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feat: add bounded offline map screen

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This commit is contained in:
torlando-agent[bot]
2026-08-07 01:31:17 +00:00
parent b8d58f4bd1
commit c8ba2b5ba3
16 changed files with 1713 additions and 2 deletions
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lib/tdeck_ui/UI/LXMF/MapViewModel.cpp
+18 -1
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@@ -6,6 +6,9 @@ namespace Pyxis {
namespace MapView {
namespace {
const double EARTH_CIRCUMFERENCE_METERS = 40075016.68557849;
const double DEGREES_TO_RADIANS = 0.017453292519943295;
bool validLocation(const Telemetry::LocationTelemetry& location) {
return location.latitude_e6 >= -90000000 &&
location.latitude_e6 <= 90000000 &&
@@ -49,8 +52,9 @@ void appendMarker(const Telemetry::LocationTelemetry& location,
std::uint32_t zoom,
Frame& output) {
MapProjection::MarkerProjection projected{};
const MapProjection::GeoPoint point = pointFromLocation(location);
if (MapProjection::projectMarker(
pointFromLocation(location), viewport, zoom, projected) !=
point, viewport, zoom, projected) !=
MapProjection::Status::OK ||
!projected.visible) {
return;
@@ -62,6 +66,19 @@ void appendMarker(const Telemetry::LocationTelemetry& location,
marker.screen_y = projected.screen_y;
marker.has_approx_radius = has_approx_radius;
marker.approx_radius_meters = approx_radius_meters;
marker.approx_radius_pixels = 0.0;
if (has_approx_radius && approx_radius_meters != 0U) {
const double world_pixels = static_cast<double>(MapProjection::TILE_SIZE) *
static_cast<double>(MapProjection::tileCount(zoom));
const double meters_per_pixel =
std::cos(MapProjection::clampLatitude(point.latitude) *
DEGREES_TO_RADIANS) *
EARTH_CIRCUMFERENCE_METERS / world_pixels;
if (meters_per_pixel > 0.0 && std::isfinite(meters_per_pixel)) {
marker.approx_radius_pixels =
static_cast<double>(approx_radius_meters) / meters_per_pixel;
}
}
}
} // namespace