将线性特征从PostGIS添加到传单上

Question

我成功地将PostGIS点特征添加到Leaflet中，但我在将PostGIS的线性特征添加到Leaflet中时遇到了麻烦。当我使用以下功能时，我能够在警报窗口中看到关系数据 alert(response)但我似乎无法让它在地图上绘制。是否有一个特殊的方式，我需要符号化的线特征？

以下是我正在使用的代码（对于PostGIS点特征来说，这很好）。

//PHP    
<?php
    $dsn = "pgsql:host=xxxxx;dbname=postgres;port=5432";
    $opt = [
        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        PDO::ATTR_EMULATE_PREPARES   => false
    ];
    $pdo = new PDO($dsn, 'postgres', 'xxxxxx', $opt);

    $result = $pdo->query("SELECT *, ST_AsGeoJSON(geom,5) AS geojson FROM testlyr");
    $features=[];
    foreach($result AS $row) {
        unset($row['geom']);
        $geometry=$row['geojson']=json_decode($row['geojson']);
        unset($row['geojson']);
        $feature=["type"=>"Feature", "geometry"=>$geometry, "properties"=>$row];
        array_push($features, $feature);
    }
$featureCollection=["type"=>"FeatureCollection", "features"=>$features];
echo json_encode($featureCollection);

?>

_

//JS
function mylineStyle(feature) {
  return {
    color: "#3388ff",
    weight: 10,
  };
}

$.ajax({
  url: "load_attractions.php",
  success: function (response) {
    jsnCities = JSON.parse(response);
    lyrCities = L.geoJSON(jsnCities, { style: mylineStyle }).addTo(map);
  },
  error: function (xhr, status, error) {
    alert("ERROR: " + error);
  },
});

-

//Output of console.log() JSON response 
{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"MultiLineString","coordinates":[[[-10616750.46022,3451527.81212],[-10616193.63558,3451197.53649],[-10615872.3906,3451772.85539],[-10615154.94348,3451495.84996],[-10615283.44147,3451080.34194],[-10615626.10278,3450696.79619]]]},"properties":{"id":1}}]}

Answer 1

Ivan Sanchez找出了坐标不是规格要求的latlong。现在工作完美了!