INTecplotLib/intecplot.cpp at master · nompelis/INTecplotLib · GitHub

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/******************************************************************************

Redistribution and use in source and binary forms, with or without any

modification, are permitted provided that the following conditions are met:

1. Redistribution of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

2. Redistribution in binary form must reproduce the above copyright

notice, this list of conditions and the following disclaimer in the

documentation and/or other materials provided with the distribution.

3. All advertising materials mentioning features or use of this software

must display the following acknowledgement:

"This product includes software developed by Ioannis Nompelis."

4. Neither the name of Ioannis Nompelis and his partners/affiliates nor the

names of other contributors may be used to endorse or promote products

derived from this software without specific prior written permission.

5. Redistribution or use of source code and binary forms for profit must

have written permission of the copyright holder.

THIS SOFTWARE IS PROVIDED BY IOANNIS NOMPELIS ''AS IS'' AND ANY

EXPRESSED 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 IOANNIS NOMPELIS 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.

******************************************************************************/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <math.h>

#include <utils.h>

#include "intecplot.h"

#ifdef __cplusplus

extern "C" {

#endif

enum inTecFile_Component {

Unknown = -1,

Title = 11,

Filetype = 12,

FiletypeFull = 12001,

FiletypeGrid = 12002,

FiletypeSolution = 12003,

Variables = 13,

Zone = 21,

Text = 31,

Geometry = 41,

Custom_Label = 51,

Dataset_Auxilary = 61,

Variable_Auxilary = 71,

Comment = 100

};

enum inTecZone_FEtype {

ORDERED = 0,

FELINESEG = 1,

FETRIANGLE = 2,

FEQUADRILATERAL = 3,

FEPOLYGON = 4,

FETETRAHEDRON = 5,

FEBRICK = 6,

FEPOLYHEDRAL = 7

};

// the zone object methods

inTec_Zone::inTec_Zone( inTec_File* file_ )

{

#ifdef _DEBUG_

printf(" i Zone object instantiated\n");

#endif

istate = 0;

ipos = 0;

ipos_data = 0;

ipos_conn = 0;

// keyword-based variables

tkey = NULL;

ietype = -1;

idatapack = -1;

im = 0;

jm = 0;

km = 0;

nodes = 0;

elems = 0;

nv = 0;

parent_zone = -1;

// old-style variables

iold_n = 0;

iold_e = 0;

iold_et = -1;

iold_f = -1;

// utility variables

iparse_num = 0;

node_cnt = 0;

elem_cnt = 0;

var_cnt = 0;

icon_cnt = 0;

InitKeywords();

file = file_;

num_var = 0;

icon = NULL;

ncon = 0;

// if the zone has a parent file, get the number of variables, etc

if( file != NULL ) {

num_var = file->GetNumVariables();

// default all variables to nodal

for(int n=1;n<=num_var;++n) ivar_loc[n] = 1;

}

inTec_Zone::~inTec_Zone()

{

#ifdef _DEBUG_

printf(" i Zone object deconstructed\n");

#endif

clear();

}

int inTec_Zone::GetState() const

{

return( istate );

}

int inTec_Zone::GetType() const

{

return( (int) ietype );

}

void inTec_Zone::clear()

{

#ifdef _DEBUG_

printf(" i Zone object clearing\n");

#endif

// deallocate data arrays

std::vector< double * > :: iterator dpi;

for( dpi = var_vec.begin() ; dpi != var_vec.end() ; ++dpi ) {

if( (*dpi) != NULL ) {

double *tp = (*dpi);

//HACK free( tp );

#warning "CLEAN THIS IF ERROR"

free( tp );

(*dpi) = NULL;

}

var_vec.clear();

// deallocate connectivity array

if( icon != NULL ) free( icon );

icon = NULL;

#ifdef _DEBUG_

printf(" i Keywords in zone (%ld) \n", keywords.size());

printf(" Index Keyword=String \n");

std::map< std::string, std::string > :: iterator imap;

int i=0;

for( imap = keywords.begin(); imap != keywords.end(); ++imap ) {

printf(" %d ", i++ );

printf(" [%s] = %s\n", (*imap).first.c_str(), (*imap).second.c_str() );

}

#endif

keywords.clear();

