Problem using CrossSectionExtensions mehtods from MIKE 1D API

[MonicaCoppo]

Hello,

I have been using the Mike1D API trough pythonnet, to create my code in python for my PhD project. Recently a method that I was using is obsolete (GetNaturalDepthOld). I am trying to use the new equivalent version in the CrossSectionExtensions, CalculateNaturalDepth, but I am having some problems.

I am defining a cross section interface IcsData=ICrossSection(crossSection), for which I want to calculate the natural depth and calling the method as follows for a given Q and slope value:

natural_depth=CrossSectionExtensions.CalculateNaturalDepth(IcsData,float(Q),float(slope))

I am getting and error on de argument definition_
TypeError: No method matches given arguments for CalculateNaturalDepth: (<class DHI.Mike1D.CrossSectionModule.ICrossSection'>, <class 'float'>, <class 'float'>)

Do you have any hint why this is happening or have some examples on using CrossSectionExtensions methods? :)

Thanks in advance,
Best regards,
Monica

[JesperGr]

The obsolete method is still working, though it does not take sediments into account, if present.

The most convenient method is available on the CrossSectionSlotDecorator, something like (C# code syntax here):

hdParams = new HDParameterData();
csd = new CrossSectionSlotDecorator(ics);
nd = csd.GetNaturalDepth(Q, slope, hdParams);

Details of GetNaturalDepth MIKE 1D Class Library: CrossSectionSlotDecorator.GetNaturalDepth Method. The hdParams are required for some Colebrook-White parameters, in case the cross section resistance is based on that.

It is also possible to use the extension method. Details of the CalculateNaturalDepth can be found here: MIKE 1D Class Library: CrossSectionExtensions.CalculateNaturalDepth Method. Then it is required to set the maxDepth to the height of the cross section. This method will most likely also be deprecated.