Add Coordinates

If your data contain coordinates you can add additional coordinates in a different system for those dataset, where entries of the additional coordinate system are missing. E.g. you can add WGS84 coordinates on the basis of Gauss Krueger coordinates. In the Add coordinates tab choose the project you want to update and an optional upper limit of the datasets. Then select the source coordinates and the coordinate system these should be converted into. Click on the Start conversion button to start the conversion. If a conversion is not possible, the fields for the target system will be empty as shown below. The option Keep accuracy ensures that the accuracy if present in the original data will be copied into the new generated coordinates. Click the Insert coordinates button to insert the new coordinates into you datasets. 

Add WGS84 Coordinates for UTM

For adding WGS84 coordinates on the basis of existing UTM entries, you may have to specify the grid zone if this is missing in the data. By default the resulting WGS84 coordinates are rounded to 6 places corresponding to an accuracy of 1 m. In case you want to avoid the rounding of the calculated values, uncheck the Round to option (see below). By default the accuracy of the original data is kept. If you uncheck the Keep accuracy option the software will calculate an approximate value according to the given data. 

Calculate Coordinates

If your data contain coordinates e.g. written as non numeric entries like 59°21'W 10°12'S you can try to calculate numeric values from these entries (see below). Select the project, the maximal number that should be parsed and the type (currently only WGS84). Then start the conversion with a click on the start calculation button. Click the Insert coordinates button to insert the new coordinates into your datasets. 

Check Coordinates

If your data contain coordinates these may be inconsistent between the 3 places the coordinates are stored. To fix these inconsistencies use the functions showed in the image below and a short tutorial . 

Add Coordinates for TK25 entries

If your data contain TK25 (= MTB) entries you can try to retrieve the coordinates and geography for these entries from data in the module DiversityGazetteer (see below). If the source database is located on a different server, select the source from the list (for adding source databases see chapter Connections). As the retrieval of the geographical data is rather time consuming, you may restrict the number datasets tested. Choose a project and click on the Find differences button to search for coordinates. Click the Start update button to update the TK25 entries with the found coordinates. 

Add TK25 entries for WGS84 coordinates

If your data contain WGS84 coordinates you can try to retrieve TK25 (= MTB) entries for these entries from data in the module DiversityGazetteer (see below). Select the source for the geographical information. If the source database is located on a different server and not connected via a linked server, select the source from the list (for adding source databases see chapter Connections). As the retrieval of the geographical data is rather time consuming, you may restrict the number datasets tested. By default the range for the search is restricted (Lat.: 47.1 - 55.2 and Long.: 6.0 - 15.2) to avoid the inclusion of coordinates where no TK25 information is expected. Choose a project and click on the Find missing TK25 button to search for coordinates. If you want to check a single dataset in the main form, mark this dataset and click on the button Close form and check dataset in database . Click the Start insert button to insert the TK25 entries for the found coordinates. 

A precondition for the above described handling of the TK25 datasets is the availablity of the corresponding data in the Gazetteer database. The current range is shown in the image below. 

Coordinates outside TK25

If your data contain WGS84 coordinates outside TK25 (= MTB) entries these can be detected in the Coordinates ouside TK25 part. Choose the project and click on the Find differences button. All entries with coordinates outside a TK25 entry for the same event will be listed (see below). Click on the Close form and check all detected datasets in main form  button to close the form and list the detected datasets in the main form.  

Find coordinates outside an area

If your data contain coordinates these may be positioned outside an area e.g. due to swapping latitude and longitude. You can detect these errors by comparing all coordinates within a project with an area as provided by DiversityGazetteer. In the maintenance form choose Events - Coordinates - Coordinates outside area. You may restrict the search with the country , the localisation sytem and the description of the locality (please use wildcards like %). The areas for comparison are provided by DiversityGazetteer. Choose one of the sources for areas. With the and buttons you can edit the list of area types from which the area is selected. Click on the Choose area for comparison button to select the area the coordinates should be compared with. A window will open where you can select among the areas provided by the DiversityGazetteer database you selected as a source. Finally click on the Find coordinates outside the area button. All corresponding localisations will be listed as shown in the image below. To inspect a single dataset, select it in the list and click on the Check selected dataset button. To edit the data in the main form, click on the Edit datasets in main form button. If you mark some datasets in the list, the selection in the main form will be restricted to these. Otherwise all datasets from the list will be shown. For an introduction see a short tutorial .