For the current directory it calculates file and directory sizes and
shows the results as a chart in a modal window with some interaction.
Requires .NET Framework 4.0
Distributed as the NuGet package: https://www.nuget.org/packages/FarNet.FolderChart
HOW TO DOWNLOAD AND INSTALL
Download and install manually (normally not recommended): https://nuget.org/api/v2/package/FarNet.FolderChart
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Обсуждение
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Pictures of two modes (pie and bars):

