/* profile.c */
-/* creates all the necessary data for drawing the dive profile
+/* creates all the necessary data for drawing the dive profile
* uses cairo to draw it
*/
#include <stdio.h>
#include "color.h"
int selected_dive = 0;
-int *selectiontracker;
+char zoomed_plot = 0;
typedef enum { STABLE, SLOW, MODERATE, FAST, CRAZY } velocity_t;
* When showing dive profiles, we scale things to the
* current dive. However, we don't scale past less than
* 30 minutes or 90 ft, just so that small dives show
- * up as such.
- * we also need to add 180 seconds at the end so the min/max
+ * up as such unless zoom is enabled.
+ * We also need to add 180 seconds at the end so the min/max
* plots correctly
*/
static int get_maxtime(struct plot_info *pi)
{
int seconds = pi->maxtime;
- /* min 30 minutes, rounded up to 5 minutes, with at least 2.5 minutes to spare */
- return MAX(30*60, ROUND_UP(seconds+150, 60*5));
+ if (zoomed_plot) {
+ /* Rounded up to one minute, with at least 2.5 minutes to
+ * spare.
+ * For dive times shorter than 10 minutes, we use seconds/4 to
+ * calculate the space dynamically.
+ * This is seamless since 600/4 = 150.
+ */
+ if ( seconds < 600 )
+ return ROUND_UP(seconds+seconds/4, 60);
+ else
+ return ROUND_UP(seconds+150, 60);
+ } else {
+ /* min 30 minutes, rounded up to 5 minutes, with at least 2.5 minutes to spare */
+ return MAX(30*60, ROUND_UP(seconds+150, 60*5));
+ }
}
static int get_maxdepth(struct plot_info *pi)
{
unsigned mm = pi->maxdepth;
- /* Minimum 30m, rounded up to 10m, with at least 3m to spare */
- return MAX(30000, ROUND_UP(mm+3000, 10000));
+ if (zoomed_plot) {
+ /* Rounded up to 10m, with at least 3m to spare */
+ return ROUND_UP(mm+3000, 10000);
+ } else {
+ /* Minimum 30m, rounded up to 10m, with at least 3m to spare */
+ return MAX(30000, ROUND_UP(mm+3000, 10000));
+ }
}
typedef struct {
int sec, depth;
struct plot_data *entry;
int maxtime, maxdepth, marker;
- int increments[4] = { 5*60, 10*60, 15*60, 30*60 };
+ int increments[8] = { 10, 20, 30, 60, 5*60, 10*60, 15*60, 30*60 };
/* Get plot scaling limits */
maxtime = get_maxtime(pi);
maxdepth = get_maxdepth(pi);
- /* Time markers: at most every 5 min, but no more than 12 markers
- * and for convenience we do 5, 10, 15 or 30 min intervals.
+ /* Time markers: at most every 10 seconds, but no more than 12 markers.
+ * We start out with 10 seconds and increment up to 30 minutes,
+ * depending on the dive time.
* This allows for 6h dives - enough (I hope) for even the craziest
* divers - but just in case, for those 8h depth-record-breaking dives,
* we double the interval if this still doesn't get us to 12 or fewer
* time markers */
i = 0;
- while (maxtime / increments[i] > 12 && i < 4)
+ while (maxtime / increments[i] > 12 && i < 8)
i++;
incr = increments[i];
while (maxtime / incr > 12)
}
cairo_stroke(cr);
- /* now the text on every second time marker */
+ /* now the text on the time markers */
text_render_options_t tro = {10, TIME_TEXT, CENTER, TOP};
- for (i = incr; i < maxtime; i += 2 * incr)
- plot_text(gc, &tro, i, 1, "%d", i/60);
-
+ if (maxtime < 600) {
+ /* Be a bit more verbose with shorter dives */
+ for (i = incr; i < maxtime; i += incr)
+ plot_text(gc, &tro, i, 1, "%02d:%02d", i/60, i%60);
+ } else {
+ /* Only render the time on every second marker for normal dives */
+ for (i = incr; i < maxtime; i += 2 * incr)
+ plot_text(gc, &tro, i, 1, "%d", i/60);
+ }
/* Depth markers: every 30 ft or 10 m*/
gc->leftx = 0; gc->rightx = 1.0;
gc->topy = 0; gc->bottomy = maxdepth;
else if (speed < -25) /* -5ft/min */
v = SLOW;
else if (speed < 25) /* very hard to find data, but it appears that the recommendations
- for descent are usually about 2x ascent rate; still, we want
+ for descent are usually about 2x ascent rate; still, we want
stable to mean stable */
v = STABLE;
else if (speed < 152) /* between 5 and 30ft/min is considered slow */
int past = -2;
while (i+past > 0 && entry[0].sec - entry[past].sec < 15)
past--;
- entry->velocity = velocity((entry[0].depth - entry[past].depth) /
+ entry->velocity = velocity((entry[0].depth - entry[past].depth) /
(entry[0].sec - entry[past].sec));
}
} else
struct plot_data *entry = pi->entry +i;
analyze_plot_info_minmax(entry, pi->entry, pi->entry+nr);
}
-
+
return pi;
}
/* there may be multiple segments - so
* let's assemble the length */
nlist = list;
- pt = list->pressure_time;
- while (!nlist->end) {
- nlist = nlist->next;
- if (!nlist) {
- /* oops - we have no end pressure,
- * so this means this is a tank without
- * gas consumption information */
- break;
+ if (list) {
+ pt = list->pressure_time;
+ while (!nlist->end) {
+ nlist = nlist->next;
+ if (!nlist) {
+ /* oops - we have no end pressure,
+ * so this means this is a tank without
+ * gas consumption information */
+ break;
+ }
+ pt += nlist->pressure_time;
}
- pt += nlist->pressure_time;
}
if (!nlist) {
/* just continue without calculating
int duration = dive->duration.seconds;
int maxdepth = dive->maxdepth.mm;
int asc_desc_time = dive->maxdepth.mm*60/9000;
+ if (asc_desc_time * 2 >= duration)
+ asc_desc_time = duration / 2;
sample = fake;
fake[1].time.seconds = asc_desc_time;
fake[1].depth.mm = maxdepth;
projects / ext / subsurface.git / blobdiff