featureUpdate.js
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/*
* 空间图层数据添加、修改、删除
* */
import {loadModules} from "esri-loader"
export default {
methods:{
addGraphic(url,graphic,callBackFunction){
loadModules([
"esri/layers/FeatureLayer",
"esri/Graphic",
"esri/geometry/Point",
"esri/geometry/Polygon",
"esri/geometry/Polyline"
]).then(([
FeatureLayer,
Graphic,
Point,
Polygon,
Polyline
])=>{
var featureLayer = new FeatureLayer({
url:url
})
console.log(featureLayer);
console.log(graphic);
var saveGraphics = [];
if(!Array.isArray(graphic)){
graphic = [graphic];
}
for(var i = 0;i < graphic.length;i++){
var geo = null;
if(!graphic[i].geometry){
geo = null;
}else if(graphic[i].geometry.type == 'point'){
geo = new Point(graphic[i].geometry);
}else if(graphic[i].geometry.type == 'polyline'){
geo = new Polyline(graphic[i].geometry);
}else if(graphic[i].geometry.type == 'polygon'){
geo = new Polygon(graphic[i].geometry);
}
var saveGraphic = new Graphic({
attributes:graphic[i].attributes,
geometry:geo
});
saveGraphics.push(saveGraphic);
}
featureLayer.applyEdits({
addFeatures:saveGraphics
}).then(function (res){
if(callBackFunction && typeof callBackFunction == 'function'){
callBackFunction(res);
}
})
}).catch( err => {
throw (err);
})
},
updateGraphic(url,graphic,callBackFunction){
loadModules([
"esri/layers/FeatureLayer",
"esri/Graphic",
"esri/geometry/Point",
"esri/geometry/Polygon",
"esri/geometry/Polyline"
]).then(([
FeatureLayer,
Graphic,
Point,
Polygon,
Polyline
])=>{
var featureLayer = new FeatureLayer({
url:url
})
var updGraphics = [];
if(!Array.isArray(graphic)){
graphic = [graphic];
}
for(var i = 0;i < graphic.length;i++){
var geo = null;
if(!graphic[i].geometry){
geo = new Polygon();
}else if(graphic[i].geometry.type == 'point'){
geo = new Point(graphic[i].geometry);
}else if(graphic[i].geometry.type == 'polyline'){
geo = new Polyline(graphic[i].geometry);
}else if(graphic[i].geometry.type == 'polygon'){
geo = new Polygon(graphic[i].geometry);
}
var updGraphic = new Graphic({
attributes:graphic[i].attributes,
geometry:geo
});
updGraphics.push(updGraphic);
}
featureLayer.applyEdits({
updateFeatures:updGraphics
}).then(function (res){
if(callBackFunction && typeof callBackFunction == 'function'){
callBackFunction(res);
}
})
}).catch( err => {
throw (err);
})
},
delGraphic(url,graphic,callBackFunction){
loadModules([
"esri/layers/FeatureLayer",
"esri/Graphic",
"esri/geometry/Point",
"esri/geometry/Polygon",
"esri/geometry/Polyline"
]).then(([
FeatureLayer,
Graphic,
Point,
Polygon,
Polyline
])=>{
var featureLayer = new FeatureLayer({
url:url
})
var delGraphics = [];
if(!Array.isArray(graphic)){
graphic = [graphic];
}
for(var i = 0;i < graphic.length;i++){
var geo = null;
if(!graphic[i].geometry){
geo = null;
}else if(graphic[i].geometry.type == 'point'){
geo = new Point(graphic[i].geometry);
}else if(graphic[i].geometry.type == 'polyline'){
geo = new Polyline(graphic[i].geometry);
}else if(graphic[i].geometry.type == 'polygon'){
geo = new Polygon(graphic[i].geometry);
}
var delGraphic = new Graphic({
attributes:graphic[i].attributes,
geometry:geo
});
delGraphics.push(delGraphic);
}
featureLayer.applyEdits({
deleteFeatures:delGraphics
}).then(function (res){
if(callBackFunction && typeof callBackFunction == 'function'){
callBackFunction(res);
}
})
}).catch( err => {
throw (err);
})
}
}
}