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visit_writer.c
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/*****************************************************************************
*
* Copyright (c) 2000 - 2008, Lawrence Livermore National Security, LLC
* Produced at the Lawrence Livermore National Laboratory
* LLNL-CODE-400142
* All rights reserved.
*
* This file is part of VisIt. For details, see https://visit.llnl.gov/. The
* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the disclaimer (as noted below) in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of the LLNS/LLNL nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL LAWRENCE LIVERMORE NATIONAL SECURITY,
* LLC, THE U.S. DEPARTMENT OF ENERGY OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*****************************************************************************/
/*****************************************************************************
*
* Copyright (c) 2000 - 2008, Lawrence Livermore National Security, LLC
* Produced at the Lawrence Livermore National Laboratory
* LLNL-CODE-400142
* All rights reserved.
*
* This file is part of VisIt. For details, see https://visit.llnl.gov/. The
* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the disclaimer (as noted below) in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of the LLNS/LLNL nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL LAWRENCE LIVERMORE NATIONAL SECURITY,
* LLC, THE U.S. DEPARTMENT OF ENERGY OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*****************************************************************************/
/* ************************************************************************* //
// visit_writer.c //
// ************************************************************************* */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "visit_writer.h"
/*
* Globals.
*/
//static FILE *fp = NULL;
//static int useBinary = 0;
//static int numInColumn = 0;
/* ****************************************************************************
* Function: end_line
*
* Purpose:
* If doubles or ints have been written using the write_double / write_int
* functions, this will issue a newline (if necessary) so that a new
* heading can be placed.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void end_line(FILE* fp, int useBinary, int numInColumn)
{
if (!useBinary)
{
char str2[8] = "\n";
fprintf(fp, str2);
numInColumn = 0;
}
}
/* ****************************************************************************
* Function: open_file
*
* Purpose:
* Opens a file for writing and assigns the handle to the global variable
* "fp".
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void open_file(const char *filename, FILE **fp)
{
char full_filename[1024];
if (strstr(filename, ".vtk") != NULL)
{
strcpy(full_filename, filename);
}
else
{
sprintf(full_filename, "%s.vtk", filename);
}
*fp = fopen(full_filename, "w+");
}
/* ****************************************************************************
* Function: close_file
*
* Purpose:
* Closes the file with handle "fp" (a global variable).
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void close_file(FILE *fp, int ub, int nIC)
{
end_line(fp, ub, nIC);
fclose(fp);
fp = NULL;
}
/* ****************************************************************************
* Function: force_big_endian
*
* Purpose:
* Determines if the machine is little-endian. If so, then, for binary
* data, it will force the data to be big-endian.
*
* Note: This assumes that all inputs are 4 bytes long.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void force_big_endian(unsigned char *bytes, int useBinary)
{
static int doneTest = 0;
static int shouldSwap = 0;
if (!doneTest)
{
int tmp1 = 1;
unsigned char *tmp2 = (unsigned char *) &tmp1;
if (*tmp2 != 0)
shouldSwap = 1;
doneTest = 1;
}
if (shouldSwap & useBinary)
{
unsigned char tmp = bytes[0];
bytes[0] = bytes[3];
bytes[3] = tmp;
tmp = bytes[1];
bytes[1] = bytes[2];
bytes[2] = tmp;
}
}
