Difference between revisions of "User:GaryGriffin"

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[[Addon:DNASegmentMap]] (Addon:DNAgramplet was the original name but is now a double re-direct.)
{{Third-party plugin}}
The {{man label|DNA gramplet}} is designed to create a graph of shared DNA segments. To specify shared segments between 2 people, create an Association for one person (Person A) with another Person (Person B) of the type DNA. Create a Note in the Association with the shared segment data. The format of the Note is a comma separated list in the order: Chromosome Number, Start Segment, End Segment, flag for maternal/paternal side, shared length in cMs.
The paternal/maternal flag should be
{| {| {{prettytable}}
|Maternal side
|Paternal side
|Unknown side
Sites like [https://www.gedmatch.com/login1.php GEDmatch] make this shared chromosome data available. There can be additional Associations between Person A and Person C et cetera as known. A sample set of data in one Note is shown below.
== Example ==
Create an Association of type DNA as described in the [[Gramps_{{man version}}_Wiki_Manual_-_Entering_and_editing_data:_detailed_-_part_1#Associations|Association]] page to Person A. Add a Note with the DNA shared segment data.
Save the Association.
Add more associations as known. Each would be associated to a different person and have a different Note.
Add the DNA gramplet to the Person view. Select the DNA tab. The segment map will be color coded by associated person. The P side is the top portion and the M side is the bottom portion for each chromosome. If the segment side is unknown, the segment will cover both the top and bottom portions of the chromosome and be 50% transparent.
Hovering the cursor over a known  segment will pop up the name of the associated person and the length (in cMs) of the shared segment.
= Issues =
* If the Chromosome Number is not in the range (1, 2, ..., 22, X) it is ignored.
* If there is a Most Recent Common Ancestor (MRCA), that relationship is used instead of the maternal/paternal flag. If the MRCA is thru the maternal side, then M is used independent of what is in the data file. If there are multiple paths to a common ancestor, the closest found is used.
* To create a segment map for Person A, you need to add associations to Person A. There is no reciprocal relationship for Person B - that is, there is no segment map for Person B, only for Person A. You can execute the [[Addon:SyncAssociation]] addon to create any missing reciprocal relationships.
* Color code for each associated person in the map is consistent but not user-specified. The first Association will always be the same color.
* [https://github.com/gramps-project/addons-source/tree/maintenance/gramps51/DNA Source code] - Unlisted Gramplet you need to manually download and install ( include_in_listing = False )
= See also =
* [[Addon:SyncAssociation]] - For every Association, if there is not a reciprocal Association it is created. That is, if there is a DNA Association with a Note for A to B, then if there is not a DNA Association with B to A, it will be created with the Note.
* [[Gramps_{{man version}}_Wiki_Manual_-_Entering_and_editing_data:_detailed_-_part_1#Associations]]
* [[Roles, Relationships & Associations]]

Latest revision as of 18:58, 19 November 2020

Addon:DNASegmentMap (Addon:DNAgramplet was the original name but is now a double re-direct.)