How can I create a new xns11?

[lj512lj512]

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I want to use xns11 to create a new xns11
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juli@env.dtu.dk

[halvgaard]

@mmfontana Any suggestions?

[mmfontana]

Hello @Rhadhi,

I have never created a .xns11 file using Python or C#, but it would be useful. I usually get .xns11 files from someone or I create it using MIKE Zero.

I was trying to better understand DHI.Mike1D.CrossSectionModule.CrossSectionData and DHI.Mike1D.CrossSectionModule.CrossSectionFactory. But I still need more time.

I did not find anything about create the file from scratch at "DHI.Mike1D.Examples/CrossSectionExamples.cs"

I will keep trying during the week.

[halvgaard]

@JesperGr any tips?

[JesperGr]

We do have a lot of internal test code in C# which creates various cross sections and utilizes the CrossSectionFactory. If you are a bit more specific on what type of cross section is required, I may be able to find some code. One example copied in below here, which creates an open cross section, which is the default for river type modelling. Some documentation is available here:

https://manuals.mikepoweredbydhi.help/2021/General/Class_Library/DHI_MIKE1D/html/T_DHI_Mike1D_CrossSectionModule_CrossSectionFactory.htm

    private static ICrossSection CreateCrossSection()
    {
      CrossSectionPointList crsPoints = new CrossSectionPointList();
      crsPoints.Add(new CrossSectionPoint(0,2) { DistributedResistance = 80 });
      crsPoints.Add(new CrossSectionPoint(1,0) { DistributedResistance = 80 });
      crsPoints.Add(new CrossSectionPoint(2,1) { DistributedResistance = 80 });
      crsPoints.Add(new CrossSectionPoint(2.5,2) { DistributedResistance = 80 });

      ZLocation location = new ZLocation("dummy", 0);
      location.Z = 0;

      CrossSectionFactory factory = new CrossSectionFactory();

      factory.BuildOpen("info");

      factory.SetLocation(location);
      factory.SetResistanceDistribution(ResistanceDistribution.Uniform);

      FlowResistance flowResistance = new FlowResistance();
      flowResistance.Formulation = ResistanceFormulation.Manning_M;
      flowResistance.ResistanceDistribution = ResistanceDistribution.Constant;
      flowResistance.ResistanceValue = 80;
      factory.SetFlowResistance(flowResistance);

      factory.SetRadiusType(RadiusType.HydraulicRadiusTotalArea);

      factory.SetRawPoints(crsPoints);

      factory.SetDefaultMarkers();

      return factory.GetCrossSection();
    }

[ecomodeller]

This will not be supported by MIKEIO in the foreseeable future.