Often is it necessarily, for an address characteristic, e.g. the place name or the postal code, to establish a local relationship - a georeference. The georeference can be used e.g. to show a customer the nearest chain store by doing a proximity search. On the basis of the georeferences business zones, statistics or general maps can be made. Towns, municipalities and postal codes can be assigned to the superordinated administrative units.
Distances between places or postal areas can be determined with the coordinates contained in the database tables. For that the georeferences are available in all country database tables as UTM coordinates on the natural and an uniformly meridian strip and as geographical coordinates in degree and deg/min/sec notation. With the elevation data from a Digital Elevation Model the ground level height of each place can be determined.
All these possibilities are offered by the country database tables, which are briefly described in the following text.
An exact data description and information for the use of the database tables and a lot of test data you can find in the 
download file.
Available country groups and single countries Data fields of the country data tables Quality of the Geodata of the respective countries Use of the coordinates contained in the country data tables Conversion to the necessary data format Acquisition of a license and right of use of the database tables Pricing and ordering Note to the download of the test data and the data converterCountry groups Country group Germany/Austria/Switzerl. (5 files) Country group Germany + neighbors (14 files) Country group West-Europe (37 files) Country group East-Europe (26 files) Country group Pan-Europe (63 files) Country group North-America (6 files) Country group Central-America (14 files) Country group South-America (11 files) Country group Austral-Asia (7 files) Country group Asia (33 files) Country group Africa (23 files) Country group World-wide (157 files) Geodata North-America Bermuda (en 730) Greenland (en 23) Saint Pierre (fr 2) Canada-ZIP3 (en 8,000) Mexico (es 88,000) USA (en 50,000) Geodata Central-America Costa Rica (es 470) Guatemala (es 520) Nicaragua (es 150) Cuba (es 210) Haiti (fr 240) Panama (es 590) Dominic. Rep. (es 890) Honduras (es 30,000) Puerto Rico (en 180) El Salvador (es 260) Jamaica (en 300) US Virgin Isl (en 16) Guadeloupe (fr 33) Martinique (fr 34) Geodata South-America Argentina (es 22,000) Colombia (es 12,000) Peru (es 1,700) Bolivia (es 1,300) Ecuador (es 1,300) Uruguay (es 310) Brazil-ZIP5 (pt 22,000) French Guiana (fr 25) Venezuela (es 2,400) Chile (es 340) Paraguay (es 320) Geodata Africa Algeria (fr 2,300) Ivory Coast (fr 180) Reunion (fr 37) Angola (pt 520) Kenya (en 3,500) Senegal (fr 370) Benin (fr 520) Madagascar (fr 1,400) South Africa (en 11,000) Burundi (fr 6,900) Mali (fr 680) Swaziland (en 76) Cameroon (fr 330) Mayotte (fr 17) Tanzania (en 2,700) Cape Verde (pt 31) Morocco (fr 6,600) Tunisia (fr 4,800) Chad (fr 340) Mozambique (pt 430) Uganda (en 5,100) Ethiopia (en 560) Nigeria (en 50,000) Geodata Asia Afghanistan (en 390) Indonesia (en 14,000) Pakistan (en 11,000) Armenia (en 890) Iraq (en 210) Philippines (en 41,000) Armenia (hy 890) Iraq (ar 210) Singapore (en 120,000) Azerbaijan (az 1,000) Israel (he 3,100) South Korea (ko 50,000) Bangladesch (en 1,300) Israel (en 3,100) South Korea (en 50,000) Bhutan (en 200) Japan (ja 120,000) Sri Lanka (en 1,700) Brunei (en 540) Japan (en 120,000) Taiwan (zh 370) China (zh 33,000) Malaysia (ms 2,800) Taiwan (en 370) China (en 33,000) Mongolia (mn 1,600) Thailand (en 7,200) Georgia (ka 19) Mongolia (en 1,600) Thailand (th 7,200) India (en 150,000) Nepal (en 910) Vietnam (vi 10,000) Geodata Austral-Asia Am. Samoa (en 1) Marshall Isl. (en 2) Papua N.Guin. (en 310) Australia (en 16,000) New Zealand (en 45,000) Guam (en 21) North Mariana (en 3) Geodata West-Europe Andorra (ca 47) GrBrit-ZIP4 (en 100,000) Monaco (fr 120) Austria (de 46,000) Greece (el 5,700) Netherl-ZIP4 (nl 11,000) Belgium (fr 2,700) Greece (en 1,100) Norway (no 7,000) Belgium (nl 2,700) Guernsey (en 8) Portug-ZIP4 (pt 5,100) Cyprus (en 1,100) Iceland (is 150) San Marino (it 10) Cyprus (el 1,100) Ireland (en 3,300) Spain (es 59,000) Denmark (da 1,200) Isle of Man (en 220) Sweden (sv 14,000) Faroe (sv 130) Italy (it 38,000) Switzerland (fr 5,800) Finland (sv 3,700) Jersey (en 4) Switzerland (it 5,800) Finland (fi 3,700) Liechtenstein (de 18) Switzerland (de 5,800) France (fr 68,000) Luxembourg (de 8,100) Vatican (it 1) Germany (de 100,000) Luxembourg (fr 8,100) Gibraltar (en 5) Malta (mt 11,000) Geodata East-Europe Albania (sq 510) Ex-Yugoslav. (en 1,700) Russia (ru 43,000) Belarus (en 20,000) Hungary (hu 4,000) Russia (en 43,000) Belarus (ru 19,000) Latvia (lv 11,000) Serbia (sr 4,700) Bosnia/Herc. (bs 660) Lithuania (lt 43,000) Slovakia (sk 4,300) Bulgaria (bg 5,800) Macedonia (mk 330) Slovenia (sl 6,200) Bulgaria (en 5,800) Moldova (ro 1,900) Turkey (tr 53,000) Croatia (hr 7,000) Montenegro (sr 3,300) Ukraine (uk 36,000) Czech Rep. (cs 16,000) Poland (pl 51,000) Ukraine (en 36,000) Estonia (et 5,800) Romania (ro 49,000) High resolution postcodes Brazil-ZIP8 (pt 760,000) GrBrit-ZIP7 (en 6,4 Mio) Portug-ZIP7 (pt 250,000) Canada-ZIP6 (en 840,000) Netherl-ZIP6 (nl 1,4 Mio)
