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199 lines
6.5 KiB
199 lines
6.5 KiB
/*
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* Copyright (c) 1994 Sandia Corporation. Under the terms of Contract
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* DE-AC04-94AL85000 with Sandia Corporation, the U.S. Governement
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* retains certain rights in this software.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of Sandia Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*****************************************************************************
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*
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* exgelc - exodusII read element block connectivity
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*
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* author - Sandia National Laboratories
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* Larry A. Schoof - Original
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* James A. Schutt - 8 byte float and standard C definitions
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* Vic Yarberry - Added headers and error logging
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*
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* environment - UNIX
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*
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* entry conditions -
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* expelb must be called first to establish element block parameters.
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* input parameters:
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* int exoid exodus file id
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* int elem_blk_id element block id
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*
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* exit conditions -
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* int* connect connectivity array
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*
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* revision history -
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*
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* $Id: exgelc.c,v 1.1 2005/07/17 15:43:59 andy Exp $
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*/
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#include <stdlib.h>
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#include "exodusII.h"
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#include "exodusII_int.h"
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/*
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* reads the connectivity array for an element block
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*/
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int ex_get_elem_conn (int exoid,
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int elem_blk_id,
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int *connect)
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{
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int numelbdim, nelnoddim, connid, elem_blk_id_ndx, iresult;
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long num_elem_this_blk, num_nod_per_elem, start[2], count[2];
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nclong *longs;
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char errmsg[MAX_ERR_LENGTH];
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exerrval = 0; /* clear error code */
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/* Locate index of element block id in VAR_ID_EL_BLK array */
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elem_blk_id_ndx = ex_id_lkup(exoid,VAR_ID_EL_BLK,elem_blk_id);
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if (exerrval != 0)
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{
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if (exerrval == EX_NULLENTITY)
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{
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sprintf(errmsg,
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"Warning: no connectivity array for NULL block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg,EX_MSG);
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return (EX_WARN); /* no connectivity array for this element block */
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}
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else
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{
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sprintf(errmsg,
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"Error: failed to locate element block id %d in %s array in file id %d",
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elem_blk_id,VAR_ID_EL_BLK,exoid);
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ex_err("ex_get_elem_conn",errmsg,exerrval);
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return (EX_FATAL);
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}
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}
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/* inquire id's of previously defined dimensions */
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if ((numelbdim = ncdimid (exoid, DIM_NUM_EL_IN_BLK(elem_blk_id_ndx))) == -1)
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{
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exerrval = ncerr;
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sprintf(errmsg,
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"Error: failed to locate number of elements in block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg, exerrval);
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return(EX_FATAL);
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}
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if (ncdiminq (exoid, numelbdim, (char *) 0, &num_elem_this_blk) == -1)
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{
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exerrval = ncerr;
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sprintf(errmsg,
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"Error: failed to get number of elements in block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg,exerrval);
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return(EX_FATAL);
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}
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if ((nelnoddim = ncdimid (exoid, DIM_NUM_NOD_PER_EL(elem_blk_id_ndx))) == -1)
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{
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exerrval = ncerr;
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sprintf(errmsg,
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"Error: failed to locate number of nodes/elem for block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg,exerrval);
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return(EX_FATAL);
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}
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if (ncdiminq (exoid, nelnoddim, (char *) 0, &num_nod_per_elem) == -1)
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{
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exerrval = ncerr;
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sprintf(errmsg,
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"Error: failed to get number of nodes/elem for block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg, exerrval);
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return(EX_FATAL);
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}
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if ((connid = ncvarid (exoid, VAR_CONN(elem_blk_id_ndx))) == -1)
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{
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exerrval = ncerr;
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sprintf(errmsg,
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"Error: failed to locate connectivity array for block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg, exerrval);
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return(EX_FATAL);
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}
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/* read in the connectivity array */
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/* application code has allocated an array of ints but netcdf is expecting
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a pointer to nclongs; if ints are different sizes than nclongs,
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we must allocate an array of nclongs then convert them to ints with ltoi */
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start[0] = 0;
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start[1] = 0;
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count[0] = num_elem_this_blk;
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count[1] = num_nod_per_elem;
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if (sizeof(int) == sizeof(nclong)) {
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iresult = ncvarget (exoid, connid, start, count, connect);
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} else {
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if (!(longs = malloc (num_elem_this_blk*num_nod_per_elem * sizeof(nclong)))) {
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exerrval = EX_MEMFAIL;
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sprintf(errmsg,
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"Error: failed to allocate memory for element connectivity array for file id %d",
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exoid);
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ex_err("ex_get_elem_conn",errmsg,exerrval);
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return (EX_FATAL);
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}
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iresult = ncvarget (exoid, connid, start, count, longs);
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}
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if (iresult == -1)
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{
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exerrval = ncerr;
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sprintf(errmsg,
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"Error: failed to get connectivity array for block %d in file id %d",
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elem_blk_id,exoid);
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ex_err("ex_get_elem_conn",errmsg, exerrval);
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return(EX_FATAL);
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}
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if (sizeof(int) != sizeof(nclong)) {
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ltoi (longs, connect, num_elem_this_blk*num_nod_per_elem);
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free (longs);
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}
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return (EX_NOERR);
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}
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