//Use the ArcGIS REST API to create a profile line based on the input geometry
public async Task<Polyline> GetProfileLine(Geometry geometry)
{
try
{
string requestUrlBase = @"http://elevation.arcgis.com/arcgis/rest/services/Tools/Elevation/GPServer/Profile/";
//Create the token to use
TokenService elevationServices = new TokenService();
_token = await elevationServices.GenerateTokenAsync();
#region Submit a profile task to be executed asynchronously. A unique job ID will be assigned for the transaction.
string oidField = "OID";
string lengthField = "Shape_Length";
string InputLineFeatures = CreateInputLineFeaturesJson(geometry, oidField, lengthField);
string additonalParams = "&ProfileIDField=" + oidField + "&DEMResolution=FINEST&MaximumSampleDistance=10&MaximumSampleDistanceUnits=Kilometers&returnZ=true&returnM=true&env%3AoutSR=102100&env%3AprocessSR=102100&f=json";
string profileServiceUrl = string.Format("{0}submitJob?token={1}&InputLineFeatures={2}{3}", requestUrlBase, _token.AccessToken, InputLineFeatures, additonalParams);
System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(profileServiceUrl);
webRequest.Timeout = 0xea60;
System.Net.WebResponse response = await webRequest.GetResponseAsync();
#endregion
#region Use the jobId to check the status of the job. Keep checking if the jobStatus is not "Succeeded"
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(JobStatus));
_jobStatus = (JobStatus)serializer.ReadObject(response.GetResponseStream() as Stream);
while (_jobStatus.Status.Contains("Executing") || _jobStatus.Status.Contains("esriJobWaiting") || _jobStatus.Status.Contains("Submitted"))
{
string statusUrl = string.Format("{0}jobs/{1}?f=pjson&token={2}", requestUrlBase, _jobStatus.Id, _token.AccessToken);
webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(statusUrl);
response = await webRequest.GetResponseAsync();
_jobStatus = (JobStatus)serializer.ReadObject(response.GetResponseStream());
}
#endregion
#region The job has successfully completed. Use the jobId to retrieve the result, then use the result to create a profile line
if (_jobStatus.Status.Contains("Succeeded"))
{
string resultsUrl = string.Format("{0}jobs/{1}/results/OutputProfile?returnZ=true&returnM=true&f=pjson&token={2}", requestUrlBase, _jobStatus.Id, _token.AccessToken);
webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(resultsUrl);
response = await webRequest.GetResponseAsync();
serializer = new DataContractJsonSerializer(typeof(OutputProfile));
//Parse the result as the output profile line
_outputProfileLine = (OutputProfile)serializer.ReadObject(response.GetResponseStream());
_outputProfileLine.FeatureSet.HasM = true;
_outputProfileLine.FeatureSet.HasZ = true;
//Create a polyline (profile) from the geometry of the output profile line
Polyline profile = new Polyline();
foreach (var points in _outputProfileLine.FeatureSet.Features.FirstOrDefault().Geometry.Paths)
{
PointCollection collection = new PointCollection();
foreach (var point in points)
collection.Add(
new MapPoint(
Convert.ToDouble(point[0]), //[0] is x
Convert.ToDouble(point[1]), //[1] is x
Convert.ToDouble(point[2]), //[2] is z
Convert.ToDouble(point[3]), //[3] is m
new ESRI.ArcGIS.Client.Geometry.SpatialReference(102100)));
profile.Paths.Add(collection);
}
return profile;
}
return null;
#endregion
}
catch (Exception)
{
return null;
}
}
/// <summary>
/// Create a .pdf document based on location and buffer radius
/// </summary>
public async Task<string> GetReportGenerationAsync(ESRI.ArcGIS.Client.Graphic feature, int bufferRadius, int wkid)
{
//Create a token so we can gain access to the geoenrich service
TokenService tokenService = new TokenService();
Token = await tokenService.GenerateTokenAsync();
string pdfLocation = Assembly.GetExecutingAssembly().Location;
