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量算工具.html
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量算工具.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>量算工具</title>
<link rel="stylesheet" href="css/mapbox-gl.css" type="text/css"/>
<script type="text/javascript" src="js/mapbox-gl.js"></script>
<link rel="stylesheet" href="css/mapbox-gl-draw.css">
<script type="text/javascript" src="js/mapbox-gl-draw.js"></script>
<script type="text/javascript" src="js/turf.min.js"></script>
<style type="text/css">
html, body {
margin: 0px;
height: 100%;
width: 100%;
}
#map {
width: 100%;
height: 100%;
}
#controls{
position: absolute;
margin-top: -720px;
z-index: 10;
/* left: 20px;
bottom: 10px; */
width: 10%;
background: #9febef;
}
</style>
</head>
<body>
<div id="map"></div>
<div id='area_calculate' class='area-container'>
</div>
<div id="controls">
<div id="resultD"></div>
<input type="button" value="测距" onclick="distanceMea()">
<input type="button" value="测面" onclick="areaMea()">
<input type="button" value="清除" onclick="deleteAll()">
<input type="button" value="关闭测绘控件" onclick="deactivateCtrl()">
<input type="button" value="激活测绘控件" onclick="activateCtrl()">
</div>
</body>
<script>
var monument = [118.777283,32.057966];
var map = new mapboxgl.Map({
container: 'map', // container id
style: { // stylesheet location
"version": 8,
"sources": {},
"layers": []
},
center: [118.777283,32.057966], // starting position [lng, lat]
zoom: 8 ,// starting zoom
center: monument,
});
map.on("load",function(){
var arcgis_wmts ='http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer/WMTS?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=ChinaOnlineCommunity&STYLE=default&TILEMATRIXSET=default028mm&TILEMATRIX={z}&TILEROW={y}&TILECOL={x}&FORMAT=image/png'
var arcgis_layer = {
"id": "arcgis_wmts",
"type": "raster",
"source": {
"type": "raster",
"tiles": [arcgis_wmts],
"zoomOffset": 0,//wmts Capabilities信息中TileMatrix第一个对应的实际多少级
"tileSize": 256
}
};
map.addLayer(arcgis_layer);
})
//添加绘画工具
var draw = new MapboxDraw({
displayControlsDefault: false,
styles:[
{
'id': 'highlight-active-points',
'type': 'circle',
'filter': ['all',
['==', '$type', 'Point'],
['==', 'meta', 'feature'],
['==', 'active', 'true']],
'paint': {
'circle-radius': 7,
'circle-color': '#000000'
}
},
{
'id': 'points-are-blue',
'type': 'circle',
'filter': ['all',
['==', '$type', 'Point'],
['==', 'meta', 'feature'],
['==', 'active', 'false']],
'paint': {
'circle-radius': 5,
'circle-color': '#000088'
}
},
// ACTIVE (being drawn)
// line stroke
{
"id": "gl-draw-line",
"type": "line",
"filter": ["all", ["==", "$type", "LineString"], ["!=", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#D20C0C",
// "line-dasharray": [0.2, 2],
"line-width": 2
}
},
// polygon fill
{
"id": "gl-draw-polygon-fill",
"type": "fill",
"filter": ["all", ["==", "$type", "Polygon"], ["!=", "mode", "static"]],
"paint": {
"fill-color": "#D20C0C",
"fill-outline-color": "#D20C0C",
"fill-opacity": 0.1
}
},
// polygon outline stroke
// This doesn't style the first edge of the polygon, which uses the line stroke styling instead
{
"id": "gl-draw-polygon-stroke-active",
"type": "line",
"filter": ["all", ["==", "$type", "Polygon"], ["!=", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#D20C0C",
"line-dasharray": [0.2, 2],
"line-width": 2
}
},
// vertex point halos
{
"id": "gl-draw-polygon-and-line-vertex-halo-active",
"type": "circle",
"filter": ["all", ["==", "meta", "vertex"], ["==", "$type", "Point"], ["!=", "mode", "static"]],
"paint": {
"circle-radius": 7,
"circle-color": "#FFF"
}
},
// vertex points
{
"id": "gl-draw-polygon-and-line-vertex-active",
"type": "circle",
"filter": ["all", ["==", "meta", "vertex"], ["==", "$type", "Point"], ["!=", "mode", "static"]],
"paint": {
"circle-radius": 5,
"circle-color": "#D20C0C"
}
},
// INACTIVE (static, already drawn)
// line stroke
{
"id": "gl-draw-line-static",
"type": "line",
"filter": ["all", ["==", "$type", "LineString"], ["==", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#000",
"line-width": 3
}
},
// polygon fill
{
"id": "gl-draw-polygon-fill-static",
"type": "fill",
"filter": ["all", ["==", "$type", "Polygon"], ["==", "mode", "static"]],
"paint": {
"fill-color": "#000",
"fill-outline-color": "#000",
"fill-opacity": 0.1
}
},
// polygon outline
{
"id": "gl-draw-polygon-stroke-static",
"type": "line",
"filter": ["all", ["==", "$type", "Polygon"], ["==", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#000",
"line-width": 3
}
}
]
});
map.addControl(draw);
var marker_mea,bigImg_mea;
map.on("draw.create",measureFunc);//绘制创建一个要素后，进行量算处理
map.on("draw.update",measureFunc);//修改一个要素后，进行量算处理
//量算处理方法
function measureFunc(e){
var features = e.features;
//测面
if(features[0].geometry.type == "Polygon"){
if(features.length > 0){
var area = turf.area(features[0]);
var rounded_area = Math.round(area * 100) / 100;
var htmlStr = '<p>面积：<strong>' + rounded_area + '</strong> 平方米</p>';
document.getElementById('resultD').innerHTML = htmlStr;
}
};
//测距
if(features[0].geometry.type == "LineString"){
var lineDistance = turf.lineDistance(features[0]);
var rounded_distance = Math.round(lineDistance * 100) / 100;
document.getElementById('resultD').innerHTML = '<p>距离：<strong>' + rounded_distance + '</strong> 千米</p>';
}
};
//画线
function distanceMea(){
draw.changeMode(draw.modes.DRAW_LINE_STRING);
};
//画面
function areaMea(){
draw.changeMode(draw.modes.DRAW_POLYGON);
};
//清除全部
function deleteAll(){
draw.deleteAll();
if(marker_mea){
marker_mea.remove();
};
if(bigImg_mea){
$("div").remove(".marker_mea");
};
document.getElementById('resultD').innerHTML = "";
};
//关闭
function deactivateCtrl(){
draw.changeMode(draw.modes.STATIC);
};
//激活
function activateCtrl(){
draw.changeMode(draw.modes.SIMPLE_SELECT);
};
</script>
</html>