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Routing with Local Data

JamesMcElroy

I want to do routing with local data instead of using a web service. I've created my Network dataset and route layer successfully. I exported it as a Map Pack and tried using that in the

_routeTask = new RouteTask("D:\\MyRoute.mpk");

line and then when I tried to run the

_routeTask.SolveAsync

command it returns failed with the error:
"An exception occurred during a WebClient request."
with an internal exception of:
"Unable to cast object of type 'System.Net.FileWebRequest' to type 'System.Net.HttpWebRequest'."

So obviously it's expecting a URL and not a filepath in the constructor of the RouteTask, which is interesting since the FindTask and the Locator both accept filepaths.

What am I doing wrong here? Did I go wrong with exporting as a map pack?

Thanks,

James

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BrooksShannon

Ok, the sample GPK is uploaded. You should be able to get to it here:
https://betacommunity.esri.com/files/download.aspx/PointToPointWBarriers.gpk?d=0D08C5CF1E0B4D2380C5ABB16FBDB958&p=18BC10576E2C4606AFED3A8870BFE445&n=2D260C03AB1F498F90DB735EFC041782&s=A76CF05EFE6B4517B249DD9403507710&l=66974DEB93534385A83D793393E1F9F4

Only members of the Beta Community will be able to access it. Let me know if you have troubles.

Hey Ralf,

I hope things are going well! It was great seeing you down in Palm Springs at this year's dev summit.

I've been spending some time developing against the Runtime, and have decided to foray into network analysis. Simple point-to-point routing is sufficient for me, so I've taken some interest in this thread - and your GPK example. Unfortunately, I can't seem to get your sample tool to execute. When I try to run in from within ArcMap, I receive the following: "ERROR 000816: The tool is not valid."

Do you know what might be causing this? I'm trying to execute the tool in 10.1 Prerelease ArcGIS Desktop "Basic". (At the risk of sounding totally naive, could this be a version compatibility thing, since you created the GPK awhile back, pre-prerelease?)

Thanks!
Brooks

MichaelErlich

Update: If I don't add any parameters, it works ok. So, I guess I need to now figure out in our own data how to allow parameters to be added to the request and provide adequate information in the response.

MichaelErlich

When using the gpk provided, I get a ServiceException with 'Unable to Complete Operation'. There is no additional information or inner exception.

Here is the sample code I am using:

Geoprocessor gp = new Geoprocessor(_localGeoService.Tasks[0].Url);
List<GPParameter> parameters = new List<GPParameter>();
FeatureSet featureSet = new FeatureSet();

Graphic gr = new Graphic()
{
Geometry = new MapPoint(-122.41430282592773, 37.79596625790735),
};
featureSet.Features.Add(gr);
gr = new Graphic()
{
Geometry = new MapPoint(-122.44462251663208, 37.77892370057646),
};

featureSet.Features.Add(gr);
GPFeatureRecordSetLayer inputFeatures = new GPFeatureRecordSetLayer("Input_Locations", featureSet);
parameters.Add(inputFeatures);

featureSet = new FeatureSet();
inputFeatures = new GPFeatureRecordSetLayer("Input_Barriers", featureSet);
parameters.Add(inputFeatures);

GPExecuteResults results = gp.Execute(parameters);

LeonKosiba

Hi James,

You�??re not doing anything wrong, at this time the Runtime does not support the RouteTask with local resources. Routing is supported by geoprocessing model and then creating a Geoprocessing Package (gpk) with runtime support enabled from that model. We are looking into adding this support in the future.

Thanks for the sample code, I was able to get a prototype running easily.
When you talk about adding RouteTask in the future, what time frame are you thinking? (making the 10.1 release, or be available in several years)
If I would want the route broken down into segments, instead of one long polyline, do you have any suggestions on how to do this? (so it would be similar to RouteTask)

Thanks
Leon

JamesMcElroy

Hi Ralf,

The model does not run because there are not stops defined in the "Route/Stops" layer and there have to be 2 valid stops. There aren't any stops defined because you told me to remove them

. And even when I had stops in that layer when it ran it didn't create a result that could be exported. Since I don't have a result I can't make a package. But I've emailed you the mxd with all the data as well as the toolbox with the model I created. If you don't get the email it's also on our FTP. It's the file ArvadaRoute.7z.

