7,169 reputation
1641
bio website
location Redlands, CA
age
visits member for 4 years
seen 1 hour ago

I've been working with map projections and datum transformations for years, including in ArcView GIS, ArcInfo 7 and up, MapObjects, and ArcGIS.


5h
reviewed Approve suggested edit on Is anyone successfully using arcpy.ExportMetadata_conversion?
1d
comment Load locations faster in ArcGis network analyst
@overcookedham Your edit is likely to be rejected because you should not ask questions within someone else's answer. If you don't have the rep to comment, ask a new question!
1d
reviewed Reject suggested edit on Load locations faster in ArcGis network analyst
Oct
18
comment Generic Grid to Coordinate System
Yes, you would need more points to georeference/spatially adjust it. Hmmm.
Oct
17
comment Generic Grid to Coordinate System
Do you have access to ArcGIS? It has a "Local" projection that treats the earth as flat relative to the origin point. It also supports an azimuth parameter which might work for your rotation. Otherwise, georeference the data using your favorite GIS software.
Oct
17
awarded  Enlightened
Oct
17
awarded  Nice Answer
Oct
16
comment Is there a way to include code/language for offsets within the “script” at the CRS dialogue screen
Is the data near the equator? Could there be a mix-up between a UTM North and South zone? 8.5 km is too big for a datum mix-up.
Oct
16
reviewed Edit suggested edit on problem to use openstreetmap data file with pgrouting2.0 on PostgreSql9.3
Oct
16
revised problem to use openstreetmap data file with pgrouting2.0 on PostgreSql9.3
fixed duplicated content, improved formatting, new: grammar and spelling fixes
Oct
15
comment Choosing country projections
If the definition isn't already in your ArcGIS installation, you could ask here (or GeoNet) if a later release has it, and if so, what's the WKT. Otherwise, define it in ArcMap and add it to your Favorites for later use.
Oct
14
comment Proj4 String for NAD83(2011) / Louisiana South (ftUS)
Yes, the strings are the same because there isn't separate support for NAD83(2011) in PROJ.4, but if the difference becomes important later, having the correct WKID/EPSG ID could matter.
Oct
14
comment Proj4 String for NAD83(2011) / Louisiana South (ftUS)
EPSG:3452 is the NAD83-based zone, not the NAD83 (2011)-based one (not that it matters in this case!). The OP has it correct in a comment in the code: EPSG:6479.
Oct
14
reviewed Close .geojson extension file is wrong
Oct
14
reviewed Reject suggested edit on How to snap from Polygon/Line to another routing throughout a routable feature?
Oct
14
answered Proj4 String for NAD83(2011) / Louisiana South (ftUS)
Oct
10
comment Improving accuracy of mercator meters conversion to lat/lon
Whatever you're using in GDAL isn't EPSG:3395. When I check with the Esri projection engine, the result matches ProjNet.
Oct
9
answered Choosing country projections
Oct
8
comment Using the Live tracking with internal GPS?
Long shot--what coordinate reference system is your other data using?
Oct
8
comment Unable to export data to ShapeFile in ArcGIS
Hmmm. My default path and name is C:\Users\melita\Documents\ArcGIS\Default.gdb\Export_Output. Did you try to add .shp to this? If so, won't work because of the file gdb name in the path. Can you double check that you have write permissions to the folder you want to use?