使用Javascript API
目前我正在使用ArcGIS Javascript API构建一个Web应用程序。
我可以在地图图形中添加标记，在添加标记请求时，我使用像这样的弹出模板为该标记设置了一些属性
map.graphics.add(new Graphic(evt.geometry, symbol, PointAtt, popupTemplate));
在这里，我想问一下，我如何在Map Runtime中编辑这些属性，因为我想对属性进行一些更改。
<script src="https://js.arcgis.com/3.17/"></script>
<script>
var map, tb;
var otherWindow;
var PointAtt = {};
require([
"esri/map",
"esri/toolbars/draw",
"esri/dijit/PopupTemplate",
"esri/symbols/SimpleMarkerSymbol", "esri/symbols/SimpleLineSymbol",
"esri/symbols/PictureFillSymbol", "esri/symbols/CartographicLineSymbol",
"esri/graphic",
"esri/Color", "dojo/dom", "dojo/on",
"dojo/domReady!"
], function (
Map, Draw, PopupTemplate,
SimpleMarkerSymbol, SimpleLineSymbol,
PictureFillSymbol, CartographicLineSymbol,
Graphic,
Color, dom, on) {
map = new Map("mapDiv", {
basemap : "streets",
center : [-25.312, 34.307],
zoom : 3
});
otherWindow = window.open("integrationPage.html", "otherWindow");
map.on("load", initToolbar);
// markerSymbol is used for point and multipoint, see http://raphaeljs.com/icons/#talkq for more examples
var markerSymbol = new SimpleMarkerSymbol();
markerSymbol.setPath("M16,4.938c-7.732,0-14,4.701-14,10.5c0,1.981,0.741,3.833,2.016,5.414L2,25.272l5.613-1.44c2.339,1.316,5.237,2.106,8.387,2.106c7.732,0,14-4.701,14-10.5S23.732,4.938,16,4.938zM16.868,21.375h-1.969v-1.889h1.969V21.375zM16.772,18.094h-1.777l-0.176-8.083h2.113L16.772,18.094z");
markerSymbol.setColor(new Color("#00FFFF"));
// lineSymbol used for freehand polyline, polyline and line.
var lineSymbol = new CartographicLineSymbol(
CartographicLineSymbol.STYLE_SOLID,
new Color([255, 0, 0]), 10,
CartographicLineSymbol.CAP_ROUND,
CartographicLineSymbol.JOIN_MITER, 5);
// fill symbol used for extent, polygon and freehand polygon, use a picture fill symbol
// the images folder contains additional fill images, other options: sand.png, swamp.png or stiple.png
var fillSymbol = new PictureFillSymbol(
"images/mangrove.png",
new SimpleLineSymbol(
SimpleLineSymbol.STYLE_SOLID,
new Color('#000'),
1),
42,
42);
function initToolbar() {
tb = new Draw(map);
tb.on("draw-end", addGraphic);
// Get Marker Click Event
map.graphics.on("click", function (evt) {
// alert("Marker Clicked");
var lat = evt.mapPoint.getLatitude();
var lon = evt.mapPoint.getLongitude();
var sendEvent = [];
sendEvent[0] = evt.graphic.attributes.ID;
sendEvent[1] = evt.mapPoint.getLatitude();
sendEvent[2] = evt.mapPoint.getLongitude();
// Sending event to other html page
otherWindow.postMessage(sendEvent, "http://localhost:9090");
});
// event delegation so a click handler is not
// needed for each individual button
on(dom.byId("info"), "click", function (evt) {
if (evt.target.id === "info") {
return;
}
var tool = evt.target.id.toLowerCase();
map.disableMapNavigation();
tb.activate(tool);
});
}
function addGraphic(evt) {
// deactivate the toolbar and clear existing graphics
tb.deactivate();
map.enableMapNavigation();
var sendEvent = []; // Array which is sent to other sources
var counter = 0;
sendEvent[0] = "added"
sendEvent[1] = evt.geometry.getLatitude();
sendEvent[2] = evt.geometry.getLongitude();
otherWindow.postMessage(sendEvent, "http://localhost:9090");
// Marker ID is being received from the Key Generator
window.addEventListener("message", function (event) {
