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Yes. I am doing the same for XYErrorRenderer and using XYIntervalSeriesCollection. But the scale on which it plots the point looks very bad. While if I normally plot the points on an XY plot without drawing any error bars, it looks good.

This renderer needs OHLC dataset in which every OHLC data item needs Date on x axis. I have normal (x,y) points to be plotted and (x-deltaX -> x+deltaX) to be shown via whiskers.
Also, why this renderer is developed specific for date purpose?

Documentation says "for use with CategoryPlot". I have XY Plot. I cam across XYError renderers for XY plots. But that doesn't seem to be working good.

I am drawing a scatter plot and need to show ranges in that. Like left and right range. By range, what I mean is, for the current (x,y) point on the scatter plot, i need to draw whiskers i.e. a line from x-(deltaX) to x. I don't want a simple straight line but somewhat like how minimum and maximum v...

How to add annotations in graph plot when the renderer used is XY Block Renderer (XYZ dataset). I tried using plot.addAnnotation(x1,y1,x2,y2,stroke,color). But nothing i can see.

I am creating the X and Y axis of the jfreechart using symbol axis and want to rotate its tick mark labels by any angle say 45. Using setSeriesPositiveItemLabelPosition() is not working.
Any way to do so?

My use case is just labelling blocks in lets say three categories A,B,C. They already have some colors and adding some more to them may make them tough for user to comprehend. That's why something simple like a small text label I am searching . However, an example of you suggestion will be helpful.

I want to distinguish the blocks of XYZDataset renderer via XYBlockRenderer. Please see, they already have z values by which they get color. But what I need is something like adding label to each block, like a simple alphabet for labelling every block. Semantically I can say adding categories. Any i...

Changing z-value and then adding notifylistener calls the getPaint() for every dataset item i.e. whole repaint is happening. Shoudn't there be an easier method for this?
Also, why doesn't XYZDataset provide setZValue(int series, int item) when it provides getZValue(int series, int item) ?

Yes, I can return the desired color. I am currently also doing the same but how to modify the color for a particular item of XYZ dataset. On mouse over, I want color of only one particular item to be changed. getPaint() distinguishes color using the z-value, not on the basis of item number. That is,...

I am using XYBlockRenderer for XYZ dataset having items. Color of every item is a function of its z value. I am using paintscale to assign the color. Now, I want to change the color of any particular item, lets say 9'th on mouse over. But this should change color of only 9'th item number of the data...