Bifurcation diagram

[Durkin]

Hello,

I would like to draw a bifurcation diagram like this one.
The way I see it, I need

i) a curve that allows multiple "y" values for an x
ii) at a bifurcation point the curve should split

I 've had a look at the qwt classes, however I 'm not sure if any of the plots or sample series are suitable for this. Any thoughts as to which should be used would be appreciated.

[Uwe]

To be honest - from the link I didn't get what data has to be displayed how. But in the end this is what decides wether you have to implement a new type of plot item or you can use an existing one.

Uwe

[wysota]

To be honest - from the link I didn't get what data has to be displayed how.

I think that you have to read the chart from left to right -- there is one curve that splits into two at some point, continues going right, each of the two curves split again and again and again in the end resulting in 2^n values for a single argument.

[Uwe]

Ah o.k. this defintly looks like implementing a new type of plot item. The first step is to define a data structure for this special curve - then writing the drawing code should be straight forward.

Uwe

[Durkin]

OK. For now I seem able to achieve the diagram by using QwtPlotCurve::NoCurve and plotting many points as small circles instead.