网络分析(最近设施)

dojo.require("esri.tasks.closestfacility");
var closestFacilityTask, params;
var facilityPointGraphicsLayerName = "facilityPointGraphicsLayer";
var incidentPointGraphicsLayerName = "incidentPointGraphicsLayer";
var routeGraphicsLayerName = "routeGraphicsLayer";
var facilitiesGraphicsLayer = null;
var incidentsGraphicsLayer = null;
var routeGraphicLayer = null;
var mapOnClick_addIncidents_connect, mapOnClick_addFacilities_connect;
//安置点符号
function getFacilitySymbol()
{
var facilityPointSymbol = new esri.symbol.SimpleMarkerSymbol(esri.symbol.SimpleMarkerSymbol.STYLE_SQUARE, 20,
new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([89,95,35]), 2), new dojo.Color([130,159,83,0.40])
);
return facilityPointSymbol;
}
//转移点符号
function getIncidentSymbol()
{
var incidentPointSymbol = new esri.symbol.SimpleMarkerSymbol(esri.symbol.SimpleMarkerSymbol.STYLE_CIRCLE, 16,
new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([89,95,35]), 2), new dojo.Color([130,159,83,0.40])
);
return incidentPointSymbol;
}
//路径符号
function getRouteSymbol()
{
var routePolylineSymbol = new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([89,95,35]), 4.0);
return routePolylineSymbol;
}
//安置点高亮符号
function getFacilityHighlightSymbol()
{
var facilityHighlightSymbol = new esri.symbol.SimpleMarkerSymbol(esri.symbol.SimpleMarkerSymbol.STYLE_CIRCLE, 16,
new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([255,255,0]), 2), new dojo.Color([255,0,0,0.40])
);
return facilityHighlightSymbol;
}
//转移点高亮符号
function getIncidentHighlightSymbol()
{
var highlightSymbol = new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([0,255,255],0.25), 4.5);
return highlightSymbol;
}
//路径高亮符号
function getRouteHighlightSymbol()
{
var routePolylineSymbol = new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([255,0,0]), 4.0);
return routePolylineSymbol;
}
//安置点图层
function getFacilityPointGraphicsLayer()
{
if(facilitiesGraphicsLayer == null)
{
facilitiesGraphicsLayer = getGraphicsLayer(facilityPointGraphicsLayerName);
var facilityPointSymbol = getFacilitySymbol();
var facilityRenderer = new esri.renderer.SimpleRenderer(facilityPointSymbol);
facilitiesGraphicsLayer.setRenderer(facilityRenderer);
}
return facilitiesGraphicsLayer;
}
//转移点图层
function getIncidentPointGraphicsLayer()
{
if(incidentsGraphicsLayer == null)
{
incidentsGraphicsLayer = getGraphicsLayer(incidentPointGraphicsLayerName);
var incidentPointSymbol = getIncidentSymbol();
var incidentsRenderer = new esri.renderer.SimpleRenderer(incidentPointSymbol);
incidentsGraphicsLayer.setRenderer(incidentsRenderer);
//高亮显示

map.graphics.enableMouseEvents();
dojo.connect(incidentsGraphicsLayer,"onMouseOver", function(evt){
var graphic = evt.graphic;
map.graphics.clear();
var routeGraphicsLayer = getRouteGraphicsLayer();
var facilityPointGraphicsLayer = getFacilityPointGraphicsLayer();
for(var i=0; i<routeGraphicsLayer.graphics.length; i++)
{
var graphicRoute = routeGraphicsLayer.graphics[i];
if(graphic.attributes && graphicRoute.attributes.IncidentID==graphic.attributes.ObjectID)
{
var highlightSymbol = getRouteHighlightSymbol();
var highlightGraphic = new esri.Graphic(graphicRoute.geometry,highlightSymbol);
map.graphics.add(highlightGraphic);
//

