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Tkcanvplot is a plotting extension for Tk canvas. Currently it supports plotting of XY data onto a viewport, which is created on a Tk canvas. This makes it easy to add other canvas items, such as text, arcs or lines independently.
This is a generalized rack widget written using the Gnome Canvas, which is specifically targeted for scientific operations (including Chemistry/Biology). The main purpose of the widget would to visualize standardized containers such as microtiter plates.