X-Git-Url: http://git.tdb.fi/?p=ext%2Fsubsurface.git;a=blobdiff_plain;f=profile.c;h=0039867efc29355737294cb1ac02a0cb85743ce6;hp=b01514a574be3001aa80d3f5ee3cff96d846c614;hb=HEAD;hpb=290ce56d0181c0c7e7d6e1af3eb27d3015cffca7 diff --git a/profile.c b/profile.c index b01514a..0039867 100644 --- a/profile.c +++ b/profile.c @@ -1,5 +1,5 @@ /* 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 @@ -11,10 +11,13 @@ #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 { @@ -40,20 +43,76 @@ struct plot_info { int avg[3]; } entry[]; }; + #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)) -/* convert velocity to colors */ -typedef struct { double r, g, b; } rgb_t; -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}, - [FAST] = {0.8, 0.5, 0.0}, - [CRAZY] = {1.0, 0.0, 0.0}, +#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)) @@ -73,30 +132,28 @@ static void line_to(struct graphics_context *gc, double x, double y) 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); } -static void set_source_rgb_struct(struct graphics_context *gc, const rgb_t *rgb) +void init_profile_background(struct graphics_context *gc) { - set_source_rgba(gc, rgb->r, rgb->g, rgb->b, 1); + set_source_rgba(gc, BACKGROUND); } -void set_source_rgb(struct graphics_context *gc, double r, double g, double b) +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)) @@ -112,9 +169,10 @@ static void dump_pi (struct plot_info *pi) 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" - " temperature:%d depth:%d smoothed:%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"); } @@ -123,27 +181,45 @@ static void dump_pi (struct plot_info *pi) * 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; @@ -179,13 +255,13 @@ static void plot_text(struct graphics_context *gc, const 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); } @@ -254,14 +330,14 @@ static void plot_one_event(struct graphics_context *gc, struct plot_info *pi, st /* draw a little tirangular marker and attach tooltip */ x = SCALEX(gc, event->time.seconds); y = SCALEY(gc, depth); - set_source_rgba(gc, 1.0, 1.0, 0.1, 0.8); + 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, 0.0, 0.0, 0.0, 0.8); + 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); @@ -272,7 +348,7 @@ static void plot_one_event(struct graphics_context *gc, struct plot_info *pi, st static void plot_events(struct graphics_context *gc, struct plot_info *pi, struct dive *dive) { - static const text_render_options_t tro = {14, 1.0, 0.2, 0.2, CENTER, TOP}; + static const text_render_options_t tro = {14, EVENTS, CENTER, TOP}; struct event *event = dive->events; if (gc->printer) @@ -296,8 +372,8 @@ static void render_depth_sample(struct graphics_context *gc, struct plot_data *e 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; @@ -341,7 +417,7 @@ static void plot_smoothed_profile(struct graphics_context *gc, struct plot_info 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++; @@ -351,12 +427,12 @@ static void plot_smoothed_profile(struct graphics_context *gc, struct plot_info } 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); + set_source_rgba(gc, MINUTE); move_to(gc, entry->sec, entry->min[index]->depth); for (i = 1; i < pi->nr; i++) { entry++; @@ -374,9 +450,9 @@ static void plot_minmax_profile(struct graphics_context *gc, struct plot_info *p { 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) @@ -386,20 +462,21 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi 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) @@ -407,18 +484,26 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi gc->leftx = 0; gc->rightx = maxtime; gc->topy = 0; gc->bottomy = 1.0; - set_source_rgba(gc, 1, 1, 1, 0.5); + 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 every second time marker */ - text_render_options_t tro = {10, 0.2, 1.0, 0.2, CENTER, TOP}; - for (i = incr; i < maxtime; i += 2 * incr) - plot_text(gc, &tro, i, 1, "%d", i/60); - + /* 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; @@ -427,7 +512,7 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi 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); @@ -436,7 +521,7 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi /* Show mean depth */ if (! gc->printer) { - set_source_rgba(gc, 1, 0.2, 0.2, 0.40); + set_source_rgba(gc, MEAN_DEPTH); move_to(gc, 0, pi->meandepth); line_to(gc, 1, pi->meandepth); cairo_stroke(cr); @@ -453,24 +538,24 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi 