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Be more consistent in our handling of rgb value tables

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Use rgb_t for the sac colors, create a new set_source_rgb_struct function
and use that for the velocity values (in the depth plot) as well.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2011-11-19 10:17:19 -05:00
parent b5abdd46f0
commit 4e876b3082
1 changed files with 34 additions and 23 deletions
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57
profile.c
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@ -48,7 +48,7 @@ struct plot_info {
/* convert velocity to colors */
typedef struct { double r, g, b; } rgb_t;
static const rgb_t rgb[] = {
static const rgb_t velocity_color[] = {
[STABLE] = {0.0, 0.4, 0.0},
[SLOW] = {0.4, 0.8, 0.0},
[MODERATE] = {0.8, 0.8, 0.0},
@ -89,6 +89,11 @@ static void set_source_rgba(struct graphics_context *gc, double r, double g, dou
cairo_set_source_rgba(gc->cr, r, g, b, a);
}
static void set_source_rgb_struct(struct graphics_context *gc, const rgb_t *rgb)
{
set_source_rgba(gc, rgb->r, rgb->g, rgb->b, 1);
}
void set_source_rgb(struct graphics_context *gc, double r, double g, double b)
{
set_source_rgba(gc, r, g, b, 1);
@ -476,9 +481,8 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi
/* 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->depth;
set_source_rgb(gc, color.r, color.g, color.b);
set_source_rgb_struct(gc, &velocity_color[entry->velocity]);
move_to(gc, entry[-1].sec, entry[-1].depth);
line_to(gc, sec, depth);
cairo_stroke(cr);
@ -595,29 +599,36 @@ static int get_cylinder_pressure_range(struct graphics_context *gc, struct plot_
return pi->maxpressure != 0;
}
#define SAC_COLORS 9
static const rgb_t sac_color[SAC_COLORS] = {
{ 0.0, 0.4, 0.2},
{ 0.2, 0.6, 0.2},
{ 0.4, 0.8, 0.2},
{ 0.6, 0.8, 0.2},
{ 0.8, 0.8, 0.2},
{ 0.8, 0.6, 0.2},
{ 0.8, 0.4, 0.2},
{ 0.9, 0.3, 0.2},
{ 1.0, 0.2, 0.2},
};
/* set the color for the pressure plot according to temporary sac rate
* as compared to avg_sac */
* as compared to avg_sac; the calculation simply maps the delta between
* sac and avg_sac to indexes 0 .. (SAC_COLORS - 1) with everything
* more than 6000 ml/min below avg_sac mapped to 0 */
static void set_sac_color(struct graphics_context *gc, int sac, int avg_sac)
{
int delta = sac - avg_sac;
if (delta < -6000)
set_source_rgb(gc, 0.0, 0.4, 0.2);
else if (delta < -4000)
set_source_rgb(gc, 0.2, 0.6, 0.2);
else if (delta < -2000)
set_source_rgb(gc, 0.4, 0.8, 0.2);
else if (delta < 0)
set_source_rgb(gc, 0.6, 0.8, 0.2);
else if (delta < 2000)
set_source_rgb(gc, 0.8, 0.8, 0.2);
else if (delta < 4000)
set_source_rgb(gc, 0.8, 0.6, 0.2);
else if (delta < 6000)
set_source_rgb(gc, 0.8, 0.4, 0.2);
else if (delta < 8000)
set_source_rgb(gc, 0.9, 0.3, 0.2);
else
set_source_rgb(gc, 1.0, 0.2, 0.2);
int sac_index = 0;
int delta = sac - avg_sac + 6000;
sac_index = delta / 2000;
if (sac_index < 0)
sac_index = 0;
if (sac_index > SAC_COLORS - 1)
sac_index = SAC_COLORS - 1;
set_source_rgb_struct(gc, &sac_color[sac_index]);
}
/* calculate the current SAC in ml/min and convert to int */