You will need
  • - personal computer;
  • software Geographic Calculator;
  • the coordinates of the objects.
If the calculated coordinates in degrees, minutes, seconds or fractions of these measurements, your data is in geographic coordinates, i.e. longitude and latitude. When the unit coordinates are given in meters, feet, etc., then the coordinates are projective. The most well-known in Russia, the projection Gauss-Krueger, which is a special case of the transverse cylindrical Mercator projection. This coordinate system is also referred to as SK-42. To have an idea about the position of a point or object on the map or in the GPS with the geographic grid coordinates should be converted from projective to geography. To do this, use a specific example in which the conversion of coordinates of the projection of SK-42 to geographical longitude and latitude parameters Pulkovo 1942.
Open the Geographic Calculator. To convert coordinates of one or more points use the Interactive Conversion tab. You have two fields for coordinate transformation. In each of them specify coordinate system by clicking the Define Coordinate System. Select the right field from the list of group Gauss-Kruger (Pulkovo1942) Coordinate System. Zone in the System, specify respectively the coordinates in the Easting. In this example, the first digit in the seven-coordinate indicates the belonging to the 7th area.
Select the parameters of the datum (Datum) Pulkovo1942. Click the check Units, unit of measure selected should be "meters" (Meters). Clicking Formats, specify the number of decimal places. In this example 2 digits. In the right margin under the window to fill the coordinates will be displayed your chosen system. Enter the coordinate values in the field North/South and East/West.
In the same tabs in the left window, select the required coordinate system for the transformation. In the example given geodetic coordinate system "Longitude/Latitude" (the Geodetic Latitude/Longitude) with parameters Pulkovo 1942.
Menu Formats note how to display coordinates in the tab Geodetic Degrees. Choose the format you need. This can be degrees, minutes, and seconds (DD MM SS), degree degree, degrees, minutes and fraction of minutes with a separator character and prefixes. Example of display will be presented at the bottom of this window.
Click "Convert" (Convert) at the bottom of the field in which coordinates are filled. The result of the conversion will be calculated in the corresponding lines of adjacent fields. In this example the left margin.