/* ****************************************************************************
* Function: write_string
*
* Purpose:
* Writes a character to the open file.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void write_string(const char *str, FILE *fp)
{
fprintf(fp, str);
}
/* ****************************************************************************
* Function: new_section
*
* Purpose:
* Adds a new line, provided we didn't already just do so and we are
* writing an ASCII file.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void new_section(FILE * fp, int ub, int numInColumn)
{
if (numInColumn != 0)
end_line(fp, ub, numInColumn);
numInColumn = 0;
}
/* ****************************************************************************
* Function: write_int
*
* Purpose:
* Writes an integer to the currently open file. This routine takes
* care of ASCII vs binary issues.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void write_int(int val, FILE * fp, int useBinary, int numInColumn)
{
if (useBinary)
{
force_big_endian((unsigned char *) &val, useBinary);
fwrite(&val, sizeof(int), 1, fp);
}
else
{
char str[128];
sprintf(str, "%d ", val);
fprintf(fp, str);
if (((numInColumn++) % 9) == 8)
{
char str2[8] = "\n";
fprintf(fp, str2);
numInColumn = 0;
}
}
}
/* ****************************************************************************
* Function: write_double
*
* Purpose:
* Writes an double to the currently open file. This routine takes
* care of ASCII vs binary issues.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* Modifications:
*
* Hank Childs, Fri Apr 22 09:14:44 PDT 2005
* Make precision changes suggested by Jeff McAninch
*
* ************************************************************************* */
static void write_double(double val, FILE * fp, int useBinary, int numInColumn)
{
if (useBinary)
{
force_big_endian((unsigned char *) &val, useBinary);
fwrite(&val, sizeof(double), 1, fp);
}
else
{
char str[128];
sprintf(str, "%20.12e ", val);
fprintf(fp, str);
if (((numInColumn++) % 9) == 8)
{
end_line(fp, useBinary, numInColumn);
}
}
}
/* ****************************************************************************
* Function: write_header
*
* Purpose:
* Writes the standard VTK header to the file. This should be the first
* thing written to the file.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static void write_header(FILE * fp, int useBinary)
{
fprintf(fp, "# vtk DataFile Version 2.0\n");
fprintf(fp, "Written using VisIt writer\n");
if (useBinary)
fprintf(fp, "BINARY\n");
else
fprintf(fp, "ASCII\n");
}
/* ****************************************************************************
* Function: write_variables
*
* Purpose:
* Writes the variables to the file. This can be a bit tricky. The
* cell data must be written first, followed by the point data. When
* writing the [point|cell] data, one variable must be declared the
* primary scalar and another the primary vector (provided scalars
* or vectors exist). The rest of the arrays are added through the
* "field data" mechanism. Field data should support groups of arrays
* with different numbers of components (ie a scalar and a vector), but
* there is a failure with the VTK reader. So the scalars are all written
* one group of field data and then the vectors as another. If you don't
* write it this way, the vectors do not show up.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
void write_variables(int nvars, int *vardim, int *centering,
const char * const * varname, double **vars,
int npts, int ncells, FILE *fpp, int useBinary,
int nIC)
{
char str[1024];
int i, j, first_scalar, first_vector;
int num_scalars, num_vectors;
int num_field = 0;
new_section(fpp, useBinary, nIC);
sprintf(str, "CELL_DATA %d\n", ncells);
write_string(str, fpp);
first_scalar = 0;
first_vector = 0;
num_scalars = 0;
num_vectors = 0;
/* The field data is where the non-primary scalars and vectors are
* stored. They must all be grouped together at the end of the point
* data. So write out the primary scalars and vectors first.
