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Clean up AIS lat/lon types and formatting.

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This commit is contained in:
Jared Boone 2016-01-15 15:25:32 -08:00
parent 1e92d416c7
commit f3989050e8
4 changed files with 82 additions and 13 deletions
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37
firmware/application/ais_app.cpp
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@ -33,11 +33,34 @@ using namespace portapack;
namespace ais {
namespace format {
static std::string latlon_normalized(const int32_t normalized) {
const int32_t t = (normalized * 5) / 3;
const int32_t degrees = t / (100 * 10000);
const int32_t fraction = std::abs(t) % (100 * 10000);
return to_string_dec_int(degrees) + "." + to_string_dec_int(fraction, 6, '0');
static std::string latlon_abs_normalized(const int32_t normalized) {
const uint32_t normalized_abs = std::abs(normalized);
const uint32_t t = (normalized_abs * 5) / 3;
const uint32_t degrees = t / (100 * 10000);
const uint32_t fraction = t % (100 * 10000);
return to_string_dec_uint(degrees) + "." + to_string_dec_uint(fraction, 6, '0');
}
static std::string latitude(const Latitude value) {
if( value.is_not_available() ) {
return "not available";
} else if( value.is_valid() ) {
const auto normalized = value.normalized();
return latlon_abs_normalized(normalized) + ((normalized < 0) ? "S" : "N");
} else {
return "invalid";
}
}
static std::string longitude(const Longitude value) {
if( value.is_not_available() ) {
return "not available";
} else if( value.is_valid() ) {
const auto normalized = value.normalized();
return latlon_abs_normalized(normalized) + ((normalized < 0) ? "W" : "E");
} else {
return "invalid";
}
}
static std::string mmsi(
@ -379,8 +402,8 @@ void AISRecentEntryDetailView::paint(Painter& painter) {
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, "Lat ", ais::format::latlon_normalized(entry_.last_position.latitude) + "N");
field_rect = draw_field(painter, field_rect, s, "Lon ", ais::format::latlon_normalized(entry_.last_position.longitude) + "E");
field_rect = draw_field(painter, field_rect, s, "Lat ", ais::format::latitude(entry_.last_position.latitude));
field_rect = draw_field(painter, field_rect, s, "Lon ", ais::format::longitude(entry_.last_position.longitude));
field_rect = draw_field(painter, field_rect, s, "Stat", ais::format::navigational_status(entry_.navigational_status));
field_rect = draw_field(painter, field_rect, s, "Rx #", to_string_dec_uint(entry_.received_count));
field_rect = draw_field(painter, field_rect, s, "RoT ", ais::format::rate_of_turn(entry_.last_position.rate_of_turn));