Addon:HtreePedigreeView
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H-Tree Pedigree view is an interactive 
Charts category view addon that presents a navigable ancestors tree using the current Active person as a starting point. Clicking another person in the family tree will make that person the active person and will redraw the family tree based on them.
The H-Tree is a structured, space-efficient technique for pedigree visualization (to display ancestral trees).
The H-tree based layout can be used to display ancestral trees. This layout increases the number of displayable generations, via a symmetrically arranged structure, provides the user with an overview that allows them to understand and navigate through the data.
Contents
Usage
From the Charts category view select the H-Tree Pedigree view icon or select View > H-Tree Pedigree View from the menu.
Colors for the views person nodes can be modified in Edit > Preferences > Color.
Key to chart
Reading the H-Tree Pedigree view.
The view is focused around the Active person who is shown in the center.
[Active Person]
The active persons parents are shown above (father) and below ( mother) them.
[Father]
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[Active Person]
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[Mother]
Then the Active persons grandparents are shown to the left (grandfather) and right (grandmother) of the parents.
[Paternal Grandfather] - [Father] - [Paternal Grandmother]
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[Active Person]
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[Maternal Grandfather] - [Mother] - [Maternal Grandmother]
and then the Grandparents parents would be shown above and below them and so on....
Configure the active view
You can configure the following options on the Layout tab:
Layout tab
- Show images (checkbox checked by default)
- Show tags (checkbox unchecked by default)
- Tree size:
5(default) range 2 to 6 generations.
H-tree will display the following number of people if the Tree size: (generations) is set to:
- 2 generations = 3 people total
- 3 generations = 7 people total
- 4 generations = 15 people total
- 5 generations = 31 people total
- 6 generations = 47 people total
Depending where you click two context menus are available.
Blank area
Using the Context menu (right click) in a Blank area shows the following options
- Previous
- Next
- Home
- Mouse scroll direction
- Top <-> Bottom (default)
- Left <-> Right (default)
- About H-Tree - will bring you to this page for help.
Person nodes
Using the Context menu (right click) on a Person node shows the following options in addition to those shown on a Blank area.
- [Persons name]
- Edit
- Copy
- Spouses
- Siblings
- Children
- Parents
- Related
Issues
- Issue in title bar of Gramps shows "H-tree Pedigree" View instead of "H-Tree Pedigree" View ( issue is lower case "t" in "H-tree" )
- Drawing issues for "Tree Size" 6 (center three boxes for child and parents are too large and overlap other generations)
- Feature: Add connecting lines to show relationships between people and make the chart clearer to read
Development history
- See 6389 H-Tree visualization 2013-01-30
- (Gramps-devel) H-Tree visualization trial From: Pat L. - 2013-01-30 08:24:58 - Initial announcement
