Calculates coordinates to plot each ancestors and descendant of a variety in a lineage. The x and y values describe the coordinates of the label, while the xstart, ystart, xend, and yend values describe the edges of the label.
buildAncDesCoordDF(df)
the data frame of the ancestors and descendants of a variety (from function buildAncDesTotalDF)
buildAncList
for information on determining ancestors
buildDesList
for information on determining descendants