12,491 reputation
1061142
bio website maphew.com
location Yukon Territory, Canada
age
visits member for 4 years, 3 months
seen yesterday

hewer of maps, old time techie, newbie developer

woohoo, http://gis.stackexchange.com/ now open to the public!

personal - www.maphew.com
in-between - yukongis.ca
work - www.environmentyukon.ca

profile for matt wilkie on Stack Exchange, a network of free, community-driven Q&A sites


May
2
comment How do I create an index layer for multiple maps?
As far as I know, DDP does not yet support a non-rectangular map index. That said, you can generate an grid/fishnet for only those areas that intersect a target feature with Grid Index Features
Apr
10
comment Raster mosaic not displaying raster values ArcGIS 10
additionally "#2" isn't reliable, as the answer positions move depending on number of votes and accepted status. You can indicate a specific answer by using the [share] link at the bottom of each answer. Thanks for contributing to the list of what works!
Apr
9
comment Harmonizing feature class definitions from many geodatabases
I reworded the title to something that, to me, captured the problem more clearly. Please feel free to revert or reword if you don't agree it's better.
Apr
9
comment Are there any distinct advantages of creating a Python Toolbox over a Custom Toolbox?
Included in the list of .tbx only is the ability to use Model Builder.
Apr
8
comment Extract Raster from Raster using Polygon shapefile in R
To fit the Q&A format of the site this should be placed into the main body of the question as an edit/update (and then add a comment to the answer this is in "reply" to so they know there's more to look at).
Apr
3
comment Exporting an ArcGIS model to a script, with a script?
@RyanDalton, I don't make edits to the exported python (in this scenario). I just export, replace the existing file, and commit with appropriate comment. The revision control system is just used for recording history, diffing, and revert if necessary (no branching or merging).
Apr
3
comment How to acquire schema lock is one already exists?
Sometimes Arcmap has a hung process, perhaps after a failed geoprocessing tool, even if there are no visible windows. After you close all Arcgis applications, run Windows Task Manager and open the Processes tab. Force close any ArcMap.exe or ArcCatalog.exe processes. (ArcGISConnection.exe and ArcGISCacheMgr.exe are ok to leave running).
Apr
1
comment Exporting an ArcGIS model to a script, with a script?
For many of my co-workers it's more like leading a horse to water ;-) They're not GIS people, they're people who use GIS to get their real job done. They'll use and change models but won't touch a command prompt or plain text file. It's just too alien to their experience and skillset. In any case, I'll likely go the AHK route. Thanks.
Apr
1
comment Exporting an ArcGIS model to a script, with a script?
yes the .tbx is being committed as well as the exported .py. I have experimented with using python toolboxes instead, which are entirely textual and thus friendly to version control. However this breaks collaboration with people who aren't comfortable with python (90% of my org), which means from that point forward I'm on the hook for making even minor changes to the model. It also takes longer to get to the same point, for example one can drag and drop the Results panel after an interactive session to a model. With a .pyt it's pretty much a design and build from scratch.
Mar
19
comment ArcGIS Raster Mosaic Dataset and GDAL VRT, when to use?
wow. 12 days and not a single response, though a couple of up-votes and a favourite. Too general a question, or perhaps there's no one about with enough experience in both to comment?
Mar
19
comment Does it matter what webserver (Apache, IIS, …) is used with Geoserver?
in that case it would be better phrased along the lines of "Does it matter what webserver (Apache, IIS, ...) is used with Geoserver?" followed by a rough description of what the business goals are (best interactive maps of ski hills in Yagamarphoo), what environment is like (all windows/linux/mac machines, primarily using ___ GIS software) and what kind of background or skillsets you and your colleagues are bringing to bear.
Mar
19
comment MapInfo very slow to start-up
Hi, welcome to GIS.se :) Normally this kind of answer would get a post notice added, "too short, not enough context, might get removed", but in this case it seems to be okay. Just thought I'd let you know for future contributions. :)
Mar
14
comment Preparations for a transition to ArcSDE
It's very unlikely your city is about to purchase ArcSDE, it hasn't been sold since 9.2, and is now part of ArcGIS Server.
Mar
14
comment changing central meridian in QGIS causes problems
This does look like a duplicate, but leaving open for another day so Jakob can confirm
Mar
13
comment Set a RANGE of values as nodata in a .vrt?
...but has some limitations in ArcMap (10.2.1). The vrt will display and symbolize okay, but conversion and exports will scale all values, not just the lower range; e.g. input pixels of 252 and 1894 will turn into -2 and 5015. So do conversions with gdal_translate instead.
Mar
13
comment GDAL equivalent of ArcGIS Mosaic
@Aaron in this context Mosaic and MosaicToNewRaster are the same thing, and yes I'm looking for control of how overlap is handled.
Mar
13
comment GDAL equivalent of ArcGIS Mosaic
There was no intent to compare the full system against a library, just a single tool from that system (Mosaic) against a single process/workflow which I think is in the library but just can't find. Thanks for bringing in Envi & Imagine. I have no meaningful exposure to them, so it's good to expand the horizon.
Mar
12
comment Make the nodata area of a resampled orthophoto overview white?
general windows cmd note: use caret ^ for a line break that will be joined when executed (e.g. add ^ to the end of each code line example above to keep both legibility and run-ability). Important caveat: never end a file or command line with a caret unless you want to invoke consume all memory
Mar
12
comment GDAL and Python: How to “pad the extent” or otherwise handle band.ReadRaster() for area falling slightly outside the image bounds?
you might be able to do something with gdalbuildvrt -te, set target extent, and -hidenodata, "...Useful when you want to control the background color of the dataset. By using along with the -addalpha option, you can prepare a dataset which doesn't report nodata value but is transparent in areas with no data."
Mar
12
comment Set a RANGE of values as nodata in a .vrt?
Thank you so much, that works swimmingly.