/* 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 "dive.h"
#include "display.h"
#include "divelist.h"
+#include "color.h"
int selected_dive = 0;
+char zoomed_plot = 0;
typedef enum { STABLE, SLOW, MODERATE, FAST, CRAZY } velocity_t;
+
/* Plot info with smoothing, velocity indication
* and one-, two- and three-minute minimums and maximums */
struct plot_info {
int nr;
int maxtime;
int meandepth, maxdepth;
- int minpressure, maxpressure;
+ int maxpressure;
int mintemp, maxtemp;
struct plot_data {
+ unsigned int same_cylinder:1;
+ unsigned int cylinderindex;
int sec;
- int pressure, temperature;
+ /* pressure[0] is sensor pressure
+ * pressure[1] is interpolated pressure */
+ int pressure[2];
+ int temperature;
/* Depth info */
- int val;
+ int depth;
int smoothed;
velocity_t velocity;
struct plot_data *min[3];
} entry[];
};
-/* convert velocity to colors */
-typedef struct { double r, g, b; } rgb_t;
-static const rgb_t rgb[] = {
- [STABLE] = {0.0, 0.4, 0.0},
- [SLOW] = {0.4, 0.8, 0.0},
- [MODERATE] = {0.8, 0.8, 0.0},
- [FAST] = {0.8, 0.5, 0.0},
- [CRAZY] = {1.0, 0.0, 0.0},
+#define SENSOR_PR 0
+#define INTERPOLATED_PR 1
+#define SENSOR_PRESSURE(_entry) (_entry)->pressure[SENSOR_PR]
+#define INTERPOLATED_PRESSURE(_entry) (_entry)->pressure[INTERPOLATED_PR]
+#define GET_PRESSURE(_entry) (SENSOR_PRESSURE(_entry) ? : INTERPOLATED_PRESSURE(_entry))
+
+#define SAC_COLORS_START_IDX SAC_1
+#define SAC_COLORS 9
+#define VELOCITY_COLORS_START_IDX VELO_STABLE
+#define VELOCITY_COLORS 5
+
+typedef enum {
+ /* SAC colors. Order is important, the SAC_COLORS_START_IDX define above. */
+ SAC_1, SAC_2, SAC_3, SAC_4, SAC_5, SAC_6, SAC_7, SAC_8, SAC_9,
+
+ /* Velocity colors. Order is still important, ref VELOCITY_COLORS_START_IDX. */
+ VELO_STABLE, VELO_SLOW, VELO_MODERATE, VELO_FAST, VELO_CRAZY,
+
+ /* Other colors */
+ TEXT_BACKGROUND, ALERT_BG, ALERT_FG, EVENTS, SAMPLE_DEEP, SAMPLE_SHALLOW,
+ SMOOTHED, MINUTE, TIME_GRID, TIME_TEXT, DEPTH_GRID, MEAN_DEPTH, DEPTH_TOP,
+ DEPTH_BOTTOM, TEMP_TEXT, TEMP_PLOT, SAC_DEFAULT, BOUNDING_BOX, PRESSURE_TEXT, BACKGROUND
+} color_indice_t;
+
+typedef struct {
+ /* media[0] is screen, and media[1] is printer */
+ struct rgba {
+ double r,g,b,a;
+ } media[2];
+} color_t;
+
+/* [color indice] = {{screen color, printer color}} */
+static const color_t profile_color[] = {
+ [SAC_1] = {{FUNGREEN1, BLACK1_LOW_TRANS}},
+ [SAC_2] = {{APPLE1, BLACK1_LOW_TRANS}},
+ [SAC_3] = {{ATLANTIS1, BLACK1_LOW_TRANS}},
+ [SAC_4] = {{ATLANTIS2, BLACK1_LOW_TRANS}},
+ [SAC_5] = {{EARLSGREEN1, BLACK1_LOW_TRANS}},
+ [SAC_6] = {{HOKEYPOKEY1, BLACK1_LOW_TRANS}},
+ [SAC_7] = {{TUSCANY1, BLACK1_LOW_TRANS}},
+ [SAC_8] = {{CINNABAR1, BLACK1_LOW_TRANS}},
+ [SAC_9] = {{REDORANGE1, BLACK1_LOW_TRANS}},
+
+ [VELO_STABLE] = {{CAMARONE1, BLACK1_LOW_TRANS}},
+ [VELO_SLOW] = {{LIMENADE1, BLACK1_LOW_TRANS}},
+ [VELO_MODERATE] = {{RIOGRANDE1, BLACK1_LOW_TRANS}},
+ [VELO_FAST] = {{PIRATEGOLD1, BLACK1_LOW_TRANS}},
+ [VELO_CRAZY] = {{RED1, BLACK1_LOW_TRANS}},
+
+ [TEXT_BACKGROUND] = {{CONCRETE1_LOWER_TRANS, WHITE1}},
+ [ALERT_BG] = {{BROOM1_LOWER_TRANS, BLACK1_LOW_TRANS}},
+ [ALERT_FG] = {{BLACK1_LOW_TRANS, BLACK1_LOW_TRANS}},
+ [EVENTS] = {{REDORANGE1, BLACK1_LOW_TRANS}},
+ [SAMPLE_DEEP] = {{PERSIANRED1, BLACK1_LOW_TRANS}},
+ [SAMPLE_SHALLOW] = {{PERSIANRED1, BLACK1_LOW_TRANS}},
+ [SMOOTHED] = {{REDORANGE1_HIGH_TRANS, BLACK1_LOW_TRANS}},
+ [MINUTE] = {{MEDIUMREDVIOLET1_HIGHER_TRANS, BLACK1_LOW_TRANS}},
+ [TIME_GRID] = {{WHITE1, TUNDORA1_MED_TRANS}},
+ [TIME_TEXT] = {{FORESTGREEN1, BLACK1_LOW_TRANS}},
+ [DEPTH_GRID] = {{WHITE1, TUNDORA1_MED_TRANS}},
+ [MEAN_DEPTH] = {{REDORANGE1_MED_TRANS, BLACK1_LOW_TRANS}},
+ [DEPTH_BOTTOM] = {{GOVERNORBAY1_MED_TRANS, TUNDORA1_MED_TRANS}},
+ [DEPTH_TOP] = {{MERCURY1_MED_TRANS, WHITE1_MED_TRANS}},
+ [TEMP_TEXT] = {{GOVERNORBAY2, BLACK1_LOW_TRANS}},
+ [TEMP_PLOT] = {{ROYALBLUE2_LOW_TRANS, BLACK1_LOW_TRANS}},
+ [SAC_DEFAULT] = {{WHITE1, BLACK1_LOW_TRANS}},
+ [BOUNDING_BOX] = {{WHITE1, BLACK1_LOW_TRANS}},
+ [PRESSURE_TEXT] = {{KILLARNEY1, BLACK1_LOW_TRANS}},
+ [BACKGROUND] = {{SPRINGWOOD1, BLACK1_LOW_TRANS}},
};
#define plot_info_size(nr) (sizeof(struct plot_info) + (nr)*sizeof(struct plot_data))
cairo_line_to(gc->cr, SCALE(gc, x, y));
}
-static void set_source_rgba(struct graphics_context *gc, double r, double g, double b, double a)
+static void set_source_rgba(struct graphics_context *gc, color_indice_t c)
{
- /*
- * For printers, we still honor 'a', but ignore colors
- * for now. Black is white and white is black
