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subsurface/core/plannernotes.c
Dirk Hohndel 8e212c0858 Fedora Rawhide builds fail without stdlib include 
Implicit declarations of malloc, free, atoi, and others are considered an
error now.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2023-12-04 12:55:10 -08:00

626 lines
30 KiB
C
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// SPDX-License-Identifier: GPL-2.0
/* planner.c
*
* code that allows us to plan future dives
*
* (c) Dirk Hohndel 2013
*/
#include <assert.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "dive.h"
#include "deco.h"
#include "units.h"
#include "divelist.h"
#include "planner.h"
#include "gettext.h"
#include "libdivecomputer/parser.h"
#include "qthelper.h"
#include "format.h"
#include "version.h"
#include "membuffer.h"
static int diveplan_duration(struct diveplan *diveplan)
{
struct divedatapoint *dp = diveplan->dp;
int duration = 0;
int lastdepth = 0;
while(dp) {
if (dp->time > duration && (dp->depth.mm > SURFACE_THRESHOLD || lastdepth > SURFACE_THRESHOLD)) {
duration = dp->time;
lastdepth = dp->depth.mm;
}
dp = dp->next;
}
return (duration + 30) / 60;
}
/* Add the icd results of one trimix gas change to the dive plan html buffer. Two rows are added to the table, one
* indicating fractions of gas, the other indication partial pressures of gas. This function makes use of the
* icd_data structure that was filled with information by the function isobaric_counterdiffusion().
* Parameters: 1) Pointer to the output buffer position at which writing should start.
* 2) The size of the part of the unused output buffer that remains unused.
* 3) The data structure containing icd calculation results: icdvalues.
* 4) A boolean value indicating whether a table header should be written before the data. Only during 1st call.
* 5) Pointers to gas mixes in the gas change: gas-from and gas-to.
* Returns: The size of the output buffer that has been used after the new results have been added.
*/
static void add_icd_entry(struct membuffer *b, struct icd_data *icdvalues, bool printheader, int time_seconds, int ambientpressure_mbar, struct gasmix gas_from, struct gasmix gas_to)
{
if (printheader) { // Create a table description and a table header if no icd data have been written yet.
put_format(b, "<div>%s:", translate("gettextFromC","Isobaric counterdiffusion information"));
put_format(b, "<table><tr><td align='left'><b>%s</b></td>", translate("gettextFromC", "runtime"));
put_format(b, "<td align='center'><b>%s</b></td>", translate("gettextFromC", "gaschange"));
put_format(b, "<td style='padding-left: 15px;'><b>%s</b></td>", translate("gettextFromC", "&#916;He"));
put_format(b, "<td style='padding-left: 20px;'><b>%s</b></td>", translate("gettextFromC", "&#916;N&#8322;"));
put_format(b, "<td style='padding-left: 10px;'><b>%s</b></td></tr>", translate("gettextFromC", "max &#916;N&#8322;"));
} // Add one entry to the icd table:
put_format_loc(b,
"<tr><td rowspan='2' style= 'vertical-align:top;'>%3d%s</td>"
"<td rowspan=2 style= 'vertical-align:top;'>%s&#10137;",
(time_seconds + 30) / 60, translate("gettextFromC", "min"), gasname(gas_from));
put_format_loc(b,
"%s</td><td style='padding-left: 10px;'>%+5.1f%%</td>"
"<td style= 'padding-left: 15px; color:%s;'>%+5.1f%%</td>"
"<td style='padding-left: 15px;'>%+5.1f%%</td></tr>"
"<tr><td style='padding-left: 10px;'>%+5.2f%s</td>"
"<td style='padding-left: 15px; color:%s;'>%+5.2f%s</td>"
"<td style='padding-left: 15px;'>%+5.2f%s</td></tr>",
gasname(gas_to), icdvalues->dHe / 10.0,
((5 * icdvalues->dN2) > -icdvalues->dHe) ? "red" : "#383838", icdvalues->dN2 / 10.0 , 0.2 * (-icdvalues->dHe / 10.0),
ambientpressure_mbar * icdvalues->dHe / 1e6f, translate("gettextFromC", "bar"), ((5 * icdvalues->dN2) > -icdvalues->dHe) ? "red" : "#383838",
ambientpressure_mbar * icdvalues->dN2 / 1e6f, translate("gettextFromC", "bar"),
