GEPS 030: New Visualization Techniques

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The purpose of this GEP is to discuss new visualization techniques for possible inclusion in Gramps.

Background

Fan Chart

At present Gramps offers two graphical visualizations of genealogical data as views:

Some Addons:

A number of graphical and GraphViz based reports for printout:

As well as a graphical default gramplets:


In the last few years papers have been published describing new visualization techniques.


Quilts

Quilt

Family trees are presented in the form of a grid.

Feature request "4649: GeneaQuilts visualization integration" asks for this functionality.

A video, demonstration software, and a paper describing the technique can be found on the Aviz website.

Status: A Gramps implementation is currently being written (Nick Hall)


TimeNets

TimeNet

This is a type of timeline tree.

TimeNets, enable analysis of families over time, by prioritize temporal relationships, in addition to the family structure. Individuals are represented using timelines that converge and diverge to indicate marriage and divorce; directional edges connect parents and chil- dren.

Note: Wilfried Trabold pointed this out on the gramps-users mailing list in December 2010. Gerald Britton[1] was in a side-discussion with the authors to explore the possibility of working together to include this in Gramps.

Status: Not known.

Dual Trees

Dual Trees

This is a method of combining graphs in a single display.

  • Bi-directional top-down node-link diagrams
  • Used for navigating genealogical graphs (family “trees”)

Status: Unexplored.


The H-Tree

The H-tree

A structured, space-efficient technique for pedigree visualization (to display ancestral trees).

Status: 6389 Working trial for Gramps 3.4.2 windows portable

Trial 31 person (5 generation) H-tree on Gramps 3.4.2


The Gene-Tree

The gene-tree (Cranefoot)

A structured, space-efficient technique for pedigree visualization (to display ancestral trees), using colors and symbols. This type of tree is often used for medical usage.

Status: Unexplored.

See also:


References

Feature Requests

  • 4649: GeneaQuilts visualization integration
  • 2611: Alternative Genealogy Graphs - Original idea for Fan Chart, Dual Trees, and other ideas
  • 4169: To generate a numbering class for mapping indiviuals according to start person (temp snapshot) and for generating Pedigrees, Charts, Gramplets, Tools with duplicated ancestors match support.
  • 815: I would like to have a graphical view of relationships
  • 6048: Descendants View, a "reverse" Pedigree
  • 3590: Relationships domain
  • 4564: Ancestor Medical Record
  • 2218: Medical genetics
  • 6486: When first cousins marry
  • 2266: Different modes in Pedigree view
  • 864: Family Wheel - input UI
  • 1373: Want a complete graphical view, like in Kith and Kin
  • Alternate FanChart [2]