Thanks,

James

RalfGottschalk

Hi James,

To get access to the data you can do one of two things. Log onto the Beta Community site first and then click the link in the forum and it will let you go through. For some reason it doesn�??t let you put in your credentials from the link itself. Or, if you are already on the site you can get to the gpk by clicking on the resources tab. It will be called �??Samples �?? Point to Point Routing Sample GPK.�?�

It�??s a bit difficult to get to the bottom of what could be going on, does your Model successfully run? One of your screen shots it looked like the parameters were not populated correctly. Are you populating the input parameters from the Model dialog itself? Once it is a feature set you should be able to run the model and when you select the input parameter your cursor will allow you to click on the map to populate the values of the feature set. In one of your screen shots it looks like you are using a list of values, for your input. This is not necessary because a feature set is essentially an in memory feature class and it accepts multiple inputs.

Would it be possible to send me your package?

JamesMcElroy

Hi Ralf,

I get an access denied error trying to download the GPK from the link you provided. My login doesn't appear to be allowed.

As I said in my previous post, my inputs are set as feature set and the schema imported from the route/stops and route/point barriers. I have attached screenshots of the property panes from both.

Thanks,

James

Model5.jpg

Model4.jpg

RalfGottschalk

Bump to make sure you didn't miss my response two post above.

Thanks,

James

James,

Thanks for the bump, I did miss your response. It sounds like your model isn�??t set up correctly. Try downloading the sample GPK and study that and try running it as it is within the Runtime. You can use any service and just zoom to San Francisco to get the right coordinates. I beleive the data will solve if you use WGS 84 for your input points.

You can open the package in ArcMap by double clicking on it; the model will show up in the results window. Then edit the model and replace it with your data. See if you can get that to work, first in ArcMap and then the Runtime.

From your descriptions it sounds like you parameters are not set up properly. To set it to a Feature Set, you have to edit the model and modify the properties of the parameters.

Good luck and let me know how it goes.

JamesMcElroy

Bump to make sure you didn't miss my response two post above.

Thanks,

James

RalfGottschalk

Ok, the sample GPK is uploaded. You should be able to get to it here:
https://betacommunity.esri.com/files/download.aspx/PointToPointWBarriers.gpk?d=0D08C5CF1E0B4D2380C5ABB16FBDB958&p=18BC10576E2C4606AFED3A8870BFE445&n=2D260C03AB1F498F90DB735EFC041782&s=A76CF05EFE6B4517B249DD9403507710&l=66974DEB93534385A83D793393E1F9F4

Only members of the Beta Community will be able to access it. Let me know if you have troubles.

RalfGottschalk

With creating the geoprocessor service via the gpk from your description above, am I correct in that the RouteTask will only work with ESRI's routing service, and that we will need to use GeoProcessor.Execute instead for our own custom routing by supplying the necessary GPParameter list that corresponds to what the REST service call expects as input parameters to create a route?

Also, if the file is too big to post here, feel free to post on the ftp that I provided to you; if you don't mind.

Thanks,
Mike

Mike,

You are correct. To do local Point to Point routing you will need to do this through the Geoprocessor. Sample code would look something like this:

{
   LocalGeoprocessingService pointToPoint = new LocalGeoprocessingService(@MyGPK.gpk, GPServiceType.Execute);

   pointToPoint.StartAsync((x) =>
   {
      if (x.Error != null)
          MessageBox.Show("Error creating local GP service:\n" + x.Error.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
   });

}

// Write some code to populate input Graphics either from a geocode or whatever you like.
// {
// {

