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