Leaflet中使用Leaflet.draw插件實現圖形交互繪制和編輯(修改圖形坐標點)


場景

Leaflet中使用Leaflet.Pin插件實現圖層要素編輯效果:

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/122466785

上面也使用了draw插件實現要素編輯,這里進行補充。

插件地址:

https://github.com/Leaflet/Leaflet.draw

下載插件,引入draw插件所需的js、css和image

    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css" />
    <link rel="stylesheet" href="./css/leaflet.draw.css" />

    <script type="text/javascript" src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"></script>
    <script type="text/javascript" src="./js/leaflet.draw.js"></script>

注:

博客:
https://blog.csdn.net/badao_liumang_qizhi
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實現

1、修改css中圖片的路徑

 

 

 

2、添加繪制圖層與繪制控件

 

       //添加繪制圖層
        var drawnItems = new L.FeatureGroup();
        map.addLayer(drawnItems);
        //添加繪制控件
        var drawControl = new L.Control.Draw({
            draw:{
                //繪制線
                polyline:true,
                //繪制多邊形
                polygon:true,
                //繪制矩形
                rectangle:true,
                //繪制圓
                circle:true,
                //繪制標注
                marker:true,
                //繪制圓形標注
                circlemarker:true
            },
            edit:{
                //繪制圖層
                featureGroup:drawnItems,
                //圖形編輯控件
                edit:true,
                //圖形刪除控件
                remove:true,
            }
        });

3、添加繪制結束事件

        //繪制事件
        map.on(L.Draw.Event.CREATED, function(e){
           
            var type = e.layerType,
            //獲取繪制圖層
            drawlayer = e.layer;
            if(type === 'marker'){
                drawlayer.bindPopup('A popup!');
            }
            drawnItems.addLayer(drawlayer);
        });

4、完整代碼

<!doctype html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>leaflet-draw修改圖形坐標點</title>
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css" />
    <link rel="stylesheet" href="./css/leaflet.draw.css" />
    <style>
        html,
        body,
        #map {
            padding: 0;
            margin: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }
    </style>
</head>

<body >
    <div id="map"></div>
    <script type="text/javascript" src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"></script>
    <script type="text/javascript" src="./js/leaflet.draw.js"></script>
    <script type="text/javascript">

        var map = L.map('map').setView([36.09, 120.35], 13);
        var tiles =
            L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
                attribution: ''
            });
        tiles.addTo(map);

        //添加繪制圖層
        var drawnItems = new L.FeatureGroup();
        map.addLayer(drawnItems);
        //添加繪制控件
        var drawControl = new L.Control.Draw({
            draw:{
                //繪制線
                polyline:true,
                //繪制多邊形
                polygon:true,
                //繪制矩形
                rectangle:true,
                //繪制圓
                circle:true,
                //繪制標注
                marker:true,
                //繪制圓形標注
                circlemarker:true
            },
            edit:{
                //繪制圖層
                featureGroup:drawnItems,
                //圖形編輯控件
                edit:true,
                //圖形刪除控件
                remove:true,
            }
        });
       
        //添加繪制控件
        map.addControl(drawControl);
        //繪制事件
        map.on(L.Draw.Event.CREATED, function(e){
           
            var type = e.layerType,
            //獲取繪制圖層
            drawlayer = e.layer;
            if(type === 'marker'){
                drawlayer.bindPopup('A popup!');
            }
            drawnItems.addLayer(drawlayer);
        });
    </script>
</body>

</html>

 

5、效果

 

 


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