Scatter plot with many colors

[DKL1972]

How would I go about creating a Scatter Plot (QwtPlotCurve with a NoCurve style and a QwtSymbol) using many colors for the symbols instead of just one?

Thanks.

[Uwe]

What is the meaning of the colors in your case ?

Uwe

[DKL1972]

Hello.

I am trying to use color intensity to represent different values at a specific point (a third dimension).

Thanks.

[DKL1972]

The only way I came up with is to implement my own MyCurvePlot and override drawSymbols with my own colors before drawing each symbol. Is this the best way?

Thanks.

[Uwe]

Yes, it is.

A special curve that displays 3D points, where the z-value is mapped to a color using a QwtColorMap is on my TODO list for Qwt 5.2. Maybe have a look at the QwtSeriesItem/QwtSeriesData templates in SVN trunk ( = 5.2 branch ), that make such an implementation much easier, than with Qwt 5.1.

Uwe