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Demonstration of a new display (lower right), that shows the overlap of strings during string crossings and double stops. The string overlaps are calculated based on knowledge of the tension of the bow hair and the strings, from which the displacement under influence of bow force can be calculated. Bowing direction is also shown by line color (down bow = blue, up bow = red).
I also improved the rendering of bow force (upper right panel). The scale is inverted, which gives a better intuition of "pressing" into the string. Also the color scale is indicated in the graph now, to make a stronger association between line color and bow force.