The following article gives details on how to serve shape file data when no .prj file is provided. This article also applies to all pre-2014 versions of GeoMedia even if .prj files are present.
If you are using GeoMedia Desktop version 2014 or higher, and valid .prj files are present for each .shp file, GeoMedia should be able to automatically read the projection directly from the .prj files. As for any first time warehouse connection, it's best to review the coordinate system interrepretated from the .prj files. This can be done using Manage Data tab > Features command to Review the properties of the coordinate system assigned to the feature(s). If the coordinate system is incorrect, consider using the workflow defined in this article.
GeoMedia requires the following files for a sucessful connection:
Determine the Coordinate System
GeoMedia requires information that describes the projection of the shape file data so the shape files can be transformed to the GeoWorkSpace Coordinate System correctly.
Projection information includes:
You need to determine the coordinate system information of the shape files from the data provider. Projection information is sometimes provided as supplementary .prj files or some other metadata files which are supplied with the standard .shp, .shx. and .dbf file structures. Any projection information supplied with the shape files should be considered ancillary to the data. They are usually correct, but since any supplied projection files are not tied to the data, you may find that the projection is occasionally incorrectly defined by the .prj or meta data files. In these cases it is suggested to contact the data vendor/provider.
Define Warehouse Configuration (.ini) File
Once the projection of the shape files is known, you can use GeoMedia’s Warehouse Configuration Utility to create an (.ini) initialization file. The .ini file allows you to define keywords that describe the data. While technically not required, it is encouraged that you consider the possibility to using the .ini file for your non-GeoMedia read-only data sources.
Keep in mind that there is a difference between foot and survey foot. The unit defined in the .prj file may state US_FOOT but further examination shows the unit is described as 0.3048006096012192 which is the number of meters in 1 unit. Since:
1 Survey Foot (SF) = 0.3048006096012192 meters
1 International Foot (FT) = 0.3048 meters
Connecting to the Shape File Data
If the data is incorrectly positioned then:
Note: If you make a change to the coordinate system (.csf) file, you must use Warehouse > Connections command to Reopen the connection or exit and reopen the GeoWorkSpace (.gws) file.
Note: The Properties button is only enabled after you select the connection (far left side of the connection name).
FOLDERNAME=[Full path to .csf file name]
ShapeFile1=[Full path to .csf file name]
ShapeFile2=[Full path to .csf file name]
Easiest to organize the shape files into folders based on coordinate system. (Example: do not place shape file data of two different coordinate systems in one folder). If you must