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PPM_output.c
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PPM_output.c
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/*
Copyright (C) 2003 The GeoFramework Consortium
This file is part of Ellipsis3D.
Ellipsis3D is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2,
as published by the Free Software Foundation.
Ellipsis3D 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 General Public License for more details.
Authors:
Louis Moresi <[email protected]>
Richard Albert <[email protected]>
*/
/* */
/* Routines to produce ppm format pixmaps of
2D citcom data during runs for diagnostic
purposes and to produce movies. */
#include "config.h"
#include <math.h>
#if HAVE_STRING_H
#include <string.h>
#endif
#if HAVE_STRINGS_H
#include <strings.h>
#endif
#include <stdlib.h>
#include "element_definitions.h"
#include "global_defs.h"
#define MAX_CMAP_SECTIONS 99
struct colormap {
int sections;
int background_R;
int background_G;
int background_B;
float low[MAX_CMAP_SECTIONS];
float opacity_low[MAX_CMAP_SECTIONS];
int low_R[MAX_CMAP_SECTIONS];
int low_G[MAX_CMAP_SECTIONS];
int low_B[MAX_CMAP_SECTIONS];
float high[MAX_CMAP_SECTIONS];
float opacity_high[MAX_CMAP_SECTIONS];
int high_R[MAX_CMAP_SECTIONS];
int high_G[MAX_CMAP_SECTIONS];
int high_B[MAX_CMAP_SECTIONS];
};
struct ppm {
int x;
int y;
int *R;
int *G;
int *B;
};
/* test routine to create a temperature/viscosity/etc pixmap (no interpolation) */
void generate_2Ddata_pixmap(
struct All_variables *E,
char *name
)
{
int PPM_plot_number;
int i,j;
int newX,newZ,offX,offZ;
int border,vel_plot_height,vel_plot_width;
int colorbar_width;
/*RAA: 7/1/02, added these 3 lines for multiple tracer plots (separate y-slices) per ppm file*/
int newX2,newZ2,offX2,offZ2,newX3,newZ3,offX3,offZ3;
int border2,vel_plot_height2,vel_plot_width2,yslices;
standard_precision aspect2;
char name_plus[256];
struct colormap cmap;
struct ppm pixmap;
standard_precision aspect;
standard_precision *interp_data,*coarse_ndata,*coarse_edata;
int which_colormap();
void output_ppm();
void simple_interp_2D();
void horiz_respacing_n();
void add_field_to_pixmap();
void add_surf_graph_to_pixmap();
void add_tracers_to_pixmap();
void add_border_to_pixmap();
void add_cross_sections_to_pixmap();
#if defined(__uxp__)
return;
#endif
vel_plot_width = vel_plot_height = 0;
/*RAA: 4/01/02, to put multiple plots per ppm file - added the 4 lines below
but for 3D since x:z aspect ratios != 1 give Seg Faults, do 1 slice for them*/
if(E->mesh.nsd == 2 || (E->mesh.nsd==3 && E->x[1][E->mesh.nno]!=E->x[2][E->mesh.nno]))
yslices = 1;
else if (E->mesh.nsd==3 && E->x[1][E->mesh.nno]==E->x[2][E->mesh.nno])
yslices = 3;
for(PPM_plot_number=0;PPM_plot_number<E->control.PPM_files;PPM_plot_number++) {
/* Size of the new pixmap. Fix the file size (i.e. area)
to be manageable - 150000 pixels give or take*/
if(E->control.PPM_surf_plot[PPM_plot_number])
vel_plot_height=max(35,(int) (E->control.PPM_height * 0.15));
else
vel_plot_height=0;
for(i=0;i<E->tracer.SAMPLE_PTS;i++) { /*RAA: new stuff here*/
if(! (E->tracer.sample_in_plot[i] == PPM_plot_number))
continue;
if (yslices==1) { /*smaller plot for 1 slice ppms*/
if (E->tracer.sample_direction[i] == 1) {
