I have a CSV with filesystem data; file paths and size. I've created a treemap chart from this data, but the problem is that the treemap doesn't seem to take hierarchy into account. Each data point, no matter how deep in the hierarchy, is shown at the top level. I'd like it to appear more like the chart in WinDirStat/KDirStat, where each point is grouped hierarchically, by subfolders.
Full story: I'm trying to generate a chart like WinDirStat does, silently and from the command line. I have a PowerShell script that generates the CSV just fine. But if there's a better way, I'm open to it.