Latest Contributions by DavidPike

‎08-09-2020

‎08-07-2020

can you show the full code and expressions used?

‎08-07-2020

try right-click->data->export then choose extent of display (zoom out to cover all features), reclassify nodata to 0 then try it with tht output raster.

‎08-06-2020

Seems very much like a processing extent issue. Are you using the processing extent I suggested?

‎08-05-2020

Of course! This will be optimal, thanks.

‎08-04-2020

If I'm using an arcpy.da.UpdateCursor to search for an ObjectID and delete the entry/row, is it possible to walk the cursor backwards for sake of speed? Knowing that my feature has recently been created and would be near the last index, would the cursor be faster with a for loop going backwards (if such a thing) and a break statement after the deletion? Or is the cursor set up more like a set, and unordered by OID? Cheers

‎08-04-2020

A common practice is to set-up a template MXD (File->SaveAs) and use this to load layers in. If on a network share with multiple users, I would put this template into a read-only folder so no one deletes or saves over and bloats the MXD. You can also add this MXD to your default templates folder. arcgis desktop - Change default "My template" directory for Arcmap layout view? - Geographic Information Systems Stack E…

‎08-04-2020

I'll just throw in an idea but I don't know how to implement it exactly. I would guess it's possible to add a View captured from the RDBMS (SQL) table based upon geometry extent or if the feature geometry intersects a certain envelope? Then you could publish that view?

‎08-03-2020

Hi all, ArcMap 10.5.1, Server 10.6.1. No image server extension. I have a cache of imagery with cache levels going from a scale of roughly 1:300 and cell size increasing by 2^n. The cache is post 10.3 and in bundlex format. Some very noob questions, but have always bothered me: 1. If an image is published and cached on the server at all appropriate levels, my understanding is the base image would never be drawn - i.e. cached tiles would always be pulled instead? 2. cached levels at 2^n are most appropriate from a mathematical perspective, the only reason these may differ is that the cache is intended to be used in a viewer with set scales, whereby the exact resolution eg 1:50,000 can be fetched. Is this a correct assumption? 3. How can I publish just from my cache without the original tile? (I have the tiling scheme) Can I just publish any raster (with correct spatial reference) and hide it behind the cache? Would that raster need to have at-least the same extent of the cache? Is there a better way of doing it? Thanks very much.

‎08-01-2020

Without seeing your data I can only guess at some of the issues. As they probably don't match up spatially, I would look to use the Near Analysis tool Near (Analysis)—ArcGIS Pro | Documentation to create a new feature with the original features appended with the ObjectID of the closest Near feature. Use this is the foreign key to Join Essentials of joining tables—Help | ArcGIS Desktop to the label feature. This is not foolproof but probably the best you can hope for.

‎08-01-2020

Using background geoprocessing? Turn it off and it might give you more of an idea, also use all the cores in the environment settings?

‎08-01-2020

It's likely not being created and running your except block. You can't see the error message because you're using a print statement in a script tool. arcpy.AddMessage(arcpy.GetMessages()) I would listen to what Dan is saying and get rid of your try/except block until things start working. You shouldn't throw everything into a script tool straight away until you know the script works, it just makes debugging that much more difficult.

‎07-31-2020

OK. You've probably got a raster with 0.1 values for the shapefile area but surrounded by NoData values for the rest of the extent. When you add the 2 rasters together, the NoData wipes out the other raster values. Ensure NoData values are set to zero in your smaller-area raster using the Recalssify tool, then add them together in raster calculator ensuing that the processing extent is set to union of inputs or another appropriate extent.

‎07-31-2020

are you trying to add 0.1 to just one side? is your cell size 0.1m? why a cell value of 0.1 for the raster? What is his raster?, and why do you need to do this? Check the environments are set to Union of Inputs when you do the Raster Calculator.

‎07-31-2020

I've never done it directly (not that this is any marker!). I'd grab the domain of the cursor fields then use the dictionary provided by the .codedValues attribute for each domain in arcpy.da.ListDomains(). But that may well be what you are saying you're trying to avoid.

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