For each country the language variety in ISO 3166-1 ALPHA-2 format and the number of available records are written in parenthesis. Point data of other countries we offer on request.
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The available country data tables contain different counts of data records with georeferenced local data and postal data.
Detailed information, linkage possibilities with other database tables, hints to the use of the georeferences and the formulas for distance calculation you find in the files of the download or in the detailed 
Data Specification.
These data fields are contained in the country data tables:
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The geodata geodata of the product "Geodata International" are from official sources, they are not part of open-source data!
The geodata described here are subject to a continuing quality control. The raw data of the individual countries as basis for "Geodata International" are recorded from there residents authorities, institutions and suppliers. As result the quality of the raw data depends on the infrastructure and the possibilities inside the respective countries. Geodata of the industrial nations exhibit therefore normally a higher quality than those of the developing countries. The geodata are prepared, computed and standardized from these raw data with best knowledge by specialized experts. We have to emphasize expressly that from the raw data resulting deviations or error of a small extent can not excluded in any case and cannot be criticized.
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The coordinates are present as geographic coordinates longitude/latitude and as UTM coordinates with UTM easting and UTM northing on the natural meridian strip and on a uniform meridian strip.
Because UTM coordinates are converted country-wide to a uniform meridian strip, distances between two points can be calculated by the simple execution of the Pythagoras theorem.
That has the advantage in relation to the computation with geographical coordinates (see below) that it is substantially simpler and much faster.
The result is the distance between the points in meters.
Detailed information and hints to the use of the georeferences can be found in the files of the download or in the detailed Data Specification.
Formula for the distance calculation with UTM coordinates: difEast := abs(UTM_E_CENT_1 - UTM_E_CENT_2) difNorth := abs(UTM_N_CENT_1 - UTM_N_CENT_2) distance := sqrt(difEast * difEast + difNorth * difNorth) with UTM_E_CENT_1: Easting of the first coordinate UTM_N_CENT_1: Northing of the first coordinate UTM_E_CENT_2: Easting of the second coordinate UTM_N_CENT_2: Northing of the second coordinate abs(): Absolute value sqrt(): Square root distance: The result is the distance in meters
Geographic coordinates are indicated in longitude and latitude. Usually longitude and latitude are represented in the degree/minute/second notation. For further calculations with the coordinates, the minute and second portions must be converted into parts of a degree. The representation of latitude and longitude in degrees is called the decimal notation. For a distance computation the longitude and latitude of the first point (Lon1, Lat1) and the longitude and latitude of the second point (Lon2, Lat2) are needed. If the latitude has a minus sign, the point is on the southern earth hemisphere, otherwise on the northern earth hemisphere. If the longitude has a minus sign, the point is situated west of the Greenwich meridian, otherwise east of it. If the latitude has a minus sign, the point is on the southern earth hemisphere, otherwise on the northern earth hemisphere.
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Data Description
Representation of the longitude and latitude of a coordinate in the
degree/minute/second notation (Data fields LON_GEO and LAT_GEO).
| Two to three digit degree portion of the coordinate (d)
| | Two digit minute portion of the coordinate (m)
| | | Two digit second portion of the coordinate (s)
| | | | Decimal portion of one second(s)
dddmmss.ss
with
d: Degree portion of longitude or latitude
m: Minute portion of longitude or latitude
s: Second portion with decimals of longitude or latitude
Conversion of the lengths and widths of the two coordinates into the
decimal notation. This is not necessary if Geographic coordinates in
degree notation are used directly (data fields LON_DEC and LAT_DEC).
