findmydevice 히스토리 전체 지점 사용

php/api.php

@@ -428,137 +428,7 @@ if ($historySets) {
     });
 }
 
-function pathDistanceM(array $a, array $b): float
-{
-    $earth = 6371000;
-    $lat1 = deg2rad((float)$a['lat']);
-    $lat2 = deg2rad((float)$b['lat']);
-    $dLat = $lat2 - $lat1;
-    $dLng = deg2rad((float)$b['lng'] - (float)$a['lng']);
-    $h = sin($dLat / 2) ** 2 + cos($lat1) * cos($lat2) * sin($dLng / 2) ** 2;
-    return 2 * $earth * asin(min(1, sqrt($h)));
-}
-
-function pointLineDistanceM(array $point, array $start, array $end): float
-{
-    $latScale = 111320;
-    $lngScale = 111320 * cos(deg2rad((float)$point['lat']));
-    $px = (float)$point['lng'] * $lngScale;
-    $py = (float)$point['lat'] * $latScale;
-    $sx = (float)$start['lng'] * $lngScale;
-    $sy = (float)$start['lat'] * $latScale;
-    $ex = (float)$end['lng'] * $lngScale;
-    $ey = (float)$end['lat'] * $latScale;
-    $dx = $ex - $sx;
-    $dy = $ey - $sy;
-
-    if ($dx == 0.0 && $dy == 0.0) {
-        return sqrt(($px - $sx) ** 2 + ($py - $sy) ** 2);
-    }
-
-    $t = max(0, min(1, (($px - $sx) * $dx + ($py - $sy) * $dy) / ($dx ** 2 + $dy ** 2)));
-    $cx = $sx + $t * $dx;
-    $cy = $sy + $t * $dy;
-
-    return sqrt(($px - $cx) ** 2 + ($py - $cy) ** 2);
-}
-
-function douglasPeucker(array $points, float $epsilon): array
-{
-    $count = count($points);
-    if ($count <= 2) {
-        return $points;
-    }
-
-    $maxDistance = 0.0;
-    $index = 0;
-    $last = $count - 1;
-    for ($i = 1; $i < $last; $i++) {
-        $distance = pointLineDistanceM($points[$i], $points[0], $points[$last]);
-        if ($distance > $maxDistance) {
-            $index = $i;
-            $maxDistance = $distance;
-        }
-    }
-
-    if ($maxDistance > $epsilon) {
-        $left = douglasPeucker(array_slice($points, 0, $index + 1), $epsilon);
-        $right = douglasPeucker(array_slice($points, $index), $epsilon);
-        return array_merge(array_slice($left, 0, -1), $right);
-    }
-
-    return [$points[0], $points[$last]];
-}
-
-function smoothPath(array $path): array
-{
-    $count = count($path);
-    if ($count < 5) {
-        return $path;
-    }
-
-    $smoothed = [];
-    for ($i = 0; $i < $count; $i++) {
-        if ($i === 0 || $i === $count - 1) {
-            $smoothed[] = $path[$i];
-            continue;
-        }
-
-        $prev = $path[$i - 1];
-        $cur = $path[$i];
-        $next = $path[$i + 1];
-        $smoothed[] = [
-            'lat' => ((float)$prev['lat'] + ((float)$cur['lat'] * 2) + (float)$next['lat']) / 4,
-            'lng' => ((float)$prev['lng'] + ((float)$cur['lng'] * 2) + (float)$next['lng']) / 4,
-            'time' => $cur['time'],
-            'accuracy' => $cur['accuracy'] ?? null,
-            'source' => $cur['source'] ?? null,
-        ];
-    }
-
-    return $smoothed;
-}
-
-function renderPath(array $path, int $renderLimit = 1200): array
-{
-    $count = count($path);
-    if ($count <= 2) {
-        return $path;
-    }
-
-    $filtered = [];
-    $last = null;
-    foreach ($path as $point) {
-        if ($last === null || pathDistanceM($last, $point) >= 8) {
-            $filtered[] = $point;
-            $last = $point;
-        }
-    }
-    if (count($filtered) < 2) {
-        $filtered = [$path[0], $path[$count - 1]];
-    }
-
-    $epsilon = 6.0;
-    $render = $filtered;
-    do {
-        $render = douglasPeucker($filtered, $epsilon);
-        $epsilon *= 1.45;
-    } while (count($render) > $renderLimit && $epsilon < 500);
-
-    if (count($render) > $renderLimit) {
-        $sampled = [];
-        $lastIndex = count($render) - 1;
-        for ($i = 0; $i < $renderLimit; $i++) {
-            $sampled[] = $render[(int)round($i * $lastIndex / max(1, $renderLimit - 1))];
-        }
-        $render = $sampled;
-    }
-
-    return smoothPath($render);
-}
-
 $historyRawCount = count($path);
-$path = renderPath($path);
 
 $lang = $_GET['lang'] ?? 'en';