// Execute the tool
{
   Geoprocessor gp = new Geoprocessor(pointToPoint.UrlGeoprocessingService + "/PointToPointWBarriers");
   gp.ExecuteCompleted += new System.EventHandler<GPExecuteCompleteEventArgs>(gp_ExecuteCompleted);
   gp.Failed += new System.EventHandler<TaskFailedEventArgs>(gp_Failed);

   List<GPParameter> parameters = new List<GPParameter>();
   FeatureSet featureSet = new FeatureSet();
   featureSet.Features.Add(startPoint);
   featureSet.Features.Add(endPoint);
   GPFeatureRecordSetLayer inutFeatures = new GPFeatureRecordSetLayer("Input_Locations", featureSet);
   parameters.Add(inutFeatures);  
}

void gp_ExecuteCompleted(object sender, GPExecuteCompleteEventArgs e)
{
   foreach (GPParameter outParameter in e.Results.OutParameters)
   {
      if (outParameter is GPFeatureRecordSetLayer)
      {
         GPFeatureRecordSetLayer outputFeatures = outParameter as GPFeatureRecordSetLayer;
         foreach (Graphic graphic in outputFeatures.FeatureSet)
         {
             graphic.Symbol = this.Resources["LineSymbol"] as ESRI.ArcGIS.Client.Symbols.SimpleLineSymbol;
             graphicsLayer.Graphics.Add(graphic);
          }
      }
   }
}

I'll upload the sample package to your FTP site if I can't get it in a place where all the beta testers can get to it.

JamesMcElroy

Right-click on them in Model Builder, select Properties, Data Type tab select a Feature Set as the data type, and import the schema from a point feature class. (A blank one with the correct spatial reference is probably best for the initial test.)

Now when you double click on your Model in ArcMap, you will see your Feature Set Parameters get added as Layers to your map. Click on each parameter in the GP tool dialog and populate the parameters. Then run the tool. You should see a resulting route produced on the map.

This is the part that doesn't work. They are set to a feature class type. And I selected "Route/Stops" and "Route/Point Barriers" as the schemas. I don't know what else to set them to, as the only "data" file I have is the street network shape file that I started from. Then when I try to run it I get the error saying there isn't any valid input for a route, because there aren't any stops defined. But when I tried defining stops (see yesterday's post) it didn't give me a result then either.

Am I missing something elementary? I don't have a shape file with "stops" defined. I have a shape file with a road network. I have used that same shape file to create my map pack, my tile pack, my address locator, this is the last piece.

Thanks,

James

Model3.jpg

Model2.jpg

RalfGottschalk

James,

Glad you found that post helpful, I was worried that my post would just cause confusion. Now that you have created the Model you don�??t want to use the Network Analyst toolbar to set your points, instead what you want to do is make sure that your input locations are set to the Feature Set data type. Right-click on them in Model Builder, select Properties, Data Type tab select a Feature Set as the data type, and import the schema from a point feature class. (A blank one with the correct spatial reference is probably best for the initial test.)

Now when you double click on your Model in ArcMap, you will see your Feature Set Parameters get added as Layers to your map. Click on each parameter in the GP tool dialog and populate the parameters. Then run the tool. You should see a resulting route produced on the map. Open the Results Window from the Geoprocessing menu, right-click on that result and share it as a runtime enabled GPK. This will package the data, inputs, and the result.

You can then consume the GPK in the Runtime. I�??ve attached some more pictures that hopefully helps. In the first picture you can see I opened my model and populate the feature set with some points. All my feature set get added as layers in the map automatically when I run the model. Then I run the tool and in the second picture I get a result layer. (This is the output parameter) You can then right click the result and share it as a Geoprocessing Package.

Hi Ralf,

This is very helpful. I was able to basically reproduce the model example in the screenshot you provided, and I added a couple stops to my network analyst toolbar in ArcMap so that it would run. As you can see, it sees the two stops I provided, it says it ran successfully, but it doesn't put a result in the results window for me to be able to export. Am I missing something here on this last piece?

