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Sternhimmel läd jetzt sauber

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Eskimue
2026-04-01 08:54:59 +02:00
parent 0d703ba9c1
commit b4a974b67a
1 changed files with 72 additions and 31 deletions
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public/sternenhimmel.php
+72 -31
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@@ -6,12 +6,12 @@ ini_set('memory_limit', '512M');
session_start();
$loggedIn = isset($_SESSION['user_id']);
$starsApiRequested = isset($_GET['stars_api']) && (string)$_GET['stars_api'] === '1';
$pageTitle = 'Sternenhimmel - AstroTools';
$bodyClass = 'sternenhimmel-page';
$constellationData = ['constellations' => []];
$constellationDataError = null;
$starData = [];
$starDataError = null;
$messierData = [];
$messierDataError = null;
@@ -105,31 +105,41 @@ try {
static fn(array $a, array $b): int => strcmp($a['id'], $b['id'])
);
$constellationData['constellations'] = array_values($constellations);
if ($starsApiRequested) {
$starData = [];
$starStmt = $planetariumPdo->query(
"SELECT hip, proper, bayer, con, spect, mag, ci, rarad, decrad
FROM star_hipparcos
WHERE mag IS NOT NULL
AND rarad IS NOT NULL
AND decrad IS NOT NULL
AND mag <= " . (float)$starDbMagLimit . "
ORDER BY mag ASC"
);
while ($row = $starStmt->fetch()) {
$starData[] = [
'hip' => $row['hip'] !== null ? (int)$row['hip'] : null,
'proper' => trim((string)($row['proper'] ?? '')),
'bayer' => trim((string)($row['bayer'] ?? '')),
'con' => trim((string)($row['con'] ?? '')),
'spect' => trim((string)($row['spect'] ?? '')),
'ra' => (float)$row['rarad'],
'dec' => (float)$row['decrad'],
'mag' => (float)$row['mag'],
'ci' => $row['ci'] !== null ? (float)$row['ci'] : null,
];
}
$starStmt = $planetariumPdo->query(
"SELECT hip, proper, bayer, con, spect, mag, ci, rarad, decrad
FROM star_hipparcos
WHERE mag IS NOT NULL
AND rarad IS NOT NULL
AND decrad IS NOT NULL
AND mag <= " . (float)$starDbMagLimit . "
ORDER BY mag ASC"
);
while ($row = $starStmt->fetch()) {
$starData[] = [
'hip' => $row['hip'] !== null ? (int)$row['hip'] : null,
'proper' => trim((string)($row['proper'] ?? '')),
'bayer' => trim((string)($row['bayer'] ?? '')),
'con' => trim((string)($row['con'] ?? '')),
'spect' => trim((string)($row['spect'] ?? '')),
'ra' => (float)$row['rarad'],
'dec' => (float)$row['decrad'],
'mag' => (float)$row['mag'],
'ci' => $row['ci'] !== null ? (float)$row['ci'] : null,
];
header('Content-Type: application/json; charset=utf-8');
echo json_encode([
'ok' => true,
'stars' => $starData,
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
exit;
}
$constellationData['constellations'] = array_values($constellations);
$messierStmt = $planetariumPdo->query(
"SELECT messier, name, object_type_abrev, ra_deg, dec_deg, v_mag, major_axis
FROM dso_objects
@@ -177,6 +187,15 @@ try {
}
}
} catch (Throwable $e) {
if ($starsApiRequested) {
header('Content-Type: application/json; charset=utf-8');
http_response_code(500);
echo json_encode([
'ok' => false,
'error' => $e->getMessage(),
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
exit;
}
$constellationDataError = $e->getMessage();
$starDataError = $e->getMessage();
$messierDataError = $e->getMessage();
@@ -190,10 +209,6 @@ $constellationDataErrorJson = json_encode(
$constellationDataError,
JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES
);
$starDataJson = json_encode(
$starData,
JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES
);
$starDataErrorJson = json_encode(
$starDataError,
JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES
@@ -549,7 +564,7 @@ let showStars = true;
// ═══════════════════════════════════════════════════════════════════════════════
const EMBEDDED_CONSTELLATION_DATA = <?php echo $constellationDataJson ?: '{"constellations":[]}'; ?>;
const EMBEDDED_CONSTELLATION_ERROR = <?php echo $constellationDataErrorJson ?: 'null'; ?>;
const EMBEDDED_STAR_DATA = <?php echo $starDataJson ?: '[]'; ?>;
const STAR_DATA_URL = 'sternenhimmel.php?stars_api=1';
const EMBEDDED_STAR_ERROR = <?php echo $starDataErrorJson ?: 'null'; ?>;
const EMBEDDED_MESSIER_DATA = <?php echo $messierDataJson ?: '[]'; ?>;
const EMBEDDED_MESSIER_ERROR = <?php echo $messierDataErrorJson ?: 'null'; ?>;
@@ -1805,8 +1820,7 @@ function finalizeStarLoad() {
if (AUTO_IMG) autoExportPng();
}
function loadEmbeddedStarsAsync() {
const source = Array.isArray(EMBEDDED_STAR_DATA) ? EMBEDDED_STAR_DATA : [];
function processStarBatch(source) {
const total = source.length;
const chunkSize = total > 60000 ? 1800 : 1200;
let index = 0;
@@ -1862,6 +1876,27 @@ function loadEmbeddedStarsAsync() {
window.setTimeout(processChunk, 0);
}
async function loadEmbeddedStarsAsync() {
updateStarLoadingUi(0, 1);
if (starLoadingNote) starLoadingNote.textContent = 'Sternkatalog wird vom Server geladen ...';
const response = await fetch(STAR_DATA_URL, {
headers: { 'Accept': 'application/json' },
cache: 'no-store'
});
if (!response.ok) {
throw new Error('Sternkatalog konnte nicht geladen werden (HTTP ' + response.status + ')');
}
const payload = await response.json();
if (!payload || payload.ok !== true || !Array.isArray(payload.stars)) {
throw new Error(payload && payload.error ? payload.error : 'Ungültige Sternkatalog-Antwort');
}
processStarBatch(payload.stars);
}
// Manueller Fallback über Datei-Dialog
document.getElementById('fileInput').addEventListener('change', function(e) {
const file = e.target.files[0];
@@ -2017,7 +2052,13 @@ syncMessierMagLimitUi();
setLocation(LAT_DEG, LON_DEG, ELEV_M, HEADER_LOCATION.name || 'Standard-Standort', HEADER_LOCATION.id ?? '');
resize();
window.requestAnimationFrame(() => {
window.setTimeout(loadEmbeddedStarsAsync, 40);
window.setTimeout(() => {
loadEmbeddedStarsAsync().catch(err => {
console.warn('Sterndaten aus der Datenbank nicht geladen:', err);
if (starLoadingStatus) starLoadingStatus.textContent = 'Fehler';
if (starLoadingNote) starLoadingNote.textContent = err && err.message ? err.message : 'Sternkatalog konnte nicht geladen werden';
});
}, 40);
});
}); // end window.onload