*/
for (i = 0 ; i < nvars ; i++)
{
if (centering[i] == 0)
{
int num_to_write = 0;
int should_write = 0;
if (vardim[i] == 1)
{
if (first_scalar == 0)
{
should_write = 1;
sprintf(str, "SCALARS %s double\n", varname[i]);
write_string(str, fpp);
write_string("LOOKUP_TABLE default\n", fpp);
first_scalar = 1;
}
else
num_scalars++;
}
else if (vardim[i] == 3)
{
if (first_vector == 0)
{
should_write = 1;
sprintf(str, "VECTORS %s double\n", varname[i]);
write_string(str, fpp);
first_vector = 1;
}
else
num_vectors++;
}
else
{
printf("Only supported variable dimensions are 1 and 3.\n");
printf("Ignoring variable %s.\n", varname[i]);
continue;
}
if (should_write)
{
num_to_write = ncells*vardim[i];
for (j = 0 ; j < num_to_write ; j++)
{
write_double(vars[i][j], fpp, useBinary, nIC);
}
end_line(fpp, useBinary, nIC);
}
}
}
first_scalar = 0;
if (num_scalars > 0)
{
sprintf(str, "FIELD FieldData %d\n", num_scalars);
write_string(str, fpp);
for (i = 0 ; i < nvars ; i++)
{
int should_write = 0;
if (centering[i] == 0)
{
if (vardim[i] == 1)
{
if (first_scalar == 0)
{
first_scalar = 1;
}
else
{
should_write = 1;
sprintf(str, "%s 1 %d double\n", varname[i], ncells);
write_string(str, fpp);
}
}
}
if (should_write)
{
int num_to_write = ncells*vardim[i];
for (j = 0 ; j < num_to_write ; j++)
{
write_double(vars[i][j], fpp, useBinary, nIC);
}
end_line(fpp, useBinary, nIC);
}
}
}
first_vector = 0;
if (num_vectors > 0)
{
sprintf(str, "FIELD FieldData %d\n", num_vectors);
write_string(str, fpp);
for (i = 0 ; i < nvars ; i++)
{
int should_write = 0;
if (centering[i] == 0)
{
int num_to_write = 0;
if (vardim[i] == 3)
{
if (first_vector == 0)
{
first_vector = 1;
}
else
{
should_write = 1;
sprintf(str, "%s 3 %d double\n", varname[i], ncells);
write_string(str, fpp);
}
}
}
if (should_write)
{
int num_to_write = ncells*vardim[i];
for (j = 0 ; j < num_to_write ; j++)
{
write_double(vars[i][j], fpp, useBinary, nIC);
}
end_line(fpp, useBinary, nIC);
}
}
}
new_section(fpp, useBinary, nIC);
sprintf(str, "POINT_DATA %d\n", npts);
write_string(str, fpp);
first_scalar = 0;
first_vector = 0;
num_scalars = 0;
num_vectors = 0;
/* The field data is where the non-primary scalars and vectors are
* stored. They must all be grouped together at the end of the point
* data. So write out the primary scalars and vectors first.
*/
for (i = 0 ; i < nvars ; i++)
{
if (centering[i] != 0)
{
int num_to_write = 0;
int should_write = 0;
if (vardim[i] == 1)
{
if (first_scalar == 0)
{
should_write = 1;
sprintf(str, "SCALARS %s double\n", varname[i]);
write_string(str, fpp);
write_string("LOOKUP_TABLE default\n", fpp);
first_scalar = 1;
}
else
num_scalars++;
}
else if (vardim[i] == 3)
{
if (first_vector == 0)
{
should_write = 1;
sprintf(str, "VECTORS %s double\n", varname[i]);
write_string(str, fpp);
first_vector = 1;
}
else
num_vectors++;
}
else
{
printf("Only supported variable dimensions are 1 and 3.\n");
printf("Ignoring variable %s.\n", varname[i]);
continue;
}
if (should_write)
{
num_to_write = npts*vardim[i];
for (j = 0 ; j < num_to_write ; j++)
{
write_double(vars[i][j], fpp, useBinary, nIC);
}
end_line(fpp, useBinary, nIC);
}
}
}
first_scalar = 0;
if (num_scalars > 0)
{
sprintf(str, "FIELD FieldData %d\n", num_scalars);
write_string(str, fpp);
for (i = 0 ; i < nvars ; i++)
{
int should_write = 0;
if (centering[i] != 0)
{
if (vardim[i] == 1)
{
if (first_scalar == 0)
{
first_scalar = 1;
}
else
{
should_write = 1;
sprintf(str, "%s 1 %d double\n", varname[i], npts);
write_string(str, fpp);
}
}
}
if (should_write)
{
int num_to_write = npts*vardim[i];
for (j = 0 ; j < num_to_write ; j++)
{
write_double(vars[i][j], fpp, useBinary, nIC);
}
end_line(fpp, useBinary, nIC);
}
}
}
first_vector = 0;
if (num_vectors > 0)
{
sprintf(str, "FIELD FieldData %d\n", num_vectors);
write_string(str, fpp);
for (i = 0 ; i < nvars ; i++)
{
int should_write = 0;
if (centering[i] != 0)
{
int num_to_write = 0;
if (vardim[i] == 3)
{
if (first_vector == 0)
{
first_vector = 1;
}
else
{
should_write = 1;
sprintf(str, "%s 3 %d double\n", varname[i], npts);
write_string(str, fpp);
}
}
}
if (should_write)
{
int num_to_write = npts*vardim[i];
for (j = 0 ; j < num_to_write ; j++)
{
write_double(vars[i][j], fpp, useBinary, nIC);
}
end_line(fpp, useBinary, nIC);
}
}
}
}
/* ****************************************************************************
// Function: write_point_mesh
//
// Purpose:
// Writes out a point mesh.
