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- ******* GeoGrid *******
-
- by R÷bbe Wⁿnschiers
- *version 2.0*
-
- *** Description ***
- GeoGrid calculates the grid reference from a geographical position you enter
- as Deg░Min'Sec'' latitude and longitude, respectively. Furthermore, it shows
- the position on a earth map. GeoGrid also contains a editable database with
- presently over 800 cities. You can search the database for a city, which will
- then be shown on the earth map with its corresponding coordinates. The data-
- base can be edited and supplemented from within the application.
- Alternatively, you can pick a location on the screen using the pointer pen.
-
- Version 2.0 incudes the following grid references:
- * British Isles (Airy Ellipsoid)
- * Finnish KKJ International Ellipsoid (Zone 1-4)
- * Ireland (modified Airy Ellipsoid)
- * Sweden (Bessel Ellipsoid)
- * UTM International Ellipsoid
- * UTM WGS84 Ellipsoid
-
- For UTM conversions, the option exists for automatic calculation of the
- Central Meridian or manual entry of the Central Meridian. The calculation
- assumes that the standard UTM longitude zones are 6 degrees wide, except for
- the special zones around Svalbard and south-west Norway. For projections
- outside of the standard UTM zones you should manually enter the Central
- Meridian for the projection required.
-
-
- *** MENU ***
- GeoGrid is menu driven. The menu is divided as follows:
-
- *Cities
- -Search Search the city database
- -Edit Edit the current entry
- -Add Add a new entry to the database [Decimal]
- -Show Show the current entry on the map and calculate grid data
-
- *Location
- -Enter Enter a position as Lat./Long. [Deg░Min'Sec'']
- -Grid Choose a grid reference for calculation
- -Show Show the current position on the map and calculate grid data
-
- *Extras
- -About Show version and contact information
- -Quit Quits the program
-
- NOTE: After you changed either city, position or grid you need to choose
- the menu entry Show for recalculation!
-
-
- *** OUTPUT ***
- The output window gives you a map of the earth with the city or location
- choosen marked as a black circle. In the right panel the city (if choosen),
- latitude and longitude of the city or position, the choosen grid datum, the
- current grid meridian and the grid reference is shown.
-
- You can now use the pointer pen an dipp on a position on the earth map. The
- black circle will move to your position and the corresponding data are shown
- in the right panel. Alternatively, you might use the menu for entering new
- data.
-
- Although care was taken to compute the most accurate output I do not take
- any responsibility. If you find errors in the city database or the calculated
- output, please inform me.
-
-
- *** INSTALLATION ***
- The program comes zipped with two files. The file you just read (readme.txt)
- needs not to be on the Psion. The file GeoGrid.sis can be executed from
- the PC (if you have PsiWin) or from the Psion Series 5. It will create the
- folder GeoGrid in the ...\apps\ folder. A program icon named GeoGrid will
- then appear in the extras menu. The program is not suited to be installed on
- drive D.
-
-
- *** TERMS OF USAGE ***
- The program is freeware. Feel free to use and distribute the program when you
- agree to:
-
- ***************************************************************************
- ** not to sell it ** keep the package together **
- ** tell me were you place it for download **
- ***************************************************************************
-
- Any comments are welcome! I do not take any responsibility for the results of
- using the program, neither physically, nor mentally.
-
- Contact me: rw@biowasserstoff.de
- New versions can be found at http://members.tripod.de/roebbe/