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Merge pull request #701 from arneluehrs/ais-fix

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AIS Class B decoding and display
This commit is contained in:
Erwin Ried 2022-09-05 10:13:54 +02:00 committed by GitHub
commit 36109964a7
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1 changed files with 43 additions and 11 deletions
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44
firmware/application/apps/ais_app.cpp
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@ -82,6 +82,12 @@ static std::string mid(
}
}
static std::string text(const std::string &text) {
size_t end = text.find_last_not_of("@");
return (end == std::string::npos) ? "" : text.substr(0, end + 1);
}
static std::string navigational_status(const unsigned int value) {
switch(value) {
case 0: return "under way w/engine";
@ -195,6 +201,15 @@ void AISRecentEntry::update(const ais::Packet& packet) {
destination = packet.text(302, 20);
break;
case 18:
last_position.timestamp = packet.received_at();
last_position.speed_over_ground = packet.read(46, 10);
last_position.latitude = packet.latitude(85);
last_position.longitude = packet.longitude(57);
last_position.course_over_ground = packet.read(112, 12);
last_position.true_heading = packet.read(124, 9);
break;
case 21:
name = packet.text(43, 20);
last_position.timestamp = packet.received_at();
@ -202,6 +217,23 @@ void AISRecentEntry::update(const ais::Packet& packet) {
last_position.longitude = packet.longitude(164);
break;
case 24:
switch (packet.read(38, 2))
{
case 0:
name = packet.text(40, 20);
break;
case 1:
call_sign = packet.text(90, 7);
break;
default:
break;
}
break;
default:
break;
}
@ -218,9 +250,9 @@ void RecentEntriesTable<AISRecentEntries>::draw(
) {
std::string line = ais::format::mmsi(entry.mmsi) + " ";
if( !entry.name.empty() ) {
line += entry.name;
line += ais::format::text(entry.name);
} else {
line += entry.call_sign;
line += ais::format::text(entry.call_sign);
}
line.resize(target_rect.width() / 8, ' ');
@ -241,7 +273,7 @@ AISRecentEntryDetailView::AISRecentEntryDetailView(NavigationView& nav) {
button_see_map.on_select = [this, &nav](Button&) {
geomap_view = nav.push<GeoMapView>(
entry_.name,
ais::format::text(entry_.name),
0,
GeoPos::alt_unit::METERS,
ais::format::latlon_float(entry_.last_position.latitude.normalized()),
@ -302,9 +334,9 @@ void AISRecentEntryDetailView::paint(Painter& painter) {
field_rect = draw_field(painter, field_rect, s, "MMSI", ais::format::mmsi(entry_.mmsi));
field_rect = draw_field(painter, field_rect, s, "Ctry", ais::format::mid(entry_.mmsi));
field_rect = draw_field(painter, field_rect, s, "Name", entry_.name);
field_rect = draw_field(painter, field_rect, s, "Call", entry_.call_sign);
field_rect = draw_field(painter, field_rect, s, "Dest", entry_.destination);
field_rect = draw_field(painter, field_rect, s, "Name", ais::format::text(entry_.name));
field_rect = draw_field(painter, field_rect, s, "Call", ais::format::text(entry_.call_sign));
field_rect = draw_field(painter, field_rect, s, "Dest", ais::format::text(entry_.destination));
field_rect = draw_field(painter, field_rect, s, "Last", to_string_datetime(entry_.last_position.timestamp));
field_rect = draw_field(painter, field_rect, s, "Pos ", ais::format::latlon(entry_.last_position.latitude, entry_.last_position.longitude));
field_rect = draw_field(painter, field_rect, s, "Stat", ais::format::navigational_status(entry_.navigational_status));