var FacilityID = graphicRoute.attributes.FacilityID;
for(var i=0; i<facilityPointGraphicsLayer.graphics.length; i++)
{
var graphicFacility = facilityPointGraphicsLayer.graphics[i];
if(graphicFacility.attributes && graphicFacility.attributes.ObjectID==FacilityID)
{
var facilityHighlightSymbol = getFacilityHighlightSymbol();
var highlightGraphic = new esri.Graphic(graphicFacility.geometry,facilityHighlightSymbol);
map.graphics.add(highlightGraphic);
}
}
}
}
});
dojo.connect(incidentsGraphicsLayer,"onMouseOut", function(evt){
//alert("OK");

map.graphics.clear();
});
}
return incidentsGraphicsLayer;
}
//路径图层
function getRouteGraphicsLayer()
{
if(routeGraphicLayer == null)
{
routeGraphicLayer = getGraphicsLayer(routeGraphicsLayerName);
var routePolylineSymbol = getRouteSymbol();
var routeRenderer = new esri.renderer.SimpleRenderer(routePolylineSymbol);
routeGraphicLayer.setRenderer(routeRenderer);
}
return routeGraphicLayer;
}
/********************************************/
//添加转移点
function addIncidents() {
removeEventHandlers();
mapOnClick_addIncidents_connect = dojo.connect(map, "onClick", addIncident);
}
//添加转移点事件响应
function addIncident(evt) {
var inPoint = new esri.geometry.Point(evt.mapPoint.x,evt.mapPoint.y,map.spatialReference);
var location = new esri.Graphic(inPoint);
graphicsLayer = getIncidentPointGraphicsLayer();
graphicsLayer.add(location);
params.incidents.features.push(location);
}
//添除转移点
function clearIncidents() {
removeEventHandlers();
graphicsLayer = getIncidentPointGraphicsLayer();
for (var i=params.incidents.features.length-1; i>=0; i--) {
graphicsLayer.remove(params.incidents.features.splice(i, 1)[0]);
}
params.incidents.features = [];
}
/********************************************/
//添加安置点
function addFacilities() {
removeEventHandlers();
mapOnClick_addFacilities_connect = dojo.connect(map, "onClick", addFacility);
}
//添加安置点事件响应
function addFacility(evt) {
var inPoint = new esri.geometry.Point(evt.mapPoint.x,evt.mapPoint.y,map.spatialReference);
var location = new esri.Graphic(inPoint);
graphicsLayer = getFacilityPointGraphicsLayer();
graphicsLayer.add(location);
params.facilities.features.push(location);
}
//添除安置点
function clearFacilities() {
removeEventHandlers();
graphicsLayer = getFacilityPointGraphicsLayer();
for (var i=params.facilities.features.length-1; i>=0; i--) {
graphicsLayer.remove(params.facilities.features.splice(i, 1)[0]);
}
params.facilities.features = [];
}
/********************************************/
//取消添加安置点与转移点事件
function removeEventHandlers() {
dojo.disconnect(mapOnClick_addIncidents_connect);
dojo.disconnect(mapOnClick_addFacilities_connect);
}
//进行路径分析
function solveClosestFacility() {
if(params.incidents.features.length<1) return;
removeEventHandlers();
/*
params.facilities = [];
closestFacilityTask.solve(params,completeCallback,errorCallback);
*/
var geometryArray = [];
for(var i=0; i<params.incidents.features.length; i++)
{
geometryArray.push(params.incidents.features[i].geometry);
}
var bufferParameters = new esri.tasks.BufferParameters();
bufferParameters.distances = [4];
bufferParameters.bufferSpatialReference = map.spatialReference;
bufferParameters.outSpatialReference = map.spatialReference;
bufferParameters.unit = esri.tasks.GeometryService.UNIT_KILOMETER;
bufferParameters.geometries = geometryArray;
geometryService.buffer(bufferParameters, function (bufferedGeometries){
geometryService.union(bufferedGeometries, function (unionGeometry){
//var urlArray = ["http://10.1.102.171:6080/arcgis/rest/services/jcxx/TranferRoad/MapServer/13"];
var urlArray = config.operatorLayers.placement;
var fieldsArray = [];
var sql = "1=1";
GisLayerAccess(urlArray, fieldsArray, sql, unionGeometry, function (resultData){
var facilities = new esri.tasks.FeatureSet();
facilities.features = resultData[0].features;
params.facilities = facilities;
closestFacilityTask.solve(params,completeCallback,errorCallback);
}, true, true, true);
});
});
function completeCallback(solveResult)
{
//alert(Ext.encode(solveResult));
var routeGraphicLayer = getRouteGraphicsLayer();
var facilityPointGraphicsLayer = getFacilityPointGraphicsLayer();
var incidentPointGraphicsLayer = getIncidentPointGraphicsLayer();
//var directions = solveResult.directions;
var routes = solveResult.routes;
var facilities = solveResult.facilities;
var incidents = solveResult.incidents;
routeGraphicLayer.clear();
for(var i=0; i<routes.length; i++)
{
var route = routes[i];
routeGraphicLayer.add(route);
}
//

