Let's first describe how to set up segments then move on to the Segments Map.
Segments are created automatically when on a Match Details page, the ICW is set to start with M for maternal or P for paternal, AND the confirmed ancestors (MRCA) for that match are selected.
To view segment information, on the Main page, right click on the segment on the chromosome map and the Segment Details page will be displayed showing the surnames associated with those ancestors and the matches that were used to create the segment.
|Segments Detail Page|
A temporary segment is created when setting the ICW and confirmed ancestors on the Match Details page. If that information is changed in the Match Details page, then the temporary segment will also change.
When you are confident of a segment's definition, make it permanent by clicking on the Save button and you will be given the option of naming the segment id and marking the ICW of other associated segments with the segment id. You may also add comments to the segment description.
Use the Delete button to remove permanent segments no longer wanted.
There are times when mapping an ancestor is desired but intervening ancestors are not known as in the case of adoptees or in trying to push through a family tree dead end. Adding a manual segment allows for the identity of the known segment.
Some thought needs to be given to how to use permanent segments and how to assign segment ids. It took me several attempts to settle into what was acceptable for my data.
It is recommended that you backup your database and experiment before settling on a particular course of action.
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