cesium combined geoserver use WFS services to achieve new layer (with source code download)

Foreword

api documentation cesium official website Address cesium official website api , description of each class of which a detailed description cesium, there is the online examples: cesium official website online examples , this is a good learning material cesium.

At a Glance

1.cesium combined geoserver use WFS service implementation layer's New
2. Source code demo download

The effect is as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data in this chapter is cesium by calling the Map Service WFS geoserver released to achieve the purpose of the new recording layer. GeoServer WFS with the key is based on the interaction Rest request parameters, the request is noteworthy that the best use of the POST method sent. Queries can be used json, but add, delete, modify, can only adopt the form of XML Transaction

• geoserver default WFS service is no editing operation rights, it is necessary to set permissions geoserver, allowing the editing operation for the job, shots are as follows:
  
  
  
  

• Part of the core code:

// Draw geojson layer styles 
var geoJsonStyle = {
stroke: Cesium.Color.YELLOW,
strokeWidth: 3,
fill: Cesium.Color.YELLOW.withAlpha(0.1)
};
var geoserverUrl = 'http://localhost:8080/geoserver/WebGIS';
var image_Source = new Cesium.UrlTemplateImageryProvider({
//url: 'http://mt0.google.cn/vt/lyrs=t,r&hl=zh-CN&gl=cn&x={x}&y={y}&z={z}',
//url: 'https://server.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}',
url: "http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}",
//tilingScheme : new Cesium.GeographicTilingScheme(),
credit: ''
});
var viewer = new Cesium.Viewer('map', {
geocoder: false,
homeButton: false,
sceneModePicker: false,
fullscreenButton: false,
vrButton: false,
baseLayerPicker: false,
infoBox: false,
selectionIndicator: false,
animation: false,
timeline: false,
shouldAnimate: true,
navigationHelpButton: false,
navigationInstructionsInitiallyVisible: false,
imageryProvider: image_Source
});
 
//加载geoserver wms服务
var wms = new Cesium.WebMapServiceImageryProvider({
url: geoserverUrl+'/wms',
layers: 'WebGIS:testLayer',
parameters: {
service : 'WMS',
format: 'image/png',
transparent: true,
}
});
viewer.imageryLayers.addImageryProvider(wms);
 
 
viewer._cesiumWidget._creditContainer.style.display = "none";
viewer.scene.globe.enableLighting = false;
//viewer.scene.globe.depthTestAgainstTerrain = true;
viewer.scene.globe.showGroundAtmosphere = false;
 
viewer.camera.flyTo({
destination : Cesium.Cartesian3.fromDegrees(113.90271877, 22.95186415,30000.0)
});
 
 
var handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
var ellipsoid = viewer.scene.globe.ellipsoid;
handler.setInputAction(function (movement) {
//通过指定的椭球或者地图对应的坐标系，将鼠标的二维坐标转换为对应椭球体三维坐标
cartesian = viewer.camera.pickEllipsoid(movement.position, ellipsoid);
if (cartesian) {
//将笛卡尔坐标转换为地理坐标
var cartographic = ellipsoid.cartesianToCartographic(cartesian);
//将弧度转为度的十进制度表示
var longitudeString = Cesium.Math.toDegrees(cartographic.longitude);
var latitudeString = Cesium.Math.toDegrees(cartographic.latitude);
var point = longitudeString + ',' + latitudeString;
queryByPoint(point,'testLayer',callbackLastQueryWFSService);
}
}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
 
 
var drawTool = new DrawTool({
viewer: viewer,
hasEdit: false
});
 
 
//绘制矩形
$("#rect_btn").click(function(){
//clearMap()
if (!drawTool) return;
drawTool.startDraw({
type: "rectangle",
style: {
heightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
//material:Cesium.Color.WHITE
material:Cesium.Color.fromRgba(0x67ADDFFF)
},
success: function (evt) {
//console.log('evt',evt);
var leftup = evt.leftup;
var rightdown = evt.rightdown;
//世界坐标转地理坐标（弧度）
var leftupcartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(leftup);
var rightdowncartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(rightdown);
//console.log('leftupcartographic',leftupcartographic);
//地理坐标（弧度）转经纬度坐标
var leftuppoint = [leftupcartographic.longitude / Math.PI * 180, leftupcartographic.latitude / Math.PI * 180];
console.log('leftuppoint',leftuppoint);
var rightdownpoint = [rightdowncartographic.longitude / Math.PI * 180, rightdowncartographic.latitude / Math.PI * 180];
console.log('rightdown',rightdown);
var extent = [leftuppoint[0].toFixed(6),leftuppoint[1].toFixed(6),rightdownpoint[0].toFixed(6),rightdownpoint[1].toFixed(6)];
var polygon = null;
if(extent && extent.length>0){
//构造polygon
polygon = '';
polygon += extent[0] + ',' + extent[1] + ' ' ;
polygon += extent[2] + ',' + extent[1] + ' ' ;
polygon += extent[2] + ',' + extent[3] + ' ' ;
polygon += extent[0] + ',' + extent[3] + ' ' ;
polygon += extent[0] + ',' + extent[1] + ' ' ;
}
console.log('polygon',polygon);
if(polygon){
var content = '<span>名称:</span><input type="text" id="estate_num" /></br><span>备注:</span><input type="text" id="holder_nam" /></br><button type="button" id="addBtn">新增</button>';
$("#infowindow").show();
$("#infowindow").empty();
$("#infowindow").append(content);
$("#addBtn").click(function(){
console.log('点击事件响应');
addLayers(polygon,$("#estate_num").val(),$("#holder_nam").val(),callbackAddLayersWFSService);
});
}
}
});
});

• 图层新增函数

/*图层新增
*@method addLayers
*@param polygon 图形
*@param fieldValue1 字段1值
*@param fieldValue2 字段2值
*@return callback
*/
function addLayers(polygon,fieldValue1,fieldValue2, callback){
var xml = '<wfs:Transaction service="WFS" version="1.0.0" xmlns:opengis="http://webgis.com" xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd">';
……

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