facilityPointGraphicsLayer.clear();
for(var i=0; i<facilities.length; i++)
{
var facility = facilities[i];
facilityPointGraphicsLayer.add(facility);
}
//

incidentPointGraphicsLayer.clear();
for(var i=0; i<incidents.length; i++)
{
var incident = incidents[i];
incidentPointGraphicsLayer.add(incident);
}
if(solveResult.messages.length > 0){
//alert(solveResult.messages[0]);

}
}
function errorCallback(err)
{
Ext.encode(err);
}
}
//初始化网络分析功能
function initNetwork() {
params = new esri.tasks.ClosestFacilityParameters();
params.travelDirection = esri.tasks.NATravelDirection.TO_FACILITY;
params.defaultTargetFacilityCount = 1;
params.impedenceAttribute = "METERS";
//params.impedenceAttributeName = "METERS";
params.directionsTimeAttribute = "MINUTES";
//params.directionsTimeAttributeName = "MINUTES";
params.restrictUTurns = esri.tasks.NAUTurn.ALLOW_BACKTRACK;
params.useHierarchy = false;
params.returnDirections = false;
params.returnRoutes = true;
params.returnFacilities = true;
params.returnIncidents = true;
params.returnPointBarriers = false;
params.returnPolygonBarriers = false;
params.returnPolylineBarriers = false;
//

params.directionsLanguage = "en-US";
params.directionsOutputType = "complete";
params.outputLines = esri.tasks.NAOutputLine.TRUE_SHAPE_WITH_MEASURE;
params.outputGeometryPrecisionUnits = "esriKilometers";
params.directionsLengthUnits = "esriKilometers";
params.timeOfDayUsage = "start";
//

params.facilities = new esri.tasks.FeatureSet();
params.facilities.features = [];
//

params.incidents = new esri.tasks.FeatureSet();
params.incidents.features = [];
//

params.outSpatialReference = map.spatialReference;
closestFacilityTask = new esri.tasks.ClosestFacilityTask(config.map.network.closestFacility);
//("http://10.1.102.171:6080/arcgis/rest/services/jcxx/TranferRoad/NAServer/ClosestFacility");
}
//清除最近设施分析结果
function clearClosestFacilityResult() {
map.graphics.clear();
graphicsLayer = getFacilityPointGraphicsLayer();
graphicsLayer.clear();
graphicsLayer = getIncidentPointGraphicsLayer();
graphicsLayer.clear();
graphicsLayer = getRouteGraphicsLayer();
graphicsLayer.clear();
clearParams();
}
//清除最近设施分析参数
function clearParams()
{
params.facilities.features = [];
params.incidents.features = [];
}