12,509 reputation
240107
bio website linkedin.com/in/ryankdalton
location Whitefish, MT
age 41
visits member for 4 years, 2 months
seen yesterday

I am particularly interested in location analytics, blending Business Intelligence with spatial analysis. Examples include retail/real estate site selection, trade area analysis, customer research, and marketing through demographic analysis.

I use Python for process and workflow automation, database reporting & manipulation, and developing new spatial tools.

I've been a GIS professional for 15+ years, most of which using ESRI tools (since Arc/Info 7.x). More recently I find myself using more open-source tools (QGIS, PostGIS, GDAL/OGR, web-based tools) and ultimately choosing "the right tool for the job" rather than being tied to a single vendor or toolset.


Oct
16
comment Generating Heat Maps with GeoHash
Are you hoping to generate a continuous values heat map (like temperatures based on weather-station readings; example) generated from the points in your GeoHash file, or are you trying to create a choropleth map of polygons that would be associated with areas the points are in?
Oct
16
comment ArcMap Export PDF vs arcpy Export PDF scale differences
That is a very common issue. Great suggestion!
Oct
10
comment What units are shape_length in?
Is your source geodatabase (or shapefile) layer in "Canada Albers Equal Area Conic" projection, or maybe just the ArcMap data frame?
Oct
8
comment If do not want to use pgRouting then what?
Have you read through the other popular questions tagged with routing such as Alternatives to pgRouting and Are there newer routing algorithms (than Dijkstra, A*) in GIS databases?? If so, how do their responses not answer your question? What additional information might you be looking for?
Oct
8
comment Leaflet - very basic, simple routing - OSM & Google Maps
Have you already tried the other Leaflet plugins listed under the Routing and route search subcategory? How have those worked for you?
Oct
7
comment ArcGIS 10.1+: Allow a model tool to run on any computer
Good find. Another option would be to point all of that intermediate data to the in_memory workspace. It would eliminate specific references to a location on disk, and might even speed up your model processing. Even though Ways to Speed Up Python Scripts Running As ArcGIS Tools references using Python, the use of the in_memory workspace applies the same for ModelBuilder.
Oct
3
comment How do I download all features with a particular tag?
Have you tried the OSM Overpass API? What type of features are you trying to download? For example, roads aren't typically tagged with a locality name.
Sep
30
comment Can QGIS read an ODBC connection?
If you are having problems with this approach, check QGIS 2.4 access .mdb add error
Sep
30
comment Can QGIS read an ODBC connection?
Excellent answer to a similar question at QGIS 2.4 access .mdb add error
Sep
30
comment QGIS 2.4 access .mdb add error
@GisDoodler, excellent post!
Sep
29
comment QGIS 2.4 access .mdb add error
Did you follow my "accepted answer" (link to my answer here) instructions that are in the question "Can QGIS read an ODBC connection"?
Sep
25
comment Google Maps, here maps data in one database
I'm guessing the user is referring to Nokia HERE.com
Sep
23
comment Is there a standard for the specification of .prj files?
I wouldn't call it a standard, but ESRI KB Article 14056 HowTo: Create projection metadata (.prj) files for shapefiles does demonstrate their method for creating a prj from scratch.
Sep
23
comment Listing all feature datasets and classes from multiple geodatabase into CSV file?
A couple of similar questions & answers. I think the first will answer your question, or the 2nd will at least answer part 1 of your question: Creating table containing all filenames (and possibly metadata) in File Geodatabase? or Listing all feature classes in File Geodatabase, including within feature datasets?
Sep
18
comment Sites that demo freely available Basemaps
@perrygeo, you should convert your comment to an "Answer" so that sfletche can accept your answer and close this question.
Sep
3
comment Word cloud labels in QGIS from database
Nothing specific to QGIS, but a couple of other similar questions are Fitting a word/tag cloud into geographic boundaries and How to create spatial tag clouds or “tag maps”. You can find these and other similar questions by searching "tag + cloud".
Sep
3
comment Most Up-To-Date Source for US Zip Code Boundaries
Is it possible for an EDDM user to download/import polygon zip code boundaries into traditional GIS software? Or is there another (licensing) option for using the ZIP code boundaries within GIS software?
Sep
3
comment How to draw ploygon in leaflet that use event?
Some added details would be helpful, here. Are you wanting to draw a circle of a particular size on-click? Maybe a mocked-up picture would demonstrate what you are looking for.
Sep
3
comment Installed PostGIS extension not listed for database
@MickyInTheSky, check out how to Change schema of multiple PostgreSQL tables in one operation for migrating your data to another schema.
Sep
3
comment My woes rendering shape files on web-based mapping application
What type of data? Points, lines, polygons? Do you need the features to be "interactive" (ie- click for an information popup, etc)? The more information you can provide on your use case, the better the answers you will receive.