This Blue Marble Desktop download file contains both Geographic Calculator and Geographic Transformer. If you have already downloaded the latest Blue Marble Desktop or the latest Desktop Edition of Geographic Transformer, you've already downloaded this file and simply need to install it to run Geographic Calculator 7.4.

This download file can be used for any Blue Marble Desktop license type.

Please note that if you are upgrading to this version of the software, you will need to remove any previous versions of the Geographic Calculator before installing version 7.4.

If you are evaluating the Geographic Calculator, you may use the License Wizard to obtain a 7 day temporary license. Please explore the user interface and features of the product. You will be able to perform interactive coordinate transformations, file conversions and limited point database conversions to assist in your evaluation.

IMPORTANT NOTICE:
If you are installing this version as an upgrade to previous version, please follow these directions:

Note: Calculator 7.0 workspaces are not compatible with 7.4 workspaces, however, latter version workspaces should be ok. To be safe you should make notes on your workspaces prior to installing 7.4.

1.) If you have created custom Coordinate Systems in a version of Transformer previous to 6.0 or Calculator previous to 7.0, please move your 'geocalc.dat' file (the parameter database) to a new location to avoid any custom coordinate systems being overwritten..
2.) If you had Calculator 7.0 installed and have created custom Coordinate Systems there, please backup your 'custom.xml' found in 'C:\Documents and Settings\All Users\Application Data\Blue Marble Geographics\Geographic Calculator\7, 0, 0, 0\DataSource'.
3.) It is not necessary to uninstall the Calculator 7.x, but it is recommended. If your version is older then 7.0 please uninstall it now.
4.) Install Blue Marble Desktop. This will insure we install our latest version of the geocalc.xml file.
5.) Once you have Blue Marble Desktop running, you can import your old geocalc.dat file by selecting 'Import GeoCalc DAT' from the Options menu.
6.) To use a previous custom.xml, it will need to be copied to the following directory for Windows XP:
C:\Documents and Settings\All Users\Application Data\Blue Marble Geographics\Blue Marble Desktop\DataSource\
or for Windows Vista:
C:\ProgramData\Blue Marble Geographics\Blue Marble Desktop\Datasource
7.) Please see the Release Notes for more details of this process.