//
// Arguments:
// filename The name of the file to write. If the extension ".vtk" is
// not present, it will be added.
// useBinary '0' to write ASCII, !0 to write binary
// npts The number of points in the mesh.
// pts The spatial locations of the points. This array should
// be size 3*npts. The points should be encoded as:
// <x1, y1, z1, x2, y2, z2, ..., xn, yn, zn>
// nvars The number of variables.
// vardim The dimension of each variable. The size of vardim should
// be nvars. If var i is a scalar, then vardim[i] = 1.
// If var i is a vector, then vardim[i] = 3.
// vars An array of variables. The size of vars should be nvars.
// The size of vars[i] should be npts*vardim[i].
//
// Programmer: Hank Childs
// Creation: September 2, 2004
//
// ***************************************************************************/
void write_point_mesh(const char *filename, int ub, int npts, double *pts,
int nvars, int *vardim, const char * const *varnames,
double **vars)
{
int i;
char str[128];
int *centering = NULL;
FILE *fpp = NULL;
int useBinary = 0;
int numInColumn = 0;
useBinary = ub;
open_file(filename, &fpp);
write_header(fpp, useBinary);
write_string("DATASET UNSTRUCTURED_GRID\n", fpp);
sprintf(str, "POINTS %d double\n", npts);
write_string(str, fpp);
for (i = 0 ; i < 3*npts ; i++)
{
write_double(pts[i], fpp, useBinary, numInColumn);
}
new_section(fpp, useBinary, numInColumn);
sprintf(str, "CELLS %d %d\n", npts, 2*npts);
write_string(str, fpp);
for (i = 0 ; i < npts ; i++)
{
write_int(1, fpp, useBinary, numInColumn);
write_int(i, fpp, useBinary, numInColumn);
end_line(fpp, useBinary, numInColumn);
}
new_section(fpp, useBinary, numInColumn);
sprintf(str, "CELL_TYPES %d\n", npts);
write_string(str, fpp);
for (i = 0 ; i < npts ; i++)
{
write_int(VISIT_VERTEX, fpp, useBinary, numInColumn);
end_line(fpp, useBinary, numInColumn);
}
centering = (int *) malloc(nvars*sizeof(int));
for (i = 0 ; i < nvars ; i++)
centering[i] = 1;
write_variables(nvars, vardim, centering, varnames, vars, npts, npts, fpp, useBinary, numInColumn);
free(centering);
close_file(fpp, useBinary, numInColumn);
}
/* ****************************************************************************
* Function: num_points_for_cell
*
* Purpose:
* Determines the number of points for the type of cell.
*
* Programmer: Hank Childs
* Creation: September 3, 2004
*
* ************************************************************************* */
static int num_points_for_cell(int celltype)
{
int npts = 0;
switch (celltype)
{
case VISIT_VERTEX:
npts = 1;
break;
case VISIT_LINE:
npts = 2;
break;
case VISIT_TRIANGLE:
npts = 3;
break;
case VISIT_QUAD:
npts = 4;
break;
case VISIT_TETRA:
npts = 4;
break;
case VISIT_HEXAHEDRON:
npts = 8;
break;
case VISIT_WEDGE:
npts = 6;
break;
case VISIT_PYRAMID:
npts = 5;
break;
}
return npts;
}
/* ****************************************************************************
// Function: write_unstructured_mesh
//
// Purpose:
// Writes out a unstructured mesh.
//
//
// Arguments:
// filename The name of the file to write. If the extension ".vtk" is
// not present, it will be added.
