CategoryTextAnnotaion for CategoryPlot

jaypee · Post by **jaypee** » Tue May 09, 2006 4:48 am

Hi there. I was wondering if you guys could help me out on this.

I tried using the CategoryTextAnnotation however the annotation does not show up where I want it to show.

I don't know how to go about this. How do I get the x and y value for the point in the the dataset so I could put the annotation?

I used this:

Code: Select all

plot.addAnnotation(new CategoryTextAnnotation("This is a test annotation","Line",0.184));

the 0.184 value was hard coded. but this should be dynamic....

thanks for the help

Post by **david.gilbert** » Tue May 09, 2006 9:50 am

Annotations are placed at fixed points on the chart. There's nothing to stop you querying your dataset to determine the position, but once placed the annotation won't move if the dataset is modified.

Perhaps you need to use item labels rather than annotations. These are drawn by the renderer, and automatically get placed relative to the data value.