pdfLocation = pdfLocation.Replace(".dll", ".pdf");
if (File.Exists(pdfLocation))
File.Delete(pdfLocation);
if (bufferRadius <= 0) bufferRadius = 3;
MapPoint currentLocation = feature.Geometry as MapPoint;
string token = string.Format("&token={0}", Token.AccessToken);
string studyAreas = "&studyareas=[{\"geometry\":{\"x\":" + currentLocation.X + ",\"y\":" + currentLocation.Y + "}}]";
string format = "&format=pdf";
string studyareasoptions = string.Format("&studyareasoptions=%7B%22areaType%22%3A%22RingBuffer%22%2C%22bufferUnits%22%3A%22esriMiles%22%2C%22bufferRadii%22%3A%5B{0}%5D%7D", bufferRadius);
string insr = string.Format("&inSR={0}", wkid);
string f = "&f=bin";
string reportGenerationUrl =
@"http://geoenrich.arcgis.com/arcgis/rest/services/World/MapServer/exts/BAServer/Geoenrichment/CreateReport?" + token + studyAreas + format + studyareasoptions + insr + f;
#region Issue the request to generate a report
WebResponse response;
try
{
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(reportGenerationUrl);
webRequest.Timeout = 0xea60;
response = await webRequest.GetResponseAsync();
if (response == null || response.ContentLength == 0)
return null;
}
catch
{
return null;
}
#endregion
#region Read the result into pdfLocation
try
{
using (Stream responseStream = response.GetResponseStream())
{
using (FileStream fileStream = new FileStream(pdfLocation, FileMode.Create))
{
byte[] buffer = new byte[4096];
int bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length);
while (bytesRead > 0)
{
await fileStream.WriteAsync(buffer, 0, bytesRead);
bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length);
}
}
}
}
catch
{
return null;
}
#endregion
return pdfLocation;
}
/// <summary>
/// Create a .pdf document based on location and buffer radius
/// </summary>
public async Task <string> GetReportGenerationAsync(ESRI.ArcGIS.Client.Graphic feature, int bufferRadius, int wkid)
{
//Create a token so we can gain access to the geoenrich service
TokenService tokenService = new TokenService();
Token = await tokenService.GenerateTokenAsync();
string pdfLocation = Assembly.GetExecutingAssembly().Location;
pdfLocation = pdfLocation.Replace(".dll", ".pdf");
if (File.Exists(pdfLocation))
{
File.Delete(pdfLocation);
}
if (bufferRadius <= 0)
{
bufferRadius = 3;
}
MapPoint currentLocation = feature.Geometry as MapPoint;
string token = string.Format("&token={0}", Token.AccessToken);
string studyAreas = "&studyareas=[{\"geometry\":{\"x\":" + currentLocation.X + ",\"y\":" + currentLocation.Y + "}}]";
string format = "&format=pdf";
string studyareasoptions = string.Format("&studyareasoptions=%7B%22areaType%22%3A%22RingBuffer%22%2C%22bufferUnits%22%3A%22esriMiles%22%2C%22bufferRadii%22%3A%5B{0}%5D%7D", bufferRadius);
string insr = string.Format("&inSR={0}", wkid);
string f = "&f=bin";
string reportGenerationUrl =
@"http://geoenrich.arcgis.com/arcgis/rest/services/World/MapServer/exts/BAServer/Geoenrichment/CreateReport?" + token + studyAreas + format + studyareasoptions + insr + f;
#region Issue the request to generate a report
WebResponse response;
try
{
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(reportGenerationUrl);
webRequest.Timeout = 0xea60;
response = await webRequest.GetResponseAsync();
if (response == null || response.ContentLength == 0)
{
return(null);
}
}
catch
{
return(null);
}
#endregion
#region Read the result into pdfLocation
try
{
using (Stream responseStream = response.GetResponseStream())
{
using (FileStream fileStream = new FileStream(pdfLocation, FileMode.Create))
{
byte[] buffer = new byte[4096];
int bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length);
while (bytesRead > 0)
{
await fileStream.WriteAsync(buffer, 0, bytesRead);
bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length);
}
}
}
}
catch
{
return(null);
}
#endregion
return(pdfLocation);
}