vel_plot_height=max(35,(int) (E->control.PPM_height * 0.15));
}
else if (E->tracer.sample_direction[i] == 2) {
vel_plot_width=max(75,(int) (E->control.PPM_height * 0.3));
}
/*RAA: add this part to help get y sections in a different location*/
else if (E->mesh.nsd==3 && E->tracer.sample_direction[i] == 3) {
vel_plot_height=max(25,(int) (E->control.PPM_height * 0.15));
}
}
else { /*more than 1 yslice (for 1:1 aspect ratio w/ 3D problem)*/
if (E->tracer.sample_direction[i] == 1) {
vel_plot_height=max(165,(int) (E->control.PPM_height * 0.15));
}
else if (E->tracer.sample_direction[i] == 2) {
vel_plot_width=max(241,(int) (E->control.PPM_height * 0.3));
}
/*RAA: add this part to help get y sections in a different location*/
else if (E->tracer.sample_direction[i] == 3) {
vel_plot_height=max(110,(int) (E->control.PPM_height * 0.15));
}
}
}
newZ=min(450,E->control.PPM_height);
border = 15;
aspect = (E->x[1][E->mesh.nno]-E->x[1][1]) / (E->x[2][E->mesh.nno]-E->x[2][1]);
newX = (int) (aspect * newZ);
/* set pixmap dimensions */
pixmap.x = max(newX,E->control.PPM_aspect*newZ) + 3 * border + vel_plot_width;
pixmap.y = newZ + 3 * border + vel_plot_height;
/* allocate mem to new pixmap */
pixmap.R = (int *) Malloc0((pixmap.x * pixmap.y + 1) * sizeof(int));
pixmap.G = (int *) Malloc0((pixmap.x * pixmap.y + 1) * sizeof(int));
pixmap.B = (int *) Malloc0((pixmap.x * pixmap.y + 1) * sizeof(int));
interp_data = (standard_precision *) Malloc0((newX*newZ+1) * sizeof(standard_precision));
/* set to bg color */
for(i=0;i<=pixmap.x * pixmap.y;i++) {
pixmap.R[i] = 255;
pixmap.G[i] = 255;
pixmap.B[i] = 255;
}
/* Main plot with tracers */
if(E->control.verbose)
fprintf(stderr,"Build tracer pixmap\n");
offZ = 2 * border + vel_plot_height;
offX = border;
add_tracers_to_pixmap(E,E->tracer,&pixmap,newX,newZ,offX,offZ,0,PPM_plot_number,1,yslices);
/*RAA: this approach obviously not too elegant, but should do for triage*/
if (E->mesh.nsd==3 && yslices==2) {
fprintf(stderr,"RAA: Adding another box for 2nd y-slice\n");
offZ2 = 0.00 * border + 0.05*vel_plot_height;
offX2 = 10*border;
add_tracers_to_pixmap(E,E->tracer,&pixmap,newX,newZ,offX2,offZ2,0,PPM_plot_number,2,yslices);
add_border_to_pixmap(E,&pixmap,newX,newZ,offX2,offZ2,50,50,50);
}
else if (E->mesh.nsd==3 && yslices==3) {
fprintf(stderr,"RAA: Adding another box for 2nd y-slice\n");
offZ2 = -0.00 * border + 0.05*vel_plot_height;
offX2 = 10*border;
add_tracers_to_pixmap(E,E->tracer,&pixmap,newX,newZ,offX2,offZ2,0,PPM_plot_number,2,yslices);
add_border_to_pixmap(E,&pixmap,newX,newZ,offX2,offZ2,50,50,50);
fprintf(stderr,"RAA: Adding another box for 3rd y-slice\n");
offZ3 = offZ2;
offX3 = 18*border + 7;
add_tracers_to_pixmap(E,E->tracer,&pixmap,newX,newZ,offX3,offZ3,0,PPM_plot_number,3,yslices);
add_border_to_pixmap(E,&pixmap,newX,newZ,offX3,offZ3,50,50,50);
}
if(E->control.verbose)
fprintf(stderr,"Build tracer pixmap ... done\n");
/* Add outline to plot region of pixmap (RAA: slices 2 and 3 done above)*/
add_border_to_pixmap(E,&pixmap,newX,newZ,offX,offZ,50,50,50);
/* Add sample cross-sections to pixmap */
if(E->control.verbose)
fprintf(stderr,"Cross sections to pixmap\n");
/*RAA: added some stuff here to try and get y-dir plots in different location - NO IMPACT*/
