#ifndef __VECTORLIST_H__
#define __VECTORLIST_H__
#ifdef __cplusplus
extern "C" {
#endif
# include "util.h"
# include "pdb.h"
# include "NRVects.h" 

# define US_PAPER_POINTS_WIDTH  612 /*  8.5 * 72 = 612 */
# define US_PAPER_POINTS_LENGTH 792 /* 11   * 72 = 792 */
# define MAX_LINEWIDTH 5.0 
# define MIN_LINEWIDTH 1.0 

typedef double AllocateNRVector3[4] ;
typedef double *PassNRVector3 ;

typedef struct {
  double ** NVects ;
  int       Nmax ;
  int       Nnow ;
  int    *  LineMove ;
  char      name[BUFSIZ] ;
} VectorList ;

void f_O_gdl_Vector (FILE * ff,double *v, int LineMove)
;
void AIDrawCAofSelection(file_records * f) 
;
void AISimplePrintVectors(VectorList * V) 
;
double CalcLineWidth(int flag, double ScaleFactor, double BaseLine, double z)
;
void AIPrint1Line (double *u, double *v, double LineWidth)
;
double * DrawingLimits(int flag,double *u)
;
void AIPrint1Vector (double *v, int LineMove)
;
void VectorListKludgeArrow (VectorList *V, double * v, double *u)
;
double ** VectorList3dCross (VectorList *V, double * v, double L)
;
void O_gdl_PrintVectorList (VectorList *V)
;
int AddToVectorList
  (VectorList * V, double v1, double v2, double v3, int LineMove)
;
VectorList * AllocateVectorList (int N, char *name)
;
void O_gdl_Vector (double *v, int LineMove)
;
void MolscriptDrawLine(NRVectP v1, NRVectP v2)
;



/* Already defined in nrvect.c */
# define DOT_PROD(u,v) (u[1]*v[1] + u[2]*v[2] + u[3]*v[3])
# define LENGTH(u) (sqrt(DOT_PROD(u,u)))

#ifdef __cplusplus
}
#endif
#endif /* !__VECTORLIST_H__ */