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Plotting temperature text.

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Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
This commit is contained in:
Tomaz Canabrava 2013-05-09 15:28:50 -03:00 • committed by Dirk Hohndel
parent 17c6db6a5b
commit c62e8e5baa
4 changed files with 59 additions and 52 deletions
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49
profile.c
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@ -193,10 +193,11 @@ void remember_event(const char *eventname)
evn_used++;
}
int setup_temperature_limits(struct graphics_context *gc, struct plot_info *pi)
int setup_temperature_limits(struct graphics_context *gc)
{
int maxtime, mintemp, maxtemp, delta;
struct plot_info *pi = &gc->pi;
/* Get plot scaling limits */
maxtime = get_maxtime(pi);
mintemp = pi->mintemp;
@ -461,53 +462,7 @@ static void plot_pp_gas_profile(struct graphics_context *gc, struct plot_info *p
static void plot_single_temp_text(struct graphics_context *gc, int sec, int mkelvin)
{
double deg;
const char *unit;
static const text_render_options_t tro = {TEMP_TEXT_SIZE, TEMP_TEXT, LEFT, TOP};
deg = get_temp_units(mkelvin, &unit);
plot_text(gc, &tro, sec, mkelvin, "%.2g%s", deg, unit);
}
static void plot_temperature_text(struct graphics_context *gc, struct plot_info *pi)
{
int i;
int last = -300, sec = 0;
int last_temperature = 0, last_printed_temp = 0;
if (!setup_temperature_limits(gc, pi))
return;
for (i = 0; i < pi->nr; i++) {
struct plot_data *entry = pi->entry+i;
int mkelvin = entry->temperature;
sec = entry->sec;
if (!mkelvin)
continue;
last_temperature = mkelvin;
/* don't print a temperature
* if it's been less than 5min and less than a 2K change OR
* if it's been less than 2min OR if the change from the
* last print is less than .4K (and therefore less than 1F */
if (((sec < last + 300) && (abs(mkelvin - last_printed_temp) < 2000)) ||
(sec < last + 120) ||
(abs(mkelvin - last_printed_temp) < 400))
continue;
last = sec;
plot_single_temp_text(gc,sec,mkelvin);
last_printed_temp = mkelvin;
}
/* it would be nice to print the end temperature, if it's
* different or if the last temperature print has been more
* than a quarter of the dive back */
if ((abs(last_temperature - last_printed_temp) > 500) ||
((double)last / (double)sec < 0.75))
plot_single_temp_text(gc, sec, last_temperature);
}
/* gets both the actual start and end pressure as well as the scaling factors */