ambientpressure_mbar * -icdvalues->dHe / 5e6f, translate("gettextFromC", "bar"));
}
const char *get_planner_disclaimer()
{
return translate("gettextFromC", "DISCLAIMER / WARNING: THIS IMPLEMENTATION OF THE %s "
"ALGORITHM AND A DIVE PLANNER IMPLEMENTATION BASED ON THAT HAS "
"RECEIVED ONLY A LIMITED AMOUNT OF TESTING. WE STRONGLY RECOMMEND NOT TO "
"PLAN DIVES SIMPLY BASED ON THE RESULTS GIVEN HERE.");
}
/* Returns newly allocated buffer. Must be freed by caller */
char *get_planner_disclaimer_formatted()
{
struct membuffer buf = { 0 };
const char *deco = decoMode(true) == VPMB ? translate("gettextFromC", "VPM-B")
: translate("gettextFromC", "BUHLMANN");
put_format(&buf, get_planner_disclaimer(), deco);
return detach_cstring(&buf);
}
void add_plan_to_notes(struct diveplan *diveplan, struct dive *dive, bool show_disclaimer, int error)
{
struct membuffer buf = { 0 };
struct membuffer icdbuf = { 0 };
const char *segmentsymbol;
int lastdepth = 0, lasttime = 0, lastsetpoint = -1, newdepth = 0, lastprintdepth = 0, lastprintsetpoint = -1;
struct gasmix lastprintgasmix = gasmix_invalid;
struct divedatapoint *dp = diveplan->dp;
bool plan_verbatim = prefs.verbatim_plan;
bool plan_display_runtime = prefs.display_runtime;
bool plan_display_duration = prefs.display_duration;
bool plan_display_transitions = prefs.display_transitions;
bool gaschange_after = !plan_verbatim;
bool gaschange_before;
bool rebreatherchange_after = !plan_verbatim;
bool rebreatherchange_before;
enum divemode_t lastdivemode = UNDEF_COMP_TYPE;
bool lastentered = true;
bool icdwarning = false, icdtableheader = true;
struct divedatapoint *nextdp = NULL;
struct divedatapoint *lastbottomdp = NULL;
struct icd_data icdvalues;
char *temp;
if (!dp)
return;
if (error) {
put_format(&buf, "<span style='color: red;'>%s </span> %s<br/>",
translate("gettextFromC", "Warning:"),
translate("gettextFromC", "Decompression calculation aborted due to excessive time"));
goto finished;
}
if (show_disclaimer) {
char *disclaimer = get_planner_disclaimer_formatted();
put_string(&buf, "<div><b>");
put_string(&buf, disclaimer);
put_string(&buf, "</b><br/>\n</div>\n");
free(disclaimer);
}
put_string(&buf, "<div>\n<b>");
if (diveplan->surface_interval < 0) {
put_format(&buf, "%s (%s) %s",
translate("gettextFromC", "Subsurface"),
subsurface_canonical_version(),
translate("gettextFromC", "dive plan</b> (overlapping dives detected)"));
goto finished;
} else if (diveplan->surface_interval >= 48 * 60 *60) {
char *current_date = get_current_date();
put_format(&buf, "%s (%s) %s %s",
translate("gettextFromC", "Subsurface"),
subsurface_canonical_version(),
translate("gettextFromC", "dive plan</b> created on"),
current_date);
free(current_date);
} else {
char *current_date = get_current_date();
put_format_loc(&buf, "%s (%s) %s %d:%02d) %s %s",
translate("gettextFromC", "Subsurface"),
subsurface_canonical_version(),
translate("gettextFromC", "dive plan</b> (surface interval "),
FRACTION(diveplan->surface_interval / 60, 60),
translate("gettextFromC", "created on"),
current_date);
free(current_date);
}
put_string(&buf, "<br/>\n");
if (prefs.display_variations && decoMode(true) != RECREATIONAL)
put_format_loc(&buf, translate("gettextFromC", "Runtime: %dmin%s"),
diveplan_duration(diveplan), "VARIATIONS");
else
put_format_loc(&buf, translate("gettextFromC", "Runtime: %dmin%s"),
diveplan_duration(diveplan), "");
put_string(&buf, "<br/>\n</div>\n");
if (!plan_verbatim) {
put_format(&buf, "<table>\n<thead>\n<tr><th></th><th>%s</th>", translate("gettextFromC", "depth"));
if (plan_display_duration)
put_format(&buf, "<th style='padding-left: 10px;'>%s</th>", translate("gettextFromC", "duration"));
if (plan_display_runtime)
put_format(&buf, "<th style='padding-left: 10px;'>%s</th>", translate("gettextFromC", "runtime"));
