Reading Transient Results Viewer From WO.NET

Question

Hello, 
 As part of a research I'm developing right now, I need to obtain from HAMMER the Pressure Series in all nodes of a network under a valve closure scenario. This results are available in HAMMER in the Transient Results Viewer but I'm not really sure how to access this from WO.NET. I have the reference "Haestad.HAMMER.TransientResultsViewer" installed but I'm not really sure how to use it. 
 I hope someone has worked with this before or know how to help me with some guidance. Thanks in advance.

Jesse Dringoli · Answer

Thanks for the details. If you don't mind sharing, what is the reason for needing the entire time series? Does it need to be presented visually in graph form? It would help to understand the end-goal engineering problem that this tool is intended to solve. 
 In the meantime, we'll look into how Waterobjects.NET might be used to extract the transient result time series. These are stored in a different output file than the other results. 
 Note that you can set up multiple scenarios in HAMMER with different operational rules and graph the time series transient results together on the same axis. In the time series tab of the Transient Results Viewer, click the ellipsis button next to "additional scenarios" to select the scenarios to graph.

Jesse Dringoli · Answer

I checked with one of our developers who had the following feedback on extracting HAMMER time series results using Waterobjects.NET: First, need to make sure you are referencing all the Framework-level references that HAMMER uses. This includes, but is not limited to, Haestad.HAMMER.dll, Haestad.WaterGEMS.dll and all the various Framework DLLs (like Haestad.Framework.dll, Haestad.Framework.Windows.Forms.dll, etc). Pretty much anything that one of the WO.Net samples uses when using WaterGEMS-specific API plus the Haestad.HAMMER.dll along with the Haestad.HAMMER.TransientResultsViewer.dll. So, to configure the application from WO.Net do the following: IProjectApplicationModel aprojectApplicationModel = new TorontoApplicationModel(LicensePlatformType.Standalone, Assembly.GetExecutingAssembly().GetName().Version.ToString(), new string[] { }); TorontoParentFormModel aparentFormModel = new TorontoParentFormModel(aprojectApplicationModel); TorontoParentFormUIModel aparentFormUIModel = new TorontoParentFormUIModel(aparentFormModel); aparentFormUIModel.InitializeOnStartUp(); Now, open a HAMMER project which of course has the wtg file extension. aparentFormUIModel.OpenFileWithSpecifiedExtension(filename, false); //filename is a string with the full path and filename of the wtg project i.e. C:\Documents\Project1.wtg The above call returns true if successful, otherwise false. You can use it in an if statement like so: If(aparentFormUIModel.OpenFileWithSpecifiedExtension(filename, false)) { //…Do stuff… } Once the project is opened, you can configure the transient results viewer. TorontoProject project = (TorontoProject)aparentFormModel.CurrentProject; //TorontoProject is in the Haestad.Toronto.Application namespace TransientResultsProjectContext projectContext = new TransientResultsProjectContext(project.ProjectManager, project.TransientResultsViewerProfileElementManager, project.TransientResultsViewerTimeHistoryElementManager, project.TransientResultsViewerNodeHistoryElementManager); From here you should be able to get to anything you need that the transient results viewer does in the main application. The property TimeHistoryList gives you the list that you see for the “Time History” drop-down in the UI. The property is of type IDictionary>. Here is what the ChoicesDelegate uses in the UI: foreach (KeyValuePair> entry in projectContext.HOFResults.TimeHistoryList) { m_timeHistoryList.Add(new DictionaryEntry(entry.Value.Value, entry.Key)); } Entry.Value.Value is the display label (what you see in the drop-down in the UI), entry.Key is the ID behind it. It looks like it is a simple index. Next you need to get the TransientResultsViewerTimeHistoryElement, so do the following: projectContext.TransientResults. TimeHistoryManagerTimeGraphType = (int)TimeHistoryType.Pressure; //TimeHistoryType is in Haestad.HAMMER.TransientResultsViewer.Domain namespace. TransientResultsViewerTimeHistoryElement aelement = projectContext.TimeHistoryElementManager.GetElement( projectContext.TransientResults.TimeHistoryManagerTimeHistory, (int)m_projectContext.TransientResults.CurrentTimeHistoryType); At this point you can create the GraphFormModel that will give you access to the actual results. TransientResultsGraphFormModel graphFormModel = new TransientResultsGraphFormModel(aprojectApplicationModel, projectContext, aelement); //This is in the Haestad.HAMMER.TransientResultsViewer.Application namespace From here you can get to the actual results. TrvManagerBase resultsManager = graphFormModel.TransientResultsGraphManager; IField field = resultsManager.Field(“Pressure”); //I’m pretty sure the field name is Pressure IDictionary results = field.GetValues(); This is actually an IDictionary which actually makes this a bit easier. The key is the TimeStepIndex. So you’d get the TimeStepsInSeconds from the ResultDataConnection of the HAMMERNumericalEngine and the key value is the index into that array. The value, in this case, is the pressure result for the time history item requested. Let us know if this helps,

Jesse Dringoli · Answer

Hi Jessica, 
 A quick suggestion would be to build the code, copy the contents of the output folder to your HAMMER installation folder, then run the exe from there. Consider making a backup copy of the installation folder first. 
 If this does not help, we may need to see your source code.

Jesse Dringoli · Answer

Jessica, 
 Here are some recommendations based on a review of the source code: 
 1.	Consider simplifying the approach. Don’t try to create an application (i.e. custom ApplicationModel, ParentFormModel, ParentForm, etc. classes) 
 2.	Create a utility class that creates the instances of the Toronto classes (i.e. TorontoApplicationModel and TorontoParentFormModel should be sufficient). 
 3.	Using the utility class you can open up the .WTG file. 
 4.	With the TorontoParentFormModel instance you can cast the CurrentProject to TorontoProject in order to setup the classes needed to get to the transient results (summarized in another email). 
 5.	There is a compute method on the TorontoParentFormModel that takes a scenario ID (or not). If no id is provided it assumes the active scenario should be computed. 
 6.	Using the Compute method in the TorontoParentFormModel will configure the licensing automatically. If there is a license available then the computation should work. There would be a user notification if there is no license available.