cabruen@athena.mit.edu (Charles Alan Bruen) (02/20/91)
I just need advice from the more experienced Programmers out there. How should I store the information I want drawn in a window. (I know how to actually do it) IM suggests that you not draw to the screen directly but save the information somehow (it fails to mention). Problem: In a window a have a plot of a function. I do all the calculations as I draw the plot in the window. If I later get an update event for that window, do I have to redo the calculations to redraw the window. This seems like a big waste of effort. What are the ways in which this is solved in the real world? Could I draw to an imaginary Picture and just put that in the window everytime I get an update? Any and all suggestions welcome. -Charles Bruen Aero/Astro MIT cabruen@athena.mit.edu