fix(tgu-ops-ui): fix track antimeridian wrap and polygon culling on 2D map

drawTracks: detect antimeridian crossing by comparing consecutive screen X
positions against worldSize/2; use moveTo instead of lineTo on large jumps
so tracks don't draw a horizontal line across the globe.

Tgu2DMapView: replace the heuristic lon-range check (> 300°) with an exact
condition — skip bbox culling when the canvas is wider than the world tile
(entire globe visible) or when topLeft.lon >= bottomRight.lon (viewport
straddles the antimeridian). Both cases previously produced a nonsensical
bbox that hid polygons near ±180°.

drawRequests: remove per-polygon screen-space culling; viewport filtering is
already handled upstream by visiblePolygons, so the redundant check was
incorrectly hiding requests at high zoom levels near canvas edges.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Дмитрий Соловьев
2026-05-31 16:08:20 +03:00
parent 4ab765b0ee
commit 6d1b8e7cde
3 changed files with 14 additions and 13 deletions
@@ -83,18 +83,19 @@ export function Tgu2DMapView({
const polygonIndex = useMemo(() => createPolygonSpatialIndex(activePolygons), [activePolygons]);
const projection = useMemo(() => createMapProjection(view, size), [view, size]);
const visiblePolygons = useMemo(() => {
// When the canvas is wider than the world tile, the entire globe is visible —
// bbox filtering would produce a nonsensical range, so skip it.
// When the viewport crosses the antimeridian, topLeft.lon ends up east of
// bottomRight.lon — same situation, show everything.
const topLeft = projection.unproject({ x: 0, y: 0 });
const bottomRight = projection.unproject({ x: size.width, y: size.height });
const minLon = Math.min(topLeft.lon, bottomRight.lon);
const maxLon = Math.max(topLeft.lon, bottomRight.lon);
if (maxLon - minLon > 300) {
if (size.width >= projection.worldSize || topLeft.lon >= bottomRight.lon) {
return activePolygons;
}
return queryPolygonsByBBox(polygonIndex, {
minLon,
maxLon,
minLon: topLeft.lon,
maxLon: bottomRight.lon,
minLat: Math.min(topLeft.lat, bottomRight.lat),
maxLat: Math.max(topLeft.lat, bottomRight.lat)
});
@@ -12,15 +12,12 @@ export function drawRequests(
ctx: CanvasRenderingContext2D,
polygons: MapPolygon[],
projection: MapProjection,
viewport: { width: number; height: number }
_viewport: { width: number; height: number }
) {
ctx.save();
for (const polygon of polygons) {
if (polygon.points.length < 3) continue;
const screenPoints = polygon.points.map((point) => projection.project(point));
if (!screenPoints.some((point) => point.x >= -32 && point.x <= viewport.width + 32 && point.y >= -32 && point.y <= viewport.height + 32)) {
continue;
}
const color = SURVEY_COLORS[polygon.surveyType ?? ""] ?? DEFAULT_COLOR;
ctx.beginPath();
@@ -8,17 +8,20 @@ export function drawTracks(ctx: CanvasRenderingContext2D, lines: MapLine[], proj
ctx.strokeStyle = "rgba(104, 195, 189, 0.76)";
ctx.lineWidth = 1.2;
const wrapThreshold = projection.worldSize / 2;
for (const line of lines) {
if (line.points.length < 2) continue;
ctx.beginPath();
line.points.forEach((point, index) => {
let prevX: number | undefined;
for (const point of line.points) {
const screen = projection.project(point);
if (index === 0) {
if (prevX === undefined || Math.abs(screen.x - prevX) > wrapThreshold) {
ctx.moveTo(screen.x, screen.y);
} else {
ctx.lineTo(screen.x, screen.y);
}
});
prevX = screen.x;
}
ctx.stroke();
}