The purpose of this note is to serve as a central location for features of a web-based family tree visualization tool I have been playing with.
The tool itself is still a work-in-progress, and feature requests/comments are appreciated - just shoot me a note at firstname.lastname@example.org
- Location of Family Tree Visualization Tool
- Moving Mouse over Nodes for More Information
- Basic Button Functionality
- What do the lifespan indicators show?
- What are those green lines on the right?
- Cousin Calculator
- Collapsing a Specific Path
- Navigating the Currently Displayed Tree
- Navigating the Currently Loaded GEDCOM File
- Miscellaneous Notes
There are currently two different ways to load the tool. One way will show the lifespans for three generations from the root person in an ancestor tree, the other will not. It is planned that this option will be moved to a configuration menu, and only one url will be necessary.
- Location of the tool, where it shows lifespans: https://learnforeverlearn.com/ancestors/?lifespan=true
- Location of tool, where it does not show the lifespans: https://learnforeverlearn.com/ancestors
In both cases, by default it will load a random family tree from a number of "Famous People" sample trees. You can then choose to upload your own family tree that is in a gedcom file, or simply explore the samples.
You can pan and zoom in the tree - drag for pan, mousewheel for zoom.
Moving your mouse over the nodes will bring up a informational popup for that person.If you click the node, the popup will stay open and can be dragged around with your mouse, and there will be a few more options available in the popup.
In addition, the path from the root person to that person is highlighted, and the nodes for all other ancestors at the same level are highlighted by enlarging the nodes slightly.
The figure below highlights the main functionality available via the buttons.
If the person is deceased, the "lifespan" displayed will show a rectangle indicating the lifespan of the individual. As you move the mouse over the rectangle, it will display how old that person was in the year that reflects where the mouse is (there is a long horizontal line that moves with the mouse). The estimated lifespans are based on mortality tables.
over the rectangle for the lifespan, the viz will display how old that
person was in the year that reflects where the mouse is
over the rectangle in the future, the viz will display how old that
person will be in that year, as well as
the probability that the person will live that long.
The green lines on the right indicate family events. Moving your mouse over these will show the events as well as any historical events for that year as well..
will reveal family and historical events
How is one person in the tree related to another person in the tree? For descendant trees, you can see. The steps to do this are shown in the screenshot below. For trees with lots of pedigree collapse, two people can be related in various ways, and these will be shown with the tool.
You can "collapse" a specific path in the full tree (ancestor or descendant tree) to a straight path showing all the people in that particular path.
The video below demonstrates how to easily navigate the people in the current tree.
The video below demonstrates how to easily navigate ANY of the people in the currently loaded GEDCOM file (including searching by name). You can also quickly change to the ancestor/descendant tree for people that are in the GEDCOM file but not in the currently displayed ancestor/descendant treethis way.
While it is planned to have options to show full trees, the tool currently shows only ancestor or descendant trees starting at a particular person.
As far as I know, you can export a GEDCOM file of your tree from any of the common family tree software and web sites (e.g., Ancestry.com). The details on how to do this will depend on which tool you are using. Please feel free to contact me at email@example.com if you are having problems with that step, and I will see if I can help.