I have a scatter series where all the values are aligned at Y == 1.0. The RadChart is inside a grid with a gridsplitter controlling the space available for the RadChart. Now, if I scale the view vertically, sometimes values are displayed incorrectly (see red triangles in the example screenshots below). This issue doesn't appear always, but often enough to be a serious problem for us. If the problem occurs, the only way to fix it is to resize the RadChart again, horizontally (always fixes the problem) or vertically (usually fixes the problem, sometimes the problem reappears).
We are not changing the data bindings or anything like that, we are simply rescaling the grid view with the gridsplitter. With the data in the screenshots it is very easy to see that triangles were rendered at incorrect Y-values. But we have other visualizations where the scatter data is not aligned to a single Y axis value and we can't afford the items to be displayed at incorrect values!
I'm limited to version Q2 2011, what can we do to fix this?
After scaling vertically:
And after additional scaling:
Here's an example of the blue and red scatter series, both using exactly the same data binding:
Obviously, this is not acceptable.