Lon1d = d + (m / 60) + (s / 3600)
Lat1d = d + (m / 60) + (s / 3600)
Lon2d = d + (m / 60) + (s / 3600)
Lat2d = d + (m / 60) + (s / 3600)
with
Lon1d: Decimal longitude of the first point
Lat1d: Decimal latitude of the first point
Lon1d: Decimal longitude of the second point
Lat1d: Decimal latitude of the second point
For further computation the longitude and latitude are converted into
radians. The unit of the radian is [rad].
Lon1r = Lon1d * PI / 180
Lat1r = Lat1d * PI / 180
Lon2r = Lon2d * PI / 180
Lat2r = Lat2d * PI / 180
with
Lon1r: Radian of the longitude of the first point
Lat1r: Radian of the latitude of the first point
Lon1r: Radian of the longitude of the second point
Lat1r: Radian of the latitude of the second point
PI: Circle constant Pi (3,14...)
Now the longitudes and latitudes of the two coordinates are so far prepared
that they can be inserted into the formula for the distance computation.
distance = r * acos[sin(Lat1r) * sin(Lat2r)
+ cos(Lat1r) * cos(Lat2r) * cos(Lon2r - Lon1r)]
with
sin(): Sinus function
cos(): Cosinus function
acos(): Arcus Cosinus function
r: Earth equatorial radius = 6378137 meter
distance: The result is the distance in meters
The conversion of the geographic and UTM coordinates into state-specific coordinates or in another coordinate and/or reference system, can be accomplished with the coordinate transformation program TRANSDAT or as purchase order.
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The database tables are present in the file format CSV (Comma Separated Values). The character set used is UTF8. This format is used often and in most cases you can import data directly into your own data system.
The downloadable freeware program CONVERT converts the available database tables to other data formats and character sets with the necessary sortings and selections.
With the program, for example, CSV data can be converted to the SDF format (Simple Document Format) or to the dBase format.
For the use of the data on different platforms it is possible to select between the character sets ASCII, ANSI, UTF8 and UniCode.
Thus the import of the data in any database management system or file system will be possible.
For the import in MySQL or SQL databases the necessary "CREATE TABLE" script can be generated. Further the selection of the data on data fields and data records is possible. In addition the data can be sorted on base of the data fields. Data from several files can be joined to a common file.
Here you can have a look to some screenshots of the converter program.
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The license models described here require only a unique payment.
No additional payments are raised as a function of the number of installations or on the service life of the license.
The service life is unlimited.
The database tables presented here can be used as data volumes of computer programs and Internet sites (applications) and can be passed in the context of the application to customers. The database tables are licensed for different types of use:
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Pricing and ordering information for the database tables presented here and for other software products can be found in the Price list.
Order the "Geodata International" with the electronic Order Form.
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A selection of test data of some countries with the detailed data description and with informations about the use of the data can be downloaded as ZIP packed file by the Internet.
The Freeware program CONVERT, developed by KilletSoft, for converting and adaptation of the data is ready for download if necessary.
For unpacking the download files you need an unzip program, which you can download from this side.
In order that you always are well informed about our company, we write actual news, current information and special offers here into this column.
NTv2 calculations
KilletSoft provides for their produkts GEoDLL and TRANSDAT encrypted NTv2 files of the Federal States Hesse, Saxony and Thuringia for highly accurate calculations.
Read more ...
Administrative Reform in Mecklenburg-Western Pomerania
The administrative data bases of the Federal Republic of Germany "Geodata Germany" have been updated to the reference date of September 15th, 2011!
The reason therfor are the essential modifications due to the Administrative Reform in the Federal State Mecklenburg-Western Pomerania.
Read the Press Release ...
Win32 and X64
The Dynamic Linc Libraies GeoDLL and BetaDLL supports 32bit and 64bit architecture now.
The DLLs are written in C++ and were developed with Microsoft Visual Studio 2010.
Are the reference systems WGS84 and ETRS89 really identical?
Inclusion of the continental drift for the transforming of GPS coordinates with the software products TRANSDAT and GeoDLL.
Read the Press Release ...
Translators wanted!
The latest versions of the programs TRANSDAT and SEVENPAR support language files for the programs interface.
Since the language dependent texts are managed in external files, new languages can be added at any time by creating new language files.
Every user of the program now can compile language files by himself.
WINDOWS© 7 compatible
Our software has received the certificate "WINDOWS© 7 compatible".
So it complies with the compatibility standards of the Microsoft operating systems WINDOWS© 7.
INSPIRE©
GeoDLL and TRANSDAT supports Europe-wide the ETRS89 coordinate systems proposed by INSPIRE©.