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/*------------------------------------------------------------------------
* Graphic library
* Copyright (C) 1998-2001 Enpc/Jean-Philippe Chancelier
* jpc@cermics.enpc.fr
--------------------------------------------------------------------------*/
#include <string.h>
#include <stdio.h>
#include <math.h>
#include "Math.h"
#include "PloEch.h"
extern void Plo2d1RealToPixel __PARAMS((integer *n1, integer *n2, double *x, double *y, integer *xm, integer *ym, char *xf));
/*--------------------------------------------------------------------
C2F(plot2d1)(xf,x,y,n1,n2,style,strflag,legend,brect,aint)
similar to plot2d plus one additionnal argument xf
and a special treatment for x
there's a splecial treatment for x
if xf[0]='e' for empty : x can point to nothing, the x -values
are assumed to be x[i+(*n2)*j]= i
if xf[0]='o' for one : all the curves have the same x values
x is of size *n2 xx[i+(*n2)*j] = x[i];
if xf[0]='g' for general : x is of size (*n2)*(n1);
xf[1]='l' or 'n' LogAxis or standard on X
xf[2]='l' or 'n' LogAxis or standard on Y
--------------------------------------------------------------------------*/
int C2F(plot2d1)(char *xf, double *x, double *y, integer *n1, integer *n2, integer *style, char *strflag, char *legend, double *brect, integer *aaint, integer l1, integer l2, integer l3)
{
int n;
integer *xm,*ym, nn2=(*n2);
if ( CheckxfParam(xf)== 1) return(0);
/** Boundaries of the frame **/
update_frame_bounds(0,xf,x,y,n1,n2,aaint,strflag,brect);
/* Storing values if using the Record driver */
if (GetDriver()=='R')
StorePlot("plot2d1",xf,x,y,n1,n2,style,strflag,legend,brect,aaint);
/** Allocation **/
n = (*n1)*nn2 ;
if ( n != 0 )
{
xm = graphic_alloc(0,n,sizeof(int));
ym = graphic_alloc(1,n,sizeof(int));
if ( xm == 0 || ym == 0)
{
sciprint("Running out of memory \n");
return 0;
}
/** Real to Pixel values **/
Plo2d1RealToPixel(n1,n2,x,y,xm,ym,xf);
}
/** Drawing axes **/
axis_draw(strflag);
/** Drawing the curves **/
if ( n != 0 )
{
frame_clip_on();
C2F(dr)("xpolys","v",xm,ym,style,n1,&nn2 ,PI0,PD0,PD0,PD0,PD0,0L,0L);
frame_clip_off();
/** Drawing the Legends **/
if ((int)strlen(strflag) >=1 && strflag[0] == '1')
Legends(style,n1,legend);
}
return(0);
}
extern void Plo2d1RealToPixel(integer *n1, integer *n2, double *x, double *y, integer *xm, integer *ym, char *xf)
{
integer i,j;
/** Computing y-values **/
if ((int)strlen(xf) >= 3 && xf[2]=='l')
{
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
ym[i+(*n2)*j]= YLogScale(y[i+(*n2)*j]);
}
else
{
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
ym[i+(*n2)*j]= YScale(y[i+(*n2)*j]);
}
/** Computing x-values **/
switch (xf[0])
{
case 'e' :
/** No X-value given by the user **/
if ((int)strlen(xf) >= 2 && xf[1]=='l')
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
xm[i+(*n2)*j]= XLogScale(i+1.0);
else
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
xm[i+(*n2)*j]= XScale(i+1.0);
break ;
case 'o' :
if ((int)strlen(xf) >= 2 && xf[1]=='l')
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
xm[i+(*n2)*j]= XLogScale(x[i]);
else
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
xm[i+(*n2)*j]= XScale(x[i]);
break;
case 'g' :
default:
if ((int)strlen(xf) >= 2 && xf[1]=='l')
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
xm[i+(*n2)*j]= XLogScale(x[i+(*n2)*j]);
else
for ( i=0 ; i < (*n2) ; i++)
for (j=0 ; j< (*n1) ; j++)
xm[i+(*n2)*j]= XScale(x[i+(*n2)*j]);
break;
}
}
int CheckxfParam(char *xf)
{
if ( strlen(xf) < 3 )
{
sciprint("Error : first argument must be a string of length 3");
return(1);
}
if ( xf[0] != 'g' && xf[0] != 'e' && xf[0] != 'o' )
{
sciprint("Error : wrong first character in string \"%s\"\n",xf);
return(1) ;
}
if ( xf[1] != 'l' && xf[1] != 'n' )
{
sciprint("Error : wrong second character in string \"%s\"\n",xf);
return(1) ;
}
if ( xf[2] != 'l' && xf[2] != 'n' )
{
sciprint("Error : wrong third character in string \"%s\"\n",xf);
return(1) ;
}
return(0);
}
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