Here’s an idea for a new kind of fan chart: it has a time scale. Each person’s box is aligned with the time scale according to their date of birth. The colors distinguish the generations.
In this example, which is based on real data, I annotated the boxes with Ahnentafel numbers rather than names, but of course names would be better. (The center of the time scale is 2016 because that’s when I originally created this, as a Christmas gift for my sons. For them, I included a separate numbered list of ancestors with name, dates, and locations.)
I am person number 2. Although my wife (person number 3) and I are close in age, I am a later child of a couple who married when they were older, while she is an earlier child of a couple who married when they were younger; thus, my parents (4 and 5) were born in the same years as her paternal grandparents (12 and 13), while my wife and I were born within two years of each other.
That’s the reason for color-coding by generation, since the people in each generation aren’t aligned as they would be in a traditional fan chart. (I wanted to give my sons a visual sense of when each of their ancestors actually lived.) An alternative variation in the coloring scheme could indicate country of birth or some other bit of data.
Obviously, it only works if you have a birth date (or at least an estimated year of birth) for each person in the chart!
Maybe the same idea could also be applied to a descendant fan chart, but I haven’t thought about that much.
Does anyone else find this interesting or useful? If so, would anyone like to develop it in Gramps? I would be happy to test it.