Thanks,

James

PopulateModelParamsArcMap.jpg

ShareResultAsPackage.jpg

MichaelErlich

With creating the geoprocessor service via the gpk from your description above, am I correct in that the RouteTask will only work with ESRI's routing service, and that we will need to use GeoProcessor.Execute instead for our own custom routing by supplying the necessary GPParameter list that corresponds to what the REST service call expects as input parameters to create a route?

Also, if the file is too big to post here, feel free to post on the ftp that I provided to you; if you don't mind.

Thanks,
Mike

JamesMcElroy

Hi Ralf,

This is very helpful. I was able to basically reproduce the model example in the screenshot you provided, and I added a couple stops to my network analyst toolbar in ArcMap so that it would run. As you can see, it sees the two stops I provided, it says it ran successfully, but it doesn't put a result in the results window for me to be able to export. Am I missing something here on this last piece?

Thanks,

James

Model.jpg

RalfGottschalk

In order to run GP tools in the Runtime you really need to build a Model or create a Script tool. James, I know you asked for steps, but I can�??t really describe how to build a model in a forum post, but here is the 10.1 help documentation that gets you started on Model Builder.
http://resourcesbeta.arcgis.com/en/help/main/10.1/index.html#/Tutorial_Creating_tools_with_ModelBuilder/002w0000007v000000/

When you build you model you want to think of it like you are building a Geoprocessing Service, so you need to make sure your input and output parameters are compatible with those of a GP Service.
http://resourcesbeta.arcgis.com/en/help/main/10.1/index.html#/What_is_a_geoprocessing_service/00570000005w000000/

For this you will want to change your input location parameter as a Feature Set.
http://resourcesbeta.arcgis.com/en/help/main/10.1/index.html#//002w00000023000000.htm

So, here are the high level steps to building the model:
1. Enable Runtime support for sharing.
2. Create a Toolbox in ArcCatalog and add a Model to it.
3. Chain together a set of tools using your data, for this type of operation you would chain together Make Route Layer -> Add Locations -> Solve -> Select Data.
4. Set the appropriate inputs as parameters and change them to the appropriate type. In this case the Add Locations tools input, you would change it to a Feature Set type of input. This will allow you to use a GPRecordSetLayer in the API.
5. Run the model
6. Publish the result as a GPK.

Once you have created a GPK you�??ll need to consume it in the Runtime. This is essentially the same as consuming a online GP service.
http://resourcesbeta.arcgis.com/en/help/main/10.1/index.html#/Understanding_task_parameter_properties/005700000070000000/

For Beta 1, when you spin up your service you can paste the URL into a browser and explore the parameters to better understand how to code against it. We are looking at ways to improve so it is easier to get this parameter info without the additional step.

We do have a little doc on creating packages for the Runtime here:
http://resourcesbeta.arcgis.com/en/help/runtime-wpf/help/#/About_Geoprocessing_packages/017000000057000000/

But I do think we need more documentation on this to help customers properly create GPKs, maybe even some sort of tutorial. Our documentation is still a work in progress.

Mike, you wouldn�??t pass the GP service into the Rout Task. The model would handle the creation of the route, and the output parameter would be your routing result.

I have a sample GPK that I am trying to figure out how to share with you guys that does point to point routing using the San Francisco sample data that comes with the standard desktop SDK. It�??s too big to add as an attachment to this forum. I�??ll post where it is when I figure out a way. You could then open this in ArcMap, study it, and switch out the data with your own.

For now I added some pictures of the model, which you hopefully will find useful.

Model.jpg

FeatureSet.jpg

MichaelErlich

Same issue here. I have included the REST output for the URL of both the sample to ESRI's sample site (Route- NetworkAnalaysis ESRI_Route_NA) and the output calling the local service (ArcGISRuntime Server).

The pieces that are missing from my local gpk is the supported operations only include 'Exclude' and is missing 'solve'. Also, I don't see any of the attributes that are part of the RouteTask. So, is there any documentation on how to setup the route layer and/or GPK to include those items so that the gpk can work with the route task? Or is there some other task that should be used for routing with a local service?

