::New();
momentum->SetNumberOfComponents(3);
momentum->SetNumberOfTuples( dims[0]*dims[1]*dims[2] );
momentum->SetName("Momentum");
float comp;
for(ndim=0; ndim < numberOfDims; ndim++)
{
for(nz=0; nz < dims[2]; nz++)
{
for(ny=0; ny < dims[1]; ny++)
{
for(nx=0; nx < dims[0]; nx++)
{
if ( this->ReadFloatBlock(qFp, 1, &comp) == 0 )
{
vtkErrorMacro("Encountered premature end-of-file while "
"reading the q file (or the file is corrupt).");
fclose(qFp);
return;
}
index = nz*dims[0]*dims[1]+ny*dims[0]+nx;
momentum->SetComponent(index, ndim, comp);
}
}
}
}
if (this->TwoDimensionalGeometry)
{
vtkIdType ipts, npts=momentum->GetNumberOfTuples();
for(ipts=0; ipts < npts; ipts++)
{
momentum->SetComponent(ipts, 2, 0);
}
}
nthOutput->GetPointData()->AddArray(momentum);
momentum->Delete();
vtkFloatArray* se = vtkFloatArray::New();
se->SetNumberOfComponents(1);
se->SetNumberOfTuples( dims[0]*dims[1]*dims[2] );
se->SetName("StagnationEnergy");
float* sen = se->GetPointer(0);
if (this->ReadFloatBlock(qFp, dims[0]*dims[1]*dims[2], sen) == 0)
{
vtkErrorMacro("Encountered premature end-of-file while reading "
"the q file (or the file is corrupt).");
fclose(qFp);
return;
}
nthOutput->GetPointData()->AddArray(se);
se->Delete();
this->SkipByteCount(qFp);
if ( this->FunctionList->GetNumberOfTuples() > 0 )
{
int fnum;
for (int tup=0; tup < this->FunctionList->GetNumberOfTuples(); tup++)
{
if ( (fnum=this->FunctionList->GetValue(tup)) >= 0 )
{
this->MapFunction(fnum, nthOutput);
}
}
}
this->AssignAttribute(this->ScalarFunctionNumber, nthOutput,
vtkDataSetAttributes::SCALARS);
this->AssignAttribute(this->VectorFunctionNumber, nthOutput,
vtkDataSetAttributes::VECTORS);
this->SkipByteCount(qFp);
}
fclose(qFp);
}
if (this->FunctionFileName && this->FunctionFileName[0] != '\0')
{
FILE* fFp;
vtkIdList *arrayCounts;
if ( this->CheckFunctionFile(fFp) != VTK_OK)
{
return;
}
if ( this->ReadFunctionHeader(fFp, arrayCounts) != VTK_OK )
{
fclose(fFp);
return;
}
for(i=0; i<this->NumberOfOutputs; i++)
{
vtkStructuredGrid* nthOutput = this->GetOutput(i);
int dims[6];
int scalarId;
nthOutput->GetWholeExtent(dims);
nthOutput->SetExtent(dims);
nthOutput->GetDimensions(dims);