12,609 reputation
1168157
bio website maphew.com
location Yukon Territory, Canada
age
visits member for 4 years, 9 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


Apr
10
comment Force OGR to use specific driver for input format
@user30184, please add that as an answer. Ogr2ogr example was asked for as well as python and I'd like to give credit where due.
Apr
9
comment Force OGR to use specific driver for input format
Nominated for inclusion in the GDAL/OGR Cookbook: github.com/pcjericks/py-gdalogr-cookbook/pull/155. Thanks Luke!
Apr
9
comment Force OGR to use specific driver for input format
I opened an enhancement request to make this idea an ogr feature: trac.osgeo.org/gdal/ticket/5917
Apr
9
comment Force OGR to use specific driver for input format
this looks beautiful, but doesn't work for me. Script: gist.github.com/maphew/d9ca85f5080221475788, data: gist.github.com/maphew/3f1198ac2de718d1c1b6, command: python ogr-convert.py resid.txt CSV xtest3 "ESRI Shapefile", result: ERROR 10: Pointer 'hSrcDS' is NULL in 'OGR_Dr_CopyDataSource'. If data file is renamed to *.csv, then it works. So it looks GetDriverByName is overridden by something else. (This isn't the actual data I'm trying to convert, it's just one I know works, used for testing).
Apr
7
comment Applying version control to ArcGIS Models
Marco thanks for your viewpoint and perspective! It's off-topic here though, where the goal is to (attempt to) find usable version control for Model Builder. Let's move to chat: chat.stackexchange.com/rooms/939/gis
Apr
2
comment Arcgis Online - public viewers and private editors
A person moderately knowledgeable about how Arcgis Online services work, or even just willing to spend a lot of time pushing buttons and following links, can still go direct to the globally shared editable feature service (exposed in step 4) from their own map, which they have full control over. The procedure outlined here makes it inconvenient to get to an editable place but it doesn't forbid it. It provides a measure of protection, but it is not secure.
Apr
1
comment How to add a point to existing attribute record, rather than edit attributes of an existing point?
+1, but would be a more complete answer if it included a demonstration of the Arcmap integrated python command line window, especially including how to capture the X,Y from a newly digitized point. The Q is coming from an interactive workflow scenario.
Apr
1
comment How to add a point to existing attribute record, rather than edit attributes of an existing point?
Nice idea, but Edit > Merge doesn't work with points.
Apr
1
comment ArcCatalog complains that spatial references don't match between a feature dataset and a feature class that have the same coordinate system?
Thank you! This worked for me today in a situation where using the interactive tool to define the new feature dataset coordinate system by selecting an existing feature class did not work (v10.3).
Mar
27
comment ogr2ogr select feature class from multiple filegdb
This works. Where I went astray was thinking multiple input files were allowed, similar to gdal_merge. Also, much to my delight, input gdb-in-zipfiles work, although with hundreds of apparently harmless Recode UTF-8 errors.
Mar
24
comment How does the geoprocessing results window store the tasks?
FWIW, the bug is still present in 10.3. I logged it with Esri, BUG-000082214 - [Renaming a result in the Results window is not maintained when an MXD is closed and reopened.] (link here, once it gets published).
Mar
14
comment Improving ArcGIS Results saving and manipulating
Thanks! It's under %AppData%\Roaming for me. That does look to be a trove of good information for what-happened-here forensics. It's usability leaves much to be desired. For instance the command lines are full of '" and would need to parsed before re-using or keeping for documentation. I wonder what the relationship between these logs and results are? If we could feed the logs to (the better parts of) Results UI there's a lot more things possible.
Mar
14
comment Improving ArcGIS Results saving and manipulating
Thanks for some things I didn't know about! Rebuttals: saving arccatalog results: I use Arccatalog when no map needs making, e.g. data conversion. It's generally faster to start than Arcmap, and doesn't has as much stuff in the way. Bottom line is: I use a tool to do a chain of things, I want to save the steps.; Fc2Fc gp tool is not same as Data>Export (e.g. no "selected records"); Drag to shared: nope, can't do it. When I let go nothing happens; maybe a version bug? Using 10.3. Knowing it works for others, I'll dig.
Mar
12
comment Splitting shapefile into separate shapefiles for each feature using QGIS/GDAL/SAGA?
is this different from the plugin suggested by @oeon?
Mar
12
comment Splitting shapefile into separate shapefiles for each feature using QGIS/GDAL/SAGA?
this isn't a complete duplicate, the Q linked to is ArcGIS only while this one is open to other platforms. An important difference for me today ;-)
Mar
9
comment SQL-query in arcpy - SELECT WHERE feature between two values
perhaps failing because the numbers are being compared as strings instead when BETWEEN used, while < forces numeric(?)
Mar
2
comment How to copy attributes from one polygon layer to another?
for people wondering what happened to the "Celenius" mentioned various places in this thread: now know as @djq, and his/her answer is here. Kudos to wayback machine: web.archive.org/web/20120127210858/http://gis.stackexchange.com/…
Mar
2
comment Raster diff: how to check if images have identical values?
@Aaron, I got pulled off the project to do other things. Part of that was because the development time kept growing: too many edge cases to handle automatically, so the decision was made to throw the problem back at the people generating the images rather than fix them. (e.g. "Your disk quota is X. You learn how to work inside it.") However gdalcompare.py showed great promise (see answer)
Feb
26
comment Clipping faster (i.e. in bulk/batch) in ArcGIS for Desktop?
Thank you Alex, this was the essential kickstart I needed for ArcGIS desktop map package, with clipping.
Feb
26
comment Set arcpy command line parameter same as Tool parameter
and here's the script that started it all: github.com/maphew/arcplus/blob/master/ArcToolbox/Scripts/…