- */
- if (gc->printer) {
- double sum = r+g+b;
- if (sum > 0.8)
- r = g = b = 0;
- else
- r = g = b = 1;
- }
+ const color_t *col = &profile_color[c];
+ struct rgba rgb = col->media[gc->printer];
+ double r = rgb.r;
+ double g = rgb.g;
+ double b = rgb.b;
+ double a = rgb.a;
+
cairo_set_source_rgba(gc->cr, r, g, b, a);
}
-void set_source_rgb(struct graphics_context *gc, double r, double g, double b)
+void init_profile_background(struct graphics_context *gc)
+{
+ set_source_rgba(gc, BACKGROUND);
+}
+
+void pattern_add_color_stop_rgba(struct graphics_context *gc, cairo_pattern_t *pat, double o, color_indice_t c)
{
- set_source_rgba(gc, r, g, b, 1);
+ const color_t *col = &profile_color[c];
+ struct rgba rgb = col->media[gc->printer];
+ cairo_pattern_add_color_stop_rgba(pat, o, rgb.r, rgb.g, rgb.b, rgb.a);
}
#define ROUND_UP(x,y) ((((x)+(y)-1)/(y))*(y))
+/* debugging tool - not normally used */
+static void dump_pi (struct plot_info *pi)
+{
+ int i;
+
+ printf("pi:{nr:%d maxtime:%d meandepth:%d maxdepth:%d \n"
+ " maxpressure:%d mintemp:%d maxtemp:%d\n",
+ pi->nr, pi->maxtime, pi->meandepth, pi->maxdepth,
+ pi->maxpressure, pi->mintemp, pi->maxtemp);
+ for (i = 0; i < pi->nr; i++)
+ printf(" entry[%d]:{same_cylinder:%d cylinderindex:%d sec:%d pressure:{%d,%d}\n"
+ " time:%d:%02d temperature:%d depth:%d smoothed:%d}\n",
+ i, pi->entry[i].same_cylinder, pi->entry[i].cylinderindex, pi->entry[i].sec,
+ pi->entry[i].pressure[0], pi->entry[i].pressure[1],
+ pi->entry[i].sec / 60, pi->entry[i].sec % 60,
+ pi->entry[i].temperature, pi->entry[i].depth, pi->entry[i].smoothed);
+ printf(" }\n");
+}
+
/*
* 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 size;
- double r,g,b;
+ color_indice_t color;
double hpos, vpos;
} text_render_options_t;
cairo_rel_move_to(cr, dx, dy);
cairo_text_path(cr, buffer);
- set_source_rgb(gc, 0, 0, 0);
+ set_source_rgba(gc, TEXT_BACKGROUND);
cairo_stroke(cr);
move_to(gc, x, y);
cairo_rel_move_to(cr, dx, dy);
- set_source_rgb(gc, tro->r, tro->g, tro->b);
+ set_source_rgba(gc, tro->color);
cairo_show_text(cr, buffer);
}
+struct ev_select {
+ char *ev_name;
+ gboolean plot_ev;
+};
+static struct ev_select *ev_namelist;
+static int evn_allocated;
+static int evn_used;
+
+void evn_foreach(void (*callback)(const char *, int *, void *), void *data)
+{
+ int i;
+
+ for (i = 0; i < evn_used; i++) {
+ callback(ev_namelist[i].ev_name, &ev_namelist[i].plot_ev, data);
+ }
+}
+
+void remember_event(const char *eventname)
+{
+ int i=0, len;
+
+ if (!eventname || (len = strlen(eventname)) == 0)
+ return;
+ while (i < evn_used) {
+ if (!strncmp(eventname,ev_namelist[i].ev_name,len))
+ return;
+ i++;
+ }
+ if (evn_used == evn_allocated) {
+ evn_allocated += 10;
+ ev_namelist = realloc(ev_namelist, evn_allocated * sizeof(struct ev_select));
+ if (! ev_namelist)
+ /* we are screwed, but let's just bail out */
+ return;
+ }
+ ev_namelist[evn_used].ev_name = strdup(eventname);
+ ev_namelist[evn_used].plot_ev = TRUE;
+ evn_used++;
+}
+
+static void plot_one_event(struct graphics_context *gc, struct plot_info *pi, struct event *event, const text_render_options_t *tro)
+{
+ int i, depth = 0;
+ int x,y;
+
+ /* is plotting this event disabled? */
+ if (event->name) {
+ for (i = 0; i < evn_used; i++) {
+ if (! strcmp(event->name, ev_namelist[i].ev_name)) {
+ if (ev_namelist[i].plot_ev)
+ break;
+ else
+ return;
+ }
+ }
+ }
+ for (i = 0; i < pi->nr; i++) {
+ struct plot_data *data = pi->entry + i;
+ if (event->time.seconds < data->sec)
+ break;
+ depth = data->depth;
+ }
+ /* draw a little tirangular marker and attach tooltip */
+ x = SCALEX(gc, event->time.seconds);
+ y = SCALEY(gc, depth);
+ set_source_rgba(gc, ALERT_BG);
+ cairo_move_to(gc->cr, x-15, y+6);
+ cairo_line_to(gc->cr, x-3 , y+6);
+ cairo_line_to(gc->cr, x-9, y-6);
+ cairo_line_to(gc->cr, x-15, y+6);
+ cairo_stroke_preserve(gc->cr);
+ cairo_fill(gc->cr);
+ set_source_rgba(gc, ALERT_FG);
+ cairo_move_to(gc->cr, x-9, y-3);
+ cairo_line_to(gc->cr, x-9, y+1);
+ cairo_move_to(gc->cr, x-9, y+4);
+ cairo_line_to(gc->cr, x-9, y+4);
+ cairo_stroke(gc->cr);
+ attach_tooltip(x-15, y-6, 12, 12, event->name);
+}
+
+static void plot_events(struct graphics_context *gc, struct plot_info *pi, struct dive *dive)
+{
+ static const text_render_options_t tro = {14, EVENTS, CENTER, TOP};
+ struct event *event = dive->events;
+
+ if (gc->printer)
+ return;
+
+ while (event) {
+ plot_one_event(gc, pi, event, &tro);
+ event = event->next;
+ }
+}
+
