Hi, Is there a way to plot a point at a given location (x,y) using the plotStuff class ? or should I use the OpenGL functions ? Basically I have a contour plot plotted in a window and i want to plot points at different locations (also later with different colors) I tried something like : DataPointMapping map; map.setDataPoints( points, 1,1); MappedGrid mg(map); mg.update(); here "points" is of dimension (1, 0:1). But this doesnt work.. I think we cannot generate a MappedGrid with just 1 point...? Any other ways ? Thanks, Dominic