mapLayerManager.js
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import layers from '@/assets/json/layers.json'
import graphicSymbol from '@/assets/json/graphicSymbol.json'
import queryUtils from "@libs/map/queryUtils";
import {loadModules} from "esri-loader"
import {maps} from '@/libs/map/mapUtils'
export default {
methods:{
getLayerByName(name) {
for (var i = 0; i < layers.length; i++) {
if (layers[i].layerName == name) {
return layers[i];
}
}
return null;
},
addGeoByBsm(bsm, type,viewId) {
var self = this;
var layer = null;
if (type == 'zd') {
layer = this.getLayerByName("ZDJBXX");
} else if (type == 'zrz') {
layer = this.getLayerByName("ZRZ");
} else {
console.log("未定义类型！！");
return;
}
if (!layer) {
console.log("没有找到图层，不能查询");
return;
}
var view = maps[viewId];
queryUtils.methods.queryByWhere(layer.layerUrl+"/"+layer.id, {"BSM": bsm }, null, true, null, null, function (res) {
var features = res.features;
if(features && features.length > 0){
if( !features[0].geometry || features[0].geometry.rings.length == 0){
self.$message.success("暂无图形信息！！");
return;
}
loadModules([
"esri/layers/GraphicsLayer"
]).then( ([
GraphicsLayer
]) => {
var layer = view.map.findLayerById("highlightLayer");
if(layer){
layer.removeAll();
}else {
layer = new GraphicsLayer({
id:"highlightLayer"
})
view.map.add(layer,5);
}
var symbol = graphicSymbol.fillSymbol.highlightSymbol;
var graphic = features[0];
graphic.symbol = symbol;
layer.add(graphic);
// view.extent = graphic.geometry.extent;
view.center = graphic.geometry.extent.center;
view.zoom = 15;
}).catch( err => {
thow(err);
})
}else {
self.$message.success("暂无图形信息！！");
return;
}
});
},
//将查询结果展示在地图上
addSearchResultToMap(searchResult,viewId){
var view = maps[viewId],
self = this;
loadModules([
"esri/layers/GraphicsLayer"
]).then(([
GraphicsLayer
]) => {
if(!searchResult || searchResult.length == 0){
return;
}
for(var i = 0;i < searchResult.length;i++){
var layer = view.map.findLayerById("searchResult"+searchResult[i].layerId);
if(layer){
layer.removeAll();
}else{
layer = new GraphicsLayer({
id:"searchResult"+searchResult[i].layerId
})
view.map.add(layer);
}
var symbol = graphicSymbol.fillSymbol.highlightSymbol;
var features = searchResult[i].features;
for(var j = 0;j < features.length;j++){
if(features[j].geometry){
features[j].symbol = symbol;
layer.add(features[j]);
}
}
}
}).catch(err=>{
console.log(err);
})
},
//缩放至当前对象
extentToGraphic(feature,highlightGraohic,viewId,callBackFunction){
var symbol = graphicSymbol.fillSymbol.highlightSymbol;
var highlightSymbol = graphicSymbol.fillSymbol.defaultSymbol;
if(highlightGraohic){
highlightGraohic.symbol = symbol;
}
feature.symbol = highlightSymbol;
var view = maps[viewId];
feature.geometry.type == 'point' ? view.center = feature.geometry :view.center = feature.geometry.extent.center;
if(callBackFunction && typeof callBackFunction == 'function'){
callBackFunction();
}
},
clearSearchLayer(viewId){
var view = maps[viewId],
layers = view.map.allLayers;
layers.filter(function (item) {
if(item.id.indexOf("searchResult") != -1){
item.removeAll();
}
});
},
//给默认加载矢量图形中添加或者移除图层
addSublayers(viewId,layers){
var view = maps[viewId],
layer = view.map.findLayerById("testLayer");
for(var i = 0;i < layers.length;i++){
var sublayer = layer.findSublayerById(layers[i].layerId);
if(sublayer){
sublayer.visible = true;
}else{
sublayer = {
id:layers[i].layerId,
visible:true
}
layer.sublayers.push(sublayer);
}
}
},
removeSublayer(viewId,layers){
var view = maps[viewId],
layer = view.map.findLayerById("testLayer");
var items = layer.sublayers.items;
for(var i = 0;i < layers.length;i++){
for (var k = 0;k<items.length;k++) {
if(layers[i].layerId == items[k].id){
items.splice(k, 1);
break;
}
}
}
layer.sublayers = items;
},
//设置图层透明度
setLayerOpacity(viewId,layers,value){
var view = maps[viewId],
layer = view.map.findLayerById("testLayer");
for(var i = 0;i < layers.length;i++){
var sublayer = layer.findSublayerById(layers[i].layerId);
if(sublayer){
sublayer.opacity = value/100;
}
}
}
}
}