#ifdef _DEBUG_

printf(" Other data in zone \n");

printf(" - T: %s \n", tkey);

printf(" - Nodes: %ld \n", nodes);

printf(" - Elements: %ld \n", elems);

printf(" - im,jm,kn: %ld, %ld, %ld \n", im,jm,km);

printf(" - Number of variables: %d \n", num_var);

std::map< int, int > :: iterator it;

for( it= ivar_loc.begin(); it != ivar_loc.end(); ++it ) {

printf(" ==> %d location %d \n", (*it).first, (*it).second );

}

#endif

ivar_loc.clear();

// drop T-keyword string

if( tkey != NULL ) free( tkey );

// initialize variables as if it were a fresh object

istate = 0;

ipos = 0;

ipos_data = 0;

ipos_conn = 0;

// keyword-based variables

tkey = NULL;

ietype = -1;

idatapack = -1;

im = 0;

jm = 0;

km = 0;

nodes = 0;

elems = 0;

nv = 0;

parent_zone = -1;

// old-style variables

iold_n = 0;

iold_e = 0;

iold_et = -1;

iold_f = -1;

// utility variables

iparse_num = 0;

node_cnt = 0;

elem_cnt = 0;

var_cnt = 0;

icon_cnt = 0;

InitKeywords();

file = NULL;

num_var = 0;

icon = NULL;

ncon = 0;

num_var = 0;

}

void inTec_Zone::InitKeywords()

{

// add TecPlot keywords with default values

// keywords["T"] = "";

keywords["ZONETYPE"] = "ORDERED";

// keywords["I"] = "";

// keywords["J"] = "";

// keywords["K"] = "";

// keywords["NODES"] = "";

// keywords["ELEMENTS"] = "";

// keywords["FACES"] = "";

// keywords["TOTALNUMFACENODES"] = "";

// keywords["NUMCONNECTEDBOUNDARYFACES"] = "";

// keywords["TOTALNUMBOUNDARYCONNECTIONS"] = "";

// keywords["FACENEIGBORMODE"] = "LOCALONETOONE";

// keywords["FACENEIGHBORCONNECTIONS"] = "";

keywords["DT"] = "SINGLE";

keywords["DATAPACKING"] = "BLOCK";

keywords["VARLOCATION"] = "(NODAL)";

// keywords["VARSHARELIST"] = "";

// keywords["NV"] = "";

// keywords["CONNECTIVITYSHAREZONE"] = "";

// keywords["STRANDID"] = "";

// keywords["SOLUTIONTIME"] = "";

// keywords["PARENTZONE"] = "";

// keywords["PASSIVEVARLIST"] = "";

// keywords["AUXDATA"] = "";

// keywords[""] = "";

// keywords from the old format

// keywords["E"] = "";

// keywords["N"] = "";

// keywords["ET"] = "";

}

long inTec_Zone::GetPositionInFile( void ) const

{

return( ipos );

}

int inTec_Zone::NotifyPositionInFile( long ipos_ )

{

// reject reseting of position if it is already set

if( ipos != 0 ) {

return(1);

} else { // this is for when a zone is created but not read from a file

ipos = ipos_;

return(0);

}

long inTec_Zone::GetDataPositionInFile( void ) const

{

return( ipos_data );

}

int inTec_Zone::NotifyDataPositionInFile( long ipos_data_ )

{

// reject reseting of position if it is already set

if( ipos_data != 0 ) {

return(1);

} else { // this is for when a zone is created but not read from a file

ipos_data = ipos_data_;

#ifdef _DEBUG_

printf(" --- Zone's data position at: %ld \n", ipos_data );

#endif

return(0);

}

int inTec_Zone::SetState_Reading( void )

{

if( istate != 0 ) {

// this is an error code that implies prior setting of the state

return(1);

}

// use whatever keywords hava been collected to manage the internal state

int iret = ManageInternals();

if( iret == 0 ) {

istate = 1;

return(0);

} else {

// this is an error code that should imply an inconsistency

return(2);

}

int inTec_Zone::ParseKeywords( char *buf )

{

#ifdef _DEBUG_

printf(" i Parsing zone keywords \n");

#endif

size_t isize=0;

while( buf[isize] != '\0' && buf[isize] != '\n' ) ++isize;

char *data;

// create a duplicate buffer

data = (char *) malloc(((size_t) (isize+1))*sizeof(char));

if( data == NULL ) return(-1);

// copy line to buffer and add termination character

memcpy( data, buf, isize );

data[isize] = '\0';

#ifdef _DEBUG3_

printf("DATA: %s\n",data);

