Receive grid events

ArcGIS is enabled for listening to grid events as long as the lightening bolt is enabled on the OpenSprit toolbar and the "GIS Grid Event" option is chosen in the options dialog:

 

 

When a grid event is received a new raster feature will be created and added to the map with a default rainbow color scale:

 

 

 

The raster feature will be written to disk as an IMAGINE image in a working directory specified in the OpenSpirit options dialog (default in the users home directory):

 

 

The created raster feature will have the CRS as set on the grid event by the sending application.  If the raster feature CRS has a datum that differs from the current map display CRS datum and a suitable transform is not already set in the ArcGIS project, the user is prompted to select a transform from a list based on the EPSG database used by the OpenSpirit coordinate service.  If the CRS has a list of fall-back transforms, the user will be prompted to select one to use; otherwise, the preferred transform on the CRS will be set on the ArcMap map. Tthe details of the EPSG parameters may be shown in order to help guide this transform selection.