EPSG
Indiana Department of Transportation (INDOT), Land & Aerial Survey Division. For definition file see http://www.in.gov/indot/InGCS
2015-07-30
Engineering survey.
See proj code 7171 for authoritative metric definition. Defined by Indiana DOT as three separate zones (one for each county) each having identical defining parameter values: see info source.
United States (USA) - Indiana - counties of Dearborn, Ohio and Switzerland.
(0,)
Definition: OGC Well Known Text
PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",38.65], PARAMETER["central_meridian",-84.9], PARAMETER["scale_factor",1.000029], PARAMETER["false_easting",240000], PARAMETER["false_northing",36000]
Definition: OGC Well Known Text 2 (2019)
CONVERSION["InGCS Dearborn-Ohio-Switzerland (ftUS)", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",38.65, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-84.9, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1.000029, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",787400, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8806]], PARAMETER["False northing",118110, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8807]], ID["EPSG",7172]]
Definition: ESRI Well Known Text
PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",240000.0], PARAMETER["False_Northing",36000.0], PARAMETER["Central_Meridian",-84.9], PARAMETER["Scale_Factor",1.000029], PARAMETER["Latitude_Of_Origin",38.65]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Conversion", "name": "InGCS Dearborn-Ohio-Switzerland (ftUS)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 38.65, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -84.9, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1.000029, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 787400, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 118110, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ], "id": { "authority": "EPSG", "code": 7172 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=38.65 +lon_0=-84.9 +k=1.000029 +x_0=240000 +y_0=36000"> <Layer srs="+proj=tmerc +lat_0=38.65 +lon_0=-84.9 +k=1.000029 +x_0=240000 +y_0=36000"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 7172, 'EPSG', 7172, '+proj=tmerc +lat_0=38.65 +lon_0=-84.9 +k=1.000029 +x_0=240000 +y_0=36000', 'PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",38.65],PARAMETER["central_meridian",-84.9],PARAMETER["scale_factor",1.000029],PARAMETER["false_easting",240000],PARAMETER["false_northing",36000]');