static void render_depth_sample(struct graphics_context *gc, struct plot_data *entry, const text_render_options_t *tro)
{
- int sec = entry->sec;
- depth_t depth = { entry->val };
- const char *fmt;
+ int sec = entry->sec, decimals;
double d;
- switch (output_units.length) {
- case METERS:
- d = depth.mm / 1000.0;
- fmt = "%.1f";
- break;
- case FEET:
- d = to_feet(depth);
- fmt = "%.0f";
- break;
- }
- plot_text(gc, tro, sec, depth.mm, fmt, d);
+ d = get_depth_units(entry->depth, &decimals, NULL);
+
+ plot_text(gc, tro, sec, entry->depth, "%.*f", decimals, d);
}
static void plot_text_samples(struct graphics_context *gc, struct plot_info *pi)
{
- static const text_render_options_t deep = {14, 1.0, 0.2, 0.2, CENTER, TOP};
- static const text_render_options_t shallow = {14, 1.0, 0.2, 0.2, CENTER, BOTTOM};
+ static const text_render_options_t deep = {14, SAMPLE_DEEP, CENTER, TOP};
+ static const text_render_options_t shallow = {14, SAMPLE_SHALLOW, CENTER, BOTTOM};
int i;
+ int last = -1;
for (i = 0; i < pi->nr; i++) {
struct plot_data *entry = pi->entry + i;
- if (entry->val < 2000)
+ if (entry->depth < 2000)
continue;
- if (entry == entry->max[2])
+ if ((entry == entry->max[2]) && entry->depth != last) {
render_depth_sample(gc, entry, &deep);
+ last = entry->depth;
+ }
- if (entry == entry->min[2])
+ if ((entry == entry->min[2]) && entry->depth != last) {
render_depth_sample(gc, entry, &shallow);
+ last = entry->depth;
+ }
+
+ if (entry->depth != last)
+ last = -1;
}
}
int i;
struct plot_data *entry = pi->entry;
- set_source_rgba(gc, 1, 0.2, 0.2, 0.20);
+ set_source_rgba(gc, SMOOTHED);
move_to(gc, entry->sec, entry->smoothed);
for (i = 1; i < pi->nr; i++) {
entry++;
}
static void plot_minmax_profile_minute(struct graphics_context *gc, struct plot_info *pi,
- int index, double a)
+ int index)
{
int i;
struct plot_data *entry = pi->entry;
- set_source_rgba(gc, 1, 0.2, 1, a);
- move_to(gc, entry->sec, entry->min[index]->val);
+ set_source_rgba(gc, MINUTE);
+ move_to(gc, entry->sec, entry->min[index]->depth);
for (i = 1; i < pi->nr; i++) {
entry++;
- line_to(gc, entry->sec, entry->min[index]->val);
+ line_to(gc, entry->sec, entry->min[index]->depth);
}
for (i = 1; i < pi->nr; i++) {
- line_to(gc, entry->sec, entry->max[index]->val);
+ line_to(gc, entry->sec, entry->max[index]->depth);
entry--;
}
cairo_close_path(gc->cr);
{
if (gc->printer)
return;
- plot_minmax_profile_minute(gc, pi, 2, 0.1);
- plot_minmax_profile_minute(gc, pi, 1, 0.1);
- plot_minmax_profile_minute(gc, pi, 0, 0.1);
+ plot_minmax_profile_minute(gc, pi, 2);
+ plot_minmax_profile_minute(gc, pi, 1);
+ plot_minmax_profile_minute(gc, pi, 0);
}
static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi)
{
- int i;
+ int i, incr;
cairo_t *cr = gc->cr;
int sec, depth;
struct plot_data *entry;
int maxtime, maxdepth, marker;
+ 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: every 5 min */
+ /* 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 < 8)
+ i++;
+ incr = increments[i];
+ while (maxtime / incr > 12)
+ incr *= 2;
+
gc->leftx = 0; gc->rightx = maxtime;
gc->topy = 0; gc->bottomy = 1.0;
- for (i = 5*60; i < maxtime; i += 5*60) {
+ set_source_rgba(gc, TIME_GRID);
+ cairo_set_line_width(gc->cr, 2);
+
+ for (i = incr; i < maxtime; i += incr) {
move_to(gc, i, 0);
line_to(gc, i, 1);
}
+ cairo_stroke(cr);
+ /* now the text on the time markers */
+ text_render_options_t tro = {10, TIME_TEXT, CENTER, TOP};
+ 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;
case FEET: marker = 9144; break; /* 30 ft */
}
- set_source_rgba(gc, 1, 1, 1, 0.5);
+ set_source_rgba(gc, DEPTH_GRID);
for (i = marker; i < maxdepth; i += marker) {
move_to(gc, 0, i);
line_to(gc, 1, i);
cairo_stroke(cr);
/* Show mean depth */
- set_source_rgba(gc, 1, 0.2, 0.2, 0.40);
- move_to(gc, 0, pi->meandepth);
- line_to(gc, 1, pi->meandepth);
- cairo_stroke(cr);
+ if (! gc->printer) {
+ set_source_rgba(gc, MEAN_DEPTH);
+ move_to(gc, 0, pi->meandepth);
+ line_to(gc, 1, pi->meandepth);
+ cairo_stroke(cr);
+ }
gc->leftx = 0; gc->rightx = maxtime;
plot_minmax_profile(gc, pi);
}
- set_source_rgba(gc, 1, 0.2, 0.2, 0.80);
-
/* 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);
+
+ cairo_pattern_t *pat;
+ pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, 256.0);
+ pattern_add_color_stop_rgba (gc, pat, 1, DEPTH_BOTTOM);
+ pattern_add_color_stop_rgba (gc, pat, 0, DEPTH_TOP);
+
+ cairo_set_source(gc->cr, pat);
+ cairo_pattern_destroy(pat);
+ cairo_set_line_width(gc->cr, 2);
entry = pi->entry;
move_to(gc, 0, 0);
