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#include "Main.h"
#include <stdio.h>
#include <stdlib.h>
#include "Defines.h"
#include "Dimensions.h"
#include "Error.h"
#include "HpFile.h"
#include "Utilities.h"
/* own stuff */
#include "Scale.h"
/*
* Return the maximum combined height that all the sample
* curves will reach. This (absolute) figure can then be
* used to scale the samples automatically so that they
* fit on the page.
*/
floatish
MaxCombinedHeight(void)
{
intish i;
intish j;
floatish mx;
int bucket;
floatish value;
struct chunk* ch;
floatish *maxima;
maxima = (floatish*) xmalloc(nsamples * sizeof(floatish));
for (i = 0; i < nsamples; i++) {
maxima[ i ] = 0.0;
}
for (i = 0; i < nidents; i++) {
for (ch = identtable[i]->chk; ch; ch = ch->next) {
for (j = 0; j < ch->nd; j++) {
bucket = ch->d[j].bucket;
value = ch->d[j].value;
if (bucket >= nsamples)
Disaster("bucket out of range");
maxima[ bucket ] += value;
}
}
}
for (mx = maxima[ 0 ], i = 0; i < nsamples; i++) {
if (maxima[ i ] > mx) mx = maxima[ i ];
}
free(maxima);
return mx;
}
/*
* Scale the values from the samples so that they will fit on
* the page.
*/
extern floatish xrange;
extern floatish yrange;
void
Scale(void)
{
intish i;
intish j;
floatish sf;
struct chunk* ch;
if (yrange == 0.0) /* no samples */
return;
sf = graphheight / yrange;
for (i = 0; i < nidents; i++) {
for (ch = identtable[i]->chk; ch; ch = ch->next) {
for (j = 0; j < ch->nd; j++) {
ch->d[j].value = ch->d[j].value * sf;
}
}
}
}
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