修改空间浏览方式
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Li Jianxuan
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a9489cbe51
commit
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@ -1,88 +1,202 @@
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<?php
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$this->headTitle($this->config->title->site);
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$this->headTitle($this->config->title->data);
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$this->headTitle("空间浏览");
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$this->headTitle()->setSeparator(' - ');
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$this->headLink()->appendStylesheet('/css/metadata.css');
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$this->headScript()->appendFile('http://maps.google.com/maps/api/js?sensor=false');
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$this->headScript()->appendFile('/js/OpenLayers.js');
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$this->headLink()->appendStylesheet('/js/theme/default/style.css');
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$this->headTitle($this->config->title->site);
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$this->headTitle($this->config->title->data);
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$this->headTitle("空间浏览");
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$this->headTitle()->setSeparator(' - ');
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$this->theme->AppendPlus($this,'jquery_ui');
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//$this->theme->AppendPlus($this,'google_map_v3');
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$this->theme->AppendPlus($this,'colorbox');
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$this->headLink()->appendStylesheet('/js/theme/default/style.css');
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$this->nav[] = array('link'=>"/data/map",'title'=>'空间导航');
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?>
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<div class="row-fluid">
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<?= $this->render('breadcrumbs.phtml'); ?>
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<?= $this->partial('data/tools.phtml'); ?>
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</div>
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<div id='map' style="clear:left;height:500px;border:1px;"></div>
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<style type="text/css">
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label{display:inline;}
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img{max-width:none;}
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hr{margin:0;}
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?>
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<style type="text/css">
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#data_canvas .well {background:#FFF;}
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</style>
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<script type="text/javascript" >
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var map;
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map = new OpenLayers.Map('map');
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map.addControl(new OpenLayers.Control.LayerSwitcher());
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var gphy = new OpenLayers.Layer.Google(
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"Google Physical",
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{type: google.maps.MapTypeId.TERRAIN}
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);
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var gmap = new OpenLayers.Layer.Google(
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"Google Streets", // the default
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{numZoomLevels: 20}
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);
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var ghyb = new OpenLayers.Layer.Google(
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"Google Hybrid",
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{type: google.maps.MapTypeId.HYBRID, numZoomLevels: 20}
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);
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var gsat = new OpenLayers.Layer.Google(
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"Google Satellite",
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{type: google.maps.MapTypeId.SATELLITE, numZoomLevels: 22}
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);
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geojson_layer = new OpenLayers.Layer.Vector("Data Boundary", {
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strategies: [new OpenLayers.Strategy.Fixed()],
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protocol: new OpenLayers.Protocol.HTTP({
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url: "/service/json<?php echo $this->params; ?>",
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format: new OpenLayers.Format.GeoJSON()
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})
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});
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map.addLayers([gphy, gmap, ghyb, gsat,geojson_layer]);
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// Google.v3 uses EPSG:900913 as projection, so we have to
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// transform our coordinates
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map.setCenter(new OpenLayers.LonLat(102, 36).transform(
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new OpenLayers.Projection("EPSG:4326"),
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map.getProjectionObject()
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), 5);
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var sf = new OpenLayers.Control.SelectFeature(geojson_layer,{onSelect:onFeatureSelect,onUnselect:onFeatureUnselect});
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map.addControl(sf);
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sf.activate();
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for (var i=map.layers.length-1; i>=0; --i) {
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map.layers[i].animationEnabled = this.checked;
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};
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function onPopupClose(evt) {
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selectControl.unselect(selectedFeature);
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}
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function onFeatureSelect(feature) {
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selectedFeature = feature;
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popup = new OpenLayers.Popup.FramedCloud("chicken",
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feature.geometry.getBounds().getCenterLonLat(),
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null,
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"<div style='font-size:.8em'><a href=/data/"+feature.attributes['uuid']+">"+ feature.attributes['title'] +"</a> | <a href=/data/map/id/"+feature.attributes['id']+"><i class='icon-globe'></i></a><hr /><img class='' src=/service/thumb/id/" + feature.attributes['id']+"/></div>",
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null, false, onPopupClose);
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feature.popup = popup;
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map.addPopup(popup);
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}
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function onFeatureUnselect(feature) {
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map.removePopup(feature.popup);
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feature.popup.destroy();
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feature.popup = null;
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}
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<div class="row-fluid">
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<?= $this->render('breadcrumbs.phtml'); ?>
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<?= $this->partial('data/tools.phtml'); ?>
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<h4>将地图中范围调整至要搜索数据的范围，然后点击“搜索数据”按钮查看当前范围的所有数据</h4>
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<hr />
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<div class="row-fluid">
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<div class="span6">
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<div><button class="btn btn-large btn-block" type="button" id="searchbtn" onclick="mapmethods.action(map,1);">查看数据</button></div>
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<hr />
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<div id="map_canvas" style="height:500px;">
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</div>
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</div>
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<div class="span6">
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<div><button class="btn btn-large btn-block" type="button" onclick="$('#data_canvas').html('');">清除列表</button></div>
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<hr />
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<div class="well well-small" style="height:500px;overflow-y:scroll;">
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<ul id="data_canvas" class="unstyled">
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</ul>
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</div>
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</div>
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</div>
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</div>
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<script type="text/javascript" >
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$(function() {
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});
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function loadScript() {
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var script = document.createElement('script');
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script.type = 'text/javascript';
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script.src = 'https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&' +
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'callback=initialize';
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document.body.appendChild(script);
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}
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window.onload = loadScript;
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// Google Map Part
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var map = null;
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var mapElementID = "map_canvas";
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var rectangle = null;
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var markers = [];
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function initialize() {
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//加载地图
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var myLatlng = new google.maps.LatLng(35.656456,105.819946);
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var myOptions = {
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zoom: 3,
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center: myLatlng,
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mapTypeId: google.maps.MapTypeId.ROADMAP
