13,103 reputation
1372159
bio website maphew.com
location Yukon Territory, Canada
age
visits member for 4 years, 11 months
seen Jun 30 at 22:17

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
6
comment Enabling public viewers and private editors of feature service on ArcGIS Online For Organizations?
I don't see how role-based accounts would change or protect things meaningfully. A scripted scheduled task to republish as another completely read-only layer might be workable. Ensuring reliability might take some doing. Please let me know how Esri responds, here or personally.
May
4
comment Raster diff: how to check if images have identical values?
I folded in the gdal equivalent, adapted from gis.stackexchange.com/questions/32995/…
May
4
comment How to check if a file is a valid raster image?
Belatedly realised I picked a bad example. For comparing "does result have same data as input" the best solution is one which does test for content validity. It wouldn't be safe to delete the original file just because the compressed file can be read without error. Correct solution for the first example is gis.stackexchange.com/questions/111954/…
May
1
comment Enabling public viewers and private editors of feature service on ArcGIS Online For Organizations?
and here's a screenshot in your own app: i.imgur.com/ROeNA48.png
May
1
comment Enabling public viewers and private editors of feature service on ArcGIS Online For Organizations?
Found a way in. Look at "Buildings" feature service. There's a new record with NAME=Fake Building made by matt, to the north east off Old Paper Mill road. i.imgur.com/hi03EqU.png. Is this feature service supposed to locked from public editing?
May
1
comment Enabling public viewers and private editors of feature service on ArcGIS Online For Organizations?
I'm interested in following through on this, please ping me at matt.wilkie@gov.yk.ca. I confirm that attempting to view item details of the FS link above fails with 404 not found, ditto for "Buildings" and "Parking" layers from with the app. I'd like to go over the details of your configuration as compared to mine (screenshot etc.). Thanks!
Apr
24
comment Unable to rotate Marker Line Symbols
In that case you might be able to use the "flip all" check box to reverse flow direction depiction. For ArcInfo we had a "stream flipper" AML which would use a DEM to put the coordinate pairs in each line in the order of stream flow (uplsope to downslope). There's probably something similar for arcpy.
Apr
22
comment Different page sizes in Data Driven Pages?
...hmmm, maybe just not possible. See related gis.stackexchange.com/questions/39042/…
Apr
22
comment How do I change geotiff “no data” color to white/transparent rather than black?
@MichaelMiles-Stimson we should delete these meta comments now.
Apr
22
comment How do I change geotiff “no data” color to white/transparent rather than black?
@Chau should delete these meta comments now.
Apr
22
comment How do I change geotiff “no data” color to white/transparent rather than black?
link fixed, thanks for note! @SteveBennett we should delete these meta comments now.
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 Enabling public viewers and private editors of feature service on ArcGIS Online For Organizations?
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).