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->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 */ @@ -482,7 +567,7 @@ static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi * representing the vertical velocity, so we need to * chop this into short segments */ depth = entry->depth; - set_source_rgb_struct(gc, &velocity_color[entry->velocity]); + 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); @@ -517,7 +602,7 @@ static void plot_single_temp_text(struct graphics_context *gc, int sec, int mkel { double deg; const char *unit; - static const text_render_options_t tro = {12, 0.6, 0.6, 1.0, LEFT, TOP}; + static const text_render_options_t tro = {12, TEMP_TEXT, LEFT, TOP}; deg = get_temp_units(mkelvin, &unit); @@ -570,7 +655,8 @@ static void plot_temperature_profile(struct graphics_context *gc, struct plot_in 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; @@ -599,19 +685,6 @@ 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; the calculation simply maps the delta between * sac and avg_sac to indexes 0 .. (SAC_COLORS - 1) with everything @@ -628,9 +701,9 @@ static void set_sac_color(struct graphics_context *gc, int sac, int avg_sac) sac_index = 0; if (sac_index > SAC_COLORS - 1) sac_index = SAC_COLORS - 1; - set_source_rgb_struct(gc, &sac_color[sac_index]); + set_source_rgba(gc, SAC_COLORS_START_IDX + sac_index); } else { - set_source_rgb(gc, 1.0, 1.0, 1.0); + set_source_rgba(gc, SAC_DEFAULT); } } @@ -657,6 +730,8 @@ static void plot_cylinder_pressure(struct graphics_context *gc, struct plot_info if (!get_cylinder_pressure_range(gc, pi)) return; + cairo_set_line_width(gc->cr, 2); + for (i = 0; i < pi->nr; i++) { int mbar; struct plot_data *entry = pi->entry + i; @@ -714,7 +789,7 @@ static void plot_pressure_value(struct graphics_context *gc, int mbar, int sec, const char *unit; pressure = get_pressure_units(mbar, &unit); - text_render_options_t tro = {10, 0.2, 1.0, 0.2, xalign, yalign}; + text_render_options_t tro = {10, PRESSURE_TEXT, xalign, yalign}; plot_text(gc, &tro, sec, mbar, "%d %s", pressure, unit); } @@ -824,7 +899,7 @@ static velocity_t velocity(int speed) 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 */ @@ -880,7 +955,7 @@ static struct plot_info *analyze_plot_info(struct plot_info *pi) 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 @@ -892,7 +967,7 @@ static struct plot_info *analyze_plot_info(struct plot_info *pi) struct plot_data *entry = pi->entry +i; analyze_plot_info_minmax(entry, pi->entry, pi->entry+nr); } - + return pi; } @@ -965,8 +1040,7 @@ static void dump_pr_track(pr_track_t **track_pr) } } -static void fill_missing_tank_pressures(struct dive *dive, struct plot_info *pi, - pr_track_t **track_pr) +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; @@ -1000,16 +1074,18 @@ static void fill_missing_tank_pressures(struct dive *dive, struct plot_info *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 @@ -1289,7 +1365,7 @@ static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, str pi->meandepth = dive->meandepth.mm; if (missing_pr) { - fill_missing_tank_pressures(dive, pi, track_pr); + fill_missing_tank_pressures(pi, track_pr); } for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) list_free(track_pr[cyl]); @@ -1306,12 +1382,17 @@ void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_area, stru 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 = duration * 0.05; + fake[1].time.seconds = asc_desc_time; fake[1].depth.mm = maxdepth; - fake[2].time.seconds = duration * 0.95; + fake[2].time.seconds = duration - asc_desc_time; fake[2].depth.mm = maxdepth; fake[3].time.seconds = duration * 1.00; nr = 4; @@ -1320,7 +1401,7 @@ void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_area, stru pi = create_plot_info(dive, nr, sample); cairo_translate(gc->cr, drawing_area->x, drawing_area->y); - cairo_set_line_width(gc->cr, 2); + 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); @@ -1334,13 +1415,13 @@ void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_area, stru gc->maxx = (drawing_area->width - 2*drawing_area->x); gc->maxy = (drawing_area->height - 2*drawing_area->y); - /* Temperature profile */ - plot_temperature_profile(gc, pi); - /* 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, dive); @@ -1353,7 +1434,8 @@ void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_area, stru 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);