Projection error

[dcnewell]

I'm trying to convert a shape file of a digital FIRM map, I'm getting an error "the currently selected projection..." reason: Longitude values > 180.00 not allowed.

The meta data for the file is as follows:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 15
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -111.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 0.000038
Ordinate_Resolution: 0.000038
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98

Is there a work around?

[GuthCAD Software Support]

Hi,

Your data is already projected. Select 'None' as the Projection (should already be selected by default.)

best regards,
Software Support

[dcnewell]

The problem is that it's no coincident to existing data, it appears to be a meters to feet issue.

[GuthCAD Software Support]

Hi,

The meta-data that you posted says:

"Planar_Distance_Units: meters", so in theory it should be in meters.

If you need the data to be in feet it can be done in AutoCAD, using the SCALE command.

Alternatively Arcv2CAD does also have a simple Scale option in the 'Projection' options.

- select 'Simple X,Y scaling'
- you need to manually set the scale factor values in the A2C25.INI configuration file. (Locate the XFactorSimple, and YFactorSimple entries in the [Projection] section of the file and set it the conversion factor that you need.)

best regards,
Software Support

[dcnewell]

Thanks, I'll give that a go.