Javascript 传单不显示标记
我试图在我的应用程序中用带有传单的标记来可视化一个点。 为此,我正在构建一个功能,该功能正在测试网站()上运行 如果我使用L.marker和addTo(map),那么与传单的集成是有效的,但与geojson的集成是无效的 application.html.erbJavascript 传单不显示标记,javascript,ruby-on-rails,leaflet,geojson,Javascript,Ruby On Rails,Leaflet,Geojson,我试图在我的应用程序中用带有传单的标记来可视化一个点。 为此,我正在构建一个功能,该功能正在测试网站()上运行 如果我使用L.marker和addTo(map),那么与传单的集成是有效的,但与geojson的集成是无效的 application.html.erb <link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css" integrity="sha512-xwE/Az9zrjBIphA
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css"
integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ=="
crossorigin=""/>
<script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js"
integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew=="
crossorigin=""></script>
<style>
#map {height: 400px}
</style>
<div id=map></div>
<script>
var lng = '<%= @divesite.longitude %>';
var lat = '<%= @divesite.latitude %>';
var popup = '<b><%= @divesite.name %></b><br><%= @divesite.description %>';
var geojson = '<%= @geojson %>';
var map = L.map('map').setView([lat, lng], 5);
L.tileLayer('https://api.maptiler.com/maps/topo/{z}/{x}/{y}.png?key=WuMlitiPNaB5uEkyEiZc').addTo(map);
// var marker1 = L.marker([lat, lng]).addTo(map);
// marker1.bindPopup(popup);
function onEachFeature(feature, layer) {
var popupContent = "<p> "+feature.properties.name + "</p>";
if (feature.properties && feature.properties.popupContent) {
popupContent += feature.properties.popupContent;
}
layer.bindPopup(popupContent);
};
L.geoJson(geojson,{onEachFeature: onEachFeature}).addTo(map);
</script>
#地图{高度:400px}
\u form.html.erb
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css"
integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ=="
crossorigin=""/>
<script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js"
integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew=="
crossorigin=""></script>
<style>
#map {height: 400px}
</style>
<div id=map></div>
<script>
var lng = '<%= @divesite.longitude %>';
var lat = '<%= @divesite.latitude %>';
var popup = '<b><%= @divesite.name %></b><br><%= @divesite.description %>';
var geojson = '<%= @geojson %>';
var map = L.map('map').setView([lat, lng], 5);
L.tileLayer('https://api.maptiler.com/maps/topo/{z}/{x}/{y}.png?key=WuMlitiPNaB5uEkyEiZc').addTo(map);
// var marker1 = L.marker([lat, lng]).addTo(map);
// marker1.bindPopup(popup);
function onEachFeature(feature, layer) {
var popupContent = "<p> "+feature.properties.name + "</p>";
if (feature.properties && feature.properties.popupContent) {
popupContent += feature.properties.popupContent;
}
layer.bindPopup(popupContent);
};
L.geoJson(geojson,{onEachFeature: onEachFeature}).addTo(map);
</script>
var lng=“”;
var lat='';
var popup='
';
var geojson='';
var map=L.map('map').setView([lat,lng],5);
L.tileLayer('https://api.maptiler.com/maps/topo/{z} /{x}/{y}.png?key=WuMlitiPNaB5uEkyEiZc').addTo(map);
//var marker1=L.标记([lat,lng])添加到(map);
//标记1.bindPopup(弹出窗口);
功能onEachFeature(功能,图层){
var popupContent=“”+feature.properties.name+””;
if(feature.properties&&feature.properties.popupContent){
popupContent+=feature.properties.popupContent;
}
layer.bindPopup(弹出内容);
};
geoJson(geoJson,{onEachFeature:onEachFeature}).addTo(map);
我尝试了几种方法来编写我找到的代码,但找不到有效的方法。请帮助:)您的geojson是一个字符串,您必须将其解析为一个对象
var hospitals = JSON.parse(geojson):
L.geoJson(hospitals ,{onEachFeature: onEachFeature}).addTo(map);
更新
要解码html,可以使用以下命令:(thx到@ghybs)
您的geojson是一个字符串,您必须将其解析为一个对象
var hospitals = JSON.parse(geojson):
L.geoJson(hospitals ,{onEachFeature: onEachFeature}).addTo(map);
更新
要解码html,可以使用以下命令:(thx到@ghybs)
所以,这是有效的:)
功能特性(特性,图层){
var popupContent=“”+feature.properties.name+””;
if(feature.properties&&feature.properties.popupContent){
popupContent+=feature.properties.popupContent;
}
layer.bindPopup(弹出内容);
};
函数htmlDecode(输入){
var doc=new DOMParser().parseFromString(输入,“text/html”);
返回doc.documentElement.textContent;
};
var sites=JSON.parse(htmlDecode(“”));
geoJson(站点,{onEachFeature:onEachFeature}).addTo(地图);
我刚刚修正了一些拼写错误-感谢@Falke Design和@ghybs的帮助所以,这是有效的:)
功能特性(特性,图层){
var popupContent=“”+feature.properties.name+””;
if(feature.properties&&feature.properties.popupContent){
popupContent+=feature.properties.popupContent;
}
layer.bindPopup(弹出内容);
};
函数htmlDecode(输入){
var doc=new DOMParser().parseFromString(输入,“text/html”);
返回doc.documentElement.textContent;
};
var sites=JSON.parse(htmlDecode(“”));
geoJson(站点,{onEachFeature:onEachFeature}).addTo(地图);
我刚刚修正了几个输入错误-感谢@Falke Design和@ghybs的帮助你确定geojson变量不是空的吗
console.log(geojson)
Yes,I am:)通过一个警报使其可见:geojson[{“类型”:“特征”,“几何体”:{“类型”:“点”,“坐标”:[30.0,34.0]},“属性”:{“devisite_id”:8,“名称”:“塞浦路斯,拉纳卡,泽诺比亚”,“在地图上显示”:true}}]您确定geojson变量不是空的吗console.log(geojson)
Yes,I am:)通过一个警报使其可见:geojson[{“类型”:“特征”,“几何体”:{“类型”:“点”,“坐标”:[30.0,34.0]},“属性”:{“潜水id”:8,“名称”:“塞浦路斯,拉纳卡,泽诺比亚”,“在地图上显示”:true}]