In a BubbleChart, how can I influence the elements plotted depending on a value in the tuple plotted?

I want to create a BubbleChart from the following data:

 lines = {{1, 10, 2}, {2, 15, 1}, {3, 27, 4}, {4, 35, 2}}

but instead of the bubbles, I want to draw a line as long as z.

  • $\begingroup$ had to reward myself by smarty-pantsing the answer right away, as it took some reading the documentation. Sadly, the predictive interface did not do my homework for me... $\endgroup$ – Florenz Kley Nov 13 '13 at 22:45

ChartElementFunction to the rescue! It not only has a couple of builtin functions to change the plotted elements


{"Bubble", "FadingBubble", "GradientBubble", "MarkerBubble", \
"NoiseBubble", "OscillatingBubble", "PolyhedronBubble", \
"SphereBubble", "SquareWaveBubble", "TriangleWaveBubble"}

but it's also possible to define a custom function that will be fed by BubbleChart. For each plotted tuple, it receives [region, values, metadata] and can be used to plot lines like

lines = {{1, 10, 2}, {2, 15, 1}, {3, 27, 4}, {4, 35, 2}}
doline[___, {x_, y_, z_}, ___] :=
 Line[{{x, y}, {x + z, y}}]
BubbleChart[lines, ChartElementFunction -> doline]

enter image description here

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