// useBinary '0' to write ASCII, !0 to write binary
// npts The number of points in the mesh.
// pts The spatial locations of the points. This array should
// be size 3*npts. The points should be encoded as:
// <x1, y1, z1, x2, y2, z2, ..., xn, yn, zn>
// ncells The number of cells.
// celltypes The type of each cell.
// conn The connectivity array.
// nvars The number of variables.
// vardim The dimension of each variable. The size of vardim should
// be nvars. If var i is a scalar, then vardim[i] = 1.
// If var i is a vector, then vardim[i] = 3.
// centering The centering of each variable. The size of centering
// should be nvars. If centering[i] == 0, then the variable
// is cell-based. If centering[i] != 0, then the variable
// is point-based.
// vars An array of variables. The size of vars should be nvars.
// The size of vars[i] should be npts*vardim[i].
//
// Programmer: Hank Childs
// Creation: September 2, 2004
//
// ***************************************************************************/
void write_unstructured_mesh(const char *filename, int ub, int npts,
double *pts, int ncells, int *celltypes, int *conn,
int nvars, int *vardim, int *centering,
const char * const *varnames, double **vars)
{
int i, j;
char str[128];
int conn_size = 0;
int *curr_conn = conn;
FILE *fpp = NULL;
int useBinary = 0;
int numInColumn = 0;
useBinary = ub;
open_file(filename, &fpp);
write_header(fpp, useBinary);
write_string("DATASET UNSTRUCTURED_GRID\n", fpp);
sprintf(str, "POINTS %d double\n", npts);
write_string(str, fpp);
for (i = 0 ; i < 3*npts ; i++)
{
write_double(pts[i], fpp, useBinary, numInColumn);
}
new_section(fpp, useBinary, numInColumn);
for (i = 0 ; i < ncells ; i++)
{
int npts = num_points_for_cell(celltypes[i]);
conn_size += npts+1;
}
sprintf(str, "CELLS %d %d\n", ncells, conn_size);
write_string(str, fpp);
for (i = 0 ; i < ncells ; i++)
{
int npts = num_points_for_cell(celltypes[i]);
write_int(npts, fpp, useBinary, numInColumn);
for (j = 0 ; j < npts ; j++)
write_int(*curr_conn++, fpp, useBinary, numInColumn);
end_line(fpp, useBinary, numInColumn);
}
new_section(fpp, useBinary, numInColumn);
sprintf(str, "CELL_TYPES %d\n", ncells);
write_string(str, fpp);
for (i = 0 ; i < ncells ; i++)
{
write_int(celltypes[i], fpp, useBinary, numInColumn);
end_line(fpp, useBinary, numInColumn);
}
write_variables(nvars, vardim, centering, varnames, vars, npts, ncells, fpp, useBinary, numInColumn);
close_file(fpp, useBinary, numInColumn);
}
/* ****************************************************************************
// Function: write_rectilinear_mesh
//
// Purpose:
// Writes out a rectilinear mesh.
//
//
// Arguments:
// filename The name of the file to write. If the extension ".vtk" is
// not present, it will be added.
// useBinary '0' to write ASCII, !0 to write binary
// dims An array of size 3 = { nX, nY, nZ }, where nX is the
// number of points in the X-dimension, etc.
// x An array of size dims[0] that contains the x-coordinates.
// y An array of size dims[1] that contains the x-coordinates.
// z An array of size dims[2] that contains the x-coordinates.
// nvars The number of variables.
// vardim The dimension of each variable. The size of vardim should
// be nvars. If var i is a scalar, then vardim[i] = 1.
// If var i is a vector, then vardim[i] = 3.
// centering The centering of each variable. The size of centering
// should be nvars. If centering[i] == 0, then the variable
// is cell-based. If centering[i] != 0, then the variable
// is point-based.
// vars An array of variables. The size of vars should be nvars.
// The size of vars[i] should be npts*vardim[i].
