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visits member for 2 years, 9 months
seen Aug 31 '12 at 22:18

I'm a Sr. Product Engineer at Esri specializing in coordinate reference systems, map projections, and geographic (datum) transformations. I've worked at Esri for 18 years, starting immediately after finishing a M.S. in Geodetic Science at Ohio State.


Sep
24
awarded  Autobiographer
Mar
1
awarded  Yearling
Aug
27
revised Project layer with custom projection
Added NAD27 and NAD83 exceptions to the rule; then fixed formating
Aug
27
answered Project layer with custom projection
Aug
24
answered how to reproject the coordinate system from WGS84 to UTM with ProjNET
Aug
18
answered Do Different ArcGIS for Desktop License Levels Process Faster?
Aug
2
answered Are long lines in shapefiles to be considered geodesics or straight lines in the 2D latlong space?
Jul
31
comment Problem with spatial reference system / shapefile projection
I don't know whether it helps, but a possible EPSG code for that coordinate reference system is 2263 (NAD83 / New York Long Island (ftUS)).
Apr
24
awarded  Editor
Apr
24
revised EPSG operations and operation methods
add an example of when you might not want to use a default transformation as determined by a software package
Apr
24
awarded  Teacher
Apr
23
answered EPSG operations and operation methods
Mar
31
comment How to Intersect a layer with custom CRS with NED data?
It's 2227, NAD83 State Plane California zone 3 (III) in US survey ft. The NED data is using 4269, NAD83. I found the CRS in the EPSG registry, epsg-registry.org, by knowing the lat/lon. It's always useful to say where data is located.
Mar
27
awarded  Citizen Patrol
Mar
19
awarded  Supporter
Mar
1
comment Adding EPSG:3857 / 900913 to Oracle's mdsys.cs_srs
My guess is that PROJECTION ["Popular Visualisation Pseudo-Mercator"] is not a supported map projection in 11.2.0.1 and/or there are other tables that must be updated.