require(["dojo/parser", "dijit/registry", "dojo/_base/array", "dojo/string", "esri/map", "esri/geometry/Extent", "esri/SpatialReference", "esri/
layers/ArcGISTiledMap
ServiceLayer", "esri/toolbars/draw",
"esri/graphic", "esri/symbols/SimpleMarkerSymbol", "esri/symbols/SimpleLineSymbol", "esri/symbols/SimpleFillSymbol", "esri/Color",
"esri/tasks/Geoprocessor", "esri/tasks/FeatureSet", "esri/InfoTemplate", "CustomModules/geomUtils",
"dijit/layout/BorderContainer", "dijit/layout/ContentPane", "dijit/form/Button", "dojo/domReady!"],
function (parser, registry, array, string, Map, Extent, SpatialReference, ArcGISTiledMap
ServiceLayer, Draw,
Graphic, SimpleMarkerSymbol, SimpleLineSymbol, SimpleFillSymbol, Color,
Geoprocessor, FeatureSet, InfoTemplate, geomUtils) {
parser.parse();
var wgs84 = new SpatialReference({ wkid: 4326 });
var extent = new Extent(-117.38917350769043, 32.499704360961914, -116.51026725769043, 33.02292823791504, wgs84)
var map = new esri.Map("map", {
extent: extent
});
map.infoWindow.resize(620, 300);
var streetMap = new ArcGISTiledMap
ServiceLayer("https://server.arcgisonline.com/arcgis/rest/
services/World_Street_Map/MapServer");
map.add
Layer(streetMap);
// 创建符号
var inputSymbol = new SimpleLineSymbol(SimpleLineSymbol.STYLE_DASH, new Color([255, 0, 0]), 2);
var profileSymbol = new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([0, 0, 255]), 3);
// 地理处理服务
gpTask_SurfaceProfile = new Geoprocessor("https://elevation.arcgis.com/arcgis/rest/
services/Tools/ElevationSync/GPServer/Profile");
var drawToolbar = new Draw(map);
drawToolbar.on("draw-end", onDrawEnd);
registry.byId("ProfileTool").on("click", function () {
activateGPTask('LINE');
});
registry.byId("ExecuteProfileTool").on("click", function () {
activateGPTask('POLYLINE');
});
registry.byId("ClearProfilesTool").on("click", function () {
map.infoWindow.hide();
map.graphics.clear();
});
// ACTIVATE THE DRAW TOOLBAR
function activateGPTask(geomType) {
map.infoWindow.hide();
switch (geomType) {
case 'LINE':
drawToolbar.activate(Draw.LINE);
break;
case 'POLYLINE':
drawToolbar.activate(Draw.POLYLINE);
break;
}
}
// CALLED WHEN USER FINISHES DRAWING ON THE SCREEN
function onDrawEnd(evt) {
// CREATE GRAPHIC FEATURE
var userGraphic = new Graphic(evt.geometry, inputSymbol);
// ADD GRAPHIC FEATURE TO MAP
map.graphics.add(userGraphic);
// CREATE PROFILE
//executeGPTask();
var features = [];
features.push(userGraphic);
var featureSet = new FeatureSet();
featureSet.features = features;
// TASK PARAMETERS
var taskParams = {
'Input_Polylines': featureSet,
'Image_Width': 600,
'Image_Height': 250,
'Display_Segments': 'true'
};
// EXECUTE GP TASK
gpTask_SurfaceProfile.setOutputSpatialReference(wgs84);
gpTask_SurfaceProfile.execute(taskParams, getGPResultsAsFeatures);
// DEACTIVATE
drawToolbar.deactivate();
}
// GET GP RESULTS
function getGPResultsAsFeatures(results, messages) {
// PROFILE RESULTS
var profileFeatures = results[0].value.features;
for (var fIdx = 0; fIdx < profileFeatures.length; fIdx++) {
var resultFeature = profileFeatures[fIdx];
var imgHTML = string.substitute('<img id="profileImage_${FID}" src="${profileURL}"></img>', resultFeature.attributes);
resultFeature.setSymbol(profileSymbol);
resultFeature.setInfoTemplate(new InfoTemplate("剖面线长：${length2D} 米", imgHTML));
map.graphics.add(resultFeature);
}
// SHOW INFO WINDOW FOR FIRST RESULT FEATURE
if (profileFeatures.length > 0) {
var firstFeature = profileFeatures[0];
map.infoWindow.setTitle(firstFeature.getTitle());
map.infoWindow.setContent(firstFeature.getContent());
var midPnt = geomUtils.getMidPoint(firstFeature.geometry);
var scrPnt = map.toScreen(midPnt);
map.infoWindow.show(scrPnt, map.getInfoWindowAnchor(scrPnt));
}
}
});
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