Javascript 使用JS示例代码添加shapefile
我想将shapefile从文件夹添加到地图。我已经使用了JS示例代码,但它不适合我。它在响应中给出了错误,featurecollection。它没有进入请求块,所以我将其更改为esri请求,但代码仍然不工作Javascript 使用JS示例代码添加shapefile,javascript,arcgis-js-api,esri-maps,Javascript,Arcgis Js Api,Esri Maps,我想将shapefile从文件夹添加到地图。我已经使用了JS示例代码,但它不适合我。它在响应中给出了错误,featurecollection。它没有进入请求块,所以我将其更改为esri请求,但代码仍然不工作 var portalUrl = "https://www.arcgis.com"; esriConfig.defaults.io.proxyUrl = "/proxy/"; on(dojo.byId("uploadForm"), "change"
var portalUrl = "https://www.arcgis.com";
esriConfig.defaults.io.proxyUrl = "/proxy/";
on(dojo.byId("uploadForm"), "change", function (event) {
var fileName = event.target.value.toLowerCase();
<!-- if (sniff("ie")) { //filename is full path in IE so extract the file name -->
<!-- var arr = fileName.split("\\"); -->
<!-- fileName = arr[arr.length - 1]; -->
<!-- } -->
if (fileName.indexOf(".zip") !== -1) {//is file a zip - if not notify user
generateFeatureCollection(fileName);
}
else {
alert("Add shapefile as .zip file");
}
});
function generateFeatureCollection (fileName) {
var name = fileName.split(".");
name = name[0].replace("c:\\fakepath\\", "");
var params = {
'name': name,
'targetSR': map.spatialReference,
'maxRecordCount': 1000,
'enforceInputFileSizeLimit': true,
'enforceOutputJsonSizeLimit': true
};
//var extent = scaleUtils.getExtentForScale(map, 40000);
var extent = esri.geometry.getExtentForScale(map, 40000);
var resolution = extent.getWidth() / map.width;
params.generalize = true;
params.maxAllowableOffset = resolution;
params.reducePrecision = true;
params.numberOfDigitsAfterDecimal = 0;
var myContent = {
'filetype': 'shapefile',
'publishParameters': JSON.stringify(params),
'f': 'json',
//'callback.html': 'textarea'
};
esriRequest({
url: portalUrl + '/sharing/rest/content/features/generate',
content: myContent,
form: dojo.byId('uploadForm'),
handleAs: 'json',
load: lang.hitch(this, function (response) {
<!-- if (response.error) { -->
<!-- errorHandler(response.error); -->
<!-- return; -->
<!-- } -->
var layerName = response.FeatureCollection.layers[0].layerDefinition.name;
addShapefileToMap(response.FeatureCollection);
}),
//error: lang.hitch(this, errorHandler)
});
}
function addShapefileToMap (featureCollection) {
var fullExtent;
var layers = [];
arrayUtils.forEach(featureCollection.layers, function (layer) {
var infoTemplate = new InfoTemplate("Details", "${*}");
var featureLayer = new FeatureLayer(layer, {
infoTemplate: infoTemplate
});
featureLayer.on('click', function (event) {
map.infoWindow.setFeatures([event.graphic]);
});
changeRenderer(featureLayer);
fullExtent = fullExtent ?