/*RAA: 22/05/02, but this new stuff may cause a Seg fault, because of i, so comment it out for now.*/
/* fprintf(stderr,"Gus, debug - location 0 i: %d \n",i); */
/* fprintf(stderr,"Gus, debug - location 0 i: %d dir: %d\n",i,E->tracer.sample_direction[i]); */
/* if (E->tracer.sample_direction[i] != 3) {
offZ = 2 * border + vel_plot_height;
offX = 2 * border + vel_plot_width;
}
else if (E->tracer.sample_direction[i] == 3) {
offZ = 3 * border + vel_plot_height;
offX = 3 * border + vel_plot_width;
}
*/
offZ = 2 * border + vel_plot_height;
offX = 2 * border + vel_plot_width;
add_cross_sections_to_pixmap(E,&pixmap,border,newX,newZ,
offX,offZ,vel_plot_height,vel_plot_width,
PPM_plot_number);
if(E->control.verbose)
fprintf(stderr,"Cross sections to pixmap ... done \n");
/* Add a surface plot pixmap */
if(0 && (E->control.PPM_surf_plot[PPM_plot_number] <= 5) && (E->control.PPM_surf_plot[PPM_plot_number]> 0)) {
switch(E->control.PPM_surf_plot[PPM_plot_number]) {
case 1:
horiz_respacing_n(E,E->slice.vxsurf[1],interp_data,1,newX);
for(i=1;i<=newX;i++)
interp_data[i] *= 31.5576e6; /* convert to m/yr */
break;
case 2:
horiz_respacing_n(E,E->slice.tpg,interp_data,1,newX);
break;
case 3:
horiz_respacing_n(E,E->slice.grv,interp_data,1,newX);
break;
case 4:
horiz_respacing_n(E,E->slice.grvt,interp_data,1,newX);
break;
case 5:
horiz_respacing_n(E,E->slice.shflux,interp_data,1,newX);
}
add_surf_graph_to_pixmap(E,interp_data,&pixmap,cmap,newX,border,border,
vel_plot_height,1,50,50,50,PPM_plot_number);
}
sprintf(name_plus,"%s%d",name,PPM_plot_number);
if(E->control.verbose)
fprintf(stderr,"Writing ppm file: %s\n",name_plus);
output_ppm(E,name_plus,pixmap);
/* free up memory (another pixmap may be different size) */
free((void *) pixmap.R);
free((void *) pixmap.G);
free((void *) pixmap.B);
free((void *) interp_data);
}
return;
}
/* Output ppm file */
void output_ppm(
struct All_variables *E,
char *name,
struct ppm pixmap
)
{
FILE *fp;
int i;
char byte;
char command[5000];
if((fp=fopen(name,"w")) != NULL) {
fprintf(fp,"P6\n"); /* Magic # */
fprintf(fp,"%d\n",pixmap.x); /* Width */
fprintf(fp,"%d\n",pixmap.y); /* Height */
fprintf(fp,"255\n"); /* Maxval */
for(i=1;i<=pixmap.x*pixmap.y;i++) {
byte=pixmap.R[i];
putc(byte,fp);
byte=pixmap.G[i];
putc(byte,fp);
byte=pixmap.B[i];
putc(byte,fp);
}
fclose(fp);
}
#if !defined ( SLAVE_TO_GENETICS )
if(E->control.COMPRESS){
/*sprintf(command,"%s -f %s",COMPRESS_BINARY,name);*/
sprintf(command,"%s -f %s",E->control.gzip,name); /*DAS: 17-01-03*/
system(command);
}
#else
fprintf(stderr,"Created image file %s\n",name);
#endif
return;
}
/* Layers the representation for m*n field onto
the existing pixmap. Field is a citcom field
which has been interpolated to the appropriate
grid density (but in std coordinate system).
If the dimensions do not agree
then the function aborts */
void add_field_to_pixmap(
struct All_variables *E,
standard_precision *field,
struct ppm *pixmap,
struct colormap cmap,
int m,
int n,
int om,
int on,
int edging,
int eR,
int eG,
int eB
)
{
int i,j;
int R,G,B;
int Rs,Gs,Bs;
int Rh,Gh,Bh;
int px,py,pp;
float Op,Oph,Ops;
void supply_color();
const int mx = pixmap->x;
const int my = pixmap->y;
for(i=1;i<=m;i++)
for(j=1;j<=n;j++) {
/* Where is this pixel in the larger pixmap ?
