Derek Swingley's user avatar
Derek Swingley's user avatar
Derek Swingley's user avatar
Derek Swingley
  • Member for 13 years, 4 months
  • Last seen more than a month ago
51 votes

Accounting for Colour Blindness when designing maps?

48 votes
Accepted

Learning Python programming with generic GIS goals in mind?

45 votes
Accepted

Maximum number of point features in an OpenLayers vector layer

35 votes
Accepted

Why has Web Mercator (auxiliary sphere) become the web map standard?

34 votes

Free tool to convert ArcGIS layer package (*.lpk) to shapefile (*.shp)?

20 votes
Accepted

What are Valid feature class and table names in ArcGIS Desktop?

19 votes
Accepted

How to use Select by Attributes query with semicolons?

17 votes

Seeking freely available GIS books?

16 votes

Are North Arrows Pointless?

15 votes
Accepted

Permanently reordering fields in data (shp, gdb) without using FME or another ETL tool

15 votes
Accepted

How to reverse geocode with ArcMap?

15 votes
Accepted

Is the ArcGIS Server JavaScript API free to use?

14 votes
Accepted

Displaying raised error messages to user in ArcGIS Geoprocessing Results window?

14 votes
Accepted

Creating script tool that will create copy of feature class and offset it by given distance using ArcPy?

14 votes

Creating 9.3 version of geodatabase in ArcMap 10?

13 votes
Accepted

Adding custom feature attributes to shapefile using OGR in Python

13 votes
Accepted

VB scripting in ArcGIS Field Calculator?

13 votes
Accepted

ESRI JSON Polygon Ring Orientation?

13 votes
Accepted

Using VBA in ArcMap field calculator?

13 votes
Accepted

Browser support for ArcGIS API for JavaScript?

11 votes
Accepted

Draw a point with ArcGIS Javascript API

11 votes
Accepted

getExtent() in OpenLayers returns strange values

11 votes
Accepted

Is it possible to use esri.dijit.Popup for editing

11 votes
Accepted

Updating Lat/Longs and actual position of point shapefile using arcpy.UpdateCursor()?

10 votes

Changing data source of layers with ArcPy?

10 votes
Accepted

JSAPI - how to add a graphic on top of another graphic in the same layer?

9 votes

How to add or remove layers using ArcGIS API for JavaScript?

9 votes
Accepted

Why does a cache service need to load first when a dynamic service is involved?

9 votes
Accepted

How can I display this polygon in Google Maps, properly

9 votes
Accepted

Clipping raster using polyline or polygon using ArcGIS Spatial Analyst?

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