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/*------------------------------------------------------------------------
* Graphic library
* Copyright (C) 1998-2000 Enpc/Jean-Philippe Chancelier
* jpc@cereve.enpc.fr
--------------------------------------------------------------------------*/
#include <stdio.h>
#include <math.h>
#include <string.h>
#include "Math.h"
#include "PloEch.h"
static void GraySquare __PARAMS((integer *x,integer *y,double *z,
integer n1,integer n2));
static void GraySquare1 __PARAMS((integer *x,integer *y,double *z,
integer n1,integer n2));
/*------------------------------------------------------------
* - z is a (n1,n2) matrix
* - x is a (1,n1) matrix
* - y is a (1,n2) matrix
* - x,y,z are stored as one dimensionnal array in C
*
* z : is the value of a function on the grid defined by x,y
* on each rectangle the average value of z is computed
* and [zmin,zmax] is linearly remapped to the [colormin,colormap]
* values of colors in the current colormap
* the color associated to zmoy is used for filling a specific rectangle
*---------------------------------------------------------------*/
int C2F(xgray)(x,y,z,n1,n2,strflag,brect,aaint,l1)
double x[],y[],z[],brect[];
integer *n1,*n2,aaint[];
long int l1;
char strflag[];
{
int N = Max((*n1),(*n2));
double xx[2],yy[2];
integer *xm,*ym, j, nn1=1,nn2=2;
/** If Record is on **/
xx[0]=Mini(x,*n1);xx[1]=Maxi(x,*n1);
yy[0]=Mini(y,*n2);yy[1]=Maxi(y,*n2);
/** Boundaries of the frame **/
update_frame_bounds(0,"gnn",xx,yy,&nn1,&nn2,aaint,strflag,brect);
/** Allocation **/
if (GetDriver()=='R')
StoreGray("gray",x,y,z,n1,n2,strflag,brect,aaint);
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;
}
/** Draw Axis or only rectangle **/
axis_draw(strflag);
/** Drawing the curves **/
frame_clip_on();
for ( j =0 ; j < (*n1) ; j++) xm[j]= XScale(x[j]);
for ( j =0 ; j < (*n2) ; j++) ym[j]= YScale(y[j]);
GraySquare(xm,ym,z,*n1,*n2);
frame_clip_off();
C2F(dr)("xrect","v",&Cscale.WIRect1[0],&Cscale.WIRect1[1],&Cscale.WIRect1[2],&Cscale.WIRect1[3]
,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
return(0);
}
static void GraySquare_base(x, y, z, n1, n2)
integer x[],y[];
double *z;
integer n1,n2;
{
double zmoy,zmax,zmin,zmaxmin;
integer i,j,verbose=0,whiteid,narg,fill[1],cpat,xz[2];
zmin=Mini(z,(n1)*(n2));
zmax=Maxi(z,(n1)*(n2));
zmaxmin=zmax-zmin;
if (zmaxmin <= SMDOUBLE) zmaxmin=SMDOUBLE;
C2F(dr)("xget","lastpattern",&verbose,&whiteid,&narg,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
C2F(dr)("xget","pattern",&verbose,&cpat,&narg,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
C2F(dr)("xget","wdim",&verbose,xz,&narg, PI0, PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
for (i = 0 ; i < (n1)-1 ; i++)
for (j = 0 ; j < (n2)-1 ; j++)
{
integer w,h;
zmoy=1/4.0*(z[i+n1*j]+z[i+n1*(j+1)]+z[i+1+n1*j]+z[i+1+n1*(j+1)]);
fill[0]=1 + inint((whiteid-1)*(zmoy-zmin)/(zmaxmin));
C2F(dr)("xset","pattern",&(fill[0]),PI0,PI0,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
w=Abs(x[i+1]-x[i]);h=Abs(y[j+1]-y[j]);
/* We don't trace rectangle which are totally out **/
if ( w != 0 && h != 0 && x[i] < xz[0] && y[j+1] < xz[1] && x[i]+w > 0 && y[j+1]+h > 0 )
{
if ( Abs(x[i]) < int16max && Abs(y[j+1]) < int16max && w < uns16max && h < uns16max)
{
/* fprintf(stderr,"Rectangle %d,%d : %d,%d,%d,%d\n",i,j,x[i],y[j+1],w,h); */
C2F(dr)("xfrect","v",&x[i],&y[j+1],&w,&h,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
}
else
{
/* fprintf(stderr,"Rectangle too large \n"); */
}
}
}
C2F(dr)("xset","pattern",&cpat,PI0,PI0,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
}
static void GraySquare(x, y, z, n1, n2)
integer *x;
integer *y;
double *z;
integer n1;
integer n2;
{
if ( GetDriverId() == 0 )
/** accelerated version for X11 or Windows **/
fill_grid_rectangles(x, y, z, n1, n2);
else
GraySquare_base(x, y, z, n1, n2);
}
/*-------------------------------------------------------