for (i = 0; i < pi->nr; i++, entry++)
- line_to(gc, entry->sec, entry->val);
+ line_to(gc, entry->sec, entry->depth);
cairo_close_path(gc->cr);
- if (gc->printer) {
- set_source_rgba(gc, 1, 1, 1, 0.2);
- cairo_fill_preserve(cr);
- set_source_rgb(gc, 1, 1, 1);
- cairo_stroke(cr);
- return;
- }
+
cairo_fill(gc->cr);
/* Now do it again for the velocity colors */
/* 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);
+ depth = entry->depth;
+ set_source_rgba(gc, VELOCITY_COLORS_START_IDX + entry->velocity);
+ move_to(gc, entry[-1].sec, entry[-1].depth);
line_to(gc, sec, depth);
cairo_stroke(cr);
}
static void plot_single_temp_text(struct graphics_context *gc, int sec, int mkelvin)
{
- int deg;
+ double deg;
const char *unit;
- static const text_render_options_t tro = {12, 0.2, 0.2, 1.0, LEFT, TOP};
- temperature_t temperature = { mkelvin };
+ static const text_render_options_t tro = {12, TEMP_TEXT, LEFT, TOP};
- if (output_units.temperature == FAHRENHEIT) {
- deg = to_F(temperature);
- unit = UTF8_DEGREE "F";
- } else {
- deg = to_C(temperature);
- unit = UTF8_DEGREE "C";
- }
- plot_text(gc, &tro, sec, temperature.mkelvin, "%d%s", deg, unit);
+ deg = get_temp_units(mkelvin, &unit);
+
+ plot_text(gc, &tro, sec, mkelvin, "%d%s", (int)(deg + 0.5), unit);
}
static void plot_temperature_text(struct graphics_context *gc, struct plot_info *pi)
{
int i;
- int last = 0, sec = 0;
+ int last = -300, sec = 0;
int last_temperature = 0, last_printed_temp = 0;
if (!setup_temperature_limits(gc, pi))
continue;
last_temperature = mkelvin;
sec = entry->sec;
- if (sec < last + 300)
+ /* don't print a temperature
+ * if it's been less than 5min and less than a 2K change OR
+ * if it's been less than 2min OR if the change from the
+ * last print is less than .4K (and therefore less than 1F */
+ if (((sec < last + 300) && (abs(mkelvin - last_printed_temp) < 2000)) ||
+ (sec < last + 120) ||
+ (abs(mkelvin - last_printed_temp) < 400))
continue;
last = sec;
plot_single_temp_text(gc,sec,mkelvin);
last_printed_temp = mkelvin;
}
- /* it would be nice to print the end temperature, if it's different */
- if (abs(last_temperature - last_printed_temp) > 500)
+ /* it would be nice to print the end temperature, if it's
+ * different or if the last temperature print has been more
+ * than a quarter of the dive back */
+ if ((abs(last_temperature - last_printed_temp) > 500) ||
+ ((double)last / (double)sec < 0.75))
plot_single_temp_text(gc, sec, last_temperature);
}
if (!setup_temperature_limits(gc, pi))
return;
- set_source_rgba(gc, 0.2, 0.2, 1.0, 0.8);
+ cairo_set_line_width(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;
return pi->maxpressure != 0;
}
-static void plot_cylinder_pressure(struct graphics_context *gc, struct plot_info *pi)
+/* set the color for the pressure plot according to temporary sac rate
+ * 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 sac_index = 0;
+ int delta = sac - avg_sac + 7000;
+
+ if (!gc->printer) {
+ sac_index = delta / 2000;
+ if (sac_index < 0)
+ sac_index = 0;
+ if (sac_index > SAC_COLORS - 1)
+ sac_index = SAC_COLORS - 1;
+ set_source_rgba(gc, SAC_COLORS_START_IDX + sac_index);
+ } else {
+ set_source_rgba(gc, SAC_DEFAULT);
+ }
+}
+
+/* calculate the current SAC in ml/min and convert to int */
+#define GET_LOCAL_SAC(_entry1, _entry2, _dive) (int) \
+ ((GET_PRESSURE((_entry1)) - GET_PRESSURE((_entry2))) * \
+ (_dive)->cylinder[(_entry1)->cylinderindex].type.size.mliter / \
+ (((_entry2)->sec - (_entry1)->sec) / 60.0) / \
+ (1 + ((_entry1)->depth + (_entry2)->depth) / 20000.0) / \
+ 1000.0)
+
+#define SAC_WINDOW 45 /* sliding window in seconds for current SAC calculation */
+
+static void plot_cylinder_pressure(struct graphics_context *gc, struct plot_info *pi,
+ struct dive *dive)
{
int i;
+ int last = -1;
+ int lift_pen = FALSE;
+ int first_plot = TRUE;
+ int sac = 0;
+ struct plot_data *last_entry = NULL;
if (!get_cylinder_pressure_range(gc, pi))
return;
- set_source_rgba(gc, 0.2, 1.0, 0.2, 0.80);
+ cairo_set_line_width(gc->cr, 2);
- move_to(gc, 0, pi->maxpressure);
- for (i = 1; i < pi->nr; i++) {
+ for (i = 0; i < pi->nr; i++) {
int mbar;
struct plot_data *entry = pi->entry + i;
- mbar = entry->pressure;
- if (!mbar)
+ mbar = GET_PRESSURE(entry);
+ if (!entry->same_cylinder) {
+ lift_pen = TRUE;
+ last_entry = NULL;
+ }
+ if (!mbar) {
+ lift_pen = TRUE;
continue;
- line_to(gc, entry->sec, mbar);
+ }
+ if (!last_entry) {
+ last = i;
+ last_entry = entry;
+ sac = GET_LOCAL_SAC(entry, pi->entry + i + 1, dive);
