TMathImage is a component derived from TGraphicControl that I wrote for my own purposes as a basis for interactive math applications. For example, the world coordinate scaling has been moved to a different object TWorldDrawing, which can also be used standalone to draw on any canvas you like, provided you give it the screen and the world dimensions. TMathImage itself is now derived from an inbetween TGraphicControl descendent called TOverlayImage. Also check out the included demos.
Source code is included.
I'm happy about any feedback, in particular about things that do not quite work. Since this is a major change, I'm expecting to have some bugs built in right now. I am relying on user feedback on this, so this is a beta version. The thing I am most concerned about is performance under Windows 98, as I've seen problems there. Hope after the last changes they are gone, though.