Latest Contributions by DavidPike

‎08-03-2025

Hi, you'll likely find a Mosaic Dataset the best way to store these rasters. An especially useful aspect (of many) is that you can define Footprints to crop the rasters at the display level rather than having to crop/resample the raster source images. The footprints are essentially bounding polygons where everything inside is displayed. Anything outside a footprint (for the raster it is associated with) is not displayed. You may have seen these footprints before as green (usually the default) rectangles. The last of the 2 links below detail how to either set a clip extent (for footprints) via pixel ranges or to calculate radiometrically. Yoiu can also manually edit the footprints just like features. Mosaic datasets—ArcGIS Pro | Documentation Create and use a mosaic dataset | Documentation Mosaic dataset footprints—ArcGIS Pro | Documentation Define Mosaic Dataset NoData (Data Management)—ArcGIS Pro | Documentation Radiometric footprint recalculation—ArcGIS Pro | Documentation

‎07-29-2025

Try adding it to AGOL by index eg. mydomain/arcgis/services/rest/MyLayers/11, which should add it as a pseudo feature layer and then retry.

‎07-25-2025

I'd probably do this at the feature layer level. Have a polygon feature layer with the County geometries and name. Then create a feature layer join view https://doc.arcgis.com/en/arcgis-online/manage-data/create-hosted-views.htm using the county name to match against. Your resulting view will have a join_count field to then symbolise by.

‎07-16-2025

I can't comment on the georeferencing-side as it has been quite some time since doing it. Step 20. from: How to georeference images in ArcGIS Pro | Map and Data Library Does seem to indicate that all your georefencing information is saved to the existing raster with a World File and is thus suitable for Mosaicking. But again, I have little recent expertise with this. For the final mosaicking aspect though, I'll just mention this tool which may be of benefit: Radiometric footprint recalculation—ArcGIS Pro | Documentation

‎07-16-2025

I would check the database in Oracle and look for that table name, also the SDE system tables mentioned here: Solved: Table Appearing in SDE, but deleted from SQL Serve... - Esri Community (GDB_ITEMS, SDE_TABLE_REGISTRY, SDE_COLUMN_REGISTRY) as you may have some ghost entries from incomplete deletions (e.g. a table previously deleted in Oracle SQL Developer rather than via ArcGIS - thus not clearing out the SDE/GDB system table entries). Note also that tables can't share the same name even if they are within different Feature Datasets, as there is not Feature Dataset distinction within the database tables.

‎07-16-2025

I would try Calculate Statistics (Data Management)—ArcGIS Pro | Documentation

‎07-16-2025

Hi all, I'm looking at taking this exam (long overdue). has anyone got any advice or alternate learning resources than the Esri standard learning plan? Or study and exam experience to share please? I also understand that there's no sample questions, unless that has changed from last year. It does feel like a bit of a jump into the unknown in terms of what to expect. Cheers

‎06-13-2025

Seems like the opposite of an enhancement. Cui Bono?

‎06-08-2025

Possibly may need to Calculate Statistics (Data Management)—ArcGIS Pro | Documentation How big is the area? 1 tile or multiple? if multiple, if you click/inspect some cell values, do they show as different values? Any more info and screenshots wouldn't hurt either.

‎06-05-2025

I'd definitely keep those rasters out of a Geodatabase. Save in a folder as .tif extension and retry would be my first go-to, and I know it may be obvious but double-check the building footprints are a feature class. Even if so, I think the tool auto-converts to a raster internally - so maybe something funky going on due to the polygon data. I'd try convert your footprints to a raster if 1st .tif step doesn't work (when converting be sure to set correct Cell Size and Snap Raster).

‎05-30-2025

What's the coordinate system of the original data, and what is the data source, where did it come from and how did you get it into ArcGIS Online? It's probably some transformation issue on publishing or invalid geometries or some sort of error with true curves being densified. Also the feature service link you shared isn't public so only you or your organisation members can see it currently.

‎05-30-2025

If it were me I'd put them into 1 feature, unless there's a rationale I'm unaware of. Might be best to export out as FGDB Feature Classes and to a Merge in ArcGIS Pro. If you don't have that then I think it's a multiple series of Merge Layers—ArcGIS Online | Documentation in AGOL and cleanup/delete after. Beware of schema/field matching. If they don't match I believe it will append a new field (a Union of the 2 schemas).

‎05-30-2025

May be obvious but I'll say it anyway - I'd ensure the output location is a Geodatabase instead of a Shapefile (10MB limit). I'm not really familiar with this tool, but it might be possible it's skipping some features where it can't find a closest match in space or time. Something wrong with the date attribute or NoData for the raster etc. (also be aware of resampling) Or possibly the feature itself. Check Geometry and Repair geometry tool might be worth a try also. Projections / Coordinate systems of the inputs. If it was me I'd identify a few features that are missing from your table and overlay them onto the raster at those times. It might help you rule out some possibilities.

‎05-29-2025

Is the data source registered on the server data store and/or can the publisher add a workspace to the data store? What's the source data here, FGDB or from an SDE? It could have a few layers of complexity here. A data owner will always be able to edit their own data Controlling access to hosted feature layer data—Portal for ArcGIS | Documentation for ArcGIS Enterprise when it comes to Hosted Feature Layers (I understand you've used the term 'referenced' so I'm imagining this is a published service with a source registered to the ArcGIS Enterprise Data Store - so not uploaded as an HFL), but for other sources it may not be so simple (e.g. SDE connection file properties of the registered workspace). Really I think there's more information needed to give a complete answer on what's potentially occurring.

‎05-29-2025

What about via the DBMS?

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My Ideas

Latest Contributions by DavidPike

Re: Crop Raster Tool After Georeferencing

Re: Map Image Labeling

Re: Arcade: How to Symbolize a Feature Layer by Submission Frequency Using Arcade in ArcGIS Online?

Re: Georeferencing Workflow Clarification

Re: Error : Name is already used by an existing object while registering data with geodatabase

Re: Trouble Merging Different Raster Tiles

Enterprise System Design Professional

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Re: Zonal Statistics

Re: Arcgis is create a fake date in my layer

Re: Adding features to a layer

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Re: Owner remains able to edit non-editable referenced feature layer.

Re: Add permissions but no DELETE

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Re: Define Projection crack-down

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