+ } else {
+ int j;
+ sac = 0;
+ for (j = last; j < i; j++)
+ sac += GET_LOCAL_SAC(pi->entry + j, pi->entry + j + 1, dive);
+ sac /= (i - last);
+ if (entry->sec - last_entry->sec >= SAC_WINDOW) {
+ last++;
+ last_entry = pi->entry + last;
+ }
+ }
+ set_sac_color(gc, sac, dive->sac);
+ if (lift_pen) {
+ if (!first_plot && entry->same_cylinder) {
+ /* if we have a previous event from the same tank,
+ * draw at least a short line */
+ int prev_pr;
+ prev_pr = GET_PRESSURE(entry - 1);
+ move_to(gc, (entry-1)->sec, prev_pr);
+ line_to(gc, entry->sec, mbar);
+ } else {
+ first_plot = FALSE;
+ move_to(gc, entry->sec, mbar);
+ }
+ lift_pen = FALSE;
+ } else {
+ line_to(gc, entry->sec, mbar);
+ }
+ cairo_stroke(gc->cr);
+ move_to(gc, entry->sec, mbar);
}
- line_to(gc, pi->maxtime, pi->minpressure);
- cairo_stroke(gc->cr);
}
-static int mbar_to_PSI(int mbar)
+static void plot_pressure_value(struct graphics_context *gc, int mbar, int sec,
+ int xalign, int yalign)
{
- pressure_t p = {mbar};
- return to_PSI(p);
+ int pressure;
+ const char *unit;
+
+ pressure = get_pressure_units(mbar, &unit);
+ text_render_options_t tro = {10, PRESSURE_TEXT, xalign, yalign};
+ plot_text(gc, &tro, sec, mbar, "%d %s", pressure, unit);
}
static void plot_cylinder_pressure_text(struct graphics_context *gc, struct plot_info *pi)
{
- if (get_cylinder_pressure_range(gc, pi)) {
- int start, end;
- const char *unit = "bar";
+ int i;
+ int mbar, cyl;
+ int seen_cyl[MAX_CYLINDERS] = { FALSE, };
+ int last_pressure[MAX_CYLINDERS] = { 0, };
+ int last_time[MAX_CYLINDERS] = { 0, };
+ struct plot_data *entry;
- switch (output_units.pressure) {
- case PASCAL:
- start = pi->maxpressure * 100;
- end = pi->minpressure * 100;
- unit = "pascal";
- break;
- case BAR:
- start = (pi->maxpressure + 500) / 1000;
- end = (pi->minpressure + 500) / 1000;
- unit = "bar";
- break;
- case PSI:
- start = mbar_to_PSI(pi->maxpressure);
- end = mbar_to_PSI(pi->minpressure);
- unit = "psi";
- break;
- }
+ if (!get_cylinder_pressure_range(gc, pi))
+ return;
- text_render_options_t tro = {10, 0.2, 1.0, 0.2, LEFT, TOP};
- plot_text(gc, &tro, 0, pi->maxpressure, "%d %s", start, unit);
- plot_text(gc, &tro, pi->maxtime, pi->minpressure,
- "%d %s", end, unit);
+ /* only loop over the actual events from the dive computer
+ * plus the second synthetic event at the start (to make sure
+ * we get "time=0" right)
+ * sadly with a recent change that first entry may no longer
+ * have any pressure reading - in that case just grab the
+ * pressure from the second entry */
+ if (GET_PRESSURE(pi->entry + 1) == 0 && GET_PRESSURE(pi->entry + 2) !=0)
+ INTERPOLATED_PRESSURE(pi->entry + 1) = GET_PRESSURE(pi->entry + 2);
+ for (i = 1; i < pi->nr; i++) {
+ entry = pi->entry + i;
+
+ if (!entry->same_cylinder) {
+ cyl = entry->cylinderindex;
+ if (!seen_cyl[cyl]) {
+ mbar = GET_PRESSURE(entry);
+ plot_pressure_value(gc, mbar, entry->sec, LEFT, BOTTOM);
+ seen_cyl[cyl] = TRUE;
+ }
+ if (i > 2) {
+ /* remember the last pressure and time of
+ * the previous cylinder */
+ cyl = (entry - 1)->cylinderindex;
+ last_pressure[cyl] = GET_PRESSURE(entry - 1);
+ last_time[cyl] = (entry - 1)->sec;
+ }
+ }
+ }
+ cyl = entry->cylinderindex;
+ if (GET_PRESSURE(entry))
+ last_pressure[cyl] = GET_PRESSURE(entry);
+ last_time[cyl] = entry->sec;
+
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
+ if (last_time[cyl]) {
+ plot_pressure_value(gc, last_pressure[cyl], last_time[cyl], CENTER, TOP);
+ }
}
}
/* Then go forward until we hit an entry past the time */
min = max = p;
- avg = p->val;
+ avg = p->depth;
nr = 1;
while (++p < last) {
- int val = p->val;
+ int depth = p->depth;
if (p->sec > time + seconds)
break;
- avg += val;
+ avg += depth;
nr ++;
- if (val < min->val)
+ if (depth < min->depth)
min = p;
- if (val > max->val)
+ if (depth > max->depth)
max = p;
}
entry->min[index] = min;
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 */
/* Do pressure min/max based on the non-surface data */
for (i = 0; i < nr; i++) {
struct plot_data *entry = pi->entry+i;
- int pressure = entry->pressure;
+ int pressure = GET_PRESSURE(entry);
int temperature = entry->temperature;
if (pressure) {
- if (!pi->minpressure || pressure < pi->minpressure)
- pi->minpressure = pressure;
if (pressure > pi->maxpressure)
pi->maxpressure = pressure;
}
}
/* Smoothing function: 5-point triangular smooth */
- for (i = 2; i < nr-1; i++) {
+ for (i = 2; i < nr; i++) {
struct plot_data *entry = pi->entry+i;
- int val;