//
//
// Programmer: Hank Childs
// Creation: September 2, 2004
//
// Modifications:
//
// Hank Childs, Wed Apr 6 16:22:57 PDT 2005
// Fix problem with 2D structured meshes and assessing cell count.
//
// ***************************************************************************/
void write_rectilinear_mesh(const char *filename, int ub, int *dims,
double *x, double *y, double *z,
int nvars, int *vardim, int *centering,
const char * const *varnames, double **vars)
{
int i, j;
char str[128];
int npts = dims[0]*dims[1]*dims[2];
int ncX = (dims[0] - 1 < 1 ? 1 : dims[0] - 1);
int ncY = (dims[1] - 1 < 1 ? 1 : dims[1] - 1);
int ncZ = (dims[2] - 1 < 1 ? 1 : dims[2] - 1);
int ncells = ncX*ncY*ncZ;
FILE *fpp = NULL;
int useBinary = 0;
int numInColumn = 0;
useBinary = ub;
open_file(filename, &fpp);
write_header(fpp, useBinary);
write_string("DATASET RECTILINEAR_GRID\n", fpp);
sprintf(str, "DIMENSIONS %d %d %d\n", dims[0], dims[1], dims[2]);
write_string(str, fpp);
sprintf(str, "X_COORDINATES %d double\n", dims[0]);
write_string(str, fpp);
for (i = 0 ; i < dims[0] ; i++)
write_double(x[i], fpp, useBinary, numInColumn);
new_section(fpp, useBinary, numInColumn);
sprintf(str, "Y_COORDINATES %d double\n", dims[1]);
write_string(str, fpp);
for (i = 0 ; i < dims[1] ; i++)
write_double(y[i], fpp, useBinary, numInColumn);
new_section(fpp, useBinary, numInColumn);
sprintf(str, "Z_COORDINATES %d double\n", dims[2]);
write_string(str, fpp);
for (i = 0 ; i < dims[2] ; i++)
write_double(z[i], fpp, useBinary, numInColumn);
write_variables(nvars, vardim, centering, varnames, vars, npts,
ncells, fpp, useBinary, numInColumn);
close_file(fpp, useBinary, numInColumn);
}
/* ****************************************************************************
// Function: write_regular_mesh
//
// Purpose:
// Writes out a regular mesh. A regular mesh is one where the data lies
// along regular intervals. "Brick of bytes/doubles",
// "Block of bytes/doubles", and MRI data all are examples of data that
// lie on regular meshes.
//
//
// Arguments:
// filename The name of the file to write. If the extension ".vtk" is
// not present, it will be added.
// useBinary '0' to write ASCII, !0 to write binary
// dims An array of size 3 = { nX, nY, nZ }, where nX is the
// number of points in the X-dimension, etc.
// nvars The number of variables.
// vardim The dimension of each variable. The size of vardim should
// be nvars. If var i is a scalar, then vardim[i] = 1.
// If var i is a vector, then vardim[i] = 3.
// centering The centering of each variable. The size of centering
// should be nvars. If centering[i] == 0, then the variable
// is cell-based. If centering[i] != 0, then the variable
// is point-based.
// vars An array of variables. The size of vars should be nvars.
// The size of vars[i] should be npts*vardim[i].
//
//
// Programmer: Hank Childs
// Creation: September 2, 2004
//
// ***************************************************************************/
void write_regular_mesh(const char *filename, int ub, int *dims, int* procGridLow,
int nvars, int *vardim, int *centering,
const char * const *varnames, double **vars)
{
int i;
double *x = (double *) malloc(sizeof(double)*dims[0]);
double *y = (double *) malloc(sizeof(double)*dims[1]);
double *z = (double *) malloc(sizeof(double)*dims[2]);
//PRAO: changed the range of i from 0 to dim[0]
for (i = 0 ; i < dims[0] ; i++) {
int j = procGridLow[0] + i;
x[i] = (double) j;
}
for (i = 0 ; i < dims[1] ; i++) {
int j = procGridLow[1] + i;
y[i] = (double) j;
}
for (i = 0 ; i < dims[2] ; i++) {
int j = procGridLow[2] + i;
z[i] = (double) j;