11,868 reputation
13398
bio website linkedin.com/in/ryankdalton
location Whitefish, MT
age 41
visits member for 3 years, 8 months
seen 12 hours ago

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.


12h
comment How to get FGDB support in GDAL 1.9 without compiling?
Please see this question for updated answers: File Geodatabase (*.gdb) support in QGIS?
12h
comment Open Source Tool capable of reading Esri File Geodatabase (.gdb)?
Please see this question for updated answers: File Geodatabase (*.gdb) support in QGIS?
Jul
3
comment How to hide all fields at once in QGIS 1.7
Never mind about the code... I figured it out. To revert to the default setting, use: layer.setEditType(i, QgsVectorLayer.TextEdit). But is there a bulk on/off in the GUI?
Jul
3
comment How to hide all fields at once in QGIS 1.7
@Nathan W- Has there been any GUI updates to bulk hide/show in 2.4? If not (for non-techies) what is the appropriate EditType to show the fields (opposite of QgsVectorLayer.Hidden)?
Jun
17
comment How do you hide a feature within a point layer?
I think the "Definition Query" option is the most simple & consistent method to use.
Jun
16
comment PostGIS schemas doesn't show in QGIS
@Allen, please move your "comment" above to an "answer" below and, once StakExchange allows you (I think after 2 days), you can mark your answer as "Accepted" (hit the checkmark next to the answer) to close out this question. Thanks.
Jun
5
comment How to create labeling similar to this map?
The most important keyword that @GISKid used (and is kind of lost in the mix) is in the last sentence: "place the ... label as annotation on the blocks". This will allow you to accurately position every item of the text to meet your needs. Good answer!
Jun
2
comment Building a WebGIS with search functionality for a charity
Very similar to: Suggestions for simple mapping platform for alumni web site. You should also research questions tagged with web-mapping for many similar questions, particularly How to Start Web Mapping?
May
15
comment Is there a way to show a layers feature count in the TOC?
You should start a new question and reference this question in it's body. Thanks
May
5
comment How can I rename multiple feature classes (each different name) using Python?
The Python docs, recommended using str.format(var) over %s. "This method of string formatting is the new standard in Python 3, and should be preferred to the % formatting described in String Formatting Operations in new code." Therefore, more compatible (long-term) code would be arcpy.Rename_management(fc, "{0}{1}".format( fc[0:1], fc[-2:]) ).
May
1
comment Why is shapefile not drawing in expected location after (or before) using Define Projection tool?
Did you contact the author (at the end of the linked page you supplied) and ask? It gives his email and phone number...
Apr
29
comment How to split circles in 8 quadrants
So you you want to split each circle into 8 pie-like wedges? Is that correct? If not, can you provide a graphic of what you are after?
Apr
25
comment Naming your Output feature class?
NOTE: If you are using windows pathnames with one slash (\), you need to convert your path to a raw string literal (where you set the env.workspace variable) using the r directive (see the section at the bottom of the page listed under Paths and the escape character)
Apr
24
comment Error when calculate field using VBscript or Python (slice a field)
Have you tried selecting just a single record and running your script above to confirm it works? If you run the script on the entire dataset, and have even one record where !DATA! is blank or null, it could throw this error if the output field is not nullable.
Apr
22
comment How to remove only donut holes from polygons using ArcGIS Desktop 10.0?
Very similar to How to remove small “salt & pepper” polygons from a layer?, but using a QGIS process. You could probably work with very similar processes in ArcGIS.
Apr
16
comment Seeking Shapefiles of Restaurants in South Florida?
Possible duplicates: GIS data for fast food industry and Available US State or National business (or employer) database lists?
Apr
12
comment Workflow to convert a DWG CAD file to a shapefile
I would recommend looking at How to convert a Visio diagram to a GIS layer, which covers the process of converting a DXF file to shapefile.
Apr
11
comment How can we generate GeoJSON from SQL data with latlong
Does the table include a spatial data type (a geometry), or just lat/long fields? Any other 3rd party addins like ArcSDE? Can you explain your use of the "geoexplorer" tag?
Apr
9
comment Adding layer into ArcMap via Python - .pyt versus .py
Have you tried adding arcpy.RefreshActiveView() to the end of your script? Does this change anything?
Apr
7
comment Leaflet marker cluster by Administrative boundary
Here is a customized "markercluster pie charts" plugin that supports pie charts showing "edges" by type of event. This may give you some ideas.