diff options
Diffstat (limited to 'profile.c')
| -rw-r--r-- | profile.c | 60 |
1 files changed, 37 insertions, 23 deletions
@@ -108,14 +108,43 @@ static int next_minmax(struct dive *dive, int index, int minmax) /* Scale to 0,0 -> maxx,maxy */ #define SCALE(x,y) (x)*maxx/scalex+topx,(y)*maxy/scaley+topy -static void plot_profile(struct dive *dive, cairo_t *cr, +static void plot_depth_text(struct dive *dive, cairo_t *cr, + double topx, double topy, double maxx, double maxy) +{ + double scalex, scaley; + int maxtime, maxdepth; + int i; + + /* Get plot scaling limits */ + maxtime = round_seconds_up(dive->duration.seconds); + maxdepth = round_feet_up(to_feet(dive->maxdepth)); + + scalex = maxtime; + scaley = maxdepth; + + cairo_set_font_size(cr, 14); + cairo_set_source_rgb(cr, 1, 0.2, 0.2); + i = 0; + while ((i = next_minmax(dive, i, 1)) != 0) { + struct sample *sample = dive->sample+i; + int sec = sample->time.seconds; + int depth = to_feet(sample->depth); + + plot_text(cr, SCALE(sec, depth), "%d ft", depth); + i = next_minmax(dive, i, 0); + if (!i) + break; + } +} + +static void plot_depth_profile(struct dive *dive, cairo_t *cr, double topx, double topy, double maxx, double maxy) { double scalex, scaley; int begins, sec, depth; int i, samples; struct sample *sample; - int maxtime, maxdepth, mindepth; + int maxtime, maxdepth; samples = dive->samples; if (!samples) @@ -171,24 +200,6 @@ static void plot_profile(struct dive *dive, cairo_t *cr, cairo_fill_preserve(cr); cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.80); cairo_stroke(cr); - - scalex = maxtime; - scaley = maxdepth; - - maxdepth = mindepth = 0; - maxtime = 0; - cairo_set_font_size(cr, 14); - cairo_set_source_rgb(cr, 1, 0.2, 0.2); - i = 0; - while ((i = next_minmax(dive, i, 1)) != 0) { - sample = dive->sample+i; - sec = sample->time.seconds; - depth = to_feet(sample->depth); - plot_text(cr, SCALE(sec, depth), "%d ft", depth); - i = next_minmax(dive, i, 0); - if (!i) - break; - } } static int get_cylinder_pressure_range(struct dive *dive, double *scalex, double *scaley) @@ -262,11 +273,14 @@ static void plot(cairo_t *cr, int w, int h, struct dive *dive) maxx = (w - 2*topx); maxy = (h - 2*topy); + /* Cylinder pressure plot */ + plot_cylinder_pressure(dive, cr, topx, topy, maxx, maxy); + /* Depth profile */ - plot_profile(dive, cr, topx, topy, maxx, maxy); + plot_depth_profile(dive, cr, topx, topy, maxx, maxy); - /* Cylinder pressure plot? */ - plot_cylinder_pressure(dive, cr, topx, topy, maxx, maxy); + /* Text on top of all graphs.. */ + plot_depth_text(dive, cr, topx, topy, maxx, maxy); /* Bounding box last */ scalex = scaley = 1.0; |