+ int depth;
if (i < nr-2) {
- val = entry[-2].val + 2*entry[-1].val + 3*entry[0].val + 2*entry[1].val + entry[2].val;
- entry->smoothed = (val+4) / 9;
+ depth = entry[-2].depth + 2*entry[-1].depth + 3*entry[0].depth + 2*entry[1].depth + entry[2].depth;
+ entry->smoothed = (depth+4) / 9;
}
/* vertical velocity in mm/sec */
/* Linus wants to smooth this - let's at least look at the samples that aren't FAST or CRAZY */
if (entry[0].sec - entry[-1].sec) {
- entry->velocity = velocity((entry[0].val - entry[-1].val) / (entry[0].sec - entry[-1].sec));
+ entry->velocity = velocity((entry[0].depth - entry[-1].depth) / (entry[0].sec - entry[-1].sec));
/* if our samples are short and we aren't too FAST*/
- if (entry[0].sec - entry[-1].sec < 30 && entry->velocity < FAST) {
+ if (entry[0].sec - entry[-1].sec < 15 && entry->velocity < FAST) {
int past = -2;
- while (i+past > 0 && entry[0].sec - entry[past].sec < 30)
+ while (i+past > 0 && entry[0].sec - entry[past].sec < 15)
past--;
- entry->velocity = velocity((entry[0].val - entry[past].val) /
+ 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;
}
+/*
+ * simple structure to track the beginning and end tank pressure as
+ * well as the integral of depth over time spent while we have no
+ * pressure reading from the tank */
+typedef struct pr_track_struct pr_track_t;
+struct pr_track_struct {
+ int start;
+ int end;
+ int t_start;
+ int t_end;
+ double pressure_time;
+ pr_track_t *next;
+};
+
+static pr_track_t *pr_track_alloc(int start, int t_start) {
+ pr_track_t *pt = malloc(sizeof(pr_track_t));
+ pt->start = start;
+ pt->t_start = t_start;
+ pt->end = 0;
+ pt->t_end = 0;
+ pt->pressure_time = 0.0;
+ pt->next = NULL;
+ return pt;
+}
+
+/* poor man's linked list */
+static pr_track_t *list_last(pr_track_t *list)
+{
+ pr_track_t *tail = list;
+ if (!tail)
+ return NULL;
+ while (tail->next) {
+ tail = tail->next;
+ }
+ return tail;
+}
+
+static pr_track_t *list_add(pr_track_t *list, pr_track_t *element)
+{
+ pr_track_t *tail = list_last(list);
+ if (!tail)
+ return element;
+ tail->next = element;
+ return list;
+}
+
+static void list_free(pr_track_t *list)
+{
+ if (!list)
+ return;
+ list_free(list->next);
+ free(list);
+}
+
+static void dump_pr_track(pr_track_t **track_pr)
+{
+ int cyl;
+ pr_track_t *list;
+
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
+ list = track_pr[cyl];
+ while (list) {
+ printf("cyl%d: start %d end %d t_start %d t_end %d pt %6.3f\n", cyl,
+ list->start, list->end, list->t_start, list->t_end, list->pressure_time);
+ list = list->next;
+ }
+ }
+}
+
+static void fill_missing_tank_pressures(struct plot_info *pi, pr_track_t **track_pr)
+{
+ pr_track_t *list = NULL;
+ pr_track_t *nlist = NULL;
+ double pt, magic;
+ int cyl, i;
+ struct plot_data *entry;
+ int cur_pr[MAX_CYLINDERS];
+
+ if (0) {
+ /* another great debugging tool */
+ dump_pr_track(track_pr);
+ }
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
+ cur_pr[cyl] = track_pr[cyl]->start;
+ }
+
+ /* The first two are "fillers", but in case we don't have a sample
+ * at time 0 we need to process the second of them here */
+ for (i = 1; i < pi->nr; i++) {
+ entry = pi->entry + i;
+ if (SENSOR_PRESSURE(entry)) {
+ cur_pr[entry->cylinderindex] = SENSOR_PRESSURE(entry);
+ } else {
+ if(!list || list->t_end < entry->sec) {
+ nlist = track_pr[entry->cylinderindex];
+ list = NULL;
+ while (nlist && nlist->t_start <= entry->sec) {
+ list = nlist;
+ nlist = list->next;
+ }
+ /* there may be multiple segments - so
+ * let's assemble the length */
+ nlist = list;
+ 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;
+ }
+ }
+ if (!nlist) {
+ /* just continue without calculating
+ * interpolated values */
+ INTERPOLATED_PRESSURE(entry) = cur_pr[entry->cylinderindex];
+ list = NULL;
+ continue;
+ }
+ magic = (nlist->end - cur_pr[entry->cylinderindex]) / pt;
+ }
+ if (pt != 0.0) {
+ double cur_pt = (entry->sec - (entry-1)->sec) *
+ (1 + (entry->depth + (entry-1)->depth) / 20000.0);
+ INTERPOLATED_PRESSURE(entry) =
+ cur_pr[entry->cylinderindex] + cur_pt * magic + 0.5;
+ cur_pr[entry->cylinderindex] = INTERPOLATED_PRESSURE(entry);
+ } else
+ INTERPOLATED_PRESSURE(entry) = cur_pr[entry->cylinderindex];
+ }
+ }
+}
+
+static int get_cylinder_index(struct dive *dive, struct event *ev)
+{
+ int i;
+
+ /*
+ * Try to find a cylinder that matches the O2 percentage
+ * in the gas change event 'value' field.
+ *
+ * Crazy suunto gas change events. We really should do
+ * this in libdivecomputer or something.
