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ArcHydro Wetland Identification (WIM) - Train Test Split Tool geeft HRESULT E_FAIL foutmelding

MalloryGill

Ik gebruik de WIM-toolset voor het identificeren van wetlands al een paar maanden succesvol, maar gisteren probeerde ik de "Train Test Split" tool te openen en krijg ik nu de foutmelding "Error HRESULT E_FAIL has been returned from a call to a COM component." De fout verschijnt in plaats van de gebruikelijke tool parameteropties, dus veel van de aanbevolen probleemoplossersuggesties voor de "HRESULT" fouten zijn niet van toepassing omdat ik de geoprocessing extent of de locatie van data niet kan aanpassen, enzovoort, aangezien ik niet eens bij de parameters van de tool kan komen. De rest van de tools in de WIM-set openen allemaal wel de parameteropties en alles wat ik heb gecontroleerd in Archydro werkt ook zoals verwacht.<\/P>

Mijn vermoeden is dat het op de een of andere manier gerelateerd is aan de archydro tools zelf of het scikit-learn python pakket, aangezien het faalt zodra ik probeer het te openen en geen parameters toont. Als ik probeer om de Train Test Split tool te "bewerken" vanuit de catalogus, zegt het dat het script leeg is, maar als ik handmatig navigeer naar het traintestsplit.py bestand opent het script en ziet er uit zoals verwacht. <\/P>

Ik gebruik momenteel ArcGIS Pro 2.9.3, ArcHydro tools 2.9.59, dus de versies zouden op elkaar afgestemd moeten zijn. Ik heb de haalbare aanbevolen ArcHydro probleemoplossers geprobeerd zonder resultaat (herstarts, nieuwe mxd, tijdelijke map legen). Heeft iemand iets soortgelijks meegemaakt of ideeën? ( @GinaO_Neil<\/a> Ik hoop dat je wat magie achter de hand hebt! 🤞<\/span>)<\/P>Bedankt!<\/P>

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Arc Hydro

Accepted answers

GinaO_Neil

Hi @MalloryGill,

Thanks for reaching out. I believe this is a an error in the arc hydro tools themselves, as you suggested. We are working on resolving conflicts in tools that are developed in Pro 3 and then used in Pro 2.9. Unfortunately the Train Test Split tool falls in this category. We are prioritizing a fix to this issue and will have new version of WIM available in the next couple of weeks (this will include additional new WIM functionality!).

In the meantime I recommend trying the tools in Pro 3, or (more stable) downgrade to the arc hydro version just before 2.9.59.

All comments

GinaO_Neil

For anyone else following this thread - there are new versions of Arc Hydro for both 2.9 and 3 available for download. These updates appear to address the errors @KavianKoleini pointed out.

GinaO_Neil

Hi @KavianKoleini

I'm surprised Train Test Split is still failing as a standalone tool. Can you email me to set up a screenshare? goneil@esri.com

I will mention that going forward we are focusing most on maintaining WIM tools for Pro 3+. I do recommend upgrading to the newer version of Pro when you are able to.

For the ModelBuilder implementation of WIM - this has not been actively maintained as it is not the recommended WIM implementation. However, I can work with you to get a working version of the chained tools. This can either be modelbuilder or a WIM notebook

KavianKoleini

Hello,

Installing the updated ArcHydro 2.9.88 did not fix the problem with Train Test Split for me. In ArcPro 2.9.5 with ArcHydro 2.9.88, running Train Test Split results in ERROR 000576: Script associated with this tool does not exist. Another strange thing, after installing ArcHydro version 2.9.88, the Wetland Indicator Model itself is no longer available as a tool. The individual scripts the make up the Model are there and seem to work, except for Train Test Split. Searching help on ERROR 000576, ESRI recommends a right-click the failed script tool and click Properties. Doing so crashes ArcPro entirely. Any recommendations would be appreciated.

Anonymous User

Good to know. I will be able to upgrade in the coming months and will try the 3.0 tools then. Thank you!

GinaO_Neil

Hey there. Thanks for the heads up! I still need to submit changes for the Arc Hydro Pro 2.9 build to fix this issue. The tools should all be working, and with added capability, in the Arc Hydro Pro 3 version. Are you able to upgrade? I will be working to fix these Pro 2.9 issues this week.

Anonymous User

Hi Gina, I am using Pro 2.9.5 and just installed Arc Hydro 2.9.79. I am still receiving the same error with the Train Test Split tool. Just wanted to let you know. Thanks!

MalloryGill

Sure thing! Code is below, it's part of a larger python toolbox I'm building. We'll be iterating through different geographic areas and running the tools, so the class dictionary just allows for flexibility in how many classes there might be in a raster. If you had just a single location or a consistent set of classes you could hard code a single sampling percentage string and cut out everything above line 21

# build class dictionary for sampling percents
class_dict = {}
class_dict[9] = "0 25;1 50;2 50;3 50;4 50;5 50;6 50;7 50;8 50;9 50"
class_dict[8] = "0 25;1 50;2 50;3 50;4 50;5 50;6 50;7 50;8 50"
class_dict[7] = "0 25;1 50;2 50;3 50;4 50;5 50;6 50;7 50"
class_dict[6] = "0 25;1 50;2 50;3 50;4 50;5 50;6 50"
class_dict[5] = "0 25;1 50;2 50;3 50;4 50;5 50"
class_dict[4] = "0 25;1 50;2 50;3 50;4 50"
class_dict[3] = "0 25;1 50;2 50;3 50"
class_dict[2] = "0 25;1 50;2 50"
class_dict[1] = "0 25;1 50"

# determine how many classes are present in raster
ds = gdal.Open(wetland_path)
arcpy.AddMessage(ds)
band = ds.GetRasterBand(1)
arcpy.AddMessage(band)
max_val = band.GetMaximum()
arcpy.AddMessage(max_val)
if max_val in class_dict:
	sample_pct = class_dict[max_val]
	arcpy.AddMessage(f'{wetland_name} has {max_val} wetland classes - sampling perentages {sample_pct}')
	
	# train test split
	arcpy.AddMessage(f'Building train and test split for grid {pagenum}...')
	train_name = f'grid_{pagenum}_train.tif'
	test_name = f'grid_{pagenum}_test.tif'
	train_path = os.path.join(model_folder_path, train_name)
	test_path = os.path.join(model_folder_path, test_name)
	p_traintest = traintestsplit.TrainTestSplit()
	ret_traintest = p_traintest.executeAH(in_gt_ras=wetland_path,
										  out_train=train_path,
										  out_test=test_path,
										  in_class_sampling_percent=sample_pct)

else: 
	arcpy.AddError(f'Sampling percentages not found for {max_val} class raster. Exiting.')

Anonymous User

Hi @MalloryGill , would you mind sharing the code snippet that calls in the Train Test Split tool, if convenient? Thanks!

GinaO_Neil

That's good to know. That confirms the errors are associated with the tool UI's and not the code itself.

MalloryGill

Thanks so much Gina! I ended up finding a workaround - I'm working on a standalone python script that predicts wetlands (using the WIM tools) and calculates impacted wetland areas for project locations. And I was able to call the Train Test Split tool successfully from my standalone python script to generate the train and test rasters without getting the error message.

I'll definitely keep an eye out for the upgrade in the next few weeks, thanks again for your help!

GinaO_Neil

Hi @MalloryGill,

In the meantime I recommend trying the tools in Pro 3, or (more stable) downgrade to the arc hydro version just before 2.9.59.

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