topic Re: Call ArcHydro tools using ArcGIS Pro SDK in ArcGIS Pro SDK Questions

Call ArcHydro tools using ArcGIS Pro SDK

AquanuityDevelopment — Tue, 20 Jun 2023 22:16:34 GMT

I just could not get ArcHydro tool to work using ArcGIS Pro SDK. The following is a block of my code. Any hep will be greatly appreciated.

string sIputRaster = @"C:\Support\ESRI_LocalGovernment.gdb\FiveMeterSurface";
string sRaterPath = @"C:\Support\Fill.tif";

var parameters = Geoprocessing.MakeValueArray(sIputRaster, sRaterPath);

var cts = new CancellationTokenSource();
var results = await Geoprocessing.ExecuteToolAsync("Fill", parameters, null, cts.Token,
(eventName, o) =>
{
}, GPExecuteToolFlags.None);
if (results.IsFailed)
{
MessageBox.Show("Failed to create fill layer. Error " + results.ErrorCode);

return;
}

Re: Call ArcHydro tools using ArcGIS Pro SDK

GKmieliauskas — Wed, 21 Jun 2023 12:22:04 GMT

Hi,

Spatial Analyst has its own way of setting parameters for tools which have return value. They order differs in Python and .NET. Because Fill tool has 2 input parameters and 1 output, so output parameter could be in third place. You need to check it. Set for example 1 for z_limit.

https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/fill.htm

Another one thing I am not sure about geoprocessing tool name. It could be named like "Fill_sa" as other spatial analyst tools which I have used. For example "Reclassify_sa", "RasterCalculator_sa". There is no description about that.

Add validation checking to your geoprocessing call like in code below:

string sIputRaster = @"C:\Support\ESRI_LocalGovernment.gdb\FiveMeterSurface"; string sRaterPath = @"C:\Support\Fill.tif"; var parameters = Geoprocessing.MakeValueArray(sIputRaster, 1, sRaterPath); var cts = new CancellationTokenSource(); var results = await Geoprocessing.ExecuteToolAsync("Fill_sa", parameters, null, cts.Token, (eventName, o) => { System.Diagnostics.Debug.WriteLine($@"GP event: {eventName}"); if (eventName == "OnMessage") { IGPMessage gpMsg = o as IGPMessage; if (gpMsg != null) { Logger.Info(gpMsg.Text); } else { Logger.Info($@"{o.ToString()}"); } } if (eventName == "OnValidate") { List<IGPMessage> gpMsgs = (o as IGPMessage[]).ToList(); if (gpMsgs != null) { foreach (var gpMsg in gpMsgs) { if (gpMsg.ErrorCode == 0) { continue; } // Fill with your logging } } else { // Fill with your logging } } if (eventName == "OnProgressMessage") { // Fill with your logging } }, GPExecuteToolFlags.None); if (results.IsFailed) { MessageBox.Show("Failed to create fill layer. Error " + results.ErrorCode); return; }

Re: Call ArcHydro tools using ArcGIS Pro SDK

AquanuityDevelopment — Wed, 21 Jun 2023 15:31:58 GMT

Thanks a lot for your help. I am able to get it work now. The key is the GP tool name. It should be "Fill_sa" as you indicated. But it only takes 2 parameters in Pro SDK though. It would be better if users can specify z_limit.

Re: Call ArcHydro tools using ArcGIS Pro SDK

GKmieliauskas — Wed, 21 Jun 2023 18:29:56 GMT

Try to specify z_limit as third parameter. Sometimes spatial analyst tools inserts output parameter in second or in third position. So if you have found that output parameter is second then z_limit parameter could be third