put_format(&buf, "<th style='padding-left: 10px; float: left;'>%s</th></tr>\n</thead>\n<tbody style='float: left;'>\n",
translate("gettextFromC", "gas"));
}
do {
struct gasmix gasmix, newgasmix = {};
const char *depth_unit;
double depthvalue;
int decimals;
bool isascent = (dp->depth.mm < lastdepth);
nextdp = dp->next;
if (dp->time == 0)
continue;
gasmix = get_cylinder(dive, dp->cylinderid)->gasmix;
depthvalue = get_depth_units(dp->depth.mm, &decimals, &depth_unit);
/* analyze the dive points ahead */
while (nextdp && nextdp->time == 0)
nextdp = nextdp->next;
if (nextdp)
newgasmix = get_cylinder(dive, nextdp->cylinderid)->gasmix;
gaschange_after = (nextdp && (gasmix_distance(gasmix, newgasmix)));
gaschange_before = (gasmix_distance(lastprintgasmix, gasmix));
rebreatherchange_after = (nextdp && (dp->setpoint != nextdp->setpoint || dp->divemode != nextdp->divemode));
rebreatherchange_before = lastprintsetpoint != dp->setpoint || lastdivemode != dp->divemode;
/* do we want to skip this leg as it is devoid of anything useful? */
if (!dp->entered &&
nextdp &&
dp->depth.mm != lastdepth &&
nextdp->depth.mm != dp->depth.mm &&
!gaschange_before &&
!gaschange_after &&
!rebreatherchange_before &&
!rebreatherchange_after)
continue;
// Ignore final surface segment for notes
if (lastdepth == 0 && dp->depth.mm == 0 && !dp->next)
continue;
if ((dp->time - lasttime < 10 && lastdepth == dp->depth.mm) && !(gaschange_after && dp->next && dp->depth.mm != dp->next->depth.mm))
continue;
/* Store pointer to last entered datapoint for minimum gas calculation */
if (dp->entered && !nextdp->entered)
lastbottomdp = dp;
if (plan_verbatim) {
/* When displaying a verbatim plan, we output a waypoint for every gas change.
* Therefore, we do not need to test for difficult cases that mean we need to
* print a segment just so we don't miss a gas change. This makes the logic
* to determine whether or not to print a segment much simpler than with the
* non-verbatim plan.
*/
if (dp->depth.mm != lastprintdepth) {
if (plan_display_transitions || dp->entered || !dp->next || (gaschange_after && dp->next && dp->depth.mm != nextdp->depth.mm)) {
if (dp->setpoint) {
put_format_loc(&buf, translate("gettextFromC", "%s to %.*f %s in %d:%02d min - runtime %d:%02u on %s (SP = %.1fbar)"),
dp->depth.mm < lastprintdepth ? translate("gettextFromC", "Ascend") : translate("gettextFromC", "Descend"),
decimals, depthvalue, depth_unit,
FRACTION(dp->time - lasttime, 60),
FRACTION(dp->time, 60),
gasname(gasmix),
(double) dp->setpoint / 1000.0);
} else {
put_format_loc(&buf, translate("gettextFromC", "%s to %.*f %s in %d:%02d min - runtime %d:%02u on %s"),
dp->depth.mm < lastprintdepth ? translate("gettextFromC", "Ascend") : translate("gettextFromC", "Descend"),
decimals, depthvalue, depth_unit,
FRACTION(dp->time - lasttime, 60),
FRACTION(dp->time, 60),
gasname(gasmix));
}
put_string(&buf, "<br/>\n");
}
newdepth = dp->depth.mm;
lasttime = dp->time;
} else {
if ((nextdp && dp->depth.mm != nextdp->depth.mm) || gaschange_after) {
if (dp->setpoint) {
put_format_loc(&buf, translate("gettextFromC", "Stay at %.*f %s for %d:%02d min - runtime %d:%02u on %s (SP = %.1fbar CCR)"),
decimals, depthvalue, depth_unit,
FRACTION(dp->time - lasttime, 60),
FRACTION(dp->time, 60),
gasname(gasmix),
(double) dp->setpoint / 1000.0);
} else {
put_format_loc(&buf, translate("gettextFromC", "Stay at %.*f %s for %d:%02d min - runtime %d:%02u on %s %s"),
decimals, depthvalue, depth_unit,
FRACTION(dp->time - lasttime, 60),
FRACTION(dp->time, 60),
gasname(gasmix),
translate("gettextFromC", divemode_text_ui[dp->divemode]));
}
put_string(&buf, "<br/>\n");
newdepth = dp->depth.mm;
lasttime = dp->time;
}
}
} else {
/* When not displaying the verbatim dive plan, we typically ignore ascents between deco stops,
* unless the display transitions option has been selected. We output a segment if any of the
* following conditions are met.
