百度API接口：http://developer.baidu.com/map/jsdemo.htm#a1_1
百度地图API详解之地图标注：http://www.cnblogs.com/jz1108/archive/2011/09/15/2152122.html
【百度地图API】自行获取区域经纬度的工具：http://www.cnblogs.com/milkmap/archive/2012/02/23/2365064.html
<?php
header("Content-Type:text/html;charset=utf-8");
require_once("../db_config.php");
?>
<?php
$sql = "SELECT * FROM `RetailersInfoTable` ";
$query = mysql_query($sql);
$location=NULL;
$clat=0;
$clng=0;
$i = 0;
if(mysql_num_rows($query))
{
while($row=mysql_fetch_array($query))
{
$i++;
$location[]=array(
"Longitude"=>$row["Longitude"],
"Latitude"=>$row["Latitude"],
"name"=>$row["RetailersName"],
"kpname"=>$row["RetailersKP"],
"kpphone"=>$row["RetailersLeaderPhone"],
"rid"=>$row["RID"],
"retailersid"=>$row["RetailersID"],
);
$clat+=$row["Latitude"];
$clng+=$row["Longitude"];
}
$clat = $clat/$i; //平均所有点，以得出初始化定位点
$clng = $clng/$i;
}
?>
<!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" />
<title>画弧线</title>
<link href="../images/css.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=*****************"></script>
<script type="text/javascript" src="http://api.map.baidu.com/library/CurveLine/1.5/src/CurveLine.min.js"></script>
<style type="text/css">
html,body{
width:100%;
height:100%;
margin:0;
overflow:hidden;
}
</style>
</head>
<body>
<div style="width:100%;height:100%;border:1px solid gray" id="container">
</div>
</body>
</html>
<script type="text/javascript">
// 百度地图API功能
var map = new BMap.Map("container");
map.centerAndZoom(new BMap.Point(<?php echo $clng?>,<?php echo $clat?>), 13);
map.addControl(new BMap.NavigationControl()); //添加默认缩放平移控件
map.addControl(new BMap.NavigationControl({anchor: BMAP_ANCHOR_TOP_RIGHT, type: BMAP_NAVIGATION_CONTROL_SMALL})); //右上角，仅包含平移和缩放按钮
map.addControl(new BMap.NavigationControl({anchor: BMAP_ANCHOR_BOTTOM_LEFT, type: BMAP_NAVIGATION_CONTROL_PAN})); //左下角，仅包含平移按钮
map.addControl(new BMap.NavigationControl({anchor: BMAP_ANCHOR_BOTTOM_RIGHT, type: BMAP_NAVIGATION_CONTROL_ZOOM})); //右下角，仅包含缩放按钮
map.enableScrollWheelZoom(); //启用滚轮放大缩小，默认禁用
map.enableContinuousZoom(); //启用地图惯性拖拽，默认禁用
//var points = [p1,p3, p2,p4];
<?php
//标注的定位点（anchor）,infoWindowAnchor属性，它是用来控制信息窗口开启的位置
foreach($location as $k => $value)
{
?>
var mPoint = new BMap.Point(<?php echo $value["Longitude"]; ?>, <?php echo $value["Latitude"]; ?>);
var myIcon = new BMap.Icon("1.png", new BMap.Size(39,39), {
anchor: new BMap.Size(20, 30),
infoWindowAnchor: new BMap.Size(20, 0)
});
var marker = new BMap.Marker(mPoint,{icon:myIcon}); // 创建标注
map.addOverlay(marker); // 将标注添加到地图中
var infoWindow<?php echo $k;?> = new BMap.InfoWindow("<?php
echo '网点名称：'.$value["name"];
echo '</br>';
echo '联系人：'.$value["kpname"];
echo '</br>';
echo '联系电话：'.$value["kpphone"];
echo '</br>';
echo '<a href=../partner/RetailersVisitRecord.php?id='.$value['rid'].'>拜访记录 </a>';
echo '';
echo '<a href=../retailer/showsalesorder.php?id='.$value['retailersid'].'> 历史销售订单</a>';
;?>");
marker.addEventListener("mouseover", function(){this.openInfoWindow(infoWindow<?php echo $k;?>);});
<?php
}
?>
</script>