【发布时间】：2021-04-18 22:19:27
【问题描述】：
我正在尝试制作一个使用传单显示地图的网络应用程序，用户应该能够在地图上绘制和编辑多边形，并且他们应该能够命名他们创建的每个多边形。
我想在创建多边形时打开一个弹出窗口，询问名称，然后将其设置为 geojson 功能中的属性。
我尝试按照此示例进行操作 Leaflet popup form，但无法使其与传单绘制创建事件一起使用。
这就是我得到的。
// Map center
var center = [-32.692825, -62.104689];
// Map creation
var map = L.map('map').setView(center, 14);
// Map tile layer
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
maxZoom: 19,
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);
// Initialise the FeatureGroup to store editable layers
var editableLayers = new L.FeatureGroup();
map.addLayer(editableLayers);
// Draw plugin options
var drawPluginOptions = {
position: 'topleft',
draw: {
polygon: {
allowIntersection: false, // Restricts shapes to simple polygons
drawError: {
color: '#e1e100', // Color the shape will turn when intersects
message: '<strong>Oh snap!<strong> you can\'t draw that!' // Message that will show when intersect
},
shapeOptions: {
color: '#97009c'
}
},
// disable toolbar item by setting it to false
polyline: false,
circle: false, // Turns off this drawing tool
rectangle: false,
marker: false,
},
edit: {
featureGroup: editableLayers,
polygon: {
allowIntersection: false
} //REQUIRED!!
}
};
// Initialise the draw control and pass it the FeatureGroup of editable layers
var drawControl = new L.Control.Draw(drawPluginOptions);
map.addControl(drawControl);
var editableLayers = new L.FeatureGroup();
map.addLayer(editableLayers);
// draw created event handler
function polygonCreateHandler(e) {
var type = e.layerType;
var layer = e.layer;
if (type != 'polygon') {
alert("ESTO NO ES UN POLIGONO");
return;
}
editableLayers.addLayer(layer);
}
// draw created event
map.on('draw:created', function(e) {
polygonCreateHandler(e);
});
//Ignore this
/*jshint multistr: true */
var template = '<form id="popup-form">\
<label for="input-speed">New speed:</label>\
<input id="input-speed" class="popup-input" type="number" />\
<button id="button-submit" type="button">Save Changes</button>\
</form>';
/*
** fetch geojson example
let geojson_url = "https://raw.githubusercontent.com/delineas/leaflet-flyto-webpack-bulma/master/src/data/arboles_singulares_en_espacios_naturales.geojson"
fetch(
geojson_url
).then(
res => res.json()
).then(
data => {
let geojsonlayer = L.geoJson(data, {
onEachFeature: function(feature, layer) {
layer.bindPopup(feature.properties['arbol_nombre'])
layer.setIcon(treeMarker)
}
}).addTo(map)
map.fitBounds(geojsonlayer.getBounds())
}
)
** layer polygon example
var geojson_msjz_polygon = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": { "name": "Test Distrito electoral"},
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-62.103266716003425,
-32.687209099455636
],
[
-62.13047504425048,
-32.68211618935444
],
[
-62.133564949035645,
-32.693746380985395
],
[
-62.106142044067376,
-32.698838627713116
],
[
-62.103266716003425,
-32.687209099455636
]
]
]
}
}
]
};
let geojsonlayer = L.geoJson(geojson_msjz_polygon, {
onEachFeature: function(feature, layer) {
let text = L.tooltip({
permanent: true,
direction: 'center',
className: 'text'
})
.setContent(feature.properties.name)
.setLatLng(layer.getBounds().getCenter());
text.addTo(map);
}
}).addTo(map);
map.fitBounds(geojsonlayer.getBounds())
*/#map {
height: 98vh;
width: 100hw;
}
body {
margin: 0;
}
html,
body,
#leaflet {
height: 100%;
}
.popup-table {
width: 100%;
}
.popup-table-row {
background-color: grey;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-beta.2.rc.2/leaflet.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-beta.2.rc.2/leaflet.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet.draw/0.2.3/leaflet.draw.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.draw/0.2.3/leaflet.draw.css" rel="stylesheet" />
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标签： javascript html input leaflet openstreetmap