private async void ExecuteGPService()
{
//加载DEM并且缩放到该区域
Map map = new Map(Basemap.CreateTopographic());
string pathToRaster = @"D:\work\github\ExecuteGPK\LasVegasNED13_geoid1.tif";
var myRaster = new Raster(pathToRaster);
// create a RasterLayer using the Raster
var newRasterLayer = new RasterLayer(myRaster);
map.OperationalLayers.Add(newRasterLayer);
Viewpoint viewPoint = new Viewpoint(36.131, -115.144, 800000);
myMapView.Map = map;
await myMapView.SetViewpointAsync(viewPoint, TimeSpan.FromSeconds(2));
StartLocalServer();
LocalGeoprocessingService localServiceGP = new LocalGeoprocessingService(@"D:\work\github\ExecuteGPK\InterpolateShape.gpk");
localServiceGP.ServiceType = GeoprocessingServiceType.SynchronousExecute;
// Handle the status changed event to check when it's loaded
localServiceGP.StatusChanged += async(svc, args) =>
{
// If service started successfully, create a gp task
if (args.Status == LocalServerStatus.Started)
{
// Get the URL for the specific geoprocessing tool
var gpSvcUrl = (svc as LocalGeoprocessingService).Url.AbsoluteUri + "/InterpolateShape";
// Create the geoprocessing task
GeoprocessingTask gpRouteTask = new GeoprocessingTask(new Uri(gpSvcUrl));
GeoprocessingParameters para = new GeoprocessingParameters(GeoprocessingExecutionType.SynchronousExecute);
// Create the schema for a lines table (one text field to contain a name attribute)
var inputFeatures = new FeatureCollectionTable(new List <Field>(), GeometryType.Polyline, myMapView.SpatialReference);
Feature inputFeature = inputFeatures.CreateFeature();
var geometry = await myMapView.SketchEditor.StartAsync(SketchCreationMode.Polyline, false);
inputFeature.Geometry = geometry;
await inputFeatures.AddFeatureAsync(inputFeature);
para.Inputs.Add("inputLine", new GeoprocessingFeatures(inputFeatures));
para.ReturnZ = true;
para.OutputSpatialReference = myMapView.SpatialReference;
GeoprocessingJob routeJob = gpRouteTask.CreateJob(para);
try
{
// Execute analysis and wait for the results
GeoprocessingResult geoprocessingResult = await routeJob.GetResultAsync();
GeoprocessingFeatures resultFeatures = geoprocessingResult.Outputs["outputLine"] as GeoprocessingFeatures;
IFeatureSet interpolateShapeResult = resultFeatures.Features;
Esri.ArcGISRuntime.Geometry.Polyline elevationLine = interpolateShapeResult.First().Geometry as Esri.ArcGISRuntime.Geometry.Polyline;
MapPoint startPoint = elevationLine.Parts[0].Points[0];
int count = elevationLine.Parts[0].PointCount;
MapPoint stopPoint = elevationLine.Parts[0].Points[count - 1];
double chazhi = stopPoint.Z - startPoint.Z;
MessageBox.Show("终点的Z值为: " + stopPoint.Z.ToString() + "，起点的Z值为: " + startPoint.Z.ToString());
}
catch (Exception ex)
{
if (routeJob.Status == JobStatus.Failed && routeJob.Error != null)
{
MessageBox.Show("Executing geoprocessing failed. " + routeJob.Error.Message, "Geoprocessing error");
}
else
{
MessageBox.Show("An error occurred. " + ex.ToString(), "Sample error");
}
}
// Create parameters, run the task, process results, etc.
// ...
}
};
// Start the local geoprocessing service
await localServiceGP.StartAsync();
}