#endif

// keep parsing for keywords and values

int np=0;

int ipar=0, ibra=0, iquote=0, ikey=0, ierror=0, iparse=0;

char *s=data, *es=NULL;

size_t n=0;

while( n <= isize ) {

#ifdef _DEBUG2_

printf(" (key: %d, quote: %d) ", ikey,iquote);

printf(" %c s: %c ", data[n],s[0]);

// printf(" %c s: %c (key: %d, quote: %d) ", data[n],s[0],ikey,iquote);

#endif

// space or comma as keyword delimeter

if( data[n] == ' ' || data[n] == ',' ) {

if( ikey == 0 ) {

s = &( data[n+1] );

} else if( ikey == 1 ) {

if( data[n] == ',' ) { ierror = 1;printf("This is in error! (1)"); }

} else if( ikey == 2 ) {

if( data[n] == ',' ) { ierror = 1;printf("This is in error! (1b)");}

} else if( ikey == 3 ) {

if( iquote == 1 || ibra == 1 || ipar == 1 ) {

// we continue parsing because the quote/bracket/paren. is open

} else {

// this terminates the keyword

ikey = 0;

// parsing should take place

iparse = 1;

}

} else

// equal sign

if( data[n] == '=' ) {

if( ikey == 0 ) {

ierror = 1; printf("This is in error! (2)");

} else if( ikey == 1 ) {

// we are moving to the second stage

es = &( data[n] );

ikey = 2;

#ifdef _DEBUG2_

printf(" (equal sign) ");

#endif

} else if( ikey == 2 ) {

ierror = 1; printf("This is in error! (2b)");

} else if( ikey == 3 ) {

if( iquote == 1 || ibra == 1 || ipar == 1 ) {

// we continue parsing because the quote/bracket/paren. is open

#ifdef _DEBUG2_

printf(" (equal sign in key=3) ");

#endif

} else {

ierror = 1; printf("This is in error! (3)");

}

} else

// double quote

if( data[n] == '\"' ) {

if( ikey < 2 ) {

ierror = 1; printf("This is in error! (4) (stray quote) ");

} else if( ikey == 2 ) {

// entering data section of this keyword

ikey = 3;

#ifdef _DEBUG2_

printf(" (start data of keyword) ");

#endif

// open quote

iquote = 1;

} else {

if( data[n-1] == '\\' ) {

// simply pick it up as a character

} else {

// it is a functional quote (marker)

if( iquote == 1 ) {

// close the quote

iquote = 0;

// // indicate that we can parse

// ikey = 0;

// iparse = 1;

// let the next encounter terminate the parsing

} else {

ierror = 1; printf("This is in error! (4b) (stray quote) ");

}

} else

// newline or null

if( data[n] == '\n' || data[n] == '\0' ) {

if( ikey == 3 ) {

if( iquote == 1 || ibra == 1 || ipar == 1 ) {

ierror = 1;printf("This is in error! (5) (unterminated quote/bracket/paren.) ");

} else {

ikey = 0;

iparse = 1;

#ifdef _DEBUG2_

printf(" (parsing ending) ");

#endif

}

} else if( ikey == 2 ) {

ierror = 1; printf("This is in error! (5b) (empty keyword) ");

} else if( ikey == 1 ) {

ierror = 1; printf("This is in error! (5b) (empty keyword) ");

} else {

// termination of parsing everything

#ifdef _DEBUG2_

printf(" (parsing ending) ");

#endif

}

} else

// open bracket

if( data[n] == '[' ) {

if( ikey < 2 ) {

ierror = 1; printf("This is in error! (6) (stray bracket) ");

} else if( ikey == 2 ) {

// entering data section of this keyword...

ikey = 3;

// ...with an open bracket

ibra = 1;

#ifdef _DEBUG2_

printf(" (start data of keyword with bracket) ");

#endif

} else {

// simply open bracket

ibra = 1;

#ifdef _DEBUG2_

printf(" (open bracket) ");

#endif

}

} else

// close bracket

if( data[n] == ']' ) {

if( ikey < 3 ) {

ierror = 1; printf("This is in error! (7a) (stray bracket) ");

} else {

if( ibra != 1 ) {

ierror = 1; printf("This is in error! (7b) (stray bracket) ");

} else {

// simply close bracket

ibra = 0;

#ifdef _DEBUG2_

printf(" (close bracket) ");

#endif

}

} else

// open parenthesis

if( data[n] == '(' ) {

if( ikey < 2 ) {

ierror = 1; printf("This is in error! (8) (stray paren.) ");

