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Plot the temperature Graph

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Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava 2013-05-08 17:46:28 -03:00 • committed by Dirk Hohndel
parent ce8d30b938
commit ef7ace9926
4 changed files with 70 additions and 60 deletions
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79
profile.c
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@ -201,6 +201,32 @@ void remember_event(const char *eventname)
evn_used++;
}
int setup_temperature_limits(struct graphics_context *gc, struct plot_info *pi)
{
int maxtime, mintemp, maxtemp, delta;
/* Get plot scaling limits */
maxtime = get_maxtime(pi);
mintemp = pi->mintemp;
maxtemp = pi->maxtemp;
gc->leftx = 0; gc->rightx = maxtime;
/* Show temperatures in roughly the lower third, but make sure the scale
is at least somewhat reasonable */
delta = maxtemp - mintemp;
if (delta < 3000) /* less than 3K in fluctuation */
delta = 3000;
gc->topy = maxtemp + delta*2;
if (PP_GRAPHS_ENABLED)
gc->bottomy = mintemp - delta * 2;
else
gc->bottomy = mintemp - delta / 3;
pi->endtempcoord = SCALEY(gc, pi->mintemp);
return maxtemp && maxtemp >= mintemp;
}
#if 0
static void render_depth_sample(struct graphics_context *gc, struct plot_data *entry, const text_render_options_t *tro)
{
@ -441,31 +467,7 @@ static void plot_pp_gas_profile(struct graphics_context *gc, struct plot_info *p
}
static int setup_temperature_limits(struct graphics_context *gc, struct plot_info *pi)
{
int maxtime, mintemp, maxtemp, delta;
/* Get plot scaling limits */
maxtime = get_maxtime(pi);
mintemp = pi->mintemp;
maxtemp = pi->maxtemp;
gc->leftx = 0; gc->rightx = maxtime;
/* Show temperatures in roughly the lower third, but make sure the scale
is at least somewhat reasonable */
delta = maxtemp - mintemp;
if (delta < 3000) /* less than 3K in fluctuation */
delta = 3000;
gc->topy = maxtemp + delta*2;
if (PP_GRAPHS_ENABLED)
gc->bottomy = mintemp - delta * 2;
else
gc->bottomy = mintemp - delta / 3;
pi->endtempcoord = SCALEY(gc, pi->mintemp);
return maxtemp && maxtemp >= mintemp;
}
static void plot_single_temp_text(struct graphics_context *gc, int sec, int mkelvin)
{
@ -515,35 +517,6 @@ static void plot_temperature_text(struct graphics_context *gc, struct plot_info
plot_single_temp_text(gc, sec, last_temperature);
}
static void plot_temperature_profile(struct graphics_context *gc, struct plot_info *pi)
{
int i;
cairo_t *cr = gc->cr;
int last = 0;
if (!setup_temperature_limits(gc, pi))
return;
cairo_set_line_width_scaled(gc->cr, 2);
set_source_rgba(gc, TEMP_PLOT);
for (i = 0; i < pi->nr; i++) {
struct plot_data *entry = pi->entry + i;
int mkelvin = entry->temperature;
int sec = entry->sec;
if (!mkelvin) {
if (!last)
continue;
mkelvin = last;
}
if (last)
line_to(gc, sec, mkelvin);
else
move_to(gc, sec, mkelvin);
last = mkelvin;
}
cairo_stroke(cr);
}
/* gets both the actual start and end pressure as well as the scaling factors */
static int get_cylinder_pressure_range(struct graphics_context *gc, struct plot_info *pi)
{