var receivedEvent;
console.log("onMessage::" + event.data);
receivedEvent = event.data;
if (receivedEvent[0] == "added" && counter == 0) {
PointAtt = {
Name : "Islamabad", // The name of the pipeline
Type : "City", // The owner of the pipeline
ID : receivedEvent[1],// The length of the pipeline
Latitude : evt.geometry.getLatitude(),
Longitude: evt.geometry.getLongitude()
};
var popupTemplate = new PopupTemplate({
title : "{*}", // The title of the popup will be the name of the pipeline
content : "{*}" // Displays a table of all the attributes in the popup
})
// figure out which symbol to use
var symbol;
if (evt.geometry.type === "point" || evt.geometry.type === "multipoint") {
symbol = markerSymbol;
} else if (evt.geometry.type === "line" || evt.geometry.type === "polyline") {
symbol = lineSymbol;
} else {
symbol = fillSymbol;
}
map.graphics.add(new Graphic(evt.geometry, symbol, PointAtt, popupTemplate));
counter = counter + 1;
event.data = "";
}
}, false);
}
});
2 个答案:
答案 0 :(得分：0)
嗯，实施起来似乎很直接。您可以使用 setter 属性方法。它将直接更新地图上现有的 attributes/Values 功能。
使用以下代码 -
var attributeObject = {"name":"updatedNmme","value":"updatedValue"};
graphicsObject.setAttributes(attributeObject );
注意 - 它会删除所有现有属性并添加新属性（ attributeObject ）到图形，所以如果你想保留一些现有属性，那么也可以在 attributeObject.
希望这会对您有所帮助：）
P.S。 如果您希望获得准确的解决方案，建议您始终在此处添加完整代码。但是上面的代码将解决您的问题。
答案 1 :(得分：0)
您可以使用 esri AttributeInspector 。虽然它适用于要素图层，但您可以相应地对其进行自定义。
您可以在地图上创建要素图层并向其添加图形并将其传递给layerInfos 或您可以覆盖属性检查器，以便也支持图形层。
使用以下代码 -
//add a save button next to the delete button
var saveButton = new Button({ label: "Save", "class": "saveButton"},domConstruct.create("div"));
domConstruct.place(saveButton.domNode, attInspector.deleteBtn.domNode, "after");
saveButton.on("click", function() {
updateFeature.getLayer().applyEdits(null, [updateFeature], null);
});
attInspector.on("attribute-change", function(evt) {
//store the updates to apply when the save button is clicked
updateFeature.attributes[evt.fieldName] = evt.fieldValue;
});
attInspector.on("next", function(evt) {
updateFeature = evt.feature;
console.log("Next " + updateFeature.attributes.OBJECTID);
});
对于属性检查器please click here...
以下是要素图层的工作代码 -
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<title>Editable FeatureLayer with Attribute Inspector</title>
<link rel="stylesheet" href="https://js.arcgis.com/3.18/dijit/themes/claro/claro.css">
<link rel="stylesheet" href="https://js.arcgis.com/3.18/esri/css/esri.css">
<style>
html, body, #mapDiv{
height: 100%;
width: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
#detailPane{
padding: 6px;
height:20px;
color:#570026;
font-size:12pt;
font-weight:600;
overflow: hidden;
}
.dj_ie .infowindow .window .top .right .user .content { position: relative; }
.dj_ie .simpleInfoWindow .content {position: relative;}
.esriAttributeInspector .atiLayerName {display:none;}
</style>
<script src="https://js.arcgis.com/3.18/"></script>
<script>
var map, updateFeature;
require([
"esri/map",
"esri/layers/FeatureLayer",
"esri/dijit/AttributeInspector",
"esri/symbols/SimpleLineSymbol",
"esri/symbols/SimpleMarkerSymbol",
"esri/Color",
"esri/renderers/UniqueValueRenderer",
"esri/config",
"esri/tasks/query",
"dojo/dom-construct",
"dijit/form/Button",
"dojo/domReady!"
