The object lineage view is designed to inspect temporal evolution of objects of interests, for example, stem cell colonies. In the cell biology data sets, cell colonies can only merge and hence their lineage information forms a tree structure over time. The lineage view contains a set of connected nodes with colony identifications (ID) and nodes placed at the time when a colony ID was created. A new colony ID is created for each colony in the first frame and for a merged colony. An example lineage view is shown in Figure 1.
By clicking on each node, a user can obtain additional information about the birth and death time frames of a colony from a pop-up dialog as illustrated in Figure 2. The pop-up dialog also allows a user to switch from the lineage view to image or database views using hyperlinks.
Lineage view: parameter selection
The lineage view has two parameters that can be changed in the two
edit box on the left side of the lineage view (see Figure 1).
A user can select one of the three replicates.
A user can enter a single colony ID.
A user can enter how many levels of the tree from the
selected colony ID node should be displayed.
Figure 2 illustrates the case of depth equal to one and two.
If the symbol “*” is entered then all levels are shown.
Updating lineage by clicking on the "Submit" button
A user can change the magnification of a lineage view by
using the scroll wheel on a computer mouse.