I'm still working on my big grid, and I've that GoDiagram works pretty well.
I'm now facing a strange problem :
I'm having a layer for selection (above all others) and I'm creating transparent rectangles in it (object derived from GoRectangle - no override from ComputeBounds or Paint). I set the bounds of the rectangle to a given height and to the width of the document (so I can scroll without to update my rectangle bounds).
With a with of 8'107'968.5f it is still ok, with 9'324'163.0f, the bounds are set correctly but the object is not any more drawn.
Any idea ?