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/*------------------------------------------------------------------------
* Graphic library
* Copyright (C) 1998-2001 Enpc/Jean-Philippe Chancelier
* jpc@cermics.enpc.fr
--------------------------------------------------------------------------*/
#include "Math.h"
/*
* we use spConfig.h for machine constants
* XXX : spConfig should be merged and unified
* with other machine constant scilab code
*/
#define spINSIDE_SPARSE
#if defined(THINK_C) || defined (__MWERKS__)
#include "::sparse:spConfig.h"
#else
#include "../sparse/spConfig.h"
#endif
double Mini(vect, n)
double *vect;
integer n;
{
int i;
double vmin;
vmin = LARGEST_REAL;
for (i = 0 ; i < n ; i++)
/* if ( isinf(vect[i])== 0 && isnan(vect[i])==0 && vect[i] < vmin) */
if ( finite(vect[i])== 1 && vect[i] < vmin)
vmin=vect[i];
return(vmin);
}
double Maxi(vect, n)
double *vect;
integer n;
{
int i;
double maxi;
maxi= - LARGEST_REAL;
for (i =0 ; i < n ; i++)
/* if ( isinf(vect[i])== 0 && isnan(vect[i])==0 && vect[i] > maxi) */
if ( finite(vect[i])== 1 && vect[i] > maxi)
maxi=vect[i];
return(maxi);
}
/*----------------------------------------------------------------------------*/
/* perform the rotation of point from to point dest */
void rotate2D( double from[2], double center[2], double angle, double dest[2] )
{
double cosAngle = cos( angle ) ;
double sinAngle = sin( angle ) ;
rotate2Dim( from, center, cosAngle, sinAngle, dest ) ;
}
/*----------------------------------------------------------------------------*/
/* perform the rotation of point from to point to. */
/* the angle is directly given with its sine and cosine for speed */
void rotate2Dim( double from[2] ,
double center[2] ,
double cosAngle ,
double sinAngle ,
double dest[2] )
{
double diff[2] ;
/* put the center to (0,0) */
diff[0] = from[0] - center[0] ;
diff[1] = from[1] - center[1] ;
/* turn and translate back */
dest[0] = diff[0] * cosAngle - diff[1] * sinAngle + center[0] ;
dest[1] = diff[0] * sinAngle + diff[1] * cosAngle + center[1] ;
}
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/* perform the translation of point from to point to with vector trans */
void translate2D( double from[2], double trans[2], double dest[2] )
{
dest[0] = from[0] + trans[0] ;
dest[1] = from[1] + trans[1] ;
}
/*----------------------------------------------------------------------------*/
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