If it's off the edge, carry on to next pixel */
px = om + i;
py = on + j;
if(px > mx || py > my || px < 0 || py < 0)
continue;
pp = px + (py-1) * mx;
/* obtain colormap entry */
supply_color(E,cmap,field[j+(i-1)*n],&R,&G,&B,&Op);
/* overlay onto existing ppm */
if(R >= 0)
pixmap->R[pp] = (int)(Op * R + (1-Op)* pixmap->R[pp]);
if(G >= 0)
pixmap->G[pp] = (int)(Op * G + (1-Op)* pixmap->G[pp]);
if(B >= 0)
pixmap->B[pp] = (int)(Op * B + (1-Op)* pixmap->B[pp]);
if(pixmap->R[pp] > 255)
pixmap->R[pp] = 255;
if(pixmap->G[pp] > 255)
pixmap->G[pp] = 255;
if(pixmap->B[pp] > 255)
pixmap->B[pp] = 255;
}
/* Add border to the pixmap if requested */
if(edging) {
for(i=0;i<=m+1;i++) {
px = om + i;
py = on;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
py = on + n + 1;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
}
for(j=1;j<=n;j++) {
py = on + j;
px = om;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
px = om + m + 1;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
}
}
return;
}
/* Add border to the pixmap as requested */
void add_border_to_pixmap(
struct All_variables *E,
struct ppm *pixmap,
int m,
int n,
int om,
int on,
int eR,
int eG,
int eB
)
{
int i,j,k;
int R,G,B;
int px,py,pp;
int resx,resz;
int n1,n2;
standard_precision maxX,minX,maxZ,minZ;
standard_precision X,Z;
float Op;
void supply_color();
const int mx = pixmap->x;
const int my = pixmap->y;
resx = 5 * m / E->mesh.elx;
resz = 5 * n / E->mesh.elz;
minX = minZ = 1.0e32;
maxX = maxZ =-1.0e32;
for(i=1;i<=E->mesh.nno;i++) {
if(E->x[1][i] > maxX)
maxX = E->x[1][i];
if(E->x[2][i] > maxZ)
maxZ = E->x[2][i];
if(E->x[1][i] < minX)
minX = E->x[1][i];
if(E->x[2][i] < minZ)
minZ = E->x[2][i];
}
for(i=1;i<E->mesh.nox;i++) {
/* Across the top surface */
n1 = 1 + (i-1) * E->mesh.noz;
n2 = n1 + E->mesh.noz;
for(k=0;k<=resx;k++) {
X = ((E->x[1][n1] + k * (E->x[1][n2]-E->x[1][n1]) / resx) - minX) / (maxX-minX);
Z = ((E->x[2][n1] + k * (E->x[2][n2]-E->x[2][n1]) / resx) - minZ) / (maxZ-minZ);
px = om + m * X;
py = on + n * Z;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
}
/* Across the bottom surface */
n1 = E->mesh.noz + (i-1) * E->mesh.noz;
n2 = n1 + E->mesh.noz;
for(k=0;k<=resx;k++) {
X = ((E->x[1][n1] + k * (E->x[1][n2]-E->x[1][n1]) / resx) - minX) / (maxX-minX);
Z = ((E->x[2][n1] + k * (E->x[2][n2]-E->x[2][n1]) / resx) - minZ) / (maxZ-minZ);
px = om + m * X;
py = 1 + on + n * Z;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
}
}
for(i=1;i<E->mesh.noz;i++) {
/* Down the left surface */
n1 = i;
n2 = n1 + 1;
for(k=0;k<=resz;k++) {
X = ((E->x[1][n1] + k * (E->x[1][n2]-E->x[1][n1]) / resz)- minX) / (maxX-minX);
Z = ((E->x[2][n1] + k * (E->x[2][n2]-E->x[2][n1]) / resz)- minZ) / (maxZ-minZ);
px = om + m * X;
py = on + n * Z;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
}
/* Down the right surface */
n1 = i + (E->mesh.nox-1) * E->mesh.noz;
n2 = n1 + 1;
for(k=0;k<=resz;k++) {
X = ((E->x[1][n1] + k * (E->x[1][n2]-E->x[1][n1]) / resz) - minX) / (maxX-minX);
Z = ((E->x[2][n1] + k * (E->x[2][n2]-E->x[2][n1]) / resz) - minZ) / (maxZ-minZ);
px = 1 + om + m * X;
py = on + n * Z;
if(!(px > mx || py > my || px < 0 || py < 0)) {
pp = px + (py-1) * mx;
pixmap->R[pp] = eR;
