Abstract:
GEOTRANS (Geographic Translator) is an application program which allows you to easily convert geographic coordinates among a wide variety of coordinate systems, map projections, and datums. GEOTRANS runs in Microsoft Windows (95 and NT) and UNIX Motif environments.
The user interface of GEOTRANS is similar to that of a calculator. To convert a set of coordinates, simply select the coordinate system or map projection, and the datum, in which your coordinates are defined, enter the source coordinates, select the coordinate system or map projection, and the datum, to which you want the coordinates to be converted, and click on the Convert button. The resulting coordinates will be displayed. Because the GEOTRANS application stores your previous selections, you can convert additional coordinate sets from the same source by just entering the new coordinates and clicking the Convert button. You can change any of the coordinate system, map projection, or datum selections at any time. Currently, twenty-five different coordinate systems, map projections, grids, and coding schemes, and over two hundred different datums, are supported.
GEOTRANS can also be used to efficiently convert large numbers of coordinates contained in text files. The file format is very simple. A multiline file header defines the coordinate system or map projection, and datum, of the coordinates contained in the file. Following the header, each line contains a single set of coordinates, separated by commas. Using the GEOTRANS file processing interface, you can select an existing file of coordinates to be converted, define the coordinate system or map projection, and the datum, to which you want to convert the coordinates, and specify the name and location of the output file that is to be created. GEOTRANS then converts the input file and creates the output file as a single operation.
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