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}
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map = new google.maps.Map(document.getElementById(mapElementID), myOptions);
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//methods.trigger('tilesloaded',map);
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mapmethods.trigger('dragend',map);
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mapmethods.trigger('zoom_changed',map);
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}
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function RemoveRectangle(){
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if(rectangle != null)
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{
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rectangle.setMap(null);
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rectangle = null;
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}
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if (markers) {
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for (i in markers) {
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markers[i].setMap(null);
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}
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}
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}
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function setRectangle(east,west,south,north){
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if(east.toFixed(1) != west.toFixed(1) && south.toFixed(1)!= north.toFixed(1) ){
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RemoveRectangle();
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bounds = new google.maps.LatLngBounds(
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new google.maps.LatLng(south,west),
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new google.maps.LatLng(north,east)
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);
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rectangle = new google.maps.Rectangle({
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bounds: bounds,
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editable: false
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});
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rectangle.setMap(map);
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}else{
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RemoveRectangle();
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var position = new google.maps.LatLng(south,east);
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var marker = new google.maps.Marker({
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position: position,
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map: map,
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});
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markers.push(marker);
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}
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}
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var mapmethods = {
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trigger : function(triggername,map){
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google.maps.event.addListener(map, triggername,function(){
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range = mapmethods.action(map);
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//console.log(range);
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//mapmethods.ajax(range,0);
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});
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},
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getbounds : function(map){
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bounds = map.getBounds();
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point1 = bounds.getNorthEast();
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point2 = bounds.getSouthWest();
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latlng = new Array();
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latlng['east'] = point1.lng().toFixed(2);
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latlng['north'] = point1.lat().toFixed(2);
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latlng['west'] = point2.lng().toFixed(2);
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latlng['south'] = point2.lat().toFixed(2);
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return latlng;
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},
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action : function(map,ajax){
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range = mapmethods.getbounds(map);
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$('#searchbtn').html("搜索数据：(" + range['east'] + "," + range['north'] + ") to (" + range['west'] + "," + range['south'] + ")");
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if(ajax == 1)
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mapmethods.ajax(range);
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//return range;
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},
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ajax : function(range){
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btn = $('#searchbtn');
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btnhtml = btn.html();
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func = btn.attr('onclick');
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data = new Array();
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for(k in range)
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{
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data.push('opt['+k+']='+range[k]);
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}
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post = data.join("&");
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$.ajax({
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'type':"POST",
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'url': '/service/mapsearch',
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'data': post,
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'success':function(data){
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if (typeof(data)=='object')
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{
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mapmethods.list(data);
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}
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else{
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alert('此区域无数据');
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}
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},
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'timeout': 15000,
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'error': function(){
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alert('处理中出现错误，请刷新页面后重试');
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},
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'beforeSend':function(){
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btn.attr('onclick','');
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btn.html('<img src="/images/ajax-load-small.gif" />');
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},
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'complete':function(){
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btn.attr('onclick',func);
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btn.html(btnhtml);
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}
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});
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},
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list : function(data)
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{
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html = "";
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if(data.length > 0)
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{
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for(i in data)
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{
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html += '<li class="well well-small">'
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+ '<p><a href="/data/'+data[i].uuid+'">'+data[i].title+'</a></p>'
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+ '<div class="input-append">'
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+ '<a class="btn" href="javascript:void(0);" onclick="setRectangle('+data[i].east+','+data[i].west+','+data[i].south+','+data[i].north+')" title="在地图上查看数据范围"><i class="icon-eye-open"></i></a>'
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+ '<a class="btn" href="/data/'+data[i].uuid+'" title="查看数据信息"><i class="icon-search"></i></a>'
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+ '</div>'
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+ '</li>';
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}
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}
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$('#data_canvas').html(html);
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}
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}
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</script>
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@ -17,4 +17,41 @@ class Metadata
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$rs = $this->db->query($sql);
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return $rs->fetch();
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}
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function mapview($options)
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{
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$wheresql = array();
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if(isset($options['east']))
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{
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$wheresql[] = " md.east < ".$options['east'];
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}
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if(isset($options['west']))
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{
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$wheresql[] = " md.west > ".$options['west'];
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}
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if(isset($options['north']))
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{
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$wheresql[] = " md.north < ".$options['north'];
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}
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if(isset($options['south']))
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{
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$wheresql[] = " md.south > ".$options['south'];
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}
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if(count($wheresql)>0)
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{
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$wheresql = " WHERE ".join(" AND ",$wheresql);
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}else{
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$wheresql = "";
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}
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$sql = "SELECT md.* FROM ".$this->tbl_metadata." md $wheresql";
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$rs = $this->db->query($sql);
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return $rs->fetchAll();
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}
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}
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