], function(
Map, FeatureLayer, AttributeInspector,
SimpleLineSymbol, SimpleMarkerSymbol, Color, UniqueValueRenderer,
esriConfig,
Query, domConstruct, Button
) {
// refer to "Using the Proxy Page" for more information: https://developers.arcgis.com/javascript/3/jshelp/ags_proxy.html
esriConfig.defaults.io.proxyUrl = "/proxy/";
map = new Map("mapDiv", {
basemap: "dark-gray",
center: [-97.395, 37.537],
zoom: 5
});
map.on("layers-add-result", initSelectToolbar);
//Feature Layer representing 2015 men's NCAA basketball tournament teams
var teamsFL = new FeatureLayer("https://services.arcgis.com/V6ZHFr6zdgNZuVG0/arcgis/rest/services/NCAA_Tourney_2015/FeatureServer/1", {
outFields: ["University", "WINPER", "Rd_64_Venue", "Rd_64_Result", "Rd_64_Margin"]
});
var selectionSymbol = new SimpleMarkerSymbol(
SimpleMarkerSymbol.STYLE_CIRCLE, 6,
new SimpleLineSymbol(
"solid",
new Color([255,0,0,0.5]),
4
),
new Color("#ED3939")
);
var defaultSymbol = new SimpleMarkerSymbol(
SimpleMarkerSymbol.STYLE_CIRCLE, 7,
null,
new Color([255,255,255])
);
teamsFL.setSelectionSymbol(selectionSymbol);
//Symbolize features by W/L record
var recordRenderer = new UniqueValueRenderer(defaultSymbol, "Rd_64_Result");
recordRenderer.addValue("W", new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE, 7, null, new Color([93,240,79])));
recordRenderer.addValue("L", new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE, 7, null, new Color([240,146,79])));
teamsFL.setRenderer(recordRenderer);
map.addLayers([teamsFL]);
function initSelectToolbar(evt) {
var teamsFL = evt.layers[0].layer;
var selectQuery = new Query();
map.on("click", function(evt) {
selectQuery.geometry = evt.mapPoint;
selectQuery.distance = 50;
selectQuery.units = "miles"
selectQuery.returnGeometry = true;
teamsFL.selectFeatures(selectQuery, FeatureLayer.SELECTION_NEW, function(features) {
if (features.length > 0) {
//store the current feature
updateFeature = features[0];
map.infoWindow.setTitle(features[0].getLayer().name);
map.infoWindow.show(evt.screenPoint, map.getInfoWindowAnchor(evt.screenPoint));
}
else {
map.infoWindow.hide();
}
});
});
map.infoWindow.on("hide", function() {
teamsFL.clearSelection();
});
var layerInfos = [
{
'featureLayer': teamsFL,
'showAttachments': false,
'isEditable': true,
'fieldInfos': [
{'fieldName': 'University', 'isEditable': false, 'label': 'School:'},
{'fieldName': 'WINPER', 'isEditable': true, 'tooltip': 'Win percentage', 'label': 'Win percentage:'},
{'fieldName': 'Rd_64_Venue', 'isEditable': false, 'label': 'Rd 1 Venue:'},
{'fieldName': 'Rd_64_Result', 'isEditable': true, 'tooltip': 'First round result (W/L)', 'label': 'Rd 1 Result:'},
{'fieldName': 'Rd_64_Margin', 'isEditable': true, 'tooltip': 'First round margin of victory/loss', 'label': 'Rd 1 Margin:'}
]
}
];
//Initialize Attribute Inspector
var attInspector = new AttributeInspector({
layerInfos: layerInfos
}, domConstruct.create("div"));
//add a save button next to the delete button
var saveButton = new Button({ label: "Save", "class": "saveButton"},domConstruct.create("div"));
domConstruct.place(saveButton.domNode, attInspector.deleteBtn.domNode, "after");
saveButton.on("click", function() {
updateFeature.getLayer().applyEdits(null, [updateFeature], null);
});
attInspector.on("attribute-change", function(evt) {
//store the updates to apply when the save button is clicked
updateFeature.attributes[evt.fieldName] = evt.fieldValue;
});
attInspector.on("next", function(evt) {
updateFeature = evt.feature;
console.log("Next " + updateFeature.attributes.OBJECTID);
});
attInspector.on("delete", function(evt) {
evt.feature.getLayer().applyEdits(null, null, [evt.feature]);
map.infoWindow.hide();
});
map.infoWindow.setContent(attInspector.domNode);
map.infoWindow.resize(350, 240);
}
});
</script>
</head>
<body class="claro">
<div id="detailPane">
Click to display the attribute inspector for all NCAA men's basketball tournament teams within 50 miles of click.
</div>
<div id="mapDiv"></div>
</body>
</html>
<强> 输出： -
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