BMapLib.DrawingManager中的方法
| 方法 | 返回值 | 描述 |
|---|---|---|
| close() | 關閉地圖的繪製狀態 | |
| disableCalculate() | 關閉距離或面積計算 | |
| enableCalculate() | 打開距離或面積計算 | |
| getDrawingMode() | DrawingType | 獲取當前的繪製模式 |
| open() | 開啓地圖的繪製模式 | |
| setDrawingMode(DrawingType) | Boolean | 設置當前的繪製模式，參數DrawingType，爲5個可選常量: BMAP_DRAWING_MARKER 畫點 BMAP_DRAWING_CIRCLE 畫圓 BMAP_DRAWING_POLYLINE 畫線 BMAP_DRAWING_POLYGON 畫多邊形 BMAP_DRAWING_RECTANGLE 畫矩形 |
以下部分可以實現在頁面中畫出不同形狀的圖形
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body,
html {
width: 100%;
height: 100%;
margin: 0;
font-family: "微軟雅黑";
}
#allmap {
width: 100%;
height: 500px;
overflow: hidden;
}
#result {
width: 100%;
font-size: 12px;
}
dl,
dt,
dd,
ul,
li {
margin: 0;
padding: 0;
list-style: none;
}
p {
font-size: 12px;
}
dt {
font-size: 14px;
font-family: "微軟雅黑";
font-weight: bold;
border-bottom: 1px dotted #000;
padding: 5px 0 5px 5px;
margin: 5px 0;
}
dd {
padding: 5px 0 0 5px;
}
li {
line-height: 28px;
}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=5E5EE28a7615536d1ffe2ce2a3667859"></script>
<!--加載鼠標繪製工具-->
<script type="text/javascript"
src="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js"></script>
<link rel="stylesheet" href="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css" />
<!--加載檢索信息窗口-->
<script type="text/javascript"
src="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.js"></script>
<link rel="stylesheet" href="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.css" />
<title>百度地圖API功能演示</title>
</head>
<body>
<div id="allmap" style="overflow:hidden;zoom:1;position:relative;">
<div id="map" style="height:100%;-webkit-transition: all 0.5s ease-in-out;transition: all 0.5s ease-in-out;">
</div>
</div>
<div id="result">
<input type="button" value="獲取繪製的覆蓋物個數" onclick="alert(overlays.length)" />
<input type="button" value="清除所有覆蓋物" onclick="clearAll()" />
<input type="button" value="獲取多邊形的頂點" onclick="getPoint()" /><br />
<input type="button" value="開啓線、面編輯功能" onclick="Editing('enable')" />
<input type="button" value="關閉線、面編輯功能" onclick="Editing('disable')" />
<input type="button" value="顯示原有多邊形" onclick="showPolygon(this)" /><br />
<input type="button" value="畫多邊形" onclick="draw(BMAP_DRAWING_POLYGON)" />
<input type="button" value="畫矩形" onclick="draw(BMAP_DRAWING_RECTANGLE)" />
<input type="button" value="畫線" onclick="draw(BMAP_DRAWING_POLYLINE)" />
<input type="button" value="畫圓" onclick="draw(BMAP_DRAWING_CIRCLE)" />
<input type="button" value="畫點" onclick="draw(BMAP_DRAWING_MARKER)" />
<span>右鍵獲取任意點的經緯度</span>
</div>
<div id="resultShape"></div>
<div id="shape">座標爲</div>
<script type="text/javascript">
function $(id) {
return document.getElementById(id);
}
// 百度地圖API功能
var map = new BMap.Map('map');
var poi = new BMap.Point(113.948913, 22.530844);
map.centerAndZoom(poi, 16);
map.enableScrollWheelZoom();
var overlays = [];
var styleOptions = {
strokeColor: "red", //邊線顏色。
fillColor: "red", //填充顏色。當參數爲空時，圓形將沒有填充效果。
strokeWeight: 3, //邊線的寬度，以像素爲單位。
strokeOpacity: 0.8, //邊線透明度，取值範圍0 - 1。
fillOpacity: 0.6, //填充的透明度，取值範圍0 - 1。
strokeStyle: 'solid' //邊線的樣式，solid或dashed。
}
//實例化鼠標繪製工具
var drawingManager = new BMapLib.DrawingManager(map, {
isOpen: false, //是否開啓繪製模式
//enableDrawingTool: true, //是否顯示工具欄
drawingToolOptions: {
anchor: BMAP_ANCHOR_TOP_RIGHT, //位置
offset: new BMap.Size(5, 5), //偏離值
},
circleOptions: styleOptions, //圓的樣式
polylineOptions: styleOptions, //線的樣式
polygonOptions: styleOptions, //多邊形的樣式
rectangleOptions: styleOptions //矩形的樣式
});
//添加鼠標繪製工具監聽事件，用於獲取繪製結果
var overlaycomplete = function (e) {
overlays.push(e.overlay);
drawingManager.close();
console.log(drawingManager.getDrawingMode())
};
drawingManager.addEventListener('overlaycomplete', overlaycomplete);
map.addEventListener("rightclick", function (e) {
if (confirm(e.point.lng + "," + e.point.lat)) {
$("shape").innerHTML = $("shape").innerHTML + " <br/>(" + e.point.lng + "," + e.point.lat + ")";
}
});
function draw(type) {
drawingManager.open();
drawingManager.setDrawingMode(type);
}
function clearAll() {
for (var i = 0; i < overlays.length; i++) {
map.removeOverlay(overlays[i]);
}
overlays.length = 0
}
function getPoint() {
$("resultShape").innerHTML = '';
for (var i = 0; i < overlays.length; i++) {
var overlay = overlays[i].getPath();
console.log(overlay)
$("resultShape").innerHTML = $("resultShape").innerHTML + overlay.length + '邊形:<br/>';
for (var j = 0; j < overlay.length; j++) {
var grid = overlay[j];
$("resultShape").innerHTML = $("resultShape").innerHTML + (j + 1) + "個點:(" + grid.lng + "," + grid.lat + ");<br/>";
}
}
}
function Editing(state) {
for (var i = 0; i < overlays.length; i++) {
state == 'enable' ? overlays[i].enableEditing() : overlays[i].disableEditing();
}
}
function showPolygon(btn) {
var polygon = new BMap.Polygon([
new BMap.Point(113.941853, 22.530777),
new BMap.Point(113.940487, 22.527789),
new BMap.Point(113.94788, 22.527597),
new BMap.Point(113.947925, 22.530618)
], styleOptions); //創建多邊形
map.addOverlay(polygon); //增加多邊形
// overlays.push(polygon); //是否把該圖像加入到編輯和刪除行列
btn.setAttribute('disabled', 'false');
showText();
}
function showText() {
var opts = {
position: new BMap.Point(113.941853, 22.530777), // 指定文本標註所在的地理位置
offset: new BMap.Size(30, 30) //設置文本偏移量
}
var label = new BMap.Label("不可編輯", opts); // 創建文本標註對象
label.setStyle({
color: "black",
fontSize: "16px",
fillColor: "red", //填充顏色。當參數爲空時，圓形將沒有填充效果。
});
map.addOverlay(label);
}
</script>
</body>
</html>