Does anyone have the parameters handy for creating a NAD83(CONUS) datum in TBC? I’m working with a surveyor to create drone data in EPSG 2965, which doesn’t match NAD83(2011) coordinates…
PROJCRS[“NAD83 / Indiana East (ftUS)”,
BASEGEOGCRS[“NAD83”,
DATUM[“North American Datum 1983”,
ELLIPSOID[“GRS 1980”,6378137,298.257222101,
LENGTHUNIT[“metre”,1]]],
PRIMEM[“Greenwich”,0,
ANGLEUNIT[“degree”,0.0174532925199433]],
ID[“EPSG”,4269]],
CONVERSION[“SPCS83 Indiana East zone (US survey foot)”,
METHOD[“Transverse Mercator”,
ID[“EPSG”,9807]],
PARAMETER[“Latitude of natural origin”,37.5,
ANGLEUNIT[“degree”,0.0174532925199433],
ID[“EPSG”,8801]],
PARAMETER[“Longitude of natural origin”,-85.6666666666667,
ANGLEUNIT[“degree”,0.0174532925199433],
ID[“EPSG”,8802]],
PARAMETER[“Scale factor at natural origin”,0.999966667,
SCALEUNIT[“unity”,1],
ID[“EPSG”,8805]],
PARAMETER[“False easting”,328083.333,
LENGTHUNIT[“US survey foot”,0.304800609601219],
ID[“EPSG”,8806]],
PARAMETER[“False northing”,820208.333,
LENGTHUNIT[“US survey foot”,0.304800609601219],
ID[“EPSG”,8807]]],
CS[Cartesian,2],
AXIS[“easting (X)”,east,
ORDER[1],
LENGTHUNIT[“US survey foot”,0.304800609601219]],
AXIS[“northing (Y)”,north,
ORDER[2],
LENGTHUNIT[“US survey foot”,0.304800609601219]],
USAGE[
SCOPE[“Engineering survey, topographic mapping.”],
AREA[“United States (USA) - Indiana - counties of Adams; Allen; Bartholomew; Blackford; Brown; Cass; Clark; De Kalb; Dearborn; Decatur; Delaware; Elkhart; Fayette; Floyd; Franklin; Fulton; Grant; Hamilton; Hancock; Harrison; Henry; Howard; Huntington; Jackson; Jay; Jefferson; Jennings; Johnson; Kosciusko; Lagrange; Madison; Marion; Marshall; Miami; Noble; Ohio; Randolph; Ripley; Rush; Scott; Shelby; St Joseph; Steuben; Switzerland; Tipton; Union; Wabash; Washington; Wayne; Wells; Whitley.”],
BBOX[37.95,-86.59,41.77,-84.78]],
ID[“EPSG”,2965]]
Is this what you wanted?
You can always type in EPSG 2965 at Google Search and it will find the definition for you - you can create a Coordinate System in Coordinate System Manager that has these parameters
Alan
The parameters for EPSG 2965 seem to be the same as those in TBC for Indiana East / NAD83 / 2011 so I am not sure that they will make any difference in the outputs.
I would check your units US Feet vs International Feet
Alan
I agree that the parameters for EPSG 2965 seems to match Indiana East / NAD83(2011), or EPSG 6459. However, there is a known datum shift between NAD83(CONUS) and NAD83(2011). When I export the NAD83(2011) images from TBC and insert into Civil 3D on EPSG 2965, I’m seeing a discrepancy of a couple feet. When I use QGIS to do a best estimate of converting to 2965, the images correlate with the control points in Civil 3D 2965. But I can’t get the point cloud to convert well and show up nicely in Civil 3D, so I’m wanting to process the drone data based on EPSG 2965, and to do that I need the NAD83(CONUS) datum in the TBC coordinate system database and correct. Perhaps there is a US Feet versus International feet conversion happening behind my back somewhere.