pixmap->G[pp] = eG;
pixmap->B[pp] = eB;
}
}
}
return;
}
void add_cross_sections_to_pixmap (
struct All_variables *E,
struct ppm *pixmap,
int border,
int m,
int n,
int om,
int on,
int height,
int width,
int PPM_plot_number
)
{
int i,j,sample;
int R,G,B;
int px,py,pp;
int dots;
int element;
standard_precision xx,z1,z2,zz,x1,x2;
standard_precision yy; /*RAA: 4/01/02, added this line*/
standard_precision phi;
standard_precision *plot_variable;
standard_precision *Node;
standard_precision xmin,xmax,zmin,zmax;
standard_precision ymin,ymax; /*RAA: added this line*/
standard_precision scale;
const int mx = pixmap->x;
const int my = pixmap->y;
standard_precision lN[ELNMAX+1];
standard_precision eta1,eta2,eta3;
standard_precision dOmega;
Node = (standard_precision *)Malloc0((E->mesh.nno+2)*sizeof(standard_precision));
xmin = min(E->x[1][1],E->x[1][E->mesh.noz]);
xmax = max(E->x[1][E->mesh.nno-E->mesh.noz+1],E->x[1][E->mesh.nno]);
zmin = min(E->x[2][1],E->x[2][E->mesh.nno-E->mesh.noz+1]);
zmax = max(E->x[2][E->mesh.noz],E->x[2][E->mesh.nno]);
/*RAA: 4 new lines below*/
if(E->mesh.nsd==3) {
ymin = min(E->x[3][1],E->x[3][E->mesh.noz]);
ymax = max(E->x[3][E->mesh.nno-E->mesh.noz+1],E->x[3][E->mesh.nno]);
}
/* Run through each of the sampling locations to see if we need to plot anything */
for(sample=0;sample<E->tracer.SAMPLE_PTS;sample++) {
if(! (E->tracer.sample_in_plot[sample] == PPM_plot_number))
continue;
/* Which (interpolated) variable are we going to plot ? */
switch(E->tracer.sample_type[sample]) {
case 1:
plot_variable=E->T;
break;
case 2:
plot_variable=E->V[1];
break;
case 3:
plot_variable=E->V[2];
break;
case 4:
plot_variable=E->nQ;
break;
case 5:
plot_variable=E->edot;
break;
case 6:
plot_variable=E->strd;
break;
case 7:
plot_variable=E->strs;
break;
case 8:
plot_variable=E->V[3];
break;
case 9:
plot_variable=E->V[4];
break;
case 10:
plot_variable=E->V[5];
break;
case 11:
plot_variable=E->V[6];
break;
case 12:
gs_tracers_to_nodes(E,Node,NULL,NULL,NULL,E->tracer.grain_size,E->mesh.levmax,0);
plot_variable=Node;
break;
case 13:
gs_tracers_to_nodes(E,Node,NULL,NULL,NULL,E->tracer.sigma_n,E->mesh.levmax,0);
plot_variable=Node;
break;
case 14: /*RAA: 24/09/02, C. O'Neill - melting stuff */
plot_variable=E->depl;
break;
case 15:
plot_variable=E->strd1;
break;
default:
fprintf(stderr,
"This sample type is not supported: %d\n",
E->tracer.sample_type[sample]);
exit(1);
}
/* Should be able to use the data which was previously computed in the
processing of the profile output files */
scale = E->tracer.sample_plotmax[sample] - E->tracer.sample_plotmin[sample];
if(E->control.print_convergence)
fprintf(stderr,"Plotting profile %d between %g and %g ... direction %d\n",sample,
E->tracer.sample_plotmax[sample],E->tracer.sample_plotmin[sample],E->tracer.sample_direction[sample]);
fprintf(E->fp,"Plotting profile %d between %g and %g\n",sample,
E->tracer.sample_plotmax[sample],E->tracer.sample_plotmin[sample]);
/* Which direction */
if(E->tracer.sample_direction[sample] == 1) {
/* Obtain a series of sample points */
zz = E->tracer.sample_z[sample];
if(E->mesh.nsd == 3)
yy = E->tracer.sample_y[sample];
else
yy = 0.0;
/*RAA: 4/01/02, added the 4 lines above*/
