vector.h

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/* Copyright (C) 2024 Chris Piker <chris-piker@uiowa.edu>
 *
 * This file is part of das2C, the Core Das C Library.
 * 
 * Das2C is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *
 * Das2C is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 2.1 along with Das2C; if not, see <http://www.gnu.org/licenses/>. 
 */
 
#ifndef _vector_h_
#define _vector_h_
 
#include <das2/value.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct das_geovec_t{
 
   /* The vector values if local */
   double comp[3];
 
   /* The ID of the vector frame, or 0 if unknown */
   ubyte   frame;  
 
   /* Frame type copied from Frame Descrptor */
   ubyte   ftype;
 
   /* the element value type, taken from das_val_type */
   ubyte   et;
 
   /* the size of each element, in bytes, copied in from das_vt_size */
   ubyte   esize; 
 
   /* Number of valid components */
   ubyte   ncomp;
 
   /* Direction for each component, storred in nibbles */ 
   ubyte   dirs[3];
 
} das_geovec;
 
DasErrCode das_geovec_init(
   das_geovec* pVec, const ubyte* pData, ubyte frame, ubyte ftype, 
   ubyte et, ubyte esize,  ubyte ncomp, const ubyte* pDirs
);
 
#define das_geovec_eltype(p) (p->vt & 0x0F)
 
 
#ifdef __cplusplus
}
#endif
 
#endif /* _vector_h_ */