public function parse($remaining_metar, $cavok = false) { $result = $this->consume($remaining_metar); $found = $result['found']; $new_remaining_metar = $result['remaining']; // handle the case where nothing has been found and metar is not cavok if ($found == null && !$cavok) { throw new ChunkDecoderException($remaining_metar, $new_remaining_metar, 'Bad format for clouds information', $this); } // default case: CAVOK or clear sky, no cloud layer $result = array('clouds' => array()); // there are clouds, handle cloud layers and visibility if ($found != null && $found[2] == null) { for ($i = 3; $i <= 15; $i += 4) { if ($found[$i] != null) { $layer = new CloudLayer(); $layer_height = Value::toInt($found[$i + 2]); if ($layer_height !== null) { $layer_height_ft = $layer_height * 100; } else { $layer_height_ft = null; } $layer->setChunk(trim($found[$i])); $layer->setAmount($found[$i + 1])->setBaseHeight(Value::newValue($layer_height_ft, Value::FEET))->setType($found[$i + 3]); $result['clouds'][] = $layer; } } } // return result + remaining metar return array('result' => $result, 'remaining_metar' => $new_remaining_metar); }
public function parse($remaining_metar, $cavok = false) { $result = $this->consume($remaining_metar); $found = $result['found']; $new_remaining_metar = $result['remaining']; // handle the case where nothing has been found if ($found == null) { throw new ChunkDecoderException($remaining_metar, $new_remaining_metar, 'Bad format for visibility information', $this); } if ($found[1] == 'CAVOK') { // cloud and visibility OK $cavok = true; $visibility = null; } elseif ($found[1] == '////') { // information not available $cavok = false; $visibility = null; } else { $cavok = false; $visibility = new Visibility(); if ($found[2] != null) { // icao visibility $visibility->setChunk(trim($found[1])); $visibility->setVisibility(Value::newIntValue($found[2], Value::METER)); if ($found[4] != null) { $visibility->setMinimumVisibility(Value::newIntValue($found[5], Value::METER))->setMinimumVisibilityDirection($found[6]); } $visibility->setNDV($found[3] != null); } else { // us visibility $main = intval($found[7]); $frac_top = intval($found[9]); $frac_bot = intval($found[10]); if ($frac_bot != 0) { $vis_value = $main + $frac_top / $frac_bot; } else { $vis_value = $main; } $visibility->setChunk(trim($found[1])); $visibility->setVisibility(Value::newValue($vis_value, Value::STATUTE_MILE)); } } // return result + remaining metar return array('result' => array('cavok' => $cavok, 'visibility' => $visibility), 'remaining_metar' => $new_remaining_metar); }
public function parse($remaining_metar, $cavok = false) { $result = $this->consume($remaining_metar); $found = $result['found']; $new_remaining_metar = $result['remaining']; // throw error if nothing has been found if ($found == null) { throw new ChunkDecoderException($remaining_metar, $new_remaining_metar, 'Atmospheric pressure not found', $this); } $raw_value = Value::toInt($found[2]); $type = $found[1]; // convert value if needed if ($type == 'A') { $raw_value = $raw_value / 100; } $value = Value::newValue($raw_value, $this->units[$type]); // retrieve found params $result = array('pressure' => $value); // return result + remaining metar return array('result' => $result, 'remaining_metar' => $new_remaining_metar); }