Hierarchy

These IronPython scripts below show how to modify any of the Treemap visualization settings found on the Hierarchy tab of the Treemap Properties dialog box in the Spotfire user interface.
Note

In each of the scripts below, it is assumed that the MyVis variable references the targeted visualization. See here for more information about referencing visualizations.

Change the Treemap Hierarchy Custom Expression:

from Spotfire.Dxp.Application.Visuals import *

myVis = myVis.As[Visualization]()

# Single category column
myVis.HierarchyAxis.Expression = "<[Column A]>"
# OR, for example, nested category columns
myVis.HierarchyAxis.Expression = "<[Column A] NEST [Column B]>"

Note

If you aren't sure how to write a specific custom expression correctly from scratch, start by building the expression interactively using the Spotfire user interface. Once your custom expression is working correctly, right-click on the custom expression input box selector(s) and choose Custom Expression. You can then copy the expression shown into your IronPython script.

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