} else if( ikey == 2 ) {

// entering data section of this keyword...

ikey = 3;

// ...with an open parenthesis

ipar = 1;

#ifdef _DEBUG2_

printf(" (start data of keyword with paren.) ");

#endif

} else {

// simply open parenthesis

ipar = 1;

#ifdef _DEBUG2_

printf(" (open paren.) ");

#endif

}

} else

// close parenthesis

if( data[n] == ')' ) {

if( ikey < 3 ) {

ierror = 1; printf("This is in error! (9) (stray paren.) ");

} else {

if( ipar != 1 ) {

ierror = 1; printf("This is in error! (9b) (stray paren.) ");

} else {

// simply close parenthesis

ipar = 0;

#ifdef _DEBUG2_

printf(" (close paren.) ");

#endif

}

} else

// anything else

{

if( ikey == 0 ) {

// check whether we are in a line of data

if( CheckCharForNum( data[n] ) == 1 ) {

// terminate parsing immediately; the zone header must be done

free( data );

#ifdef _DEBUG2_

printf(" (numerical string) \n");

#endif

return( -100 );

}

// encountered keyword

ikey = 1;

#ifdef _DEBUG2_

printf(" (start keyword) ");

#endif

} else if( ikey == 2 ) {

// entering data section of this keyword

ikey = 3;

#ifdef _DEBUG2_

printf(" (start data of keyword) ");

#endif

}

// provide some output

if( iparse == 1 ) {

#ifdef _DEBUG2_

printf(" (parsing now)");

#endif

data[n+0] = '\0';//HACK

int iret = HandleKeyword( s );

// allow for the possibility of dealiing with this differently...

if( iret == 0 ) ++np;

iparse = 0;

}

++n;

#ifdef _DEBUG2_

printf("\n");

#endif

}

// drop duplicate buffer

free( data );

if( ierror == 0 ) {

return( np );

} else {

#ifdef _DEBUG_

printf(" --- Error returned: %d \n", -10*ierror );

#endif

return( -10*ierror );

}

int inTec_Zone::HandleKeyword( char *buf )

{

#ifdef _DEBUG_

printf("\n i Handling keyword \n");

#endif

#ifdef _DEBUG2_

printf(" --- keyword -->|%s|<-- \n", buf );

#endif

// shift start of buffer to beginning of the keyword

char *s = buf;

while( s[0] == ' ' || s[0] == ',' ) s++;

#ifdef _DEBUG_

printf(" --- start keyword -->|%s|<-- \n", s );

#endif

// size to equal sign

size_t i=0,key_size=0;

while( s[ i ] != '=' ) {

// nullify spaces as you go

if( s[ i ] != ' ' ) {

++key_size;

} else {

s[key_size] = '\0';

}

++i;

}

#ifdef _DEBUG_

printf(" --- Equal sign at character %ld \n", i );

#endif

s[i] = '\0';

#ifdef _DEBUG_

printf(" --- Cleaned keyword: --->|%s|<--- \n", s );

#endif

// need to "shift" past the equal sign and to the beginning of the payload

char *p = &( s[ i+1] );

while( p[0] == ' ' && p[0] != '\0' ) p++;

#ifdef _DEBUG_

printf(" --- Payload: --->|%s|<--- \n", p );

#endif

// trials to match keyword

// (determine size of keyword and do per-size compar.)

int iret=1;

if( key_size == 1 ) {

if( strncasecmp( s, "T", 1 ) == 0 ) {

keywords["T"] = p;

iret = 0;

}

if( strncasecmp( s, "I", 1 ) == 0 ) {

keywords["I"] = p;

iret = 0;

}

if( strncasecmp( s, "J", 1 ) == 0 ) {

keywords["J"] = p;

iret = 0;

}

if( strncasecmp( s, "K", 1 ) == 0 ) {

keywords["K"] = p;

iret = 0;

}

if( strncasecmp( s, "E", 1 ) == 0 ) { // old keyword

keywords["E"] = p;

iret = 0;

}

if( strncasecmp( s, "N", 1 ) == 0 ) { // old keyword

keywords["N"] = p;

iret = 0;

}

if( strncasecmp( s, "F", 1 ) == 0 ) { // old keyword

keywords["F"] = p;

iret = 0;

}

if( key_size == 2 ) {

if( strncasecmp( s, "ET", 2 ) == 0 ) { // old keyword

keywords["ET"] = p;

iret = 0;