+ */
+ for (i = 0; i < MAX_CYLINDERS; i++) {
+ cylinder_t *cyl = dive->cylinder+i;
+ int o2 = (cyl->gasmix.o2.permille + 5) / 10;
+ if (o2 == ev->value)
+ return i;
+ }
+
+ return 0;
+}
+
+static struct event *get_next_gaschange(struct event *event)
+{
+ while (event) {
+ if (!strcmp(event->name, "gaschange"))
+ return event;
+ event = event->next;
+ }
+ return event;
+}
+
+static int set_cylinder_index(struct plot_info *pi, int i, int cylinderindex, unsigned int end)
+{
+ while (i < pi->nr) {
+ struct plot_data *entry = pi->entry+i;
+ if (entry->sec > end)
+ break;
+ if (entry->cylinderindex != cylinderindex) {
+ entry->cylinderindex = cylinderindex;
+ entry->pressure[0] = 0;
+ }
+ i++;
+ }
+ return i;
+}
+
+static void check_gas_change_events(struct dive *dive, struct plot_info *pi)
+{
+ int i = 0, cylinderindex = 0;
+ struct event *ev = get_next_gaschange(dive->events);
+
+ if (!ev)
+ return;
+
+ do {
+ i = set_cylinder_index(pi, i, cylinderindex, ev->time.seconds);
+ cylinderindex = get_cylinder_index(dive, ev);
+ ev = get_next_gaschange(ev->next);
+ } while (ev);
+ set_cylinder_index(pi, i, cylinderindex, ~0u);
+}
+
+/* for computers that track gas changes through events */
+static int count_gas_change_events(struct dive *dive)
+{
+ int count = 0;
+ struct event *ev = get_next_gaschange(dive->events);
+
+ while (ev) {
+ count++;
+ ev = get_next_gaschange(ev->next);
+ }
+ return count;
+}
+
/*
* Create a plot-info with smoothing and ranged min/max
*
* sides, so that you can do end-points without having to worry
* about it.
*/
-static struct plot_info *create_plot_info(struct dive *dive)
+static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, struct sample *dive_sample)
{
+ int cylinderindex = -1;
int lastdepth, lastindex;
- int i, nr = dive->samples + 4, sec;
- size_t alloc_size = plot_info_size(nr);
+ int i, pi_idx, nr, sec, cyl;
+ size_t alloc_size;
struct plot_info *pi;
-
+ pr_track_t *track_pr[MAX_CYLINDERS] = {NULL, };
+ pr_track_t *pr_track, *current;
+ gboolean missing_pr = FALSE;
+ struct plot_data *entry = NULL;
+ struct event *ev;
+
+ /* we want to potentially add synthetic plot_info elements for the gas changes */
+ nr = nr_samples + 4 + 2 * count_gas_change_events(dive);
+ alloc_size = plot_info_size(nr);
pi = malloc(alloc_size);
if (!pi)
return pi;
memset(pi, 0, alloc_size);
pi->nr = nr;
+ pi_idx = 2; /* the two extra events at the start */
+ /* check for gas changes before the samples start */
+ ev = get_next_gaschange(dive->events);
+ while (ev && ev->time.seconds < dive_sample->time.seconds) {
+ entry = pi->entry + pi_idx;
+ entry->sec = ev->time.seconds;
+ entry->depth = 0; /* is that always correct ? */
+ pi_idx++;
+ ev = get_next_gaschange(ev->next);
+ }
+ if (ev && ev->time.seconds == dive_sample->time.seconds) {
+ /* we already have a sample at the time of the event */
+ ev = get_next_gaschange(ev->next);
+ }
sec = 0;
lastindex = 0;
lastdepth = -1;
- for (i = 0; i < dive->samples; i++) {
+ for (i = 0; i < nr_samples; i++) {
int depth;
- struct sample *sample = dive->sample+i;
- struct plot_data *entry = pi->entry + i + 2;
-
- sec = entry->sec = sample->time.seconds;
- depth = entry->val = sample->depth.mm;
- entry->pressure = sample->cylinderpressure.mbar;
+ int delay = 0;
+ struct sample *sample = dive_sample+i;
+
+ entry = pi->entry + i + pi_idx;
+ while (ev && ev->time.seconds < sample->time.seconds) {
+ /* insert two fake plot info structures for the end of
+ * the old tank and the start of the new tank */
+ if (ev->time.seconds == sample->time.seconds - 1) {
+ entry->sec = ev->time.seconds - 1;
+ (entry+1)->sec = ev->time.seconds;
+ } else {
+ entry->sec = ev->time.seconds;
+ (entry+1)->sec = ev->time.seconds + 1;
+ }
+ /* we need a fake depth - let's interpolate */
+ if (i) {
+ entry->depth = sample->depth.mm -
+ (sample->depth.mm - (sample-1)->depth.mm) / 2;
+ } else
+ entry->depth = sample->depth.mm;
+ (entry+1)->depth = entry->depth;
+ pi_idx += 2;
+ entry = pi->entry + i + pi_idx;
+ ev = get_next_gaschange(ev->next);
+ }
+ if (ev && ev->time.seconds == sample->time.seconds) {
+ /* we already have a sample at the time of the event
+ * just add a new one for the old tank and delay the
+ * real even by one second (to keep time monotonous) */
+ entry->sec = ev->time.seconds;
+ entry->depth = sample->depth.mm;
+ pi_idx++;
+ entry = pi->entry + i + pi_idx;
+ ev = get_next_gaschange(ev->next);
+ delay = 1;
+ }
+ sec = entry->sec = sample->time.seconds + delay;
+ depth = entry->depth = sample->depth.mm;
+ entry->cylinderindex = sample->cylinderindex;
+ SENSOR_PRESSURE(entry) = sample->cylinderpressure.mbar;
entry->temperature = sample->temperature.mkelvin;
if (depth || lastdepth)
- lastindex = i+2;
+ lastindex = i + pi_idx;
lastdepth = depth;
if (depth > pi->maxdepth)
pi->maxdepth = depth;
}
- if (lastdepth)
- lastindex = i + 2;
- /* Fill in the last two entries with empty values but valid times */
- i = dive->samples + 2;
+ entry = pi->entry + i + pi_idx;
+ /* are there still unprocessed gas changes? that would be very strange */
+ while (ev) {
+ entry->sec = ev->time.seconds;
+ entry->depth = 0; /* why are there gas changes after the dive is over? */
+ pi_idx++;
