Latest Contributions by NathanHeick

‎12-04-2013

I am trying to run a geoprocessing script tool in a multiprocessing.Pool. Initially, I had problems with pickling my tool, which was imported from a custom toolbox. Then, I defined a top-level function that executed the call. My tool runs and I am even seeing a message from the tool, but then I get the following error: Process PoolWorker-1: Traceback (most recent call last): File "<string>", line 1, in <module> File "C:\Python27\ArcGIS10.1\lib\multiprocessing\forking.py", line 379, in main exitcode = self._bootstrap() File "C:\Python27\ArcGIS10.1\lib\multiprocessing\process.py", line 275, in _bootstrap sys.stderr.flush() AttributeError: 'geoprocessing sys.stdout object' object has no attribute 'flush' After that, the program hangs. Looking at the multiprocessing package, it looks a SystemExit error is raised while or after the tool is run. Any ideas?

‎07-16-2013

Another thing I found was that I could register the data store with the primary site administrator account, but not with an Active Directory account registered as an administrator in ArcGIS for Server. I know the account is an administrative account because I could login into Manager with it, but not register the data store from inside Manager. I had no problem registering the data store from ArcCatalog.

‎07-16-2013

I am setting up ArcGIS Server 10.1 SP1 for the first time and am trying to register our ArcSDE database with ArcGIS Server, but I am getting the error "Unable to Submit Job to the Publishing Service." We are using web-tier authentication and I am connecting to ArcGIS Server Manager through port 6080. Any ideas?

‎05-10-2013

To explain a little more the image sizes aren't in even ft. The number of pixels are such that the height and width of the image in feet ends in .66 ft or .33 ft.

‎05-10-2013

The gaps are between tiles, not within tiles. I see what you are saying if the gap is within the tile. I think the problem is related to the cell size. The images are supposed to be 4" resolution and the cell size says 0.33 ft. The extents also seem to have precision down to 0.01 ft. The leftmost column of images start at an even coordinate. I think at some point the 1/300 (0.00333...) ft that is missing caused a pixel not to show up. The coordinates in the extents will run like 0.66, 0.32, 0.98, 0.64, 0.30, 0.96, ... . I am just wondering if there is a way to make the mosaic dataset sample from the pixels that are around the missing row and display the data in the final mosaic.

‎05-10-2013

I am trying to build a mosaic dataset from tiled source rasters (.tiffs). The problem is that there are two places with a 1 pixel gap across the entire set of rasters running horizontally. It looks to be related to precision issues when they were generated. Is there a way to sample the nearby pixels from the adjacent rasters and use the resampled value to fill in the gap? Thanks, Nathan

‎05-10-2013

Not yet. I need to follow up with someone on the database team I talked to at the Dev Summit. No update from Tech Support.

‎04-30-2013

We have .tif orthophotos that we want to use to build a source mosaic dataset that uses LZ77 compression. We want this to be available for analysis. Is it recommended to use JPEG compression on the pyramids or LZ77? Will there be a noticeable difference in quality between the pyramids and source rasters? Will this affect analysis at all?

‎04-30-2013

What about the case where the source rasters are 12,000 by 18,000 and tiled by the vendor? We might want to do some image processing using a referenced mosaic dataset, but we want the source mosaic dataset to remain untouched. When do pyramids outperform overviews?

‎04-29-2013

I am trying to understand the performance differences between building overviews and building pyramids. I have 600 MB tiled orthophotos and I want to know if I should skip building the pyramids and use overviews entirely. Otherwise, I am guessing I would need a few levels worth of overviews on top of the pyramids. If I choose to apply some color-balancing and other image processing, would this make overviews even more beneficial. The mosaic datasets only need to be setup one time. The source data won't change. Thanks, Nathan

‎03-08-2013

Check out the website below: http://wiki.gis.com/wiki/index.php/System_Design_Strategies Also, the book Building a GIS by Dave Peters would be helpful. This will give you a starting point for your own analysis using the System Design Tool. I think an expert would need more detailed requirements. How many users are you supporting? What are there workflows? Are you only editing or will you be using ArcGIS Server? The loads are very important.

‎03-08-2013

Thanks for that explanation. Do you think the article I saw was probably referring to manually building unique indexes on just the base tables? I couldn't build any unique indexes after versioning with the GP tools.

‎03-07-2013

I am using ArcGIS 10.1 SP1 and I have been trying to devise an indexing strategy for our new geodatabase. When implementing it, I am having problems making unique indexes and registering as versioned. Whichever order I use doesn't make a difference, the second tool won't allow unique indexes and registering as versioned. I saw an older 9.3 article on this and it said you could do both if you register as versioned first, then create your unique indexes. That hasn't worked for me. Also, the ArcGIS 10 help said it doesn't recommend using unique indexes because of the potential for compress problems. Is it a good idea to skip unique indexes and use Data Reviewer to check uniqueness later? I thought it would make sense to enforce uniqueness where it should apply. Thanks, Nathan

‎02-20-2013

Without having worked through the problem myself, I would say you will probably want to use a search cursor on whatever table has the date field or string field with the date in it. That should give you access to the field values for a particular record in a table or feature class. The new data access module might have something even more interesting, but I haven't gotten to even browsing it yet. You could also do the date conversion in Python itself and just read the date directly from the date field. I don't know what kind of result a search cursor gives for a date field in terms of Python types, but there are date, time, and datetime modules for working with dates and times. That could help you avoid adding any unnecessary fields. Lastly, I would say use arcpy.management.Rename() to rename generic.shp to 02202013_generic.shp.

‎02-20-2013

I designed several models that use a Calculate Value tool at the beginning of the model. I just noticed that when the models run, they are not using the dynamic result of the Calculate Value tool. They are instead using the result from the last time I manually ran it from within Model Builder. Since I use the same inputs 95% of the time, I never noticed it until now. Why doesn't it use the dynamic result? If I run the model from ArcCatalog, the messages clearly indicate it runs first and produces the correct result, but the input for the next tool is the stored result. Has anyone else noticed this? I am using ArcGIS 10.1 SP1.

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My Ideas

Latest Contributions by NathanHeick

Python Multiprocessing geoprocessing sys.stdout flush error

Re: Unable to Register Data Store through ArcGIS Server Manager

Unable to Register Data Store through ArcGIS Server Manager

Re: Pixel Gap in Source Rasters

Re: Pixel Gap in Source Rasters

Pixel Gap in Source Rasters

Re: File Geodatabases Made Read-Only in 10.1 with Microsoft Forefront/System Center 2

Pyramid Compression

Re: Pyramids versus Overviews

Pyramids versus Overviews

Re: Minimum hardware and operation system requirement for ArcGIS 10.1 Desktop

Re: Unique Indexes in ArcSDE for Oracle 11g and Registering as Versioned

Unique Indexes in ArcSDE for Oracle 11g and Registering as Versioned

Re: Renaming a shapefile using values from a text field

Calculate Value Tool Not Dynamic in Model

Re: ArcGIS 10.2 Publishing Tools Error

Re: Storymaps shortlist photo in header

Re: Customize Story Map Shortlist to add photo in ...

Re: Problems with da SearchCursor results from LIK...

OCR Support for App Studio Framework