* z : of size n1*n2
* the z value is interpreted as a color number inside the current colormap
* z[i,j] is used as the color of a square [i-0.5,i+0.5] [j-0.5,j+0.5]
*-------------------------------------------------------*/
int C2F(xgray1)(z,n1,n2,strflag,brect,aaint,l1)
double z[],brect[];
integer *n1,*n2,aaint[];
long int l1;
char strflag[];
{
int N = Max((*n1+1),(*n2+1));
double xx[2],yy[2];
static integer *xm,*ym,j, nn1=1,nn2=2;
xx[0]=0.5;xx[1]= *n2+0.5;
yy[0]=0.5;yy[1]= *n1+0.5;
/** Boundaries of the frame **/
update_frame_bounds(0,"gnn",xx,yy,&nn1,&nn2,aaint,strflag,brect);
/** If Record is on **/
if (GetDriver()=='R')
StoreGray1("gray1",z,n1,n2,strflag,brect,aaint);
/** Allocation **/
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;
}
/** Draw Axis or only rectangle **/
axis_draw(strflag);
/** Drawing the curves **/
frame_clip_on();
for ( j =0 ; j < (*n2+1) ; j++) xm[j]= XScale(j+0.5);
for ( j =0 ; j < (*n1+1) ; j++) ym[j]= YScale(((*n1)-j+0.5));
GraySquare1(xm,ym,z,*n1+1,*n2+1);
frame_clip_off();
C2F(dr)("xrect","v",&Cscale.WIRect1[0],&Cscale.WIRect1[1],&Cscale.WIRect1[2],&Cscale.WIRect1[3]
,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
return(0);
}
/*-------------------------------------------------------
* like xgray1 :
* but xrect here give the rectangle in which the
* grayplot is to be drawn using the current scale
-------------------------------------------------------*/
int C2F(xgray2)(z,n1,n2,xrect)
double z[],xrect[];
integer *n1,*n2;
{
double xx[2],yy[2];
integer xx1[2],yy1[2],nn1=1,nn2=2;
integer *xm,*ym, j;
/** If Record is on **/
if (GetDriver()=='R')
StoreGray2("gray2",z,n1,n2,xrect);
xx[0]=xrect[0];xx[1]=xrect[2];
yy[0]=xrect[1];yy[1]=xrect[3];
/** Boundaries of the frame **/
C2F(echelle2d)(xx,yy,xx1,yy1,&nn1,&nn2,"f2i",3L);
xm = graphic_alloc(0,*n2,sizeof(int));
ym = graphic_alloc(1,*n1,sizeof(int));
if ( xm == 0 || ym == 0 )
{
Scistring("Xgray: running out of memory\n");
return 0;
}
for ( j =0 ; j < (*n2+1) ; j++)
xm[j]= (int) (( xx1[1]*j + xx1[0]*((*n2)-j) )/((double) *n2));
for ( j =0 ; j < (*n1+1) ; j++)
ym[j]= (int) (( yy1[0]*j + yy1[1]*((*n1)-j) )/((double) *n1));
frame_clip_on();
GraySquare1(xm,ym,z,*n1+1,*n2+1);
frame_clip_off();
return(0);
}
/*-------------------------------------------------------
* x : of size n1 gives the x-values of the grid
* y : of size n2 gives the y-values of the grid
* z : of size (n1-1)*(n2-1) gives the f-values on the middle
* of each rectangle.
* z[i,j] is the value on the middle of rectangle
* P1= x[i],y[j] x[i+1],y[j+1]
*-------------------------------------------------------*/
static void GraySquare1_base(x, y, z, n1, n2)
integer *x;
integer *y;
double *z;
integer n1;
integer n2;
{
integer i,j,verbose=0,narg,fill[1],cpat,xz[2];
C2F(dr)("xget","pattern",&verbose,&cpat,&narg,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
C2F(dr)("xget","wdim",&verbose,xz,&narg, PI0, PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
for (i = 0 ; i < (n1)-1 ; i++)
for (j = 0 ; j < (n2)-1 ; j++)
{
integer w,h;
fill[0]= z[i+(n1-1)*j];
C2F(dr)("xset","pattern",&(fill[0]),PI0,PI0,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
w=Abs(x[j+1]-x[j]);
h=Abs(y[i+1]-y[i]);
/* We don't trace rectangle which are totally out **/
if ( w != 0 && h != 0 && x[j] < xz[0] && y[i] < xz[1] && x[j]+w > 0 && y[i]+h > 0 )
if ( Abs(x[j]) < int16max && Abs(y[i+1]) < int16max && w < uns16max && h < uns16max)
C2F(dr)("xfrect","v",&x[j],&y[i],&w,&h,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
}
C2F(dr)("xset","pattern",&cpat,PI0,PI0,PI0,PI0,PI0,PD0,PD0,PD0,PD0,0L,0L);
}
static void GraySquare1(x, y, z, n1, n2)
integer *x;
integer *y;
double *z;
integer n1;
integer n2;
{
if ( GetDriverId() == 0 )
/** accelerated version for X11 or Windows **/
fill_grid_rectangles1(x, y, z, n1, n2);
else
GraySquare1_base(x, y, z, n1, n2);
}
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