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Clean up and simplify depth plot

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Dirk wrote this before we have the 'plot_info' structure with the
cleaned-up dive info.  No need to maintain that separate array of depths
and seconds.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-09-20 17:17:30 -07:00
parent 76a732fe74
commit 9cfe9aa8cd
1 changed files with 24 additions and 41 deletions
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65
profile.c
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@ -254,9 +254,7 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi
{
int i;
cairo_t *cr = gc->cr;
int ends, sec, depth;
int *secs;
int *depths;
int sec, depth;
struct plot_data *entry;
int maxtime, maxdepth, marker;
@ -304,49 +302,34 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi
plot_minmax_profile(gc, pi);
}
entry = pi->entry;
set_source_rgba(gc, 1, 0.2, 0.2, 0.80);
secs = (int *) malloc(sizeof(int) * pi->nr);
depths = (int *) malloc(sizeof(int) * pi->nr);
secs[0] = entry->sec;
depths[0] = entry->val;
/* Do the depth profile for the neat fill */
gc->topy = 0; gc->bottomy = maxdepth;
set_source_rgba(gc, 1, 0.2, 0.2, 0.20);
entry = pi->entry;
move_to(gc, 0, 0);
for (i = 0; i < pi->nr; i++, entry++)
line_to(gc, entry->sec, entry->val);
cairo_close_path(gc->cr);
cairo_fill(gc->cr);
/* Now do it again for the velocity colors */
entry = pi->entry;
for (i = 1; i < pi->nr; i++) {
entry++;
sec = entry->sec;
if (sec <= maxtime || entry->val > 0) {
/* we want to draw the segments in different colors
* representing the vertical velocity, so we need to
* chop this into short segments */
rgb_t color = rgb[entry->velocity];
depth = entry->val;
set_source_rgb(gc, color.r, color.g, color.b);
move_to(gc, secs[i-1], depths[i-1]);
line_to(gc, sec, depth);
cairo_stroke(cr);
ends = i;
}
secs[i] = sec;
depths[i] = depth;
/* we want to draw the segments in different colors
* representing the vertical velocity, so we need to
* chop this into short segments */
rgb_t color = rgb[entry->velocity];
depth = entry->val;
set_source_rgb(gc, color.r, color.g, color.b);
move_to(gc, entry[-1].sec, entry[-1].val);
line_to(gc, sec, depth);
cairo_stroke(cr);
}
move_to(gc, secs[ends], depths[ends]);
gc->topy = 0; gc->bottomy = 1.0;
line_to(gc, secs[ends], 0);
line_to(gc, secs[0], 0);
cairo_close_path(cr);
set_source_rgba(gc, 1, 0.2, 0.2, 0.80);
cairo_stroke(cr);
/* now do it again for the neat fill */
gc->topy = 0; gc->bottomy = maxdepth;
set_source_rgba(gc, 1, 0.2, 0.2, 0.20);
move_to(gc, secs[0], depths[0]);
for (i = 1; i <= ends; i++) {
line_to(gc, secs[i],depths[i]);
}
gc->topy = 0; gc->bottomy = 1.0;
line_to(gc, secs[ends], 0);
line_to(gc, secs[0], 0);
cairo_close_path(gc->cr);
cairo_fill(gc->cr);
}
static int setup_temperature_limits(struct graphics_context *gc, struct plot_info *pi)