* 1) Display transitions is selected
* 2) The segment was manually entered
* 3) It is the last segment of the dive
* 4) The segment is not an ascent, there was a gas change at the start of the segment and the next segment
* is a change in depth (typical deco stop)
* 5) There is a gas change at the end of the segment and the last segment was entered (first calculated
* segment if it ends in a gas change)
* 6) There is a gaschange after but no ascent. This should only occur when backgas breaks option is selected
* 7) It is an ascent ending with a gas change, but is not followed by a stop. As case 5 already matches
* the first calculated ascent if it ends with a gas change, this should only occur if a travel gas is
* used for a calculated ascent, there is a subsequent gas change before the first deco stop, and zero
* time has been allowed for a gas switch.
*/
if (plan_display_transitions || dp->entered || !dp->next ||
(nextdp && dp->depth.mm != nextdp->depth.mm) ||
(!isascent && (gaschange_before || rebreatherchange_before) && nextdp && dp->depth.mm != nextdp->depth.mm) ||
((gaschange_after || rebreatherchange_after) && lastentered) || ((gaschange_after || rebreatherchange_after)&& !isascent) ||
(isascent && (gaschange_after || rebreatherchange_after) && nextdp && dp->depth.mm != nextdp->depth.mm ) ||
(lastentered && !dp->entered && dp->next->depth.mm == dp->depth.mm)) {
// Print a symbol to indicate whether segment is an ascent, descent, constant depth (user entered) or deco stop
if (isascent)
segmentsymbol = "&#10138;"; // up-right arrow for ascent
else if (dp->depth.mm > lastdepth)
segmentsymbol = "&#10136;"; // down-right arrow for descent
else if (dp->entered)
segmentsymbol = "&#10137;"; // right arrow for entered entered segment at constant depth
else
segmentsymbol = "-"; // minus sign (a.k.a. horizontal line) for deco stop
put_format(&buf, "<tr><td style='padding-left: 10px; float: right;'>%s</td>", segmentsymbol);
asprintf_loc(&temp, translate("gettextFromC", "%3.0f%s"), depthvalue, depth_unit);
put_format(&buf, "<td style='padding-left: 10px; float: right;'>%s</td>", temp);
free(temp);
if (plan_display_duration) {
asprintf_loc(&temp, translate("gettextFromC", "%3dmin"), (dp->time - lasttime + 30) / 60);
put_format(&buf, "<td style='padding-left: 10px; float: right;'>%s</td>", temp);
free(temp);
}
if (plan_display_runtime) {
asprintf_loc(&temp, translate("gettextFromC", "%3dmin"), (dp->time + 30) / 60);
put_format(&buf, "<td style='padding-left: 10px; float: right;'>%s</td>", temp);
free(temp);
}
/* Normally a gas change is displayed on the stopping segment, so only display a gas change at the end of
* an ascent segment if it is not followed by a stop
*/
if (isascent && gaschange_after && dp->next && nextdp && nextdp->entered) {
if (nextdp->setpoint) {
asprintf_loc(&temp, translate("gettextFromC", "(SP = %.1fbar CCR)"), nextdp->setpoint / 1000.0);
put_format(&buf, "<td style='padding-left: 10px; color: red; float: left;'><b>%s %s</b></td>",
gasname(newgasmix), temp);
free(temp);
} else {
put_format(&buf, "<td style='padding-left: 10px; color: red; float: left;'><b>%s %s</b></td>",
gasname(newgasmix), dp->divemode == UNDEF_COMP_TYPE || dp->divemode == nextdp->divemode ? "" : translate("gettextFromC", divemode_text_ui[nextdp->divemode]));
if (isascent && (get_he(lastprintgasmix) > 0)) { // For a trimix gas change on ascent, save ICD info if previous cylinder had helium
if (isobaric_counterdiffusion(lastprintgasmix, newgasmix, &icdvalues)) // Do icd calulations
icdwarning = true;
if (icdvalues.dN2 > 0) { // If the gas change involved helium as well as an increase in nitrogen..
