Using the coordinate batch converter requires some understanding of the file formats that it can process, to ensure you get the output you want from this software. See below for details on the format and coordinate types required for the inputfile for this process
Guidance on using the batch converter
The coordinate batch converter accepts a plain-text (ASCII) file in a simple format, with one point per line. There are four coordinate types:
- EtrS89 geodetic (latitude and longitude) coordinates;
- EtrS89 cartesian coordinates;
- National Grid easting and northing coordinates; and
- EtrS89 UTM (Universal Transverse Mercator) coordinates.
Note: The fields are comma-delimited and arbitrary length, so it does not matter whether integers are one or two characters, or how many decimal places you give in the real-valued fields. All the lines in a file must be in the same format.
An example format for EtrS89 latitude and longitude points in Degrees, Minutes and Seconds is shown by:
Station name, N, 52, 45, 21.984567, W, 4, 4, 9.563421, 254.7856
where the station labelled "Station name" has EtrS89 latitude North 52 degrees 45 minutes 21.984567 seconds, longitude West 4 degrees 4 minutes 9.563421 seconds, and EtrS89 ellipsoid height 254.7856 metres. For points east and west of the zero meridian, use E and W respectively - do not use negative numbers in any latitude and longitude fields or values greater than 179 in degrees fields. Degrees and minutes values must be integers. Spaces are allowed within the station name field.
It is also possible to enter EtrS89 geodetic coordinates in Degrees and decimal minutes (e.g. DD, MM.MMMMMM) or as Decimal Degrees (e.g. DD.DDDDDD).
The format for EtrS89 cartesian coordinates is shown by the corresponding example for the same physical point:
Station name, 3858722.451, -274520.124, 5054366.142
where the station labelled “station name has EtrS89 cartesian (XYZ) coordinates where X is 3858722.451 metres, Y is -274520.124 metres and Z is 5054366.142 metres.
National Grid coordinates
The format for National Grid easting and northing points is shown by the corresponding example for the same physical point:
Station name, 260447.231, 319617.362, 200.572
where the station labelled "Station name" has National Grid easting 260447.231 metres, northing 319617.362 metres, and orthometric height of 200.572 metres above map datum.
Note: If the height is omitted, please ensure that the northings value is followed by a comma (",") to indicate the empty height field.
EtrS89 UTM coordinates
The format for EtrS89 UTM coordinates is shown by the corresponding example for the same physical point:
Station name, 427834.708, 5845676.096, 200.572, 30
where the station labelled "Station name" has EtrS89 UTM easting 427834.708 metres, northing 5845676.096 metres, orthometric height of 200.572 metres above map datum and lies in UTM zone 30.
Note: If the height is omitted, please ensure that the empty height field is still indicated by 2 commas (",,") between the northings value and the zone number.
The maximum number of lines allowed in one file is 200. To process more lines than this, please download the grid inquest software to install on your own PC.
Error handling: If a file record has incorrect format, or the point is outside the boundary of the National Grid Transformation OSTN02, an appropriate error message will appear instead of a converted point record in the results file.