The setup code for the service is:
            _localGeoService = new LocalGeoprocessingService(@D:\Map Data\TestRouteLayer.gpk, GPServiceType.Execute);
            _localGeoService.StartCompleted += new EventHandler<EventArgs>(service_StartCompleted);
            _localGeoService.StartAsync();

The setup code for the route task is:
_routeTask = new RouteTask(_localGeoService.Tasks[0].Url);

have also tried: localGeoService.Url and localGeoService.Url + "/Route" for assigning urls to the route task.

REST Output.7z.zip

JamesMcElroy

Update:

From where I was previously, I tried using ArcToolbox/Network Analysis Tools/Make Route Layer, got that to build. Then tried the right-click "share as" option in the result window. This time it made the file for me. I plugged it into my code and tried to do a routeTask and got this exception in the failed event

"Bad request: GET GPServer/solve The specified task was not found."

Now what?

Thanks,

James

JamesMcElroy

This is where I've gotten. As you can see I created a Network Dataset from my road shapefile. That created the road_ND network dataset and the road_ND_Junctions layer. Then I clicked on the "Network Analyst"/"New Route" option on the Network Analyst toolbar. That created the "Route" layer and the items in the Left-hand Network Analyst box.

How do I go from here to a gpx that I can reference in my code to solve routing problems using the RouteTask?

Thanks,

James

Screen.jpg

JamesMcElroy

Hi Ralf,

Thanks for the reply. I'm out of my depth here. All I want to do is work with the SDK, and I don't have much experience using ArcMap. Most of what you just said doesn't make any sense to me.

Below is what I want to do, a how-to or specific instructions would be most appreciated:

I have a shape file that contains a road network. I want to take that and end up with a local dataset (I guess a gpx) that I can use with the LocalGeoprocessingService and RouteTask objects to do routing in my application.

I have managed to use the same file to create both a mpx and an apx to display the data and do geocoding. The last piece is the routing, and creating the gpx for routing appears to be the most complicated. So, how do I create the package needed to do routing from a shape file? Specific steps please or a link to a specific how-to.

Thanks,

James

RalfGottschalk

James,

When using Geoprocessing with the Runtime you want to think of it in a similar way as you would when creating Geoprocessing services for Server. For the Runtime you wouldn�??t just package a single tool. There are certain data types that are not supported as inputs and outputs, so you would want to massage these through the model and have the model produce the result you are looking for, in this case the route.

For example you would build a model that does your routing, something like taking the Make Route Layer -> Add Locations -> Solve -> Select Data and select your routes. Set your Input Locations as a parameter and then change the data type to �??Feature Set�?�. And set the Route result as the output Parameter. Before you package your model you need to enable Runtime support through ArcMap�??s Options window on the Sharing tab. After your run your tool you can package it with Runtime support enabled. This will run a set of analyzers that will tell you if you are using any data types that are not supported, what license level you need your Runtime to be at, and what functionality packages (dlls) you need to include to run this model. Once it�??s packaged, you can then consume it in the Runtime.

JamesMcElroy

*bump*....

JamesMcElroy

Alright, I tried this, but I'm having a different problem. If I right-click my "Make Route Layer" result in ArcGIS and share result as a geoprocessing package it lets me create the gpk, but doesn't have runtime support enabled. But in Catalog, when I run the "Data Management Tools/Package/Package Result" tool and add the same "Make Route Layer" result and check the enable runtime checkbox (see error1a.jpg) it runs immediately, says successful, but doesn't actually create the file (see error1b.jpg). So now what am I doing wrong?

Thanks,

James

error1a.jpg

error1b.jpg

RalfGottschalk

Hi James,

You�??re not doing anything wrong, at this time the Runtime does not support the RouteTask with local resources. Routing is supported by geoprocessing model and then creating a Geoprocessing Package (gpk) with runtime support enabled from that model. We are looking into adding this support in the future.

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