element=1;
for(i=1;i<=m;i++) { /* scan across the surface */
xx = xmin + (xmax - xmin) * (i-1.0) / (m-1);
/*RAA: 4/01/02, changed 0.0 to yy below*/
element = general_tracers_element(E,element,xx,zz,yy,&eta1,&eta2,&eta3,E->mesh.levmax);
/* field value at this point */
if(element == -1) {
fprintf(stderr,"Problem w/ sample# %d, counter: i= %d, element not found\n",sample,i);
continue;
}
v_shape_fn(E,element,lN,eta1,eta2,eta3,E->mesh.levmax);
phi=0.0;
for(j=1;j<=enodes[E->mesh.nsd];j++) {
phi += plot_variable[E->ien[element].node[j]] * lN[j];
}
/* This tells us where to plot ... */
if(phi > E->tracer.sample_plotmax[sample] || phi < E->tracer.sample_plotmin[sample])
continue;
px = border + i;
py = border + height;
if(scale != 0.0)
py -= (int)(height * (phi - E->tracer.sample_plotmin[sample]) / scale) ;
pp = px + (py-1) * mx;
pixmap->R[pp] = (int) 255.0 * E->tracer.sample_Red[sample];
pixmap->G[pp] = (int) 255.0 * E->tracer.sample_Green[sample];
pixmap->B[pp] = (int) 255.0 * E->tracer.sample_Blue[sample];
}
for(i=1;i<=height;i++) {
px = border;
py = border + i;
pp = px + (py-1) * mx;
pixmap->R[pp] = pixmap->G[pp] = pixmap->B[pp] = 0;
px = border + m;
py = border + i;
pp = px + (py-1) * mx;
pixmap->R[pp] = pixmap->G[pp] = pixmap->B[pp] = 0;
}
}
else if(E->tracer.sample_direction[sample] == 2) { /* Z */
/* Obtain a series of sample points */
xx = E->tracer.sample_x[sample];
if(E->mesh.nsd == 3)
yy = E->tracer.sample_y[sample];
else
yy = 0.0;
/*RAA: 4/01/02, added the 4 lines above*/
element=1;
for(i=1;i<=n;i++) { /* scan across the surface */
zz = zmin + (zmax - zmin) * (i-1.0) / (n-1);
/*RAA: 4/01/02, changed 0.0 to yy below*/
element = general_tracers_element(E,element,xx,zz,yy,&eta1,&eta2,&eta3,E->mesh.levmax);
/* field value at this point */
if(element == -1) {
fprintf(stderr,"Problem w/ sample# %d, counter: i= %d, element not found\n",sample,i);
continue;
}
v_shape_fn(E,element,lN,eta1,eta2,eta3,E->mesh.levmax);
phi=0.0;
for(j=1;j<=enodes[E->mesh.nsd];j++) {
phi += plot_variable[E->ien[element].node[j]] * lN[j];
}
/* This tells us where to plot ... */
if(phi > E->tracer.sample_plotmax[sample] || phi < E->tracer.sample_plotmin[sample])
continue;
py = on + i ;
px = 2 * border + m;
if(scale != 0.0)
px += (int) (width * (phi - E->tracer.sample_plotmin[sample]) / scale) ;
pp = px + (py-1) * mx;
pixmap->R[pp] = (int) 255.0 * E->tracer.sample_Red[sample];
pixmap->G[pp] = (int) 255.0 * E->tracer.sample_Green[sample];
pixmap->B[pp] = (int) 255.0 * E->tracer.sample_Blue[sample];
}
for(i=1;i<=width;i++) {
px = 2 * border + m + i;
py = 2 * border + height;
pp = px + (py-1) * mx;
pixmap->R[pp] = pixmap->G[pp] = pixmap->B[pp] = 0;
px = 2 * border + m + i;
py = 2 * border + height + n;
pp = px + (py-1) * mx;
pixmap->R[pp] = pixmap->G[pp] = pixmap->B[pp] = 0;
}
}
/*RAA: 7/01/02, added this bit for Y-direction sampling*/
else if(E->mesh.nsd == 3 && E->tracer.sample_direction[sample] == 3) { /* Y */
/* Obtain a series of sample points */
xx = E->tracer.sample_x[sample];
zz = E->tracer.sample_z[sample];
element=1;
for(i=1;i<=m;i++) { /* scan across the surface */
yy = ymin + (ymax - ymin) * (i-1.0) / (n-1);