}

if( strncasecmp( s, "DT", 2 ) == 0 ) {

keywords["DT"] = p;

iret = 0;

}

if( strncasecmp( s, "NV", 2 ) == 0 ) {

keywords["NV"] = p;

iret = 0;

}

if( key_size == 5 ) {

if( strncasecmp( s, "NODES", 5 ) == 0 ) {

keywords["NODES"] = p;

iret = 0;

}

if( strncasecmp( s, "FACES", 5 ) == 0 ) {

keywords["FACES"] = p;

iret = 0;

}

if( key_size == 8 ) {

if( strncasecmp( s, "ELEMENTS", 8 ) == 0 ) {

keywords["ELEMENTS"] = p;

iret = 0;

}

if( strncasecmp( s, "ZONETYPE", 8 ) == 0 ) {

keywords["ZONETYPE"] = p;

iret = 0;

}

if( key_size == 11 ) {

if( strncasecmp( s, "DATAPACKING", 11 ) == 0 ) {

keywords["DATAPACKING"] = p;

iret = 0;

}

if( strncasecmp( s, "VARLOCATION", 11 ) == 0 ) {

keywords["VARLOCATION"] = p;

iret = 0;

}

if( key_size == 12 ) {

if( strncasecmp( s, "VARSHARELIST", 11 ) == 0 ) {

keywords["VARSHARELIST"] = p;

iret = 0;

}

return( iret );

}

int inTec_Zone::CheckCharForNum( char c ) const

{

if( c == '0' ) {

return(1);

} else if( c == '1' ) {

return(1);

} else if( c == '2' ) {

return(1);

} else if( c == '3' ) {

return(1);

} else if( c == '4' ) {

return(1);

} else if( c == '5' ) {

return(1);

} else if( c == '6' ) {

return(1);

} else if( c == '7' ) {

return(1);

} else if( c == '8' ) {

return(1);

} else if( c == '9' ) {

return(1);

} else if( c == '-' ) {

return(1);

} else if( c == '+' ) {

return(1);

} else if( c == '.' ) {

return(1);

} else {

return(0);

}

int inTec_Zone::ManageInternals( void )

{

#ifdef _DEBUG_

printf(" i Inside ManageInternals() \n");

#endif

int ierror=0,iret=0;

// processing individual keywords

const char *string=NULL,*string2=NULL;

size_t is;

int i=0;

std::map< std::string, std::string > :: iterator imap;

for( imap = keywords.begin(); imap != keywords.end(); ++imap ) {

printf(" %d ", i++ );

string = (*imap).first.c_str();

printf(" %s ", string );

string2 = (*imap).second.c_str();

printf(" \"%s\"\n", string2 );

// keywords by size

is = strlen( string );

if( is == 1 ) {

if( strncasecmp( string, "N", 1 ) == 0 ) {

iold_n = (unsigned long) atol( string2 );

}

if( strncasecmp( string, "E", 1 ) == 0 ) {

iold_e = (unsigned long) atol( string2 );

}

if( strncasecmp( string, "I", 1 ) == 0 ) {

im = (unsigned long) atol( string2 );

}

if( strncasecmp( string, "J", 1 ) == 0 ) {

jm = (unsigned long) atol( string2 );

}

if( strncasecmp( string, "K", 1 ) == 0 ) {

km = (unsigned long) atol( string2 );

}

if( strncasecmp( string, "T", 1 ) == 0 ) {

iret = HandleKeyword_T( string2 );

if( iret != 0 ) ierror += 1;

}

if( strncasecmp( string, "F", 1 ) == 0 ) {

// will deal with this later...

// iret = HandleKeyword_F( string2 );

if( iret != 0 ) ierror += 1;

}

if( is == 2 ) {

if( strncasecmp( string, "DT", 2 ) == 0 ) {

// will do this later...

}

if( strncasecmp( string, "ET", 2 ) == 0 ) {

iret = HandleKeyword_ET( string2 );

if( iret != 0 ) ierror += 1;

}

if( strncasecmp( string, "NV", 2 ) == 0 ) {

// will do this later...

