'jalan', 'geomType' => 'LineString', 'fields' => ['nama', 'jenis', 'kategori', 'deskripsi', 'warna'], 'measure' => function (array $geom): array { // LineString: coordinates = [ [lng,lat], ... ] [, $coords] = $geom; return [ 'panjang' => round(line_length($coords), 2), ]; }, ]);