add_icd_entry(&icdbuf, &icdvalues, icdtableheader, dp->time, depth_to_mbar(dp->depth.mm, dive), lastprintgasmix, newgasmix); // .. then print calculations to buffer.
icdtableheader = false;
}
}
}
lastprintsetpoint = nextdp->setpoint;
lastprintgasmix = newgasmix;
lastdivemode = nextdp->divemode;
gaschange_after = false;
} else if (gaschange_before || rebreatherchange_before) {
// If a new gas has been used for this segment, now is the time to show it
if (dp->setpoint) {
asprintf_loc(&temp, translate("gettextFromC", "(SP = %.1fbar CCR)"), (double) dp->setpoint / 1000.0);
put_format(&buf, "<td style='padding-left: 10px; color: red; float: left;'><b>%s %s</b></td>", gasname(gasmix), temp);
free(temp);
} else {
put_format(&buf, "<td style='padding-left: 10px; color: red; float: left;'><b>%s %s</b></td>", gasname(gasmix),
lastdivemode == UNDEF_COMP_TYPE || lastdivemode == dp->divemode ? "" : translate("gettextFromC", divemode_text_ui[dp->divemode]));
if (get_he(lastprintgasmix) > 0) { // For a trimix gas change, save ICD info if previous cylinder had helium
if (isobaric_counterdiffusion(lastprintgasmix, gasmix, &icdvalues)) // Do icd calculations
icdwarning = true;
if (icdvalues.dN2 > 0) { // If the gas change involved helium as well as an increase in nitrogen..
add_icd_entry(&icdbuf, &icdvalues, icdtableheader, lasttime, depth_to_mbar(dp->depth.mm, dive), lastprintgasmix, gasmix); // .. then print data to buffer.
icdtableheader = false;
}
}
}
// Set variables so subsequent iterations can test against the last gas printed
lastprintsetpoint = dp->setpoint;
lastprintgasmix = gasmix;
lastdivemode = dp->divemode;
gaschange_after = false;
} else {
put_string(&buf, "<td>&nbsp;</td>");
}
put_string(&buf, "</tr>\n");
newdepth = dp->depth.mm;
// Only add the time we actually displayed so rounding errors dont accumulate
lasttime += ((dp->time - lasttime + 30) / 60) * 60;
}
}
if (gaschange_after || gaschange_before) {
// gas switch at this waypoint for verbatim
if (plan_verbatim) {
if (lastsetpoint >= 0) {
if (nextdp && nextdp->setpoint) {
put_format_loc(&buf, translate("gettextFromC", "Switch gas to %s (SP = %.1fbar)"), gasname(newgasmix), (double) nextdp->setpoint / 1000.0);
} else {
put_format(&buf, translate("gettextFromC", "Switch gas to %s"), gasname(newgasmix));
if ((isascent) && (get_he(lastprintgasmix) > 0)) { // For a trimix gas change on ascent:
if (isobaric_counterdiffusion(lastprintgasmix, newgasmix, &icdvalues)) // Do icd calculations
icdwarning = true;
if (icdvalues.dN2 > 0) { // If the gas change involved helium as well as an increase in nitrogen..
add_icd_entry(&icdbuf, &icdvalues, icdtableheader, dp->time, depth_to_mbar(dp->depth.mm, dive), lastprintgasmix, newgasmix); // ... then print data to buffer.