}

if( is == 5 ) {

if( strncasecmp( string, "NODES", 5 ) == 0 ) {

nodes = (unsigned long) atol( string2 );

}

if( is == 8 ) {

if( strncasecmp( string, "ELEMENTS", 8 ) == 0 ) {

elems = (unsigned long) atol( string2 );

}

if( strncasecmp( string, "ZONETYPE", 8 ) == 0 ) {

iret = HandleKeyword_Zonetype( string2 );

if( iret != 0 ) ierror += 1;

}

if( is == 10 ) {

if( strncasecmp( string, "PARENTZONE", 10 ) == 0 ) {

parent_zone = atoi( string2 );

}

if( is == 11 ) {

if( strncasecmp( string, "VARLOCATION", 11 ) == 0 ) {

iret = HandleKeyword_Varlocation( string2 );

if( iret != 0 ) ierror += 1;

}

if( strncasecmp( string, "DATAPACKING", 11 ) == 0 ) {

iret = HandleKeyword_Datapacking( string2 );

if( iret != 0 ) ierror += 1;

}

if( is == 12 ) {

if( strncasecmp( string, "VARSHARELIST", 12 ) == 0 ) {

iret = HandleKeyword_Varsharelist( string2 );

if( iret != 0 ) ierror += 1;

}

// sanity checks for the zone's collected keywords

ierror += ConsistencyCheck();

// final error check

if( ierror != 0 ) {

iret = 1;

#ifdef _DEBUG_

printf(" e Exiting ManageInternals() in error (return %d) \n",iret);

#endif

return( iret );

}

// allocate memory for variables

// get a vertex and cell count

size_t iv=0,ie=0;

// first try the ordered zone sizes

if( ietype == ORDERED ) {

unsigned long imt,jmt,kmt;

#ifdef _DEBUG_

printf(" i Internal var. \"ietype\" indicates it is an ORDERED zone \n");

#endif

if( im - 1 == 0 ) { imt = 2; } else { imt = im; }

if( jm - 1 == 0 ) { jmt = 2; } else { jmt = jm; }

if( km - 1 == 0 ) { kmt = 2; } else { kmt = km; }

if( jm > 0 ) {

if( km > 0 ) {

iv = (size_t) (im*jm*km);

ie = (size_t) ((imt-1)*(jmt-1)*(kmt-1));

} else {

iv = (size_t) (im*jm);

ie = (size_t) ((imt-1)*(jmt-1));

}

} else {

iv = (size_t) im;

ie = (size_t) (imt-1);

}

// then try the unstruct. zone sizes

if( ietype != ORDERED ) {

#ifdef _DEBUG_

printf(" i Internal var. \"ietype\" indicates it is an unstr. zone \n");

#endif

iv = (size_t) nodes;

ie = (size_t) elems;

}

#ifdef _DEBUG_

printf(" i Number of vertices %ld, elements %ld \n",

(unsigned long) iv, (unsigned long) ie );

#endif

// sanity check

if( iv <= 0 || ie <= 0 ) {

printf(" e Cannot have zero nodes or zero elements \n");

iret = 1;

#ifdef _DEBUG_

printf(" e Exiting ManageInternals() in error (return %d) \n",iret);

#endif

return( iret );

}

// allocate memory for data arrays

for(int n=1;n<=num_var;++n) {

if( ivar_loc[n] == 1 ) {

double *p = (double *) malloc(iv*sizeof(double));

var_vec.push_back( p );

if( p == NULL ) ierror += 1;

#ifdef _DEBUG_

printf(" --- Vertex-data pointer at %p \n", p );

#endif

} else if( ivar_loc[n] == 2 ) {

double *p = (double *) malloc(ie*sizeof(double));

var_vec.push_back( p );

if( p == NULL ) ierror += 1;

#ifdef _DEBUG_

printf(" --- Cell-data pointer at %p \n", p );

#endif

} else {

// allow for the provision to skip allocating memory for a variable

}

// allocate memory for connectivity if needed

if( ietype != ORDERED ) {

if( ietype == FETRIANGLE ) ncon = 3;

if( ietype == FEQUADRILATERAL) ncon = 4;

if( ietype == FETETRAHEDRON) ncon = 4;

if( ietype == FEBRICK) ncon = 8;

size_t isize = (size_t) (elems*ncon);

if( icon == NULL ) {

icon = (unsigned long *) malloc(isize*sizeof(unsigned long));

}

if( icon == NULL ) ierror += 1;

}

// drop all memory on any allocation error

if( ierror != 0 ) {

#ifdef _DEBUG_

printf(" e There was an allocation error!\n");

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INTecplotLib/intecplot.cpp at master · nompelis/INTecplotLib · GitHub

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