1. 加载地图
1) 加载底图
var map, layer;
var drawLayer = null;//定义高亮的图层
function init() {
// 添加地图容器
map = new OpenLayers.Map('map1',
{
controls: [
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.LayerSwitcher(),
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.MousePosition()
]
}
);
// 添加图层
layer = new Zondy.Map.Doc('MDZZ', 'WorldMKT', {
ip: "127.0.0.1",
port: '6163',
isBaseLayer: true
});
map.addLayers([layer]);
map.setCenter(new OpenLayers.LonLat(11544046, 4312771), 3);
}
2) 创建图层用于高亮显示
function initDrawLayer() {
drawLayer = new OpenLayers.Layer.Vector("Highlight");
map.addLayer(drawLayer);
}
2.查询
查询5步曲
a.创建查询结构
//创建查询结构
var queryStruct = new Zondy.Service.QueryFeatureStruct(
{
//要查询的信息
IncludeGeometry: true, //几何图形信息
IncludeAttribute: true,//属性
IncludeGraphic: true //图形参数
}
);
b.创建查询形状(点 图形)
<!--指定查询点的坐标-->
var pointObj = new Zondy.Object.PointForQuery(11544046, 4312771);
// var lineObj = [new Zondy.Object.PointForQuery(11544046, 4312771), new Zondy.Object.PointForQuery(1623478, 5003018)];
// lineObj[0] = new Zondy.Object.PointForQuery(11544046, 4312771);
// lineObj[1] = new Zondy.Object.PointForQuery(1623478,5003018);
// var polyLine = new Zondy.Object.PolyLineForQuery(lineObj);
// 地图容差 在点的0.3范围内可被选取
// pointObj.nearDis = 0.3;
c. 创建查询参数
var queryParm = new Zondy.Service.QueryParameter(
{
geometry: pointObj, //查询点
// geometry: polyLine, //查询线
resultFormat: "json", //输出结果格式为json
struct: queryStruct //指定查询结构
}
);
d.创建查询服务
var queryService = new Zondy.Service.QueryDocFeature(
queryParm/*调用查询参数函数*/,
"WorldMKT", 1/*查询图层索引号*/,
{
ip: "127.0.0.1",
port: "6163"
}
);
e.开始查询
// 实现查询操作,querySuccess回调函数
queryService.query(onSuccess);
回调函数 onSuccess
function querySuccess(result) {
var FormatData = JSON.stringify(result);
Process(FormatData, 1, "resultTable"/*将结果插入到'resultTable'中 'resultTable'为div的id*/);
// 初始化高亮图层
initDrawLayer();
// 新建对象存储要读取的数据
var format = new Zondy.Format.PolygonJSON();
// 读取查询到的数据并添加到要素中
var features = format.read(result);
// 将高粱图层设为可见
drawLayer.setVisibility(true);
// 向图层添加查询到的要素
drawLayer.addFeatures(features);
}
3.代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link href="../css/mapDefault.css" type="text/css" rel="stylesheet"/>
<script src="../libs/jquery-1.7.1.min.js" type="text/javascript"></script>
<script src="../libs/OpenLayers.js" type="text/javascript"></script>
<script src="../libs/zdclient.js" type="text/javascript"></script>
<script src="../libs/jsonformat/json2.js" type="text/javascript"></script>
<script src="../libs/jsonformat/jsonExtend.js" type="text/javascript"></script>
<script type="text/javascript">
var map, layer;
var drawLayer = null;//定义高亮的图层
function init() {
// 添加地图容器
map = new OpenLayers.Map('map1',
{
controls: [
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.LayerSwitcher(),
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.MousePosition()
]
}
);
// 添加图层
layer = new Zondy.Map.Doc('MDZZ', 'WorldMKT', {
ip: "127.0.0.1",
port: '6163',
isBaseLayer: true
});
map.addLayers([layer]);
map.setCenter(new OpenLayers.LonLat(11544046, 4312771), 3);
}
// 初始化要高亮的图层
function initDrawLayer() {
drawLayer = new OpenLayers.Layer.Vector("Highlight");
map.addLayer(drawLayer);
}
function QueryByPNT() {
//创建查询结构
var queryStruct = new Zondy.Service.QueryFeatureStruct(
{
//要查询的信息
IncludeGeometry: true, //几何图形信息
IncludeAttribute: true,//属性
IncludeGraphic: true //图形参数
}
);
// 创建查询形状(点)
var pointObj = new Zondy.Object.PointForQuery(11544046, 4312771);
// var lineObj = [new Zondy.Object.PointForQuery(11544046, 4312771), new Zondy.Object.PointForQuery(1623478, 5003018)];
// lineObj[0] = new Zondy.Object.PointForQuery(11544046, 4312771);
// lineObj[1] = new Zondy.Object.PointForQuery(1623478,5003018);
// var polyLine = new Zondy.Object.PolyLineForQuery(lineObj);
// 地图容差 在点的0.3范围内可被选取
// pointObj.nearDis = 0.3;
// 创建查询参数
var queryParm = new Zondy.Service.QueryParameter(
{
geometry: pointObj, //查询点
// geometry: polyLine, //查询线
resultFormat: "json", //输出结果格式为json
struct: queryStruct //查询结构
}
);
// 创建被查询对象 服务
var queryService = new Zondy.Service.QueryDocFeature(
queryParm/*调用查询参数函数*/,
"WorldMKT", 1/*查询图层索引号*/,
{
ip: "127.0.0.1",
port: "6163"
}
);
// 实现查询操作,querySuccess回调函数
queryService.query(querySuccess);
}
function querySuccess(result) {
var FormatData = JSON.stringify(result);
Process(FormatData, 1, "resultTable"/*存放查询结果id位置*/);
//初始化高亮图层
initDrawLayer();
// 新建对象存储要读取的数据
var format = new Zondy.Format.PolygonJSON();
// 读取查询到的数据并添加到要素中
var features = format.read(result);
// 将高粱图层设为可见
drawLayer.setVisibility(true);
// 向图层添加查询到的要素
drawLayer.addFeatures(features);
}
</script>
</head>
<body onload="init()">
<div class="ToolLib">
<input type="button" class="ButtonLib" value="HighLight And Show Details" onclick="QueryByPNT()"/>
</div>
<div id="map1"></div>
<aside id="resultTable">
</aside>
</body>
</html>
4.效果
Paste_Image.png
