Latest Contributions by DuncanHornby

Understanding the issue I think there are several solutions buts worth understanding why things are what they are. When you create a Feature Class you typically need to set a coordinate system as that's how the GIS knows where your data is. Don't set a coordinate system then your data could just a easily be on the moon. That's a "sphere" just like Earth... If you read the help file for the tool I link to above the coordinate system parameter tells you that you can set xy domain via the environment settings of the tool. But all that glitters is not gold... Go to the help page for xy domain environment and it states "...geodatabases automatically calculate a valid x,y domain based on the coordinate system". SO.. tools force a xy domain based upon the coordinate system of the data. That makes sense, as you create your features they need to exist somewhere and that is your coordinate system. Possible solution #1 But! You can create a Feature Class without a coordinate system (you simply don't provide one for that parameter) and ONLY THEN can you set the xy domain. So now you have a dataset that has an unknown coordinate system but an xy domain extent you set. But you can't edit into it! Note if you have a dataset with no coordinate system then ArcPro refuses to allow you to edit it. All a bit chicken 'n' egg. But there is a sort of a legacy tool from the past which is define projection , this allows you to set the coordinate system of a dataset which was unknown. Finally you have a featureclass that has a coordinate system, a user define xy domain extent and is editable. But... I can't say with certain, go run one of the many other tools on your data and they simply reset the extent to the domain of the coordinate system. So a complete waste of time... Possible (untested) solution #2 Modern versions of ArcPro have massively expanded the capability of a geodatabase through attribute rules. Arcade code that gets executed when you insert/edit a feature. It would take very little code to query the geometry and ask does it fall within the extent of a predefined area, if not reject the edit.  Rules are associated with layers in your project. I would suggest solution #2. ... View more

This is a tool that will have far reaching impacts for many organisations. Where I work we have many legacy projects that were built using personal geodatabases. I support staff who have a long history of using ArcMap and personal geodatabases. With Universities forced by esri to drop support for ArcMap there are many projects with datasets that are sitting in project folders in these older formats. In true academic style these projects often have a habit of bubbling back to the surface years later, so having a way to transfer them into file geodatabases is critical. Now esri might have said in the past you need to migrate, the rest of the WORLD would responded saying who has time for that! Especially projects that have come to the end of their funding.  I feel this new tool is that "get out of jail" card! Use it when we need to. I can already think of several projects I could save from obsolescence! Nice. ... View more

Robert, Unfortunately that idea of clicking onto a different view/pane and even closing down the chart properties pane does not work, the purple border still persists.  I have discovered that if I export to a PNG it does lose the purple border, so it is possible to get an image of the chart without the purple border. I'm going to suggest an idea that the copy to clipboard does not retain the annoying purple selection border! ... View more

Agree but I don't seem to be able to unselect a histogram? Seems like an obvious thing to do but not possible. Unless there is some secret set of key strokes...? ... View more

@HongXu  thank you for the answer that is the solution to get to the raw pixels values!  I must say "A No-Op Function" statement is not very helpful whilst the Analytical and Cartographic renderers provide informative advice. Please could you feed that back to the ArcPro development team. A simple explanation of what that means would be very useful in that Processing Template dropdown. If I search esri help for "A No-Op Function" it returns nothing, so I have know way of finding out what it is...     ... View more

Hi Jeff, Thanks for pointing me to the sentinel 2 imagery layer. This is indeed giving me that much needed acquisition date. It's a shame that the wayback data does not seem to keep that, as the quality of those images are very good. May be moving forward, future versions of the wayback metadata could provide such information? I can only but hope! Duncan ... View more

Hi Jeff, Thanks for finding time to help me understand the data. So using my example in the original question, am I correct in saying that the way back images were archived in 2019 and that knowing from the glacier dataset I have it was showing a 2003 image when it was archived. But since then the tile layer has been rebuilt and has overwritten (?) the original source image date with 2024 date? Would that mean as a user I can never truly know what the source image date is as the metadata is reporting the built date of the tile layer?  Or have I got the wrong end of the stick? ... View more

For the metadata the url was  - https://metadata.maptiles.arcgis.com/arcgis/services For the imagery the url was - https://wayback.maptiles.arcgis.com/arcgis/rest/services/World_Imagery/MapServer     ... View more

Just thinking out aloud, when you extended the line have you mistakenly created a multi-part feature? Just go into edit mode and use the vertices tool and in the panel you'll see it list the vertices and if it has grouped them into parts that may be the source of your issue? ... View more

I like the idea of it duplicating the last clause but would find it highly irritating if it did it automatically! I would say the opposite to you I don't always add a near identical line to the next clause statement. I think the interface needs to be tweaked and some sort of button on the far right (next to the red cross) that duplicates the last clause would be my preferred solution. ... View more

Hi Jon, Thanks for the pointer to the website, I explored this and the info box that pops up provides even less detail than the metadata layer when loaded in ArcPro. So it does not resolve my query. Useful website for quickly checking imagery. Duncan ... View more