TM-WCCS: Transverse Mercator, Wisconsin County Variation
This is a minor variation of the traditional version o the Transverse Mercator projection. This variation supports the Wisconsin County Coordinate System group of coordinate systems. This variation uses a parallel ellipsoid technique to adjust horizontal coordinates for average elevation of the region being mapped.
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Parameter Name |
Description |
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PARM1 |
Longitude, in degrees, of the central meridian. |
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PARM2 |
Average geoid separation in metres of the region being mapped. |
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PARM3 |
Average elevation above the geoid (that is, orthometric height) in system units of the region being mapped. |
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ORG_LAT |
Latitude, in degrees, of the origin of the projection. |
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SCL_RED |
The scale reduction to be applied. This is also referred to as the scale of the central meridian. |
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MAP_SCL |
Used only when defining a coordinate system that is to produce measurements on a scaled paper map. This value is the scale of the map, e.g., 100,000. Normally, this value is set to 1.0. |
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X_OFF |
The false easting to be applied to all X coordinates, selected to cause all X coordinates within the coordinate system to be positive values of reasonable size. |
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Y_OFF |
The false northing to be applied to all Y coordinates. |