Impossible d'entrer la classe d'entités de cours d'eau dans le reconditionnement DEM

Question

<\/HEAD>ArcGIS Pro 2.0.1<\/P> <\/P> Nous avons récemment mis à niveau vers ArGIS Pro 2.0 et j'essaie d'utiliser ArcHydro pour mettre à jour notre couche de cours d'eau basée sur de nouvelles données DEM. Je dispose de la classe d'entités de cours d'eau NHD que je dois intégrer dans le DEM en utilisant le reconditionnement DEM, mais l'outil ne me permet d'entrer qu'un raster comme couche de cours d'eau. J'ai utilisé ArcHydro avec ArcMap par le passé et je n'avais aucun problème à utiliser une classe d'entités de cours d'eau comme couche de cours d'eau pour le reconditionnement DEM, cela a-t-il changé avec Pro ?<\/P> <\/P> Merci<\/P><\/BODY><\/HTML>

mehmet_cengizARSLANOĞLU · Answer

Hi, Christine, is there any tutorial for updated Archydro tool, please?

DanielWade1 · Answer

Thank you for the reply Christine, I am attempting to run the Create Drainage Line Structures tool but I am getting Error 000358: Invalid expression even though I am not generating a custom expression. Here is the Python code for my parameters within the tool.

arcpy.archydropro.CreateDrainageLineStructures("DEM_NW_Grid", "NHD_Clip", r"G:\Projects\County Hydro\GIS_Data\County_Hydro_Test\County_Hydro_Test.gdb\FdrStr", r"G:\Projects\County Hydro\GIS_Data\County_Hydro_Test\County_Hydro_Test.gdb\StrLnk", r"G:\Projects\County Hydro\GIS_Data\County_Hydro_Test\County_Hydro_Test.gdb\DrainageLine", r"G:\Projects\County Hydro\GIS_Data\County_Hydro_Test\County_Hydro_Test.gdb\DrainageLine_FS", r"G:\Projects\County Hydro\GIS_Data\County_Hydro_Test\County_Hydro_Test.gdb\EditPoint", "CLEAR_ANGLES_YES", "USE_RASTER_EXTENT_FALSE", None, 11.6)

ChristineDartiguenave · Answer

We have changed the workflow for generating thethe raster representation of known vector streams in Ac Hydro Tools both in ArcMap and ArcGIS Pro.

Internally, the tool still handles both raster and vector input streams. However the UI for the tool in the tbx toolbox only allows to set one parameter type (we picked rasterlayer). For more context, a Python toolbox would allow you to set up multiple types so you can select either a vector or a raster layer, but then it has other limitations...

Basically if you want to use an input vector, you can just modify the parameter type in the tool ui to feature layer and it will then work (Run ArcMap as admin and you can modify the toolbox).

However, the recommended approach is to use first the tool Create Drainage Line Structures to generate the raster stream (Output Streak Link Raster - strlnk by default). Then use that raster as input to DEM Reconditioning or Build Walls.

I am currently working on modifying the interface so that it says raster only for those. For now the back door is still available to use vector stream but it is not the recommended approach.

Christine Dartiguenave

Esri Water Resources Team