+ entry = pi->entry + i + pi_idx;
+ ev = get_next_gaschange(ev->next);
+ }
+ nr = nr_samples + pi_idx - 2;
+ check_gas_change_events(dive, pi);
+
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) /* initialize the start pressures */
+ track_pr[cyl] = pr_track_alloc(dive->cylinder[cyl].start.mbar, -1);
+ current = track_pr[pi->entry[2].cylinderindex];
+ for (i = 0; i < nr + 1; i++) {
+ entry = pi->entry + i + 1;
+
+ entry->same_cylinder = entry->cylinderindex == cylinderindex;
+ cylinderindex = entry->cylinderindex;
+
+ /* track the segments per cylinder and their pressure/time integral */
+ if (!entry->same_cylinder) {
+ current->end = SENSOR_PRESSURE(entry-1);
+ current->t_end = (entry-1)->sec;
+ current = pr_track_alloc(SENSOR_PRESSURE(entry), entry->sec);
+ track_pr[cylinderindex] = list_add(track_pr[cylinderindex], current);
+ } else { /* same cylinder */
+ if ((!SENSOR_PRESSURE(entry) && SENSOR_PRESSURE(entry-1)) ||
+ (SENSOR_PRESSURE(entry) && !SENSOR_PRESSURE(entry-1))) {
+ /* transmitter changed its working status */
+ current->end = SENSOR_PRESSURE(entry-1);
+ current->t_end = (entry-1)->sec;
+ current = pr_track_alloc(SENSOR_PRESSURE(entry), entry->sec);
+ track_pr[cylinderindex] =
+ list_add(track_pr[cylinderindex], current);
+ }
+ }
+ /* finally, do the discrete integration to get the SAC rate equivalent */
+ current->pressure_time += (entry->sec - (entry-1)->sec) *
+ (1 + (entry->depth + (entry-1)->depth) / 20000.0);
+ missing_pr |= !SENSOR_PRESSURE(entry);
+ }
+
+ if (entry)
+ current->t_end = entry->sec;
+
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) { /* initialize the end pressures */
+ int pr = dive->cylinder[cyl].end.mbar;
+ if (pr && track_pr[cyl]) {
+ pr_track = list_last(track_pr[cyl]);
+ pr_track->end = pr;
+ }
+ }
+ /* Fill in the last two entries with empty values but valid times
+ * without creating a false cylinder change event */
+ i = nr + 2;
pi->entry[i].sec = sec + 20;
+ pi->entry[i].same_cylinder = 1;
+ pi->entry[i].cylinderindex = pi->entry[i-1].cylinderindex;
+ INTERPOLATED_PRESSURE(pi->entry + i) = GET_PRESSURE(pi->entry + i - 1);
pi->entry[i+1].sec = sec + 40;
-
+ pi->entry[i+1].same_cylinder = 1;
+ pi->entry[i+1].cylinderindex = pi->entry[i-1].cylinderindex;
+ INTERPOLATED_PRESSURE(pi->entry + i + 1) = GET_PRESSURE(pi->entry + i - 1);
+ /* the number of actual entries - some computers have lots of
+ * depth 0 samples at the end of a dive, we want to make sure
+ * we have exactly one of them at the end */
pi->nr = lastindex+1;
+ while (pi->nr <= i+2 && pi->entry[pi->nr-1].depth > 0)
+ pi->nr++;
pi->maxtime = pi->entry[lastindex].sec;
- pi->minpressure = dive->cylinder[0].end.mbar;
- pi->maxpressure = dive->cylinder[0].start.mbar;
+ /* Analyze_plot_info() will do the sample max pressures,
+ * this handles the manual pressures
+ */
+ pi->maxpressure = 0;
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
+ unsigned int mbar = dive->cylinder[cyl].start.mbar;
+ if (mbar > pi->maxpressure)
+ pi->maxpressure = mbar;
+ }
pi->meandepth = dive->meandepth.mm;
+ if (missing_pr) {
+ fill_missing_tank_pressures(pi, track_pr);
+ }
+ for (cyl = 0; cyl < MAX_CYLINDERS; cyl++)
+ list_free(track_pr[cyl]);
+ if (0) /* awesome for debugging - not useful otherwise */
+ dump_pi(pi);
return analyze_plot_info(pi);
}
-void plot(struct graphics_context *gc, int w, int h, struct dive *dive)
+void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_area, struct dive *dive)
{
- double topx, topy;
- struct plot_info *pi = create_plot_info(dive);
+ struct plot_info *pi;
+ static struct sample fake[4];
+ struct sample *sample = dive->sample;
+ int nr = dive->samples;
+
+ if (!nr) {
+ /* The dive has no samples, so create a few fake ones. This assumes an
+ ascent/descent rate of 9 m/min, which is just below the limit for FAST. */
+ 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;
+ fake[2].time.seconds = duration - asc_desc_time;
+ fake[2].depth.mm = maxdepth;
+ fake[3].time.seconds = duration * 1.00;
+ nr = 4;
+ }
- topx = w / 20.0;
- topy = h / 20.0;
- cairo_translate(gc->cr, topx, topy);
- cairo_set_line_width(gc->cr, 2);
+ pi = create_plot_info(dive, nr, sample);
+
+ cairo_translate(gc->cr, drawing_area->x, drawing_area->y);
+ cairo_set_line_width(gc->cr, 1);
cairo_set_line_cap(gc->cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join(gc->cr, CAIRO_LINE_JOIN_ROUND);
*
* Snif. What a pity.
*/
- gc->maxx = (w - 2*topx);
- gc->maxy = (h - 2*topy);
+ gc->maxx = (drawing_area->width - 2*drawing_area->x);
+ gc->maxy = (drawing_area->height - 2*drawing_area->y);
+
+ /* Depth profile */
+ plot_depth_profile(gc, pi);
+ plot_events(gc, pi, dive);
/* Temperature profile */
plot_temperature_profile(gc, pi);
/* Cylinder pressure plot */
- plot_cylinder_pressure(gc, pi);
-
- /* Depth profile */
- plot_depth_profile(gc, pi);
+ plot_cylinder_pressure(gc, pi, dive);
/* Text on top of all graphs.. */
plot_temperature_text(gc, pi);
gc->leftx = 0; gc->rightx = 1.0;
gc->topy = 0; gc->bottomy = 1.0;
- set_source_rgb(gc, 1, 1, 1);
+ set_source_rgba(gc, BOUNDING_BOX);
+ cairo_set_line_width(gc->cr, 1);
move_to(gc, 0, 0);
line_to(gc, 0, 1);
line_to(gc, 1, 1);
projects / ext / subsurface.git / blobdiff