Latest Contributions by DuncanHornby

My gut feeling is you need to create your route events using your linear referencing then export those into a polyline FeatureClass and do your spatial querying. Then as some final processing step copy your fields of interest back into the original standalone event tables. ... View more

See when you provide an image and a better detailed description, I can make an informed response! The issue is a common issue, you basically didn't read the help file 😉 You are not the first and won't be the last. So what is the output of the iterator? A Workspace.  What is the input of the Train deep learning tool? A Folder. Is a Workspace a Folder...Yes and No! A folder is a type of workspace but in the world of model builder these are different objects and that's why you can't directly connect to the tool. In this scenario you need to convert the iterator output to a folder object, you can easily do this using the Calculate Value tool which I show below. The Calculate Value tool is:     ... View more

Why is Iterate Workspace not working, you can set it to iterate over folders? Also saying something "is not working" is not very helpful. You need to explain what you have done, what the errors are, expected outputs and often include images if you want people to help you. Anything less is just a shot in the dark. ... View more

If we had the option to blank the map when pausing the map, like the way ArcMap did, I would definitely be choosing that option as I too find the word paused ineffective.   ... View more

Just want to say I too hit this issue with a survey 123 table, it displays the alias in an attribute table when I need to see the field name. I would like an option in the attribute table menu to flip between alias/name. ... View more

If you have access to ArcPro then have a look at RivEX, it has many tools for processing sites along rivers. You can very easily create 3km u/s and d/s reach polylines by using one of the reach generation tools. The RivEX manual has a section of worked examples to inspire users with the wide range of river related processing that can be done. ... View more

@JMutunga  I had searched high and low the help file for any advice on the merge policy. I have to say 1 line tucked away on the tool is a bit obscure! And its not even emphasised by say the grey box that the documentation uses. I had crashed around the help file on the pages that document domains and these polices. That's where I had been searching for any advice. I would recommend you get your help documentation team to replicate that 1 line (I'm sure they can find the time to do that) and state within the domains policy section here that it does not actually apply to the Merge edit tool. With that said it has been good to get some clarification and I had not been doing something wrong with setting up a merge policy on a domain. This useful discussion leads me to one final question, when does the merge policy get execute, does it only run when using the merge or dissolve geoprocessing tools for example? ... View more

The tool RivEX can help with this problem as long as your river network is vector and not a raster network. If you define the main river as starting at the mouth of the network then RivEX has the Add Main Channel. If you are starting at some random point within a catchment is the main channel the route to source? If so you could use the Find source of site tool. If your definition of main river from some random starting point is the route to source and route to network mouth then you could use the Create site centred reach and set the distances to a very large value to ensure searching reaches the source and mouth, an example is shown below.   ... View more

I believe the issue is that having selected the watershed and used that selection to select the points within it you do your first attribute selection, that immediate "destroys" the selection based upon the watershed polygon. You have two options, start using an iterator and get your head around embedded sub-models, or the more clunky but easier to understand is for each attribute selection have a separate select by location before it. At the moment you have three select by attributes feeding from one select by location, you want to duplicate the location tool each with the select HUC tool feeding to them. With that logic after a select by attribute has run the selection on the wells is reset by the location tool. ... View more

Have you tried typing into Google "image detection of beach line vegetation"? Didn't take much to get here. ... View more

I think this functionality is broken in ArcPro, I made the same question in September last year here and no one from ESRI has stepped up to say why. May be I have done something stupid, but your workflow is identical so makes me think it's broken?  Would be good to get some clarification from ESRI! ... View more

Sorry are you saying you are trying to insert a vertex into a polygon that is composed of 8 million vertices? I would imagine any sort of spatial processing would be quite slow and you would need to dice up your data? ... View more