fullExtent.union(featureLayer.fullExtent) : featureLayer.fullExtent;
layers.push(featureLayer);
});
map.addLayers(layers);
map.setExtent(fullExtent.expand(1.25), true);
}
function changeRenderer (layer) {
//change the default symbol for the feature collection for polygons and points
var symbol = null;
switch (layer.geometryType) {
case 'esriGeometryPoint':
symbol = new PictureMarkerSymbol({
'angle': 0,
'xoffset': 0,
'yoffset': 0,
'type': 'esriPMS',
'url': 'https://static.arcgis.com/images/Symbols/Shapes/BluePin1LargeB.png',
'contentType': 'image/png',
'width': 20,
'height': 20
});
break;
case 'esriGeometryPolygon':
symbol = new SimpleFillSymbol(SimpleFillSymbol.STYLE_SOLID,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([112, 112, 112]), 1), new Color([136, 136, 136, 0.25]));
break;
}
if (symbol) {
layer.setRenderer(new SimpleRenderer(symbol));
}
}
var portalUrl=”https://www.arcgis.com";
esriConfig.defaults.io.proxyUrl=“/proxy/”;
on(dojo.byId(“uploadForm”),“change”,函数(事件){
var fileName=event.target.value.toLowerCase();
if(fileName.indexOf(“.zip”)!==-1){//是一个zip文件-如果不是,通知用户
generateFeatureCollection(文件名);
}
否则{
警报(“将shapefile添加为.zip文件”);
}
});
函数generateFeatureCollection(文件名){
var name=fileName.split(“.”);
名称=名称[0]。替换(“c:\\fakepath\\”,“”);
变量参数={
“名称”:名称,
“targetSR”:map.spatialReference,
“maxRecordCount”:1000,
“enforceInputFileSizeLimit”:true,
“enforceOutputJsonSizeLimit”:真
};
//var extent=scaleUtils.getExtentForScale(映射,40000);
var区段=esri.geometry.getExtentForScale(映射,40000);
var resolution=extent.getWidth()/map.width;
params.generalize=true;
params.maxAllowableOffset=分辨率;
params.reducePrecision=true;
params.numberOfDigitsAfterDecimal=0;
var myContent={
“文件类型”:“shapefile”,
“publishParameters”:JSON.stringify(params),
‘f’:‘json’,
//'callback.html':'textarea'
};
电子请求({
url:portalUrl+'/sharing/rest/content/features/generate',
内容:myContent,
表单:dojo.byId('uploadForm'),
handleAs:'json',
加载:lang.hitch(此,功能(响应){
var layerName=response.FeatureCollection.layers[0].layerDefinition.name;
addShapefileToMap(response.FeatureCollection);
}),
//错误:lang.hitch(此为errorHandler)
});
}
函数addShapefileToMap(功能集合){
var全范围;
var层=[];
arrayUtils.forEach(featureCollection.layers,函数(层){
var infoTemplate=新的infoTemplate(“详细信息”,“${*}”);
var featureLayer=新的featureLayer(图层{
infoTemplate:infoTemplate
});
featureLayer.on('click',函数(事件){
map.infoWindow.setFeatures([event.graphic]);
});
changeRenderer(featureLayer);
全域=全域?
联合(featureLayer.fullExtent):featureLayer.fullExtent;
图层。推送(featureLayer);
});
添加图层(图层);
map.setExtent(fullExtent.expand(1.25),true);
}
函数更改渲染器(层){
//更改多边形和点的要素集合的默认符号
var符号=null;
开关(layer.geometryType){
案例“ESRIGEMETRYPOINT”:
symbol=新图片标记symbol({
“角度”:0,
“xoffset”:0,
“yoffset”:0,
“类型”:“ESRIMPS”,
“url”:”https://static.arcgis.com/images/Symbols/Shapes/BluePin1LargeB.png',
“contentType”:“image/png”,
“宽度”:20,
身高:20
});
打破
案例“ESRIGEMETRYPOLYGON”:
symbol=新的SimpleFillSymbol(SimpleFillSymbol.STYLE\u实体,
新SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
新颜色([112112112]),1),新颜色([1361360.25]);
打破
}
如果(符号){
setRenderer(新的SimpleRenderer(符号));
}
}
好吧,我检查了您的JSFIDLE和ATTED代码,发现其中少了几项-
var映射;
要求([
“esri/config”,
“esri/InfoTemplate”,
“esri/map”,
“esri/请求”,
“esri/几何体/标度”,
“esri/图层/功能图层”,
“esri/渲染器/简单渲染器”,
“esri/symbols/PictureMarkerSymbol”,
“esri/symbols/SimpleFillSymbol”,
“esri/symbols/SimpleLineSymbol”,
“dojo/dom”,
“dojo/json”,
“dojo/on”,
“dojo/parser”,
“dojo/sniff”,
“dojo/_基/阵列”,
“esri/Color”,
“dojo/_base/lang”,
“dijit/layout/BorderContainer”,
“dijit/layout/ContentPane”,
“dojo/domReady!”
],
作用(
esriConfig、信息模板、映射、请求、缩放、FeatureLayer、,
SimpleRenderer,PictureMarkerSymbol,SimpleFillSymbol,SimpleLineSymbol,
dom、JSON、on、解析器、嗅探、arrayUtils、颜色、语言
) {
parser.parse();
var portalUrl=”https://www.arcgis.com";
esriConfig.defaults.io.proxyUrl=“/proxy/”;
on(dojo.byId(“uploadForm”),“change”,函数(事件){
var fileName=event.target.value.toLowerCase();
如果(fileName.indexOf(“.zip”)!==-1){//文件是zip-i吗