element = general_tracers_element(E,element,xx,zz,yy,&eta1,&eta2,&eta3,E->mesh.levmax);
/* field value at this point */
if(element == -1) {
fprintf(stderr,"Problem w/ sample# %d, counter: i= %d, element not found\n",sample,i);
continue;
}
v_shape_fn(E,element,lN,eta1,eta2,eta3,E->mesh.levmax);
phi=0.0;
for(j=1;j<=enodes[E->mesh.nsd];j++) {
phi += plot_variable[E->ien[element].node[j]] * lN[j];
}
/* This tells us where to plot ... */ /*RAA: 7/01/02, set up to plot with x-along the top*/
if(phi > E->tracer.sample_plotmax[sample] || phi < E->tracer.sample_plotmin[sample])
continue;
px = border + i;
py = border + 1.*height;
if(scale != 0.0)
py -= (int)(height * (phi - E->tracer.sample_plotmin[sample]) / scale) ;
pp = px + (py-1) * mx;
pixmap->R[pp] = (int) 255.0 * E->tracer.sample_Red[sample];
pixmap->G[pp] = (int) 255.0 * E->tracer.sample_Green[sample];
pixmap->B[pp] = (int) 255.0 * E->tracer.sample_Blue[sample];
}
for(i=1;i<=height;i++) {
px = border;
py = border + i;
pp = px + (py-1) * mx;
pixmap->R[pp] = pixmap->G[pp] = pixmap->B[pp] = 0;
px = border + m;
py = border + i;
pp = px + (py-1) * mx;
pixmap->R[pp] = pixmap->G[pp] = pixmap->B[pp] = 0;
}
}
/* And now plot the sample point itself */
for(i=-2;i<=2;i++)
for(j=-2;j<=2;j++) {
px = border + m * (E->tracer.sample_x[sample] - xmin) / (xmax - xmin);
py = 2 * border + height + n * (E->tracer.sample_z[sample] - zmin) / (zmax - zmin);
pp = (px+i) + ((py+j)-1) * mx;
pixmap->R[pp] = (int) 255.0 * E->tracer.sample_Red[sample];
pixmap->G[pp] = (int) 255.0 * E->tracer.sample_Green[sample];
pixmap->B[pp] = (int) 255.0 * E->tracer.sample_Blue[sample];
}
}
free((void *) Node);
return;
}
void add_surf_graph_to_pixmap(
struct All_variables *E,
standard_precision *field,
struct ppm *pixmap,
struct colormap cmap,
int m,
int om,
int on,
int height,
int axes,
int aR,
int aG,
int aB,
int PPM_plot_number
)
{
int i,j;
int R,G,B;
int px,py,pp;
int dots;
float Op;
float maxf,minf,scale,scale10,scale11;
float f1;
void supply_color();
const int mx = pixmap->x;
const int my = pixmap->y;
const int hheight = height / 2;
/* First, recover the statistics for the data field */
if(1 || E->control.PPM_surf_auto[PPM_plot_number]) {
maxf=-1e32;
minf= 1e32;
for(i=1;i<=m;i++) {
if(field[i] > maxf)
maxf = field[i] ;
if(field[i] < minf)
minf = field[i];
}
scale = max(fabs(maxf),fabs(minf));
}
/* else */
if (!E->control.PPM_surf_auto[PPM_plot_number]) {
scale = max(fabs(E->control.PPM_surf_max[PPM_plot_number]),
fabs(E->control.PPM_surf_min[PPM_plot_number]));
}
if(scale == 0.0)
return;
scale10 = pow(10.0,floor(log10(scale*1.001)));
scale11 = pow(10.0, ceil(log10(scale*0.999)));
if (E->control.PPM_surf_auto[PPM_plot_number]) {
scale=scale11;
}
/* We'll plot to nearest power of ten */
for(i=1;i<=m;i++) {
f1=field[i];
if(! E->control.PPM_surf_auto[PPM_plot_number]) {
if(f1 < -scale)
f1 = -scale;
else
if(f1 > scale)
f1 = scale;
}
px = om + i;
py = on + hheight - (int)(hheight * f1 / scale) ;
if(py >= on + hheight)
for(j=on + hheight;j<=py;j++) {
pp = px + (j-1) * mx;
pixmap->B[pp] = 150;
pixmap->G[pp] = pixmap->R[pp] = 0;
}
else
for(j=py;j<=on + hheight;j++) {
pp = px + (j-1) * mx;
pixmap->R[pp] = 150;
pixmap->G[pp] = pixmap->B[pp] = 0;
}
}