icdtableheader = false;
}
}
}
put_string(&buf, "<br/>\n");
}
lastprintgasmix = newgasmix;
gaschange_after = false;
gasmix = newgasmix;
}
}
lastprintdepth = newdepth;
lastdepth = dp->depth.mm;
lastsetpoint = dp->setpoint;
lastentered = dp->entered;
} while ((dp = nextdp) != NULL);
if (!plan_verbatim)
put_string(&buf, "</tbody>\n</table>\n<br/>\n");
/* Print the CNS and OTU next.*/
dive->cns = 0;
dive->maxcns = 0;
update_cylinder_related_info(dive);
put_format_loc(&buf, "<div>\n%s: %i%%", translate("gettextFromC", "CNS"), dive->cns);
put_format_loc(&buf, "<br/>\n%s: %i<br/>\n</div>\n", translate("gettextFromC", "OTU"), dive->otu);
/* Print the settings for the diveplan next. */
put_string(&buf, "<div>\n");
if (decoMode(true) == BUEHLMANN) {
put_format_loc(&buf, translate("gettextFromC", "Deco model: Bühlmann ZHL-16C with GFLow = %d%% and GFHigh = %d%%"), diveplan->gflow, diveplan->gfhigh);
} else if (decoMode(true) == VPMB) {
if (diveplan->vpmb_conservatism == 0)
put_string(&buf, translate("gettextFromC", "Deco model: VPM-B at nominal conservatism"));
else
put_format_loc(&buf, translate("gettextFromC", "Deco model: VPM-B at +%d conservatism"), diveplan->vpmb_conservatism);
if (diveplan->eff_gflow)
put_format_loc(&buf, translate("gettextFromC", ", effective GF=%d/%d"), diveplan->eff_gflow, diveplan->eff_gfhigh);
} else if (decoMode(true) == RECREATIONAL) {
put_format_loc(&buf, translate("gettextFromC", "Deco model: Recreational mode based on Bühlmann ZHL-16B with GFLow = %d%% and GFHigh = %d%%"),
diveplan->gflow, diveplan->gfhigh);
}
put_string(&buf, "<br/>\n");
const char *depth_unit;
int altitude = (int) get_depth_units((int) (pressure_to_altitude(diveplan->surface_pressure)), NULL, &depth_unit);
put_format_loc(&buf, translate("gettextFromC", "ATM pressure: %dmbar (%d%s)<br/>\n</div>\n"), diveplan->surface_pressure, altitude, depth_unit);
/* Get SAC values and units for printing it in gas consumption */
double bottomsacvalue, decosacvalue;
int sacdecimals;
const char* sacunit;
bottomsacvalue = get_volume_units(prefs.bottomsac, &sacdecimals, &sacunit);
decosacvalue = get_volume_units(prefs.decosac, NULL, NULL);
/* Reduce number of decimals from 1 to 0 for bar/min, keep 2 for cuft/min */
if (sacdecimals==1) sacdecimals--;
/* Print the gas consumption next.*/
if (dive->dc.divemode == CCR)
temp = strdup(translate("gettextFromC", "Gas consumption (CCR legs excluded):"));
else
asprintf_loc(&temp, "%s %.*f|%.*f%s/min):", translate("gettextFromC", "Gas consumption (based on SAC"),
sacdecimals, bottomsacvalue, sacdecimals, decosacvalue, sacunit);
put_format(&buf, "<div>\n%s<br/>\n", temp);
free(temp);
/* Print gas consumption: This loop covers all cylinders */
for (int gasidx = 0; gasidx < dive->cylinders.nr; gasidx++) {
double volume, pressure, deco_volume, deco_pressure, mingas_volume, mingas_pressure, mingas_d_pressure, mingas_depth;
const char *unit, *pressure_unit, *depth_unit;
char warning[1000] = "";
char mingas[1000] = "";
cylinder_t *cyl = get_cylinder(dive, gasidx);
if (cyl->cylinder_use == NOT_USED)
continue;
volume = get_volume_units(cyl->gas_used.mliter, NULL, &unit);
deco_volume = get_volume_units(cyl->deco_gas_used.mliter, NULL, &unit);
if (cyl->type.size.mliter) {
int remaining_gas = lrint((double)cyl->end.mbar * cyl->type.size.mliter / 1000.0 / gas_compressibility_factor(cyl->gasmix, cyl->end.mbar / 1000.0));
double deco_pressure_mbar = isothermal_pressure(cyl->gasmix, 1.0, remaining_gas + cyl->deco_gas_used.mliter,
cyl->type.size.mliter) * 1000 - cyl->end.mbar;
deco_pressure = get_pressure_units(lrint(deco_pressure_mbar), &pressure_unit);
pressure = get_pressure_units(cyl->start.mbar - cyl->end.mbar, &pressure_unit);
/* Warn if the plan uses more gas than is available in a cylinder
* This only works if we have working pressure for the cylinder
* 10bar is a made up number - but it seemed silly to pretend you could breathe cylinder down to 0 */
if (cyl->end.mbar < 10000)
snprintf(warning, sizeof(warning), "<br/>\n&nbsp;&mdash; <span style='color: red;'>%s </span> %s",
translate("gettextFromC", "Warning:"),
translate("gettextFromC", "this is more gas than available in the specified cylinder!"));
else
if (cyl->end.mbar / 1000.0 * cyl->type.size.mliter / gas_compressibility_factor(cyl->gasmix, cyl->end.mbar / 1000.0)
< cyl->deco_gas_used.mliter)
snprintf(warning, sizeof(warning), "<br/>\n&nbsp;&mdash; <span style='color: red;'>%s </span> %s",
translate("gettextFromC", "Warning:"),
translate("gettextFromC", "not enough reserve for gas sharing on ascent!"));
/* Do and print minimum gas calculation for last bottom gas, but only for OC mode, */
/* not for recreational mode and if no other warning was set before. */
else
if (lastbottomdp && gasidx == lastbottomdp->cylinderid
&& dive->dc.divemode == OC && decoMode(true) != RECREATIONAL) {
/* Calculate minimum gas volume. */
volume_t mingasv;
mingasv.mliter = lrint(prefs.sacfactor / 100.0 * prefs.problemsolvingtime * prefs.bottomsac
* depth_to_bar(lastbottomdp->depth.mm, dive)
+ prefs.sacfactor / 100.0 * cyl->deco_gas_used.mliter);
/* Calculate minimum gas pressure for cyclinder. */
lastbottomdp->minimum_gas.mbar = lrint(isothermal_pressure(cyl->gasmix, 1.0,
mingasv.mliter, cyl->type.size.mliter) * 1000);
/* Translate all results into correct units */
mingas_volume = get_volume_units(mingasv.mliter, NULL, &unit);
mingas_pressure = get_pressure_units(lastbottomdp->minimum_gas.mbar, &pressure_unit);
mingas_d_pressure = get_pressure_units(lrint((double)cyl->end.mbar + deco_pressure_mbar - lastbottomdp->minimum_gas.mbar), &pressure_unit);
mingas_depth = get_depth_units(lastbottomdp->depth.mm, NULL, &depth_unit);
/* Print it to results */
if (cyl->start.mbar > lastbottomdp->minimum_gas.mbar) {
snprintf_loc(mingas, sizeof(mingas), "<br/>\n&nbsp;&mdash; <span style='color: %s;'>%s</span> (%s %.1fx%s/+%d%s@%.0f%s): "
"%.0f%s/%.0f%s<span style='color: %s;'>/&Delta;:%+.0f%s</span>",
mingas_d_pressure > 0 ? "green" :"red",
translate("gettextFromC", "Minimum gas"),
translate("gettextFromC", "based on"),
prefs.sacfactor / 100.0,
translate("gettextFromC", "SAC"),
prefs.problemsolvingtime,
translate("gettextFromC", "min"),
mingas_depth, depth_unit,
mingas_volume, unit,
mingas_pressure, pressure_unit,
mingas_d_pressure > 0 ? "grey" :"indianred",
mingas_d_pressure, pressure_unit);
} else {
snprintf(warning, sizeof(warning), "<br/>\n&nbsp;&mdash; <span style='color: red;'>%s </span> %s",
translate("gettextFromC", "Warning:"),
translate("gettextFromC", "required minimum gas for ascent already exceeding start pressure of cylinder!"));
}
}
/* Print the gas consumption for every cylinder here to temp buffer. */
if (lrint(volume) > 0) {
asprintf_loc(&temp, translate("gettextFromC", "%.0f%s/%.0f%s of <span style='color: red;'><b>%s</b></span> (%.0f%s/%.0f%s in planned ascent)"),
volume, unit, pressure, pressure_unit, gasname(cyl->gasmix), deco_volume, unit, deco_pressure, pressure_unit);
} else {
asprintf_loc(&temp, translate("gettextFromC", "%.0f%s/%.0f%s of <span style='color: red;'><b>%s</b></span>"),
volume, unit, pressure, pressure_unit, gasname(cyl->gasmix));
}
} else {
if (lrint(volume) > 0) {
asprintf_loc(&temp, translate("gettextFromC", "%.0f%s of <span style='color: red;'><b>%s</b></span> (%.0f%s during planned ascent)"),
volume, unit, gasname(cyl->gasmix), deco_volume, unit);
} else {
asprintf_loc(&temp, translate("gettextFromC", "%.0f%s of <span style='color: red;'><b>%s</b></span>"),
volume, unit, gasname(cyl->gasmix));
}
}
/* Gas consumption: Now finally print all strings to output */
put_format(&buf, "%s%s%s<br/>\n", temp, warning, mingas);
free(temp);
}
put_format(&buf, "</div>\n");
/* For trimix OC dives, if an icd table header and icd data were printed to buffer, then add the ICD table here */
if (!icdtableheader && prefs.show_icd) {
put_string(&icdbuf, "</tbody></table>\n"); // End the ICD table
mb_cstring(&icdbuf);
put_string(&buf, icdbuf.buffer); // ..and add it to the html buffer
if (icdwarning) { // If necessary, add warning
put_format(&buf, "<span style='color: red;'>%s</span> %s",
translate("gettextFromC", "Warning:"),
translate("gettextFromC", "Isobaric counterdiffusion conditions exceeded"));
}
put_string(&buf, "<br/></div>\n");
}
free_buffer(&icdbuf);
/* Print warnings for pO2 */
dp = diveplan->dp;
bool o2warning_exist = false;
enum divemode_t current_divemode;
double amb;
const struct event *evd = NULL;
current_divemode = UNDEF_COMP_TYPE;
if (dive->dc.divemode != CCR) {
while (dp) {
if (dp->time != 0) {
struct gas_pressures pressures;
struct gasmix gasmix = get_cylinder(dive, dp->cylinderid)->gasmix;
current_divemode = get_current_divemode(&dive->dc, dp->time, &evd, &current_divemode);
amb = depth_to_atm(dp->depth.mm, dive);
fill_pressures(&pressures, amb, gasmix, (current_divemode == OC) ? 0.0 : amb * gasmix.o2.permille / 1000.0, current_divemode);
if (pressures.o2 > (dp->entered ? prefs.bottompo2 : prefs.decopo2) / 1000.0) {
const char *depth_unit;
int decimals;
double depth_value = get_depth_units(dp->depth.mm, &decimals, &depth_unit);
if (!o2warning_exist)
put_string(&buf, "<div>\n");
o2warning_exist = true;
asprintf_loc(&temp, translate("gettextFromC", "high pO₂ value %.2f at %d:%02u with gas %s at depth %.*f %s"),
pressures.o2, FRACTION(dp->time, 60), gasname(gasmix), decimals, depth_value, depth_unit);
put_format(&buf, "<span style='color: red;'>%s </span> %s<br/>\n", translate("gettextFromC", "Warning:"), temp);
free(temp);
} else if (pressures.o2 < 0.16) {
const char *depth_unit;
int decimals;
double depth_value = get_depth_units(dp->depth.mm, &decimals, &depth_unit);
if (!o2warning_exist)
put_string(&buf, "<div>");
o2warning_exist = true;
asprintf_loc(&temp, translate("gettextFromC", "low pO₂ value %.2f at %d:%02u with gas %s at depth %.*f %s"),
pressures.o2, FRACTION(dp->time, 60), gasname(gasmix), decimals, depth_value, depth_unit);
put_format(&buf, "<span style='color: red;'>%s </span> %s<br/>\n", translate("gettextFromC", "Warning:"), temp);
free(temp);
}
}
dp = dp->next;
}
}
if (o2warning_exist)
put_string(&buf, "</div>\n");
finished:
free(dive->notes);
dive->notes = detach_cstring(&buf);
#ifdef DEBUG_PLANNER_NOTES
printf("<!DOCTYPE html>\n<html>\n\t<head><title>plannernotes</title><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/></head>\n\t<body>\n%s\t</body>\n</html>\n", dive->notes);
#endif
}
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