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Add altitude-based color coding for map markers in adsb (#3004)

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* Add altitude-based color coding for map markers in adsb
This commit is contained in:
Totoo
2026-02-19 20:50:49 +01:00
committed by GitHub
parent 6498f5a1b2
commit 0685fb7a9f
4 changed files with 50 additions and 4 deletions
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firmware/application/apps/ui_adsb_rx.cpp
+44
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@@ -320,6 +320,47 @@ void ADSBRxDetailsView::update(const AircraftRecentEntry& entry) {
}
}
void ADSBRxDetailsView::get_altitude_color(int32_t alt_ft, uint8_t* r, uint8_t* g, uint8_t* b) {
static const struct {
int32_t alt;
uint8_t r, g, b;
} stops[] = {
{0, 220, 220, 220}, // 0 ft: White/Grey (Ground)
{2000, 255, 255, 0}, // 2k ft: Yellow
{10000, 0, 255, 0}, // 10k ft: Green
{20000, 0, 255, 255}, // 20k ft: Cyan
{30000, 60, 60, 255}, // 30k ft: Blue (Lightened for visibility on Black)
{40000, 255, 0, 255} // 40k+ ft: Magenta
};
if (alt_ft <= stops[0].alt) {
*r = stops[0].r;
*g = stops[0].g;
*b = stops[0].b;
return;
}
const int count = sizeof(stops) / sizeof(stops[0]);
if (alt_ft >= stops[count - 1].alt) {
*r = stops[count - 1].r;
*g = stops[count - 1].g;
*b = stops[count - 1].b;
return;
}
for (int i = 0; i < count - 1; i++) {
if (alt_ft < stops[i + 1].alt) {
float t = (float)(alt_ft - stops[i].alt) / (stops[i + 1].alt - stops[i].alt);
*r = (uint8_t)(stops[i].r + (stops[i + 1].r - stops[i].r) * t);
*g = (uint8_t)(stops[i].g + (stops[i + 1].g - stops[i].g) * t);
*b = (uint8_t)(stops[i].b + (stops[i + 1].b - stops[i].b) * t);
return;
}
}
// Fallback: in case no interval matched, default to ground color.
*r = stops[0].r;
*g = stops[0].g;
*b = stops[0].b;
}
void ADSBRxDetailsView::clear_map_markers() {
if (geomap_view_)
geomap_view_->clear_markers();
@@ -335,6 +376,9 @@ bool ADSBRxDetailsView::add_map_marker(const AircraftRecentEntry& entry) {
marker.lat = entry.pos.latitude;
marker.angle = entry.velo.heading;
marker.tag = get_map_tag(entry);
uint8_t r, g, b;
get_altitude_color(entry.pos.altitude, &r, &g, &b);
marker.color = Color(r, g, b);
auto